CN212708904U - A suspension vibration isolator assembly and vehicle for driving motor - Google Patents
A suspension vibration isolator assembly and vehicle for driving motor Download PDFInfo
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- CN212708904U CN212708904U CN202021349351.0U CN202021349351U CN212708904U CN 212708904 U CN212708904 U CN 212708904U CN 202021349351 U CN202021349351 U CN 202021349351U CN 212708904 U CN212708904 U CN 212708904U
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Abstract
The utility model provides a suspension vibration isolator assembly and vehicle for driving motor belongs to the vehicle field. The suspension vibration isolator assembly comprises an upper rubber body, a second rubber body and a third rubber body, wherein the upper rubber body is in a boss shape and comprises a large end and a small end positioned at the bottom of the large end, and a first through hole is formed in the middle of the upper rubber body; the lower rubber body is abutted against the bottom of the lower rubber body and is provided with a second through hole coaxially aligned with the first through hole, and the outer side of the small end of the upper rubber body is installed at the installation hole of the frame side cross beam; and the limiting sleeve penetrates through the first through hole and the second through hole, and a fastener is arranged in the limiting sleeve in a penetrating manner so as to fix the suspension vibration isolating pad assembly at the power side bracket. The utility model also provides a vehicle of including above-mentioned suspension vibration isolator assembly. The utility model discloses a suspension vibration isolator assembly and vehicle can effectively promote its ascending rigidity of X, avoid the rubber body fracture.
Description
Technical Field
The utility model relates to a vehicle field especially relates to a suspension vibration isolator assembly and vehicle for driving motor.
Background
With the deep promotion of the national energy-saving and emission-reducing policy, the research and development of new energy automobiles are gradually increased, and the motor driving system is widely applied due to the mature technology and the low product price. Compared with the traditional fuel power, the driving motor has no combustion excitation, and the vibration quantity is smaller, so the requirement on the suspension vibration isolation performance of the motor is relatively lower. However, since the output torque of the motor is sharply increased to the maximum when the motor is started, the suspension vibration isolation pad is required to have good transverse limiting capacity and rigidity when the motor is frequently started and stopped. Traditional motorcycle type suspension vibration isolator is for promoting the vibration isolation performance, and the transverse rigidity is generally on the low side, leads to using product function decline on the driving motor suspension, influences suspension system reliability.
The suspension vibration isolation pad of the driving motor is usually arranged between the frame and the driving motor, and plays roles of supporting, limiting and isolating the driving motor. Fig. 1 is a schematic view of a conventional suspension vibration isolation pad assembly in a finished vehicle assembly state, as shown in fig. 1, a suspension point of a driving motor 1 is at the bottom of the suspension point, a suspension vibration isolation pad assembly 3 is connected with the driving motor 1 through a power side bracket 2, and a lower plane of the suspension vibration isolation pad assembly 3 is fixed on a frame side cross beam 4 to play roles of supporting, limiting and isolating the driving motor 1.
As shown in fig. 2, the conventional suspended vibration isolator assembly 3 includes a metal upper frame 6, a rubber body 7, a metal lower frame 8, a metal spacer 10 and a standard component. The metal upper framework 6, the metal lower framework 8 and the rubber body 7 are vulcanized and molded. The metal upper framework 6 is welded with a positioning pin 5 and an upper framework fine-tooth bolt 9, which respectively play roles in positioning and fastening. Two lower framework fixing holes 11 (see fig. 3) are added on the metal lower framework 8 and are used for connecting the frame side cross beam 4. The metal partition 10 is located in the middle of the rubber body 7, mainly to increase the vertical stiffness of the rubber.
The existing suspension vibration isolator assembly has the following problems:
1) the existing suspension vibration isolation pad assembly 3 is subjected to shear deformation under the action of load in the X direction (the longitudinal direction of a vehicle), and the relative displacement between the metal upper framework 6 and the metal lower framework 8 is large, so that the rigidity of the existing drive motor suspension vibration isolation pad assembly 3 in the X direction is small.
2) The driving motor 1 reaches the maximum torque instantly when starting and stopping, and generates large displacement and load in the X direction. The rigidity of the existing suspension vibration isolating pad assembly 3 in the X direction is small, the displacement of the driving motor 1 in the X direction cannot be effectively limited, and the too large displacement of the driving motor 1 in the X direction can cause too small or interference of gaps between motor accessories and peripheral parts, so that the driving safety and the product reliability are influenced.
3) When the deformation of the existing suspension vibration isolating pad assembly 3 in the X direction is too large, the stress of the bonding surface of the metal upper framework 6 and the rubber body 7 is increased and may exceed the bonding strength of rubber and a metal surface, so that the existing drive motor suspension vibration isolating pad assembly 3 is torn. The driving safety and NVH performance are influenced after the conventional drive motor suspension vibration isolation pad assembly 3 fails.
In summary, the structural characteristics of the conventional suspended vibration isolator assembly 3 result in a low stiffness in the X direction, which leads to the above technical problems.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a suspension vibration isolator assembly for driving motor can effectively promote the ascending rigidity of its X.
The utility model discloses a another aim is avoided the rubber body fracture.
An object of the second aspect of the present invention is to provide a vehicle capable of effectively improving the upward rigidity of a suspension vibration isolating pad assembly X.
Particularly, the utility model provides a suspension vibration isolator assembly for driving motor, driving motor's bottom is equipped with the power collateral branch frame that is used for supporting it, the suspension vibration isolator assembly includes:
the upper rubber body is in a boss shape and comprises a large end and a small end positioned at the bottom of the large end, and a first through hole is formed in the middle of the upper rubber body;
the lower rubber body is abutted against the bottom of the lower rubber body and is provided with a second through hole coaxially aligned with the first through hole, and the outer side of the small end of the upper rubber body is installed at the installation hole of the frame side cross beam;
and the limiting sleeve penetrates through the first through hole and the second through hole, and a fastener is arranged in the limiting sleeve in a penetrating manner so as to fix the suspension vibration isolating pad assembly at the power side bracket.
Optionally, the suspended vibration isolator assembly for a drive motor further comprises:
two metal backing plates, set up respectively in the top surface department of going up the rubber body with the bottom surface department of lower rubber body, and each the metal backing plate all be equipped with the coaxial third through-hole that aligns of first through-hole is used for wearing to establish the fastener.
Optionally, the total length of the upper rubber body and the lower rubber body in an uncompressed state in the axial direction of the first through hole is greater than the length of the stop sleeve in the axial direction of the stop sleeve, and the difference is a first preset value, so that the upper rubber body and the lower rubber body in a compressed state after the fastener is tightened have preset rigidity.
Optionally, the diameters of the first through hole and the second through hole are the same and are both larger than the outer diameter of the limiting sleeve, and the difference is a second preset value.
Optionally, the upper rubber body is in a circular boss shape, and the lower rubber body is in a cylindrical shape.
Optionally, the outer diameter of the small end is smaller than the mounting hole of the frame side cross beam, and the difference is a third preset value.
Optionally, the fastener is a set of hex flange face bolts and hex flange face nuts.
Particularly, the utility model also provides a vehicle, include driving motor, be located the bottom of motor just is used for supporting power side support, frame side crossbeam and the arbitrary one of the above-mentioned a suspension vibration isolator assembly for driving motor.
The utility model discloses set up and run through in last rubber body and the inside limit sleeve pipe of lower rubber body, when suspension vibration isolator assembly received X direction load, the inner wall of rubber body and lower rubber body was gone up in the extrusion of limit sleeve pipe outer wall, because rubber bearing area is big, rigidity increase in deformation process has guaranteed the big rigidity characteristic of suspension vibration isolator assembly in the X direction.
Furthermore, when the driving motor starts and stops, the load generated by torque passes through the radial direction of the limiting sleeve, the outer walls of the upper rubber body and the lower rubber body are limited by the cross beam on the side of the frame and cannot move, and when the upper rubber body and the lower rubber body reach the compression limit, the driving motor is limited in the X direction.
Furthermore, the combination form of the suspension vibration isolation pad assembly enables the rubber body to be connected with the metal base plate in an assembling mode, a product vulcanization process is cancelled, product damage caused by bonding failure of metal and rubber is avoided, and system reliability is improved.
Further, the rubber body can be uniformly stressed by adding the metal base plate.
Further, the upper rubber body, the lower rubber body and the metal base plate are connected through the hexagonal flange face bolt and the hexagonal flange face nut, when the X-direction load is received, the rubber radially displaces, the rubber slides between the rubber and the metal base plate, the rubber and metal strength are not affected, and the stability and the reliability of the product are guaranteed.
Further, the upper rubber body and the lower rubber body are connected with the metal base plate through fasteners, and the risk of cracking of the rubber bodies is avoided.
The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the present invention will be described in detail hereinafter, by way of illustration and not by way of limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:
FIG. 1 is a schematic view of a conventional suspension isolator assembly in a vehicle assembled state;
FIG. 2 is a schematic structural view of a conventional suspended vibration isolator assembly;
FIG. 3 is a top view of a prior art suspended isolator pad assembly;
fig. 4 is a cross-sectional view of a suspended vibration isolator assembly for a drive motor according to an embodiment of the present invention;
fig. 5 is a schematic structural view of a suspension vibration isolator assembly for a driving motor according to an embodiment of the present invention in a vehicle assembled state;
fig. 6 is a cross-sectional view of a suspension isolator mount assembly for a drive motor in a finished vehicle assembled state according to an embodiment of the present invention.
Detailed Description
Fig. 4 is a cross-sectional view of a suspension isolator mount assembly 17 for a drive motor 1 according to one embodiment of the present invention. Fig. 5 is a schematic structural diagram of a suspension vibration isolator assembly 17 for a driving motor 1 according to an embodiment of the present invention in a vehicle assembling state. The X direction in fig. 5 is the longitudinal direction of the vehicle, and Y is the vertical direction. Fig. 6 is a cross-sectional view of a suspension isolator mount assembly 17 for a drive motor 1 according to an embodiment of the present invention in a vehicle assembled state. As shown in fig. 5, the bottom of the driving motor 1 is provided with a power side bracket 2 for supporting the driving motor 1, as shown in fig. 4, in one embodiment, the suspension vibration isolation pad assembly 17 for the driving motor 1 of the present invention comprises an upper rubber body 13, a lower rubber body 14 and a limit sleeve 15. The upper rubber body 13 is in a boss shape and comprises a large end 131 and a small end 132 positioned at the bottom of the large end, and a first through hole 101 is formed in the middle of the upper rubber body 13. The lower rubber body 14 abuts on the bottom of the lower rubber body 14 and is provided with a second through hole 102 coaxially aligned with the first through hole 101, and the outer side of the small end 132 of the upper rubber body 13 is mounted at the mounting hole of the frame side cross member 4. Alternatively, the upper rubber body 13 is in the shape of a circular boss, and the lower rubber body 14 is in the shape of a cylinder. The limiting sleeve 15 is disposed through the first through hole 101 and the second through hole 102, and a fastener 20 is disposed inside the limiting sleeve 15 to fix the suspension vibration isolator assembly 17 to the power side bracket 2. In one embodiment, the fasteners 20 are sets of hex flange bolts 16 and hex flange nuts 18.
The limiting sleeve 15 penetrating through the upper rubber body 13 and the lower rubber body 14 is arranged in the embodiment, when the suspension vibration isolation pad assembly 17 is loaded in the X direction, the outer wall of the limiting sleeve 15 extrudes the inner walls of the upper rubber body 13 and the lower rubber body 14, and due to the fact that the rubber bearing area is large, the rigidity is increased in the deformation process, and the characteristic of large rigidity of the suspension vibration isolation pad assembly 17 in the X direction is guaranteed. It should be noted that the X direction is only an example, and since the position limiting sleeve 15 is a tubular member, the rigidity of the suspension vibration isolating pad assembly 17 of the present embodiment in all horizontal directions, such as the transverse direction of the vehicle, is improved.
Further, when the driving motor 1 starts and stops, the load generated by the torque passes through the radial direction of the limiting sleeve 15, the outer walls of the upper rubber body 13 and the lower rubber body 14 are limited by the frame side cross beam 4 and cannot move, and when the upper rubber body 13 and the lower rubber body 14 reach the compression limit, the driving motor 1 is limited in the X direction.
When the suspended vibration isolator assembly 17 is subjected to a load in the Z + direction, the lower rubber body 14 is compressed and deformed; when the suspension vibration isolation pad assembly 17 is subjected to Z-direction load, the upper rubber body 13 is compressed, and the upper rubber body 13 and the lower rubber body 14 are always subjected to pressure under various working conditions (the pressure resistance of the rubber is higher than the tensile resistance), so that the good service performance of the suspension vibration isolation pad assembly 17 is ensured.
That is to say, this embodiment realizes driving motor 1 whole car X, Z to spacing through spacing sleeve 15, frame side crossbeam 4, avoids driving motor 1 and annex reliability that influences that the displacement is too big under the comprehensive operating mode.
Further, the combination form of the suspension vibration isolation pad assembly 17 enables the rubber body to be connected with the metal base plate 12 in an assembling mode, a product vulcanization process is omitted, product damage caused by bonding failure of metal and rubber is avoided, and system reliability is improved.
In another embodiment, the suspension vibration isolator assembly 17 further comprises two metal pad plates 12 respectively disposed at the top surface of the upper rubber body 13 and the bottom surface of the lower rubber body 14, and each metal pad plate 12 is provided with a third through hole 103 coaxially aligned with the first through hole 101 for passing through the fastening member 20. The embodiment ensures that the rubber body is uniformly stressed by adding the metal backing plate 12.
Further, the upper rubber body 13 and the lower rubber body 14 are connected with the metal base plate 12 through the hexagonal flange face bolt 16 and the hexagonal flange face nut 18, when the X-direction load is applied, the rubber is displaced in the radial direction and slides with the metal base plate 12, the rubber and metal strength is not affected, and the stability and reliability of the product are guaranteed.
Further, the upper rubber body 13 and the lower rubber body 14 are connected with the metal backing plate 12 by the fastener 20 without the risk of cracking of the rubber bodies.
In some embodiments of the present invention, the total length of the upper rubber body 13 and the lower rubber body 14 in the uncompressed state along the axial direction of the first through hole 101 is greater than the length of the limiting sleeve 15 along the axial direction thereof, and the difference is the first preset value, so that the upper rubber body 13 and the lower rubber body 14 in the compressed state after the fastening member 20 is screwed up have the preset rigidity.
That is, by leaving the distance of the first preset value at the beginning of the design, the upper rubber body 13 and the lower rubber body 14 after the fastening member 20 is tightened are compressed in the Z direction, and the stiffness of the rubber bodies can be conveniently controlled by controlling the amount of the first preset value, i.e., the amount of the compressed rubber bodies, so as to meet different stiffness requirements.
In one embodiment, the diameters of the first through hole 101 and the second through hole 102 are the same and are both larger than the outer diameter of the position limiting sleeve 15, and the difference is a second preset value, optionally, the second preset value is 0.5 mm. This arrangement may facilitate insertion of the stop collar 15.
In another embodiment, the outer diameter of the small end 132 is smaller than the mounting hole of the frame side rail 4 by a third preset value, optionally, the third preset value is 0.5 mm. Likewise, mounting of the suspension isolator mount assembly 17 to the frame side rail 4 can be facilitated by providing a gap between the small end 132 and the mounting hole.
The utility model also provides a vehicle, the power side support 2 that is used for the support motor including driving motor 1, the bottom that is located the motor and is used for the support motor, frame side crossbeam 4 and the suspension vibration isolator assembly 17 that is used for driving motor 1 of above-mentioned arbitrary item. The connection of the components is the same as the previous embodiment, and the same technical effects are achieved, which is not described herein again.
Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been shown and described in detail herein, many other variations and modifications can be made, consistent with the principles of the invention, which are directly determined or derived from the disclosure herein, without departing from the spirit and scope of the invention. Accordingly, the scope of the present invention should be understood and interpreted to cover all such other variations or modifications.
Claims (8)
1. A suspension vibration isolator assembly for a drive motor, the bottom of the drive motor being provided with a powered side bracket for supporting the drive motor, the suspension vibration isolator assembly comprising:
the upper rubber body is in a boss shape and comprises a large end and a small end positioned at the bottom of the large end, and a first through hole is formed in the middle of the upper rubber body;
the lower rubber body is abutted against the bottom of the lower rubber body and is provided with a second through hole coaxially aligned with the first through hole, and the outer side of the small end of the upper rubber body is installed at the installation hole of the frame side cross beam;
and the limiting sleeve penetrates through the first through hole and the second through hole, and a fastener is arranged in the limiting sleeve in a penetrating manner so as to fix the suspension vibration isolating pad assembly at the power side bracket.
2. The suspended vibration isolator assembly for a drive motor of claim 1, further comprising:
two metal backing plates, set up respectively in the top surface department of going up the rubber body with the bottom surface department of lower rubber body, and each the metal backing plate all be equipped with the coaxial third through-hole that aligns of first through-hole is used for wearing to establish the fastener.
3. The suspended vibration isolator assembly for a drive motor according to claim 1 or 2,
the total length of the upper rubber body and the lower rubber body in an uncompressed state in the axial direction of the first through hole is larger than the length of the limiting sleeve in the axial direction of the limiting sleeve, and the difference value is a first preset value, so that the upper rubber body and the lower rubber body in a compressed state after the fastener is screwed have preset rigidity.
4. The suspended vibration isolator assembly for a drive motor according to claim 1 or 2,
the diameters of the first through hole and the second through hole are the same and are both larger than the outer diameter of the limiting sleeve, and the difference value is a second preset value.
5. The suspended vibration isolator assembly for a drive motor according to claim 1 or 2,
the upper rubber body is in a circular boss shape, and the lower rubber body is in a cylindrical shape.
6. The suspended vibration isolator assembly for a drive motor of claim 5,
the outer diameter of the small end is smaller than the mounting hole of the frame side cross beam, and the difference value is a third preset value.
7. The suspended vibration isolator assembly for a drive motor according to claim 1 or 2,
the fasteners are a set of hexagonal flange face bolts and hexagonal flange face nuts.
8. A vehicle comprising a drive motor, a power side bracket located at the bottom of the motor for supporting the motor, a frame side cross member, and the suspension isolator assembly for a drive motor of any one of claims 1-6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021349351.0U CN212708904U (en) | 2020-07-10 | 2020-07-10 | A suspension vibration isolator assembly and vehicle for driving motor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021349351.0U CN212708904U (en) | 2020-07-10 | 2020-07-10 | A suspension vibration isolator assembly and vehicle for driving motor |
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| CN212708904U true CN212708904U (en) | 2021-03-16 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113119710A (en) * | 2021-05-31 | 2021-07-16 | 东风商用车有限公司 | Engine suspension cushion assembly of medium and heavy commercial vehicle |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113119710A (en) * | 2021-05-31 | 2021-07-16 | 东风商用车有限公司 | Engine suspension cushion assembly of medium and heavy commercial vehicle |
| CN113119710B (en) * | 2021-05-31 | 2022-11-11 | 东风商用车有限公司 | Engine suspension cushion assembly of medium and heavy commercial vehicle |
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Effective date of registration: 20211207 Address after: Room 612, building 1, 1760 Jiangling Road, Binjiang District, Hangzhou City, Zhejiang Province Patentee after: ZHEJIANG GEELY NEW ENERGY COMMERCIAL VEHICLE GROUP Co.,Ltd. Patentee after: GEELY SICHUAN COMMERCIAL VEHICLE Co.,Ltd. Patentee after: Zhejiang remote commercial vehicle R & D Co.,Ltd. Patentee after: ZHEJIANG GEELY HOLDING GROUP Co.,Ltd. Address before: Room 612, building 1, 1760 Jiangling Road, Binjiang District, Hangzhou City, Zhejiang Province Patentee before: ZHEJIANG GEELY NEW ENERGY COMMERCIAL VEHICLE GROUP Co.,Ltd. Patentee before: GEELY SICHUAN COMMERCIAL VEHICLE Co.,Ltd. Patentee before: ZHEJIANG GEELY HOLDING GROUP Co.,Ltd. |