CN111890903B - Suspension system and installation method of rear-drive electric vehicle - Google Patents
Suspension system and installation method of rear-drive electric vehicle Download PDFInfo
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- CN111890903B CN111890903B CN202010730221.XA CN202010730221A CN111890903B CN 111890903 B CN111890903 B CN 111890903B CN 202010730221 A CN202010730221 A CN 202010730221A CN 111890903 B CN111890903 B CN 111890903B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K1/00—Arrangement or mounting of electrical propulsion units
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
- B60K17/06—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of change-speed gearing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
- B62D21/11—Understructures, i.e. chassis frame on which a vehicle body may be mounted with resilient means for suspension, e.g. of wheels or engine; sub-frames for mounting engine or suspensions
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/08—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with rubber springs ; with springs made of rubber and metal
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- Aviation & Aerospace Engineering (AREA)
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Abstract
A suspension system of a rear-drive electric automobile comprises a reduction gearbox and a driving motor, wherein the left side of the front end of the reduction gearbox is connected with a left suspension, the joint of the left suspension and the reduction gearbox is arranged opposite to the joint of the driving motor and the reduction gearbox, the right end of the driving motor is connected with a right suspension, and the part, close to the joint of the reduction gearbox and a right driving shaft assembly, on the rear end of the reduction gearbox is connected with the rear suspension; the left, right and rear shock absorption modules are respectively connected with the frame through the corresponding left connecting unit, right connecting unit and rear connecting unit. The design has the advantages of low cost, strong vibration reduction effect, small assembly difficulty and good assembly manufacturability.
Description
Technical Field
The invention relates to an automobile suspension and an assembly technology thereof, belongs to the field of pure electric vehicles and parts of pure electric vehicles, and particularly relates to a suspension system of a rear-drive electric vehicle and an installation method thereof.
Background
According to the requirement of a driving mode, the arrangement positions of the power assembly are usually arranged in a front cabin and a seat cabin, and the two arrangement modes respectively have a front driving mode and a rear driving mode. The suspension arrangement space, the structural requirement and the installation technical scheme requirement for the power assembly are not high when the front drive is arranged, and the implementation is easy, but when the rear drive is arranged, namely the power assembly is arranged at the rear shaft part of the vehicle, particularly a pure electric van type transport vehicle, the power assembly is completely arranged below the floor, the installation space is limited, and when mushroom-shaped cushions are adopted, the great difficulty is caused to the combination of the power assembly, and in addition, the cost is overhigh when the suspension adopts cast parts.
The information disclosed in this background section is only for enhancement of understanding of the general background of the patent application and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
Disclosure of Invention
The invention aims to overcome the defects and problems of high cost and high assembly difficulty in the prior art, and provides a rear-drive electric vehicle suspension system and an installation method thereof, wherein the suspension system is low in cost and low in assembly difficulty.
In order to achieve the above purpose, the technical solution of the invention is as follows: a suspension system of a rear-mounted rear-drive electric automobile comprises a reduction gearbox and a drive motor, wherein the right side of the front end of the reduction gearbox is connected with the left end of the drive motor, and two sides of the rear end of the reduction gearbox are respectively connected with the inner ends of a left drive shaft assembly and a right drive shaft assembly;
the left side of the front end of the reduction gearbox is connected with the left suspension, the joint of the left suspension and the reduction gearbox is arranged opposite to the joint of the driving motor and the reduction gearbox, the right end of the driving motor is connected with the right suspension, and the part of the rear end of the reduction gearbox, which is close to the joint of the reduction gearbox and the right driving shaft assembly, is connected with the rear suspension;
the left shock absorption module, the right shock absorption module and the rear shock absorption module are correspondingly arranged in the top ends of the left suspension, the right suspension and the rear suspension respectively and are connected with the frame through the corresponding left connecting unit, the corresponding right connecting unit and the corresponding rear connecting unit respectively.
The left damping module, the right damping module and the rear damping module are consistent in structure and comprise a sleeve, rubber, an inner shell and an outer shell which are vulcanized into a whole; the outside parcel of sheathed tube has rubber, and the outside parcel of this rubber has the inner shell, and the outside parcel of this inner shell has the shell, and has seted up upper shock attenuation cavity and lower shock attenuation cavity in rubber.
The central axes of the left suspension inner sleeve and the right suspension inner sleeve are parallel to each other, the central axis of the left suspension inner sleeve is perpendicular to the central axis of the rear suspension inner sleeve, and the central axis of the rear suspension inner sleeve is parallel to the central axis of the right driving shaft assembly;
the position connected with the left connecting unit on the frame is parallel to the central axis of the left suspension inner sleeve, the position connected with the right connecting unit on the frame is parallel to the central axis of the right suspension inner sleeve, and the position connected with the rear connecting unit on the frame is parallel to the central axis of the rear suspension inner sleeve.
The left suspension comprises a left damping module, a left vertical bottom plate and a left transverse bottom plate, the top of the left vertical bottom plate is connected with the outer end of the left transverse bottom plate, a left box connecting hole connected with the reduction gearbox is formed in the plate surface of the left vertical bottom plate, the bottom surface of the left transverse bottom plate is in lap joint with the top of the reduction gearbox, left outer reinforcing ribs and left inner reinforcing ribs are respectively arranged on the plate surface of the left vertical bottom plate along the inner side and the outer side of the plate surface, a left inner arc-shaped edge is formed on the inner side edge of the left vertical bottom plate, and the left inner reinforcing ribs are arranged along the left inner arc-shaped edge;
the bottom of the left damping module is connected with the surface of the left vertical bottom plate through a left support plate and a left support plate, the side of the left damping module is connected with the top surface of the left transverse bottom plate through a left support plate and a left support plate, one end of each of the left support plate and the left support plate is close to the left support plate, and the other end of each of the left support plate and the left support plate is close to the left inner reinforcing rib.
The left side linkage unit is left linking bridge, and it includes left oblique roof and the first left otic placode, the two left otic placodes that are connected rather than both sides, the left link hole that is connected with left shock attenuation module is all seted up to the bottom of first left otic placode, two left otic placodes, and left clamp mouth in order to be connected with left L template has all been seted up at the top of first left otic placode, two left otic placodes, all sets up the even car hole in a left side that is connected with the frame on two faces of left L template, and the position that lies in left oblique roof both sides on the L template in a left side respectively is connected with the side of first left otic placode or two left otic placodes through a oblique reinforcing plate in a left side.
The rear suspension comprises a rear damping module, a rear long bottom plate, a rear short bottom plate and a rear cover shell, wherein the bottom of the side wall of the rear damping module is connected with the top of the rear long bottom plate, the middle part of the rear long bottom plate is connected with the inner end of the rear short bottom plate, the plate surface of the rear short bottom plate is connected with the side part of the rear cover shell through two rear reinforced angle plates, the bottom of the rear cover shell is connected with the plate surface of the rear long bottom plate, a rear cavity is clamped between the rear cover shell and the rear long bottom plate, and the top of the rear cover shell is connected with the side wall of the rear damping module;
the surface of the rear long bottom plate, which is positioned below the rear housing, is connected with the rear outer reinforcing plate, and the side edge of the rear long bottom plate, which is opposite to the rear outer reinforcing plate, is a rear concave arc edge; and rear box connecting holes connected with the reduction box are formed in the plate surface between the rear concave arc edge and the rear outer reinforcing plate and the plate surface between the two rear reinforcing angle plates.
The rear connecting unit is a rear connecting support and comprises a rear inclined top plate, a rear lug plate and a rear two lug plates, the rear lug plate and the rear two lug plates are connected with the two sides of the rear inclined top plate, rear connecting block holes connected with the rear shock absorption module are formed in the bottom ends of the rear lug plate and the rear two lug plates, and the top ends of the rear lug plate, the rear two lug plates and the rear inclined top plate are connected with the side edge of a rear flat top plate;
the top of back otic placode, two back otic placodes has all been seted up the back and has been pressed from both sides the mouth in order to be connected with back L template, has all seted up the back hole of even car that is connected with the frame on two faces of back L template, and the position that lies in back flush head plate both sides on the back L template respectively is connected with the side of one back otic placode or two back otic placodes through a back oblique reinforcing plate.
The right suspension comprises a right damping module and a right arc bottom plate, the part of the right arc bottom plate, which is close to the top end of the right arc bottom plate, is vertically connected with the bottom of the side wall of the right damping module, a right outer arc reinforcing plate and a right inner arc reinforcing plate are respectively arranged on the plate surface of the right arc bottom plate along the two sides of the right arc bottom plate, and the parts of the plate surface of the right arc bottom plate, which are positioned on the two sides of the right damping module, are respectively connected with the right outer arc reinforcing plate and the right outer short reinforcing plate;
and the positions on the two sides of the right damping module on the surface of the right arc bottom plate are provided with right connecting holes connected with a driving motor.
The right connecting unit comprises a right connecting bracket and a right transition bracket;
the right transition support comprises a right top arc plate, a right outer arc plate and a right inner arc plate which are connected with two sides of the right top arc plate, the inner ends of the right outer arc plate and the right inner arc plate are respectively provided with a right connecting block hole connected with the right damping module, the middle part of the right outer arc plate is connected with the middle part of the right inner arc plate through a right middle reinforcing plate, a right outer reinforcing plate connected with the bottom surface of the right top arc plate is arranged between the outer ends of the right outer arc plate and the right inner arc plate, and the parts of the right top arc plate, which are positioned at two sides of the right outer reinforcing plate, are respectively provided with a right connecting support hole;
the right connecting support comprises a right connecting transverse plate, a right connecting vertical plate and a right middle angle plate, the outer side edge of the right connecting transverse plate is vertically connected with the bottom edge of the right connecting vertical plate, the middle part of the right connecting transverse plate is connected with the middle part of the right connecting vertical plate through the right middle angle plate, the two ends of the right connecting vertical plate are respectively connected with the two ends of the right connecting transverse plate through the right angle plate, the right connecting transverse plate is provided with a right connecting transition hole connected with the right connecting support hole on the position on the two sides of the right middle angle plate, and the right connecting vertical plate is provided with a right connecting vehicle hole connected with the vehicle frame on the position on the two sides of the right middle angle plate.
The mounting method of the suspension system of the rear-drive electric automobile comprises the following steps: welding the left connecting unit and the rear connecting unit with the frame respectively, and connecting the right connecting unit with the frame through bolts; then the left suspension and the rear suspension are separately arranged on the reduction gearbox by bolts, the right suspension is separately arranged on the driving motor by bolts, and the bolts are not tightened to obtain a power assembly after the separation; and then lifting the power assembly after the split charging so as to enable the left damping module in the left suspension to be in bolted connection with the left connecting unit, the right damping module in the right suspension to be in bolted connection with the right connecting unit, the rear damping module in the rear suspension to be in bolted connection with the rear connecting unit, and tightening the untightened bolts after the full connection, thus completing the installation.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention relates to a suspension system and an installation method of a rear-drive electric automobile, wherein three types of suspensions are arranged, namely a left suspension and a rear suspension which are connected on a reduction gearbox respectively, and a right suspension which is connected on a driving motor respectively, and the left suspension, the right suspension and the rear suspension are connected with a frame respectively through a corresponding left connecting unit, a corresponding right connecting unit and a corresponding rear connecting unit. Therefore, the invention has lower cost and lower assembly difficulty.
2. In the suspension system and the installation method of the rear-drive electric automobile, the structures of the left suspension, the right suspension and the rear suspension basically comprise the damping modules, the bottom plate, various supporting plates and reinforcing plates, the plates are mostly welded, the design not only can obtain various suspension structures meeting the structural requirements, but also can reduce the manufacturing cost (compared with casting), and meanwhile, a relatively wide connecting space can be obtained, so that the assembly efficiency is improved. Therefore, the invention not only has lower manufacturing cost, but also is easy to assemble.
3. According to the suspension system and the mounting method of the rear-drive electric automobile, the damping modules are arranged in the left suspension, the right suspension and the rear suspension and comprise the sleeve, the rubber, the inner shell and the outer shell which are vulcanized into a whole, the assembly surfaces of the damping modules are relatively level, compared with the mushroom-shaped cushion adopted in the prior art, the requirement on the mounting space is reduced, and convenience is brought to the combination of a power assembly. Therefore, the present invention is easy to assemble.
4. During assembly, the left connecting unit, the rear connecting unit and the right connecting unit are connected with the frame, the left suspension, the rear suspension and the right suspension are connected with the reduction gearbox or the driving motor to obtain a split power assembly, and finally the power assembly is lifted to enable the shock absorption modules in the suspensions to be in bolt connection with the corresponding connecting units, so that all assembly is completed. Therefore, the assembly manufacturability of the invention is better.
5. The invention relates to a suspension system of a rear-drive electric automobile and an installation method thereof, wherein a damping module is arranged in a left suspension, a right suspension and a rear suspension, a sleeve is arranged in each damping module, the sleeve is positioned at the central axis of the damping module, the central axis of the sleeve represents the central axis of the damping module, the central axis of the damping module is directly related to the damping effect of the damping module, and on the basis, the relative position relations, such as parallel, vertical and the like, are limited between the central axes of the suspensions and between different parts of the suspensions and an automobile frame, so that the damping effect of the suspensions is improved, and the suspensions have stronger damping effect on the automobile frame and a power assembly on the whole. Therefore, the vibration damping effect of the invention is stronger.
Drawings
Fig. 1 is a schematic structural view of the present invention.
FIG. 2 is a schematic structural diagram of the powertrain of FIG. 1.
Fig. 3 is a schematic structural view of the left suspension in fig. 1.
Fig. 4 is a schematic view of the structure of fig. 3 after deflection.
Figure 5 is a cross-sectional view of the left cushion module of figure 3.
Fig. 6 is a schematic structural view of the left connection unit in fig. 1.
Fig. 7 is a schematic structural view of the right suspension in fig. 1.
Fig. 8 is a side view of fig. 7.
Fig. 9 is a schematic structural view of the right transition bracket of fig. 1.
Fig. 10 is a schematic view of the structure of the right connecting bracket of fig. 1.
Fig. 11 is a schematic structural view of the rear suspension of fig. 1.
Fig. 12 is a cross-sectional view of the rear cover of fig. 10.
Fig. 13 is a schematic structural view of the rear connection unit of fig. 1.
Fig. 14 is a schematic view of the construction of the pointed bolt of the present invention.
Fig. 15 is a schematic view of the connection of the present invention to a vehicle body.
In the figure: the rear axle suspension comprises a power assembly 1, a reduction gearbox 11, a driving motor 12, a left driving shaft assembly 13, a right driving shaft assembly 14, a rear axle assembly 15, a left suspension 2, a left shock absorption module 20, a left vertical bottom plate 21, a left inner arc-shaped edge 211, a left transverse bottom plate 22, a left box connecting hole 23, a left outer reinforcing rib 24, a left inner reinforcing rib 25, a left support plate 26, a left second support plate 27, a left third support plate 28, a left connecting unit 3, a left ear plate 31, a left ear plate 32, a left inclined top plate 33, a left connecting block hole 34, a left clamping opening 35, a left L-shaped plate 36, a left connecting hole 361, a left inclined reinforcing plate 37, a right suspension 4, a right shock absorption module 40, a right arc bottom plate 41, a right connecting machine hole 411, a right outer arc reinforcing plate 42, a right inner arc reinforcing plate 43, a right outer short reinforcing plate 44, a right connecting unit 5, a right connecting support 51, a right connecting transverse plate 511, a right connecting vertical plate 512, a right connecting plate 513, a right corner plate 513, a right transition hole 516, a right connecting hole 516, The rear connection unit comprises a right transition bracket 52, a right top arc plate 521, a right outer arc plate 522, a right inner arc plate 523, a right connecting block hole 524, a right middle reinforcing plate 525, a right outer reinforcing plate 526, a right connecting support hole 527, a rear suspension 6, a rear shock absorption module 60, a sleeve 601, rubber 602, an inner shell 603, an outer shell 604, an upper shock absorption cavity 605, a lower shock absorption cavity 606, a rear long bottom plate 61, a rear concave arc edge 611, a rear short bottom plate 62, a rear housing 63, a rear cavity 631, a rear reinforcing corner plate 64, a rear outer reinforcing plate 65, a rear connecting box hole 66, a rear connection unit rear 7, a rear lug plate 71, a rear two lug plate 72, a rear inclined top plate 73, a rear connecting block hole 74, a rear flat top plate 75, a rear clamping opening 76, a rear L-shaped plate 77, a rear connecting vehicle hole 771, a rear inclined reinforcing plate 78, a vehicle frame 8, a pointed bolt 10, a nut 101, a screw section 102, a screw section 103 and a screw head 104.
Detailed Description
The present invention will be described in further detail with reference to the following description and embodiments in conjunction with the accompanying drawings.
Referring to fig. 1 to 15, a suspension system of a rear-drive electric vehicle comprises a reduction gearbox 11 and a drive motor 12, wherein the right side of the front end of the reduction gearbox 11 is connected with the left end of the drive motor 12, and two sides of the rear end of the reduction gearbox 11 are respectively connected with the inner ends of a left drive shaft assembly 13 and a right drive shaft assembly 14;
the left side of the front end of the reduction gearbox 11 is connected with the left suspension 2, the joint of the left suspension 2 and the reduction gearbox 11 is arranged opposite to the joint of the driving motor 12 and the reduction gearbox 11, the right end of the driving motor 12 is connected with the right suspension 4, and the part, close to the joint of the reduction gearbox 11 and the right driving shaft assembly 14, on the rear end of the reduction gearbox 11 is connected with the rear suspension 6;
the left suspension 2, the right suspension 4 and the rear suspension 6 are correspondingly provided with a left damping module 20, a right damping module 40 and a rear damping module 60 in the top ends respectively, and the left damping module 20, the right damping module 40 and the rear damping module 60 are connected with the frame 8 through a left connecting unit 3, a right connecting unit 5 and a rear connecting unit 7 respectively.
The left shock absorption module 20, the right shock absorption module 40 and the rear shock absorption module 60 have the same structure and comprise a sleeve 601, rubber 602, an inner shell 603 and an outer shell 604 which are vulcanized into a whole; the sleeve 601 is externally wrapped with rubber 602, the rubber 602 is externally wrapped with an inner shell 603, the inner shell 603 is externally wrapped with an outer shell 604, and an upper shock absorption cavity 605 and a lower shock absorption cavity 606 are formed in the rubber 602.
The central axes of the inner sleeves 601 of the left suspension 2 and the right suspension 4 are parallel to each other, the central axis of the inner sleeve 601 of the left suspension 2 is vertical to the central axis of the inner sleeve 601 of the rear suspension 6, and the central axis of the inner sleeve 601 of the rear suspension 6 is parallel to the central axis of the right driving shaft assembly 14;
the part of the frame 8 connected with the left connecting unit 3 is parallel to the central axis of the inner sleeve 601 of the left suspension 2, the part of the frame 8 connected with the right connecting unit 5 is parallel to the central axis of the inner sleeve 601 of the right suspension 4, and the part of the frame 8 connected with the rear connecting unit 7 is parallel to the central axis of the inner sleeve 601 of the rear suspension 6.
The left suspension 2 comprises a left damping module 20, a left vertical bottom plate 21 and a left transverse bottom plate 22, the top of the left vertical bottom plate 21 is connected with the outer end of the left transverse bottom plate 22, a left connecting box hole 23 connected with the reduction gearbox 11 is formed in the plate surface of the left vertical bottom plate 21, the bottom surface of the left transverse bottom plate 22 is in lap joint with the top of the reduction gearbox 11, left outer reinforcing ribs 24 and left inner reinforcing ribs 25 are respectively arranged on the plate surface of the left vertical bottom plate 21 along the inner and outer sides of the plate surface, a left inner arc-shaped edge 211 is formed on the inner side edge of the left vertical bottom plate 21, and the left inner reinforcing ribs 25 are arranged along the left inner arc-shaped edge 211;
the bottom of the left shock absorption module 20 is connected with the plate surface of the left vertical bottom plate 21 through a left support plate 26 and a left support plate 27, the side part of the left shock absorption module 20 is connected with the top surface of the left transverse bottom plate 22 through a left support plate 28, one ends of the left support plate 26 and the left support plate 27 are arranged close to the left support plate 28, and the other ends of the left support plate 26 and the left support plate 27 are arranged close to the left inner reinforcing rib 25.
Left side linkage unit 3 is left linking bridge, and it includes left oblique roof 33 and the first left otic placode 31, the second left otic placode 32 that are connected rather than both sides, left link hole 34 that is connected with left shock attenuation module 20 has all been seted up to the bottom of first left otic placode 31, the second left otic placode 32, and left clamp 35 has all been seted up at the top of first left otic placode 31, the second left otic placode 32 in order to be connected with left L template 36, has all seted up the left hole 361 of being linked to the car that is connected with frame 8 on two faces of left L template 36, and the position that lies in left oblique roof 33 both sides on the L template 36 of a left side respectively is connected with the side of first left otic placode 31 or second left otic placode 32 through a left oblique reinforcing plate 37.
The rear suspension 6 comprises a rear shock absorption module 60, a rear long bottom plate 61, a rear short bottom plate 62 and a rear cover shell 63, the bottom of the side wall of the rear shock absorption module 60 is connected with the top of the rear long bottom plate 61, the middle part of the rear long bottom plate 61 is connected with the inner end of the rear short bottom plate 62, the plate surface of the rear short bottom plate 62 is connected with the side part of the rear cover shell 63 through two rear reinforced corner plates 64, the bottom of the rear cover shell 63 is connected with the plate surface of the rear long bottom plate 61, a rear cavity 631 is formed between the rear cover shell 63 and the rear long bottom plate 61, and the top of the rear cover shell 63 is connected with the side wall of the rear shock absorption module 60;
the surface of the rear long bottom plate 61 below the rear cover 63 is connected with the rear outer reinforcing plate 65, and the side of the rear long bottom plate 61 opposite to the rear outer reinforcing plate 65 is a rear concave arc edge 611; the plate surface between the rear concave arc edge 611 and the rear outer reinforcing plate 65 and the plate surface between the two rear reinforcing angle plates 64 are provided with rear connecting box holes 66 connected with the reduction box 11.
The rear connecting unit 7 is a rear connecting bracket and comprises a rear inclined top plate 73, a rear ear plate 71 and a rear two ear plate 72 which are connected with two sides of the rear inclined top plate, rear connecting block holes 74 which are connected with the rear shock absorption module 60 are formed in the bottom ends of the rear ear plate 71 and the rear two ear plate 72, and the top ends of the rear ear plate 71, the rear two ear plate 72 and the rear inclined top plate 73 are connected with the side edge of a rear flat top plate 75;
the top of the back ear plate 71 and the back two ear plates 72 is provided with a back clamping opening 76 to be connected with a back L-shaped plate 77, two plate surfaces of the back L-shaped plate 77 are provided with back connecting holes 771 connected with the frame 8, and the parts of the back L-shaped plate 77 on two sides of the back flat top plate 75 are respectively connected with the side surface of the back ear plate 71 or the back two ear plates 72 through a back inclined reinforcing plate 78.
The right suspension 4 comprises a right damping module 40 and a right arc bottom plate 41, the part, close to the top end, of the right arc bottom plate 41 is vertically connected with the bottom of the side wall of the right damping module 40, a right outer arc reinforcing plate 42 and a right inner arc reinforcing plate 43 are respectively arranged on the surface of the right arc bottom plate 41 along two sides of the surface, and the parts, located on two sides of the right damping module 40, of the surface of the right arc bottom plate 41 are respectively connected with the right outer arc reinforcing plate 42 and a right outer short reinforcing plate 44;
the right arc bottom plate 41 is provided with right connecting holes 411 connected with the driving motor 12 at the positions on the two sides of the right damping module 40.
The right connecting unit 5 comprises a right connecting bracket 51 and a right transition bracket 52;
the right transition bracket 52 comprises a right top arc plate 521, a right outer arc plate 522 and a right inner arc plate 523, wherein the right outer arc plate 522 and the right inner arc plate 523 are connected with two sides of the right top arc plate, the inner ends of the right outer arc plate 522 and the right inner arc plate 523 are respectively provided with a right connecting block hole 524 connected with the right damping module 40, the middle part of the right outer arc plate 522 is connected with the middle part of the right inner arc plate 523 through a right middle reinforcing plate 525, a right outer reinforcing plate 526 connected with the bottom surface of the right top arc plate 521 is arranged between the outer ends of the right outer arc plate 522 and the right inner arc plate 523, and the parts of the right top arc plate 521, which are positioned at two sides of the right outer reinforcing plate 526, are respectively provided with a right connecting branch hole 527;
the right connecting support 51 comprises a right connecting transverse plate 511, a right connecting vertical plate 512 and a right middle angle plate 513, the outer side edge of the right connecting transverse plate 511 is vertically connected with the bottom edge of the right connecting vertical plate 512, the middle part of the right connecting transverse plate 511 is connected with the middle part of the right connecting vertical plate 512 through the right middle angle plate 513, two ends of the right connecting vertical plate 512 are respectively connected with two ends of the right connecting transverse plate 511 through a right angle plate 514, a right connecting transition hole 515 connected with a right connecting branch hole 527 is formed in the position, located on two sides of the right middle angle plate 513, of the right connecting vertical plate 512, and a right connecting vehicle hole 516 connected with the vehicle frame 8 is formed in the position, located on two sides of the right middle angle plate 513, of the right connecting vertical plate 512.
The mounting method of the suspension system of the rear-drive electric automobile comprises the following steps: the left connecting unit 3 and the rear connecting unit 7 are respectively welded with the frame 8, and the right connecting unit 5 is connected with the frame 8 through bolts; then the left suspension 2 and the rear suspension 6 are separately arranged on the reduction gearbox 11 by bolts, the right suspension 4 is separately arranged on the driving motor 12 by bolts, and the bolts are not tightened, so as to obtain a power assembly after the separate arrangement; and lifting the power assembly after the split charging so as to enable the left damping module 20 in the left suspension 2 to be in bolted connection with the left connecting unit 3, the right damping module 40 in the right suspension 4 to be in bolted connection with the right connecting unit 5, and the rear damping module 60 in the rear suspension 6 to be in bolted connection with the rear connecting unit 7, and tightening the untightened bolts after the full connection, thereby completing the installation.
The principle of the invention is illustrated as follows:
in the invention, the top of the left vertical bottom plate 21 is connected with the outer end of the left transverse bottom plate 22, and the connecting structure is preferably vertically connected.
In the invention, a plurality of left connecting holes 361 in the left connecting unit 3, rear connecting holes 771 in the rear connecting unit 7 and right connecting holes 516 in the right connecting unit 5 are convenient for plug welding so as to be welded with the corresponding vehicle frame 8.
In the present invention, the right connecting block hole 524 in the right transition bracket 52 is used to connect with the right damping module 40 in the right suspension 4, and the right connecting block hole 524 is preferably a waist-shaped hole to have an adjustment margin, so as to facilitate the assembly of the whole powertrain.
Example 1:
referring to fig. 1 to 15, a suspension system of a rear-drive electric vehicle comprises a reduction gearbox 11 and a drive motor 12, wherein the right side of the front end of the reduction gearbox 11 is connected with the left end of the drive motor 12, and two sides of the rear end of the reduction gearbox 11 are respectively connected with the inner ends of a left drive shaft assembly 13 and a right drive shaft assembly 14; the left side of the front end of the reduction gearbox 11 is connected with the left suspension 2, the joint of the left suspension 2 and the reduction gearbox 11 is arranged opposite to the joint of the driving motor 12 and the reduction gearbox 11, the right end of the driving motor 12 is connected with the right suspension 4, and the part, close to the joint of the reduction gearbox 11 and the right driving shaft assembly 14, on the rear end of the reduction gearbox 11 is connected with the rear suspension 6; the left suspension 2, the right suspension 4 and the rear suspension 6 are correspondingly provided with a left damping module 20, a right damping module 40 and a rear damping module 60 in the top ends respectively, and the left damping module 20, the right damping module 40 and the rear damping module 60 are connected with the frame 8 through a left connecting unit 3, a right connecting unit 5 and a rear connecting unit 7 respectively.
The mounting method of the suspension system of the rear-drive electric automobile comprises the following steps: the left connecting unit 3 and the rear connecting unit 7 are respectively welded with the frame 8, and the right connecting unit 5 is connected with the frame 8 through bolts; then the left suspension 2 and the rear suspension 6 are separately arranged on the reduction gearbox 11 by bolts, the right suspension 4 is separately arranged on the driving motor 12 by bolts, and the bolts are not tightened, so as to obtain a power assembly after the separate arrangement; and lifting the power assembly after the split charging so as to enable the left damping module 20 in the left suspension 2 to be in bolted connection with the left connecting unit 3, the right damping module 40 in the right suspension 4 to be in bolted connection with the right connecting unit 5, and the rear damping module 60 in the rear suspension 6 to be in bolted connection with the rear connecting unit 7, and tightening the untightened bolts after the full connection, thereby completing the installation.
Example 2:
the basic contents are the same as example 1, except that:
in hardware:
the left connecting unit 3 is a left connecting bracket, the rear connecting unit 7 is a rear connecting bracket, and the right connecting unit 5 comprises a right connecting bracket 51 and a right transition bracket 52.
In the installation method:
the welding of the left connecting unit 3 and the rear connecting unit 7 with the frame 8 respectively means that: and respectively welding the left connecting bracket and the rear connecting bracket with the frame 8. The bolt connection between the right connecting unit 5 and the frame 8 means that: the right connecting bracket 51 is bolted to the frame 8, the bolts are tightened, and then the right transition bracket 52 is bolted to the right connecting bracket 51, and the bolts are not tightened.
Example 3:
the basic contents are the same as example 1, except that:
please refer to fig. 14, which shows a pointed bolt 10 used in the bolt connection according to the present invention, the pointed bolt 10 includes a nut 101, a screw rod section 102, a threaded section 103, and a bolt head 104, which are connected in sequence, an external thread is disposed on a side wall of the threaded section 103, a top end of the bolt head 104 is connected with the threaded section 103, a bottom end of the bolt head 104 extends outward, and a diameter of the bolt head 104 changes in a tapered manner from top to bottom.
The above description is only a preferred embodiment of the present invention, and the scope of the present invention is not limited to the above embodiment, but equivalent modifications or changes made by those skilled in the art according to the present disclosure should be included in the scope of the present invention as set forth in the appended claims.
Claims (8)
1. The utility model provides a rear-mounted rear-guard electric automobile's suspension system, includes reducing gear box (11) and driving motor (12), the right side of the front end of reducing gear box (11) is connected with the left end of driving motor (12), and the both sides of the rear end of reducing gear box (11) are connected with the inner of left drive shaft assembly (13), right drive shaft assembly (14) respectively, its characterized in that:
the left side of the front end of the reduction gearbox (11) is connected with the left suspension (2), the joint of the left suspension (2) and the reduction gearbox (11) is arranged opposite to the joint of the driving motor (12) and the reduction gearbox (11), the right end of the driving motor (12) is connected with the right suspension (4), and the part, close to the joint of the reduction gearbox (11) and the right driving shaft assembly (14), on the rear end of the reduction gearbox (11) is connected with the rear suspension (6);
a left shock absorption module (20), a right shock absorption module (40) and a rear shock absorption module (60) are respectively and correspondingly arranged in the top ends of the left suspension (2), the right suspension (4) and the rear suspension (6), and the left shock absorption module (20), the right shock absorption module (40) and the rear shock absorption module (60) are respectively connected with the frame (8) through a left connecting unit (3), a right connecting unit (5) and a rear connecting unit (7) which correspond to each other;
the right suspension (4) comprises a right damping module (40) and a right arc bottom plate (41), the part, close to the top end, of the right arc bottom plate (41) is vertically connected with the bottom of the side wall of the right damping module (40), a right outer arc reinforcing plate (42) and a right inner arc reinforcing plate (43) are respectively arranged on the surface of the right arc bottom plate (41) along the two sides of the right arc bottom plate, and the parts, located on the two sides of the right damping module (40), of the surface of the right arc bottom plate (41) are respectively connected with the right outer arc reinforcing plate (42) and a right outer short reinforcing plate (44); the positions, which are positioned at two sides of the right damping module (40), on the surface of the right arc bottom plate (41) are provided with right connecting machine holes (411) connected with the driving motor (12);
the right connecting unit (5) comprises a right connecting bracket (51) and a right transition bracket (52); the right transition support (52) comprises a right top arc plate (521) and a right outer arc plate (522) and a right inner arc plate (523) which are connected with the two sides of the right top arc plate, the inner ends of the right outer arc plate (522) and the right inner arc plate (523) are respectively provided with a right connecting block hole (524) connected with the right damping module (40), the middle part of the right outer arc plate (522) is connected with the middle part of the right inner arc plate (523) through a right middle reinforcing plate (525), a right outer reinforcing plate (526) connected with the bottom surface of the right top arc plate (521) is arranged between the outer ends of the right outer arc plate (522) and the right inner arc plate (523), and the parts of the right top arc plate (521) on the two sides of the right outer reinforcing plate (526) are respectively provided with a right connecting support hole (527); the right connecting support (51) comprises a right connecting transverse plate (511), a right connecting vertical plate (512) and a right middle angle plate (513), the outer side edge of the right connecting transverse plate (511) is vertically connected with the bottom edge of the right connecting vertical plate (512), the middle part of the right connecting transverse plate (511) is connected with the middle part of the right connecting vertical plate (512) through the right middle angle plate (513), two ends of the right connecting vertical plate (512) are respectively connected with two ends of the right connecting transverse plate (511) through a right angle plate (514), a right connecting transition hole (515) connected with a right connecting supporting hole (527) is formed in the position on two sides of the right middle angle plate (513) on the right connecting transverse plate (511), and a right connecting vehicle hole (516) connected with a vehicle frame (8) is formed in the position on two sides of the right connecting vertical plate (512) on the right middle angle plate (513).
2. The suspension system of a rear-drive electric vehicle of claim 1, wherein: the left shock absorption module (20), the right shock absorption module (40) and the rear shock absorption module (60) are consistent in structure and comprise a sleeve (601), rubber (602), an inner shell (603) and an outer shell (604) which are vulcanized into a whole; the rubber (602) is wrapped outside the sleeve (601), the inner shell (603) is wrapped outside the rubber (602), the outer shell (604) is wrapped outside the inner shell (603), and the upper shock absorption cavity (605) and the lower shock absorption cavity (606) are formed in the rubber (602).
3. The suspension system of a rear-drive electric vehicle according to claim 2, wherein: the central axes of the inner sleeves (601) of the left suspension (2) and the right suspension (4) are parallel to each other, the central axis of the inner sleeve (601) of the left suspension (2) is perpendicular to the central axis of the inner sleeve (601) of the rear suspension (6), and the central axis of the inner sleeve (601) of the rear suspension (6) is parallel to the central axis of the right driving shaft assembly (14);
the part of the frame (8) connected with the left connecting unit (3) is parallel to the central axis of the sleeve (601) in the left suspension (2), the part of the frame (8) connected with the right connecting unit (5) is parallel to the central axis of the sleeve (601) in the right suspension (4), and the part of the frame (8) connected with the rear connecting unit (7) is parallel to the central axis of the sleeve (601) in the rear suspension (6).
4. The suspension system of a rear drive electric vehicle according to claim 1, 2 or 3, wherein: the left suspension (2) comprises a left shock absorption module (20), a left vertical bottom plate (21) and a left transverse bottom plate (22), the top of the left vertical bottom plate (21) is connected with the outer end of the left transverse bottom plate (22), a left connecting box hole (23) connected with the reduction box (11) is formed in the plate surface of the left vertical bottom plate (21), the bottom surface of the left transverse bottom plate (22) is in lap joint with the top of the reduction box (11), left outer reinforcing ribs (24) and left inner reinforcing ribs (25) are respectively arranged on the plate surface of the left vertical bottom plate (21) along the inner side and the outer side of the plate surface, a left inner arc-shaped edge (211) is formed in the inner side edge of the left vertical bottom plate (21), and the left inner reinforcing ribs (25) are arranged along the left inner arc-shaped edge (211);
the bottom of the left shock absorption module (20) is connected with the surface of the left vertical bottom plate (21) through a left support plate (26) and a left support plate (27), the side of the left shock absorption module (20) is connected with the top surface of the left transverse bottom plate (22) through a left support plate (28), one ends of the left support plate (26) and the left support plate (27) are arranged close to the left support plate (28), and the other ends of the left support plate (26) and the left support plate (27) are arranged close to the left inner reinforcing rib (25).
5. The suspension system of a rear-drive electric vehicle of claim 4, wherein: left side linkage unit (3) are left linking bridge, and it includes left oblique roof (33) and left otic placode (31), left otic placode (32) that are connected rather than both sides, left link hole (34) that are connected with left shock attenuation module (20) are all seted up to the bottom of left otic placode (31), left otic placode (32), and left clamp opening (35) have all been seted up at the top of left otic placode (31), left otic placode (32) in order to be connected with left L template (36), all seted up on two faces of left L template (36) and linked left vehicle hole (361) that are connected with frame (8), and the position that lies in left oblique roof (33) both sides on left L template (36) respectively is connected with the side of left otic placode (31) or left otic placode (32) through a left oblique reinforcing plate (37).
6. The suspension system of a rear drive electric vehicle according to claim 1, 2 or 3, wherein: the rear suspension (6) comprises a rear shock absorption module (60), a rear long bottom plate (61), a rear short bottom plate (62) and a rear cover shell (63), the bottom of the side wall of the rear shock absorption module (60) is connected with the top of the rear long bottom plate (61), the middle part of the rear long bottom plate (61) is connected with the inner end of the rear short bottom plate (62), the plate surface of the rear short bottom plate (62) is connected with the side part of the rear cover shell (63) through two rear reinforcing corner plates (64), the bottom of the rear cover shell (63) is connected with the plate surface of the rear long bottom plate (61), a rear cavity (631) is clamped between the rear cover shell (63) and the rear long bottom plate (61), and the top of the rear cover shell (63) is connected with the side wall of the rear shock absorption module (60);
the surface of the rear long bottom plate (61) below the rear cover shell (63) is connected with the rear outer reinforcing plate (65), and the side edge of the rear long bottom plate (61) opposite to the rear outer reinforcing plate (65) is a rear concave arc edge (611); the plate surface between the rear concave arc edge (611) and the rear outer reinforcing plate (65) and the plate surface between the two rear reinforcing angle plates (64) are provided with rear box connecting holes (66) connected with the reduction gearbox (11).
7. The suspension system of a rear-drive electric vehicle of claim 6, wherein: the rear connecting unit (7) is a rear connecting support and comprises a rear oblique top plate (73) and a rear ear plate (71) and a rear two ear plate (72) which are connected with the two sides of the rear oblique top plate, rear connecting block holes (74) connected with the rear shock absorption module (60) are formed in the bottom ends of the rear ear plate (71) and the rear two ear plate (72), and the top ends of the rear ear plate (71), the rear two ear plate (72) and the rear oblique top plate (73) are connected with the side edge of a rear flat top plate (75);
the top of back otic placode (71), back two otic placodes (72) has all been seted up the back and has been pressed from both sides mouthful (76) in order to be connected with back L template (77), has all seted up back connection car hole (771) that is connected with frame (8) on two faces of back L template (77), and the position that lies in back flush head plate (75) both sides on back L template (77) respectively is connected with the side of back otic placode (71) or back two otic placodes (72) through oblique reinforcing plate (78) after one.
8. A mounting method of a suspension system of a rear-drive electric vehicle according to claim 1, 2 or 3, characterized in that the mounting method comprises the steps of:
firstly, respectively welding the left connecting unit (3) and the rear connecting unit (7) with the frame (8), and connecting the right connecting unit (5) with the frame (8) through bolts; then the left suspension (2) and the rear suspension (6) are respectively arranged on the reduction gearbox (11) by bolts, the right suspension (4) is respectively arranged on the driving motor (12) by bolts, and the bolts are not tightened, so that a power assembly after the split charging is obtained; and then lifting the power assembly which is completely split to enable a left damping module (20) in the left suspension (2) to be in bolted connection with the left connecting unit (3), a right damping module (40) in the right suspension (4) to be in bolted connection with the right connecting unit (5), a rear damping module (60) in the rear suspension (6) to be in bolted connection with the rear connecting unit (7), and after full connection, tightening the bolts which are not tightened before to complete the installation.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111891219B (en) * | 2020-07-27 | 2021-08-06 | 东风汽车股份有限公司 | Outer connected system of many suspensions on electric automobile |
| CN111873774B (en) * | 2020-07-27 | 2021-10-22 | 东风汽车股份有限公司 | Rear-mounted rear-drive system of electric automobile |
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| KR20000060931A (en) * | 1999-03-22 | 2000-10-16 | 정몽규 | Power plant mount for automotive vehicle |
| JP4339953B2 (en) * | 1999-04-28 | 2009-10-07 | 本田技研工業株式会社 | Arrangement structure of equipment in vehicle mounted with fuel cell system |
| CN205970799U (en) * | 2016-08-03 | 2017-02-22 | 上海汽车集团股份有限公司 | A total device system of power for rearmounted rear -guard pure electric vehicles |
| CN109130818A (en) * | 2018-09-17 | 2019-01-04 | 奇瑞商用车（安徽）有限公司 | A kind of suspension type electric vehicle suspension system and its application method |
| CN110978977A (en) * | 2019-12-31 | 2020-04-10 | 东风汽车集团有限公司 | Motor assembly suspension structure and suspension system of pure electric vehicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111891219B (en) * | 2020-07-27 | 2021-08-06 | 东风汽车股份有限公司 | Outer connected system of many suspensions on electric automobile |
| CN111873774B (en) * | 2020-07-27 | 2021-10-22 | 东风汽车股份有限公司 | Rear-mounted rear-drive system of electric automobile |
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