CN215883290U - Motor suspension structure and system - Google Patents

Abstract

The utility model provides a motor suspension structure and a motor suspension system, the motor suspension structure comprises a suspension bracket and a suspension shaft sleeve which is pressed in the suspension bracket in an interference fit manner, a motor connecting part for connecting a motor is arranged on the suspension bracket, the suspension shaft sleeve is provided with a shaft sleeve outer pipe and a shaft sleeve inner core which is connected in the shaft sleeve outer pipe through a shaft sleeve colloid, an auxiliary frame connecting part for connecting an auxiliary frame is arranged on the shaft sleeve inner core, two ends of the shaft sleeve inner core respectively extend out of the suspension bracket, one end of the shaft sleeve outer pipe is provided with a limiting flanging which is arranged in an outward-turning manner, and the limiting flanging is abutted against the suspension bracket. According to the motor suspension structure, the limiting flange is arranged at one end of the outer pipe of the shaft sleeve, so that the limiting structure can be integrally formed in the suspension structure, and the influence on the appearance quality of a suspension product due to the fact that the limiting structure is glued can be avoided.

Description

Motor suspension structure and system

Technical Field

The utility model relates to the technical field of suspension, in particular to a motor suspension structure. The utility model also relates to a motor suspension system adopting the motor suspension structure.

Background

The suspension (Mount) is a bidirectional vibration isolation element which is used for connecting and supporting the power assembly and plays a role in restraining and protecting the movement trend of the power assembly. The existing suspensions are mainly of rubber suspensions, hydraulic suspensions, semi-active suspensions, active suspensions and the like, and in the using process, the suspensions can fix and support the automobile power assembly, bear reciprocating inertia force and moment generated by rotation and translation mass of an engine/motor in the power assembly, bear dynamic force acted on the power assembly in the running process of the automobile, isolate vibration of a frame or an automobile body caused by excitation of the engine/motor, and isolate transmission of the vibration of the automobile body to the power assembly caused by road unevenness and road impact on wheels.

Taking the suspension applied to a power assembly adopting a motor as an example, the torque of the motor suspension system at the present stage is generally borne by two bearing suspensions under the working condition of large torque, and the service lives of the two bearing suspensions can be seriously reduced. Meanwhile, glue bonding limiting structures are often adopted on two axial sides of the motor suspension at present, and the appearance quality of the suspension product is easily influenced due to the fact that glue flowing is difficult to avoid.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention is directed to a motor suspension structure, so as to avoid the influence on the suspension appearance quality caused by using glue to bond a limiting structure.

In order to achieve the purpose, the technical scheme of the utility model is realized as follows:

a motor suspension structure comprises a suspension bracket and a suspension shaft sleeve which is pressed in the suspension bracket in an interference fit manner; the suspension bracket is provided with a motor connecting part for connecting a driving motor, and the suspension shaft sleeve is provided with a shaft sleeve outer pipe and a shaft sleeve inner core connected in the shaft sleeve outer pipe through a shaft sleeve colloid; the auxiliary frame connecting part used for being connected with an auxiliary frame is arranged on the shaft sleeve inner core, two ends of the shaft sleeve inner core extend out of the suspension support respectively, a limiting flanging which is outwards turned is formed at one end of the shaft sleeve outer tube, and the limiting flanging is abutted to the suspension support.

Furthermore, the motor connecting part comprises a plurality of motor connecting holes arranged on the suspension bracket, and a weight reduction groove is arranged on the suspension bracket.

Furthermore, the shaft sleeve inner core is provided with a core part positioned in the middle and radial limiting blocks positioned on two opposite sides of the core part, the shaft sleeve colloid is provided with main ribs respectively arranged on the other two opposite sides of the core part and radial limiting rubber blocks respectively arranged right opposite to the radial limiting blocks, the shaft sleeve inner core is connected with the shaft sleeve outer pipe through the main ribs on two sides, and the radial limiting blocks and the radial limiting rubber blocks right opposite to the radial limiting blocks are arranged at intervals.

Furthermore, the main ribs on each side are two arranged in a forked shape, and a plurality of noise reduction bulges are formed on the end face, facing the radial limiting block, of each radial limiting rubber block.

Further, the auxiliary frame connecting part is an auxiliary frame connecting hole arranged on the core part.

Furthermore, lightening holes which are parallel to the auxiliary frame connecting holes are respectively arranged at the radial limiting blocks at two sides, and parts of the lightening holes at each side are positioned on the core part.

Furthermore, a limiting colloid covering the limiting flanging is formed on the shaft sleeve colloid.

Furthermore, vibration reduction bulges are formed on the surface of the limiting colloid and are distributed on the surface of the limiting colloid at intervals.

Compared with the prior art, the utility model has the following advantages:

according to the motor suspension structure, the limiting flange is arranged at one end of the outer pipe of the shaft sleeve, so that the limiting structure can be integrally formed in the suspension structure, and the influence on the appearance quality of a suspension product due to the fact that the limiting structure is glued can be avoided. Meanwhile, the motor suspension structure can be conveniently assembled through the arranged limiting flanging, so that the production efficiency of suspension products can be improved.

In addition, the arrangement of the radial limiting block and the radial limiting rubber block right opposite to the radial limiting block can improve the limiting effect of the suspension, the main ribs on each side are arranged in a branched manner, the vibration reduction and buffering effect of the shaft sleeve rubber body can be improved, and the noise reduction protrusion is arranged, so that the noise generated when the radial limiting block collides with the radial limiting rubber block can be reduced.

In addition, the arrangement of the lightening grooves and the lightening holes is beneficial to the lightweight design of the suspension structure, the auxiliary frame can be prevented from rigidly touching the limiting flanging by arranging the limiting colloid, the arrangement of the vibration reduction bulges can play a better buffering role, and meanwhile, the noise generated when the auxiliary frame touches the limiting colloid can also be reduced.

Another object of the present invention is to provide a motor suspension system disposed on a subframe, wherein the motor suspension system includes a front suspension, and a left rear suspension and a right rear suspension, and the left rear suspension and/or the right rear suspension adopts the motor suspension structure as described above.

Furthermore, the left rear suspension and the right rear suspension both adopt the motor suspension structure, and the limiting flanges in the left rear suspension and the right rear suspension are arranged oppositely.

By adopting the motor suspension structure, the motor suspension system can avoid the influence on the appearance quality of a suspended product due to the gluing limit structure, is convenient for assembling the suspension structure, is beneficial to improving the production efficiency of the suspended product, and has good practicability.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model. In the drawings:

fig. 1 is a schematic use diagram of a motor suspension structure according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a left rear suspension according to an embodiment of the present invention;

FIG. 3 is an exploded view of the left rear suspension according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a suspension bushing according to an embodiment of the present invention;

FIG. 5 is a schematic view of a partial structure of a suspension bushing according to an embodiment of the present invention;

FIG. 6 is a schematic structural diagram of a right rear suspension according to an embodiment of the present invention;

FIG. 7 is an exploded view of the right rear suspension according to an embodiment of the present invention;

FIG. 8 is a schematic structural diagram of a front suspension according to an embodiment of the present invention;

FIG. 9 is an exploded view of the front suspension according to an embodiment of the present invention;

FIG. 10 is a schematic view of the left rear suspension and subframe in accordance with an embodiment of the present invention;

FIG. 11 is a schematic view of the right rear suspension and subframe of the present invention;

description of reference numerals:

1a, left rear suspension; 1b, right rear suspension; 101a, a left rear suspension bracket; 101b, a right rear suspension bracket; 1011. a shaft sleeve mounting hole; 1012. a motor connecting hole; 1013. a weight reduction groove; 102. an outer tube of the shaft sleeve; 1021. limiting and flanging; 103. shaft sleeve colloid; 1031. a limiting colloid; 1032. a vibration reduction protrusion; 1033. a main rib; 1034. a radial limit rubber block; 1035. a noise reduction projection; 104. an inner core of the shaft sleeve; 1040. a core; 1041. a subframe connection hole; 1042. lightening holes; 1043. a radial limiting block;

2. front suspension; 201. a front suspension outer tube; 2011. flanging the outer pipe; 202. front suspension colloid; 2021. flanging the colloid; 203. a front suspension inner core; 2031. a front suspension connection hole;

3. a sub-frame metal plate;

4. the motor is driven.

Detailed Description

It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it should be noted that, if terms indicating orientation or positional relationship such as "upper", "lower", "inside", "outside", etc. appear, they are based on the orientation or positional relationship shown in the drawings and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the appearances of the terms first, second, etc. in this specification are not necessarily all referring to the same item, but are instead intended to cover the same item.

In addition, in the description of the present invention, the terms "mounted," "connected," and "connecting" are to be construed broadly unless otherwise specifically limited. For example, the connection can be fixed, detachable or integrated; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. To those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in conjunction with specific situations.

The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

Example one

The present embodiment relates to a motor suspension structure for mounting a driving motor 4 on a subframe, wherein the motor suspension structure may be integrally arranged as shown in fig. 1 when the driving motor 4 is mounted, and the motor suspension structure of the present embodiment is specifically a left rear suspension 1a or a right rear suspension 1b in fig. 1.

At this time, the motor suspension structure constituting the left rear suspension 1a or the right rear suspension 1b described above includes, as a whole, a suspension bracket, and a suspension boss press-fitted into the suspension bracket with interference. The suspension bracket is provided with a motor connecting part for connecting the motor 4, and the suspension shaft sleeve is provided with a shaft sleeve outer tube 102 and a shaft sleeve inner core 104 connected in the shaft body outer tube 102 through a shaft sleeve colloid 103. Moreover, a subframe connecting part for connecting with a subframe is arranged on the shaft sleeve inner core 104, two ends of the shaft sleeve inner core 104 also respectively extend out of the suspension bracket, meanwhile, a limiting flange 1021 which is outwards turned is formed at one end of the shaft sleeve outer tube 102, and the limiting flange 1021 abuts against the suspension bracket.

Specifically, taking the left rear suspension 1a as an example, as shown in fig. 2 and 3, the suspension bracket of the left rear suspension 1a is specifically the left rear suspension bracket 101a, the motor connecting portion specifically includes a plurality of motor connecting holes 1012 arranged on the left rear suspension bracket 101a, and in order to facilitate the weight reduction of the left rear suspension bracket 101a and the weight reduction of the entire suspension structure, the suspension bracket is also provided with a weight reduction groove 1013. The weight-reducing grooves 1013 are plural and arranged based on the shape of the left rear suspension bracket 101a, and each weight-reducing groove 1013 may be integrally formed at the time of casting the left rear suspension bracket 101 a.

In this embodiment, the suspension bushing is specifically press-fitted into the bushing mounting hole 1011 on the left rear suspension bracket 101a by interference, and as shown in fig. 4 and 5, the bushing inner core 104 has a core 1040 located in the middle and radial stoppers 1043 located on two opposite sides of the core 1040. The shaft sleeve colloid 103 has main ribs 1033 respectively disposed at the other two opposite sides of the core portion 1040, and radial limit colloid blocks 1034 respectively disposed opposite to the radial limit blocks 1043. The sleeve inner core 104 is connected to the sleeve outer tube 102 through the main ribs 1033 at both sides, and meanwhile, each radial stopper 1043 and the radial stopper 1034 facing thereto are also arranged at intervals, and a gap is formed between the facing radial stopper 1043 and the radial stopper 1034.

Each radial limiting rubber block 1034 is fixedly connected to the inner wall of the outer sleeve tube 102, the radial limiting block 1043 on each side is also of a substantially convex T-shaped structure, and when the suspension structure is excited by external vibration during use, the radial limiting block 1043 can collide with the radial limiting rubber block 1034 right opposite to the radial limiting rubber block, so that a certain limiting effect can be achieved on the vibration displacement of the driving motor 4 installed through the suspension structure, and the driving motor 4 can be prevented from colliding with peripheral parts due to too large vibration amplitude.

In this embodiment, in order to reduce the impact noise when the radial stopper 1043 collides with the radial stopper rubber blocks 1034, a plurality of noise reduction protrusions 1035 are also formed on the end surface of each radial stopper rubber block 1034 facing the radial stopper 1043, and the noise reduction protrusions 1035 are integrally formed on the end surface of the radial stopper rubber block 1034 and sequentially arranged on the end surface of the radial stopper rubber block 1034. Meanwhile, the shape of the noise reduction projection 1035 may be a hemispherical projection, a cylindrical projection, a pointed conical projection, or the like.

As also shown in fig. 4, the main beads 1033 of each side are specifically two arranged in a bifurcated shape, and the main beads 1033 of both sides are respectively in a ">" shape and a "<" shape. It should be noted that, referring to fig. 1 and fig. 2 again, the connecting line direction of the main ribs 1033 on both sides of the present embodiment is also in the front-back direction of the left rear suspension 1a when in use, which is also the vibration excitation along the length direction (X direction) of the whole vehicle, and is mainly borne by the main ribs 1033 arranged on both sides of the shaft sleeve colloid 103. At this time, the main ribs 1033 on each side are designed to be two in a fork-shaped arrangement, and obviously, a better buffering and vibration damping effect can be achieved.

In this embodiment, the sleeve colloid 103 is also connected with the sleeve outer tube 102 and the sleeve inner core 104 by means of vulcanization. The subframe connection portion is specifically a subframe connection hole 1041 provided in the core portion 1040, and the subframe connection hole 1041 axially penetrates through the sleeve core 104. In addition, in order to reduce the weight of the shaft sleeve inner core 104 and facilitate the light weight design, the radial limiting blocks 1043 on both sides are also respectively provided with a weight reducing hole 1042, each weight reducing hole 1042 is arranged in parallel to the subframe connecting hole 1041 and also penetrates through the shaft sleeve inner core 104, and with continued reference to fig. 4, the weight reducing holes 1042 on each side are also partially positioned on the core 1040.

Still referring to fig. 2 and 4, the limiting flange 1021 is annular and is integrally formed at the end of the sleeve outer tube 102. On the basis of the limit flange 1021, in order to avoid rigid contact between the auxiliary frame and the limit flange 1021 in use, a limit colloid 1031 covering the limit flange 1021 is also molded on the shaft sleeve colloid 103. Meanwhile, as a further preferred embodiment, a plurality of vibration reduction protrusions 1032 are further formed on the surface of the limiting colloid 1031, and the vibration reduction protrusions 1032 are specifically arranged on the surface of the limiting colloid 1031 at intervals. Through the setting of the damping projection 1032, a better buffering effect can be achieved on the basis of the limit colloid 1031, and meanwhile, the setting of each damping projection 1032 is similar to that of the noise reduction projection 1035, so that the noise generated when the auxiliary frame is touched by the limit colloid 1031 can be reduced.

The structure of the right rear suspension 1b of the present embodiment is shown in fig. 6 and 7, in which the suspension bushing in the right rear suspension 1b is interference-mounted in the bushing mounting hole 1011 on the right rear suspension bracket 101b, and a plurality of weight-reducing grooves 1013 are also provided on the right rear suspension bracket 101 b. It should be noted that, compared with the left rear suspension 1a, the right rear suspension 1b of the present embodiment has a difference in structure of the suspension bracket, which is mainly to meet the installation matching requirements of different portions of the driving motor 4, and when the portions of the driving motor 4 connected to the left rear suspension 1a and the right rear suspension 1b respectively have the same installation matching requirements, the suspension brackets of the left rear suspension 1a and the right rear suspension 1b may have the same structure.

The structure of the suspension bushing installed in the right rear suspension 1b is the same as that of the suspension bushing in the left rear suspension 1a described above, and will not be described herein again. The specific use of the motor suspension structure of the present embodiment can be referred to the description of the second embodiment below.

Example two

The present embodiment relates to a motor suspension system provided on a subframe for mounting a drive motor 4 to the subframe.

Specifically, still referring to fig. 1, the motor suspension system includes a front suspension 2 and a left rear suspension 1a and a right rear suspension 1b, and the left rear suspension 1a and the right rear suspension 1b adopt the corresponding motor suspension structure in the first embodiment. As for the front suspension 2, the structure of the front suspension 2 is as shown in fig. 8 and 9, and it specifically includes a front suspension outer tube 201, and a front suspension inner core 203 connected inside the front suspension outer tube 201 by a front suspension colloid 202.

Wherein, the outer tube turn-ups 2011 that turns up the setting is moulded to the one end at front suspension outer tube 201, and front suspension colloid 202 also has the colloid turn-ups 2021 that covers on outer tube turn-ups 2011, and at the one end that has outer tube turn-ups 2011, the tip of front suspension inner core 203 also stretches out outside front suspension outer tube 201. In addition, as a preferred embodiment, a plurality of protruding structures arranged at intervals are also provided on the surface of the colloid turned-up edge 2021 in this embodiment.

The front suspension colloid 202 is fixedly connected with the front suspension outer tube 201 and the front suspension inner core 203 in a vulcanization mode. It should be noted that the front suspension connecting holes 2031 on the front suspension inner core 203 are also two arranged side by side in this embodiment, the two front suspension connecting holes 2031 axially penetrate through the front suspension inner core 203, and by providing the two front suspension connecting holes 2031, the connected driving motor 4 can be effectively prevented from being twisted when in use, so as to facilitate the improvement of the stability of the installation of the driving motor 4.

In this embodiment, with continued reference to fig. 1, the limiting flanges 1021 in the left rear suspension 1a and the right rear suspension 1b are also arranged oppositely, and the subframe connection holes 1041 on the two rear suspensions are arranged along the subframe, that is, the width direction (Y direction) of the entire vehicle, while the front suspension 2 is arranged along the length direction of the entire vehicle. Meanwhile, when the suspension is installed, the front suspension 2 is directly pressed on the auxiliary frame in an interference fit mode, the outer pipe flanging 2011 on the front suspension is abutted to the auxiliary frame metal plate 3, and the left rear suspension 1a and the right rear suspension 1b are respectively connected to the auxiliary frame metal plate 3 through the shaft sleeve inner core 104.

After installation, the front portion of the driving motor 4 is connected to the front suspension core 203 and is connected to the end of the front suspension core 203 from which it extends. Two sides of the rear part of the driving motor 4 are respectively connected with the left rear suspension bracket 101a and the right rear suspension bracket 101b, and the sub-frame metal plate 3 is also respectively connected with two convex ends of the shaft sleeve inner core 104.

At this time, as shown in fig. 10 and 11, in terms of overall arrangement, the present embodiment also makes the distance a between the left rear suspension 1a and the left subframe metal plate 3 thereof greater than the distance c between the right rear suspension 1b and the left subframe metal plate 3 thereof, and makes the distance b between the left rear suspension 1a and the right subframe metal plate 3 thereof smaller than the distance d between the right rear suspension 1b and the right subframe metal plate 3 thereof. Wherein, above distance is the distance between sub vehicle frame panel beating 3 and the suspension support terminal surface, and through setting more than adopting, can guarantee when driving motor 4 moves extreme position to the right to and when driving motor 4 moves extreme position to the left, each suspension support can not all take place to collide with sub vehicle frame panel beating 3, and avoids appearing the collision abnormal sound.

When the motor suspension system of this embodiment is used, through being three point arrangement's preceding suspension 2, left rear suspension 1a and right rear suspension 1b, can realize driving motor 4's reliable installation to through at the driving in-process, utilize the damping cushioning effect of each suspension in front, back, also can realize the effective decay to vibration excitation, reduce the transmission of vibration to the cockpit, and can improve the NVH performance of whole car.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (10)

1. The utility model provides a motor suspension structure, includes the suspension support to and the interference pressure equipment is in suspension axle sleeve in the suspension support, its characterized in that: the suspension bracket is provided with a motor connecting part for connecting a driving motor (4), the suspension shaft sleeve is provided with a shaft sleeve outer pipe (102) and a shaft sleeve inner core (104) connected in the shaft sleeve outer pipe (102) through a shaft sleeve colloid (103); the auxiliary frame connecting part used for being connected with an auxiliary frame is arranged on the shaft sleeve inner core (104), two ends of the shaft sleeve inner core (104) extend out of the suspension support respectively, an outward-turning limiting flanging (1021) is formed at one end of the shaft sleeve outer tube (102), and the limiting flanging (1021) abuts against the suspension support.

2. The motor suspension structure according to claim 1, wherein: the motor connecting part comprises a plurality of motor connecting holes (1012) arranged on the suspension bracket, and a weight reduction groove (1013) is arranged on the suspension bracket.

3. The motor suspension structure according to claim 1, wherein: the shaft sleeve inner core (104) is provided with a core part (1040) located in the middle and radial limiting blocks (1043) located on two opposite sides of the core part (1040), the shaft sleeve colloid (103) is provided with main ribs (1033) respectively arranged on the other two opposite sides of the core part (1040) and radial limiting rubber blocks (1034) respectively arranged opposite to the radial limiting blocks (1043), the shaft sleeve inner core (104) is connected with the shaft sleeve outer tube (102) through the main ribs (1033) on two sides, and each radial limiting block (1043) and the radial limiting rubber block (1034) opposite to the radial limiting block are arranged at intervals.

4. The motor suspension structure according to claim 3, wherein: the main ribs (1033) on each side are two arranged in a forked shape, and a plurality of noise reduction protrusions (1035) are formed on the end face, facing the radial limiting block (1043), of each radial limiting rubber block (1034).

5. The motor suspension structure according to claim 3, wherein: the auxiliary frame connecting part is an auxiliary frame connecting hole (1041) arranged on the core part (1040).

6. The motor suspension structure according to claim 5, wherein: and lightening holes (1042) which are arranged in parallel to the auxiliary frame connecting holes (1041) are respectively arranged at the radial limiting blocks (1043) at two sides, and parts of the lightening holes (1042) at each side are positioned on the core part (1040).

7. The motor suspension structure according to any one of claims 1 to 6, wherein: and a limiting colloid (1031) covering the limiting flanging (1021) is formed on the shaft sleeve colloid (103).

8. The motor suspension structure according to claim 7, wherein: damping bulges (1032) are formed on the surface of the limiting colloid (1031), and the damping bulges (1032) are distributed on the surface of the limiting colloid (1031) at intervals.

9. The utility model provides a motor suspension system, sets up on sub vehicle frame its characterized in that: the motor suspension system comprises a front suspension (2) and a left rear suspension (1a) and a right rear suspension (1b), and the left rear suspension (1a) and/or the right rear suspension (1b) adopt the motor suspension structure of any one of claims 1 to 8.

10. The motor suspension system of claim 9, wherein: the left rear suspension (1a) and the right rear suspension (1b) both adopt the motor suspension structure, and the limiting flanging (1021) in the left rear suspension (1a) and the right rear suspension (1b) are arranged oppositely.

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