CN107344489B - Power assembly suspension system of pure electric commercial vehicle and assembly method thereof - Google Patents
Power assembly suspension system of pure electric commercial vehicle and assembly method thereof Download PDFInfo
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- CN107344489B CN107344489B CN201710571540.9A CN201710571540A CN107344489B CN 107344489 B CN107344489 B CN 107344489B CN 201710571540 A CN201710571540 A CN 201710571540A CN 107344489 B CN107344489 B CN 107344489B
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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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Abstract
The utility model provides a pure electric commercial vehicle power assembly suspension system, the front end that contains the power assembly of motor is connected with the middle part of the preceding suspension bracket of U type structure behind preceding suspension support, preceding suspension cushion assembly in proper order, the left and right sides of preceding suspension bracket is connected with the frame longeron, the rear end of power assembly is connected with the frame longeron through the back suspension support in proper order, the back suspension cushion assembly, the connection between preceding suspension support, preceding suspension cushion assembly, preceding suspension bracket is two by two, and the connection between back suspension support, the back suspension cushion assembly is the connection of tightening perpendicularly, preceding suspension cushion assembly includes skeleton, rubber body and lower skeleton, be provided with upper groove, the lower lug of mutual joint in upper and lower skeleton. The design is not only suitable for the power assembly of the pure electric commercial vehicle additionally provided with the motor, has good vibration isolation effect, but also can reduce assembly difficulty, realize three-way limit, and has light weight and low cost.
Description
Technical Field
The invention relates to a vehicle power assembly suspension system, in particular to a power assembly suspension system of a pure electric commercial vehicle and an assembly method thereof, which are particularly suitable for improving the vibration isolation effect of the power assembly of the pure electric commercial vehicle additionally provided with a motor.
Background
In the automobile power assembly suspension device, a transmission suspension system of a commercial vehicle is used as auxiliary supporting equipment of the power assembly and is connected with a transmission so as to ensure that the deformation and displacement of the transmission in the running process of the vehicle do not exceed the allowable range, and meanwhile, the transmission has better vibration inhibiting capacity, but the vibration isolating effect of the conventional commercial vehicle power assembly suspension is weaker, for example, the vibration isolating rate of the stell type is only about 45%, the vibration isolating requirement of the conventional commercial vehicle cannot be met, and particularly, after new energy is introduced into the field of the commercial vehicle, the vibration isolating requirement of the pure electric commercial vehicle cannot be met.
The invention patent application with the application publication number of CN104118307A and the application publication date of 2014, 10 and 29 discloses an automobile power assembly suspension device, which comprises an engine suspension arranged at the front part of an engine and two gearbox suspensions arranged on a rear gearbox of the engine; the engine suspension comprises a front suspension cylinder body bracket connected with the bottom of the engine, a front suspension cross beam with two ends connected with the front suspension bracket is arranged below the front suspension cylinder body bracket, and the front suspension bracket is connected with the vehicle beam; a front suspension cushion is arranged between the front suspension cylinder body bracket and the front suspension cross beam; the gearbox suspension comprises a rear suspension cylinder body bracket connected with the gearbox, and the rear suspension cylinder body bracket is connected with a rear suspension cushion fixed on the vehicle beam. While this design can reduce noise to some extent to improve vibration isolation, it still has the following drawbacks:
firstly, the design is only suitable for a traditional power assembly of a commercial vehicle, but is not suitable for a power assembly of a pure electric commercial vehicle with an additional motor;
secondly, the front suspension bracket in the design comprises a front suspension cross beam, a left front suspension bracket and a right front suspension bracket which are connected with the left end and the right end of the front suspension cross beam, so that the front suspension bracket is not beneficial to manufacturing and assembly, and belongs to a split structure, the force transmission effect is weak, and the vibration isolation effect is poor.
The disclosure of this background section is only intended to increase the understanding of the general background of the present patent application and should not be taken as an admission or any form of suggestion that this information forms the prior art already known to a person of ordinary skill in the art.
Disclosure of Invention
The invention aims to overcome the defects and problems in the prior art that the power assembly and the vibration isolation effect of a pure electric commercial vehicle with an additional motor are poor, and provides a power assembly suspension system of the pure electric commercial vehicle and an assembly method thereof, wherein the power assembly and the vibration isolation effect of the power assembly are good.
In order to achieve the above object, the technical solution of the present invention is: the power assembly suspension system of the pure electric commercial vehicle comprises a front suspension assembly and a rear suspension assembly, wherein the front suspension assembly is used for connecting the front end of the power assembly with a frame longitudinal beam, and the rear suspension assembly is used for connecting the rear end of the power assembly with the frame longitudinal beam;
the front suspension assembly comprises a front suspension bracket, a front suspension cushion assembly and a front suspension bracket, the front end of the power assembly is connected with the middle part of the front suspension bracket after passing through the front suspension bracket and the front suspension cushion assembly in sequence, the left end and the right end of the front suspension bracket are connected with a frame longitudinal beam, the left end and the right end of the front suspension bracket are higher than the middle part of the front suspension bracket, and the front suspension bracket is of a U-shaped structure;
the rear suspension assembly comprises a left-right symmetrical rear suspension unit, the rear suspension unit comprises a rear suspension bracket and a rear suspension cushion assembly, and the rear end of the power assembly is connected with a frame longitudinal beam after passing through the rear suspension bracket and the rear suspension cushion assembly in sequence;
the front suspension support, the front suspension cushion assembly and the front suspension bracket are connected in a vertical tightening mode, and the rear suspension support and the rear suspension cushion assembly are connected in a vertical tightening mode.
The power assembly comprises a motor and a gearbox which are connected with each other, the motor is positioned at the front end of the power assembly, and the gearbox is positioned at the rear end of the power assembly; the front end of the motor is connected with the middle part of the front suspension bracket after passing through the front suspension bracket and the front suspension cushion assembly in sequence, and the rear end of the gearbox is connected with the frame longitudinal beam after passing through the rear suspension bracket and the rear suspension cushion assembly in sequence.
The left end and the right end of the front suspension bracket are connected with the outer covering surface of the frame longitudinal beam, and the rear suspension cushion assembly is connected with the inner covering surface of the frame longitudinal beam.
The front suspension support comprises a front support bottom plate, a front support left side plate, a front support right side plate and a U-shaped front support rear plate, wherein the middle part of the front support bottom plate is connected with a front suspension cushion assembly positioned below the front support bottom plate, the rear end of the front support bottom plate is vertically connected with the bottom end of the middle part of the front support rear plate, the left end and the right end of the front support rear plate are connected with the front end of the power assembly, and a space formed by the front support rear plate and the front support bottom plate through mutual connection is inlaid and connected with the front support left side plate and the front support right side plate.
The front suspension cushion assembly comprises an upper framework, a rubber body and a lower framework which are sequentially connected from top to bottom and are vulcanized into a whole, wherein the upper framework comprises an upper top plate, an upper inward flange and an upper outward flange which are connected with the inner side edge and the outer side edge of the upper framework, the lower framework comprises a lower bottom plate, a lower inward flange and a lower outward flange which are connected with the inner side edge and the outer side edge of the lower framework, the upper inward flange and the lower inward flange are on the same plane, the upper outward flange and the lower outward flange are on the same plane, and the rubber body is positioned between the planes of the upper inward flange and the lower inward flange and the planes of the upper outward flange and the lower outward flange;
the top surface of going up the roof is connected with preceding suspension support, and the bottom surface of going up the roof contacts with the top surface of the rubber body, and the bottom surface of the rubber body contacts with the top surface of lower plate, and the bottom surface of lower plate is connected with the middle part of preceding suspension bracket, go up the medial surface setting that the internal flanging, the internal flanging all are close to the rubber body, go up the external flanging, the external flanging all are close to the lateral surface setting of the rubber body down.
The upper connecting holes connected with the front suspension bracket are formed in the two ends of the upper top plate, the lower connecting holes connected with the middle of the transition connecting flat plate are formed in the two ends of the lower bottom plate, and the transition connecting holes connected with the middle of the front suspension bracket are formed in the four corners of the transition connecting flat plate.
The upper inner flanging and the upper outer flanging are identical in structure and respectively comprise an upper left foot, an upper groove and an upper right foot which are sequentially connected; the structure of the lower inner flanging and the lower outer flanging is consistent, the lower inner flanging and the lower outer flanging are respectively provided with a lower left platform part, a lower convex block and a lower right platform part which are connected in sequence, the upper groove is mutually clamped with the lower convex block positioned in the upper groove, a clamping gap exists between the upper groove and the lower convex block, the upper left foot is higher than the lower left platform part, and the upper right foot is higher than the lower right platform part.
The upper groove comprises an upper wide cavity, a middle cone cavity and a lower narrow cavity which are sequentially communicated from top to bottom, the diameter of the middle cone cavity is gradually changed from top to bottom, and the diameter of the upper wide cavity is larger than that of the lower narrow cavity; the lower lug comprises a lower narrow part, a middle cone part and an upper wide part which are sequentially connected from bottom to top, the diameter of the middle cone part is gradually changed from bottom to top, and the diameter of the lower narrow part is smaller than that of the upper wide part; an upper gap exists between the upper wide cavity and the upper wide part positioned in the upper wide cavity, a middle gap exists between the middle cone cavity and the middle cone part positioned in the middle wide cavity, a lower gap exists between the lower narrow cavity and the lower narrow part positioned in the middle wide cavity, and the upper gap, the middle gap and the lower gap are mutually communicated to form a clamping gap.
The cross sections of the upper wide cavity, the lower narrow cavity, the upper wide part and the lower narrow part are rectangular, and the cross sections of the middle cone cavity and the middle cone part are trapezoidal with the upper wide part and the lower narrow part; the size of the clamping gap is 7-15 mm.
The assembly method of the power assembly suspension system of the pure electric commercial vehicle comprises the following steps of:
during assembly, the inner unit and the outer unit are assembled at the same time, the power assembly is assembled, then the front suspension cushion assembly and the front suspension bracket are vertically and tightly connected, the rear suspension bracket and the rear suspension cushion assembly are vertically and tightly connected, and the assembly can be completed after the connection;
the assembly of the internal unit means: the front suspension bracket is connected with the front end of the power assembly, the rear suspension bracket is connected with the rear end of the power assembly, and then the front suspension bracket is vertically fastened and connected with the front suspension cushion assembly;
the assembly of the external unit means: the front suspension bracket and the rear suspension cushion assembly are respectively connected with the frame longitudinal beam.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention relates to a power assembly suspension system of a pure electric commercial vehicle and an assembly method thereof, wherein a front suspension assembly comprises a front suspension bracket, a front suspension cushion assembly and a front suspension bracket, a rear suspension assembly comprises a left and right symmetrical rear suspension unit, the rear suspension unit comprises a rear suspension bracket and a rear suspension cushion assembly, when the power assembly is assembled, the front end (motor) of the power assembly is connected with the front suspension bracket after passing through the front suspension bracket and the front suspension cushion assembly in sequence, the rear end (gearbox) of the power assembly is connected with a frame longitudinal beam after passing through the rear suspension bracket and the rear suspension cushion assembly in sequence, in addition, the front suspension cushion assembly is connected with the middle part of the front suspension bracket, and the left and right ends of the front suspension bracket are connected with the frame longitudinal beam, the power assembly has the advantages that: firstly, the motor and the gearbox can be correspondingly connected, three-point arrangement is integrally shown, and the supporting and vibration reducing effects are good; secondly, the front suspension bracket is of a U-shaped integrated structure, so that the number of parts is reduced, the manufacturing and the assembly are facilitated, the front suspension bracket is used as a whole for buffering and transmitting external force, and the supporting and vibration reduction effects are high. Therefore, the invention is not only suitable for the power assembly of the pure electric commercial vehicle additionally provided with the motor, but also has better vibration isolation effect.
2. According to the power assembly suspension system of the pure electric commercial vehicle and the assembly method thereof, a unique assembly method is limited in a structural design mode, namely, the front suspension bracket, the front suspension cushion assembly and the front suspension bracket are connected in a vertical tightening mode, and the rear suspension bracket and the rear suspension cushion assembly are connected in a vertical tightening mode. Therefore, the invention can reduce the assembly difficulty and improve the assembly efficiency.
3. According to the power assembly suspension system of the pure electric commercial vehicle and the assembly method thereof, the front suspension bracket is of the U-shaped structure with the protruding grooves, the groove structure can increase the overall rigidity and strength of the front suspension bracket, meanwhile, the front suspension bracket is of an integrated structure, only sheet metal stamping is needed during manufacturing, the number of parts is greatly reduced, and the manufacturing difficulty and the product cost are reduced. Therefore, the invention has the advantages of higher rigidity and strength, easy manufacture and lower cost.
4. The invention relates to a power assembly suspension system of a pure electric commercial vehicle and an assembly method thereof, wherein a front suspension cushion assembly comprises an upper framework, a rubber body and a lower framework which are vulcanized into a whole, wherein the rubber body is clamped between the upper framework and the lower framework along the Y direction, an upper top plate and a lower bottom plate clamp the rubber body between the upper framework and the lower framework along the Z direction, and meanwhile, an upper groove and a lower lug which are clamped with each other are arranged between the upper inner flanging and the lower inner flanging, and the upper groove and the lower lug are used for limiting X, Z directions, so that the front suspension cushion assembly can limit the displacement of a motor in the whole vehicle X, Y, Z directions, avoid the collision of the motor with peripheral accessories during operation and protect the motor and the peripheral accessories. Therefore, the invention can realize three-way limit and has stronger protection effect.
5. According to the power assembly suspension system for the pure electric commercial vehicle and the assembly method thereof, the upper inner flanging and the lower inner flanging are on the same plane, the upper outer flanging and the lower outer flanging are on the same plane, the external dimensions of the upper framework and the lower framework are basically consistent, the situation that the lower flanging of the upper framework is arranged on the inner side of the upper flanging of the lower framework in the prior art is avoided, the external dimensions of the upper framework and the lower framework are reduced, the overall size of the design is reduced, and the weight is reduced. Therefore, the invention is not only small in volume but also low in weight.
6. According to the power assembly suspension system of the pure electric commercial vehicle and the assembly method thereof, the left end and the right end of the upper framework and the lower framework are respectively provided with the convex parts so as to be connected and matched with the bolts, the design enhances the convenience of assembling and disassembling the bolts, the bolts are not required to be pre-buried in the middle rubber body, and meanwhile, the maintenance or replacement is facilitated even if the bolts are damaged in the assembling or using process, the maintenance cost is lower, and in addition, the end face of the rubber body is also provided with the concave bolt grooves corresponding to the upper connecting holes and the lower connecting holes, and the bolt grooves are respectively matched with the bolts penetrating through the upper connecting holes and the lower connecting holes in an up-down motion mode. Therefore, the invention is not only beneficial to the assembly and disassembly of the bolt, but also has small volume and light weight.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is an exploded view of fig. 1.
Fig. 3 is a schematic perspective view of the present invention after assembly with a powertrain.
Fig. 4 is a top view of the present invention after assembly with a powertrain.
Fig. 5 is a front view of the present invention after assembly with a powertrain.
Fig. 6 is a rear view of the present invention after assembly with a powertrain.
Fig. 7 is a schematic view of the front suspension bracket of fig. 1.
Fig. 8 is a schematic view of the front suspension cushion assembly of fig. 1.
Fig. 9 is a schematic structural view of the upper skeleton of fig. 8.
Fig. 10 is a schematic view of the structure of the lower skeleton of fig. 8.
In the figure: the power assembly 1, the motor 11, the gearbox 12, the frame rail 13, the front suspension assembly 2, the front suspension bracket 21, the front bracket bottom plate 211, the front bracket left side plate 212, the front bracket right side plate 213, the front bracket rear plate 214, the transition connecting flat plate 22, the transition connecting hole 23, the front suspension bracket 3, the outer groove 31, the first wing edge 32, the second wing edge 33, the left vertical beam 34, the left diagonal beam 35, the middle flat beam 36, the right diagonal beam 37, the right vertical beam 38, the front suspension cushion assembly 4, the upper framework 5, the upper top plate 51, the upper inner flange 52, the upper outer flange 53, the upper connecting hole 54, the upper left foot 55, the upper groove 56, the upper wide cavity 561, the middle cone cavity 562, the lower narrow cavity, the upper right foot 57, the rubber body 6, the bolt slot 61, the lower framework 7, the lower bottom plate 71, the lower inner flange 72, the lower outer flange 73, the lower connecting hole 74, the lower left stand 75, the lower bump 76, the lower narrow part 761, the middle cone 762, the upper wide part 763, the lower stand 77, the rear suspension unit assembly 8, the rear suspension cushion assembly 82, the rear suspension unit clearance gap 93, the rear suspension assembly 93, and the rear suspension unit clearance gap 93.
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings and detailed description.
Referring to fig. 1 to 10, a power assembly suspension system for a pure electric commercial vehicle comprises a front suspension assembly 2 and a rear suspension assembly 8, wherein the front suspension assembly 2 connects the front end of the power assembly 1 with a frame longitudinal beam 13, and the rear suspension assembly 8 connects the rear end of the power assembly 1 with the frame longitudinal beam 13;
the front suspension assembly 2 comprises a front suspension bracket 21, a front suspension cushion assembly 4 and a front suspension bracket 3, wherein the front end of the power assembly 1 is connected with the middle part of the front suspension bracket 3 after passing through the front suspension bracket 21 and the front suspension cushion assembly 4 in sequence, the left end and the right end of the front suspension bracket 3 are connected with a frame longitudinal beam 13, the left end and the right end of the front suspension bracket 3 are higher than the middle part of the front suspension bracket 3, and the front suspension bracket 3 is of a U-shaped structure;
the rear suspension assembly 8 comprises a left-right symmetrical rear suspension unit 81, the rear suspension unit 81 comprises a rear suspension bracket 82 and a rear suspension cushion assembly 83, and the rear end of the power assembly 1 is connected with the frame longitudinal beam 13 after passing through the rear suspension bracket 82 and the rear suspension cushion assembly 83 in sequence;
the front suspension bracket 21, the front suspension cushion assembly 4 and the front suspension bracket 3 are connected in a vertical tightening manner, and the rear suspension bracket 82 and the rear suspension cushion assembly 83 are connected in a vertical tightening manner.
The power assembly 1 comprises a motor 11 and a gearbox 12 which are connected with each other, the motor 11 is positioned at the front end of the power assembly 1, and the gearbox 12 is positioned at the rear end of the power assembly 1; the front end of the motor 11 is connected with the middle part of the front suspension bracket 3 after passing through the front suspension bracket 21 and the front suspension cushion assembly 4 in sequence, and the rear end of the gearbox 12 is connected with the frame longitudinal beam 13 after passing through the rear suspension bracket 82 and the rear suspension cushion assembly 83 in sequence.
The left and right ends of the front suspension bracket 3 are connected to the outer facing of the frame rail 13, and the rear suspension cushion assembly 83 is connected to the inner facing of the frame rail 13.
The front suspension bracket 21 comprises a front bracket bottom plate 211, a front bracket left side plate 212, a front bracket right side plate 213 and a U-shaped front bracket rear plate 214, the middle part of the front bracket bottom plate 211 is connected with a front suspension cushion assembly 4 positioned below the front bracket bottom plate, the rear end of the front bracket bottom plate 211 is vertically connected with the bottom end of the middle part of the front bracket rear plate 214, the left end and the right end of the front bracket rear plate 214 are connected with the front end of the power assembly 1, and a space clamped by the front bracket rear plate 214 and the front bracket bottom plate 211 is inlaid and connected with the front bracket left side plate 212 and the front bracket right side plate 213.
The front suspension cushion assembly 4 comprises an upper framework 5, a rubber body 6 and a lower framework 7 which are sequentially connected from top to bottom and vulcanized into a whole, wherein the upper framework 5 comprises an upper top plate 51, an upper inner flanging 52 and an upper outer flanging 53 which are connected with the inner side edge and the outer side edge of the upper framework, the lower framework 7 comprises a lower bottom plate 71, a lower inner flanging 72 and a lower outer flanging 73 which are connected with the inner side edge and the outer side edge of the lower framework, the upper inner flanging 52 and the lower inner flanging 72 are on the same plane, the upper outer flanging 53 and the lower outer flanging 73 are on the same plane, and the rubber body 6 is positioned between the planes of the upper inner flanging 52 and the lower inner flanging 72 and the planes of the upper outer flanging 53 and the lower outer flanging 73;
the top surface of the upper top plate 51 is connected with the front suspension bracket 21, the bottom surface of the upper top plate 51 is contacted with the top surface of the rubber body 6, the bottom surface of the rubber body 6 is contacted with the top surface of the lower bottom plate 71, the bottom surface of the lower bottom plate 71 is connected with the middle part of the front suspension bracket 3, the upper inner flanging 52 and the lower inner flanging 72 are all arranged near the inner side surface of the rubber body 6, and the upper outer flanging 53 and the lower outer flanging 73 are all arranged near the outer side surface of the rubber body 6.
Upper connecting holes 54 connected with the front suspension bracket 21 are formed in two ends of the upper top plate 51, lower connecting holes 74 connected with the middle of the transition connecting flat plate 22 are formed in two ends of the lower bottom plate 71, and transition connecting holes 23 connected with the middle of the front suspension bracket 3 are formed in four corners of the transition connecting flat plate 22.
The upper inner flange 52 and the upper outer flange 53 have the same structure and respectively comprise an upper left foot 55, an upper groove 56 and an upper right foot 57 which are sequentially connected; the structures of the lower inner flange 72 and the lower outer flange 73 are identical, each lower inner flange comprises a lower left platform part 75, a lower protruding block 76 and a lower right platform part 77 which are connected in sequence, the upper groove 56 and the lower protruding block 76 positioned in the upper groove are clamped with each other, a clamping gap 9 exists between the upper groove 56 and the lower protruding block 76, the upper left foot 55 is higher than the lower left platform part 75, and the upper right foot 57 is higher than the lower right platform part 77.
The upper groove 56 comprises an upper wide cavity 561, a middle cone cavity 562 and a lower narrow cavity 563 which are sequentially communicated from top to bottom, the diameter of the middle cone cavity 562 is gradually changed from top to bottom, and the diameter of the upper wide cavity 561 is larger than that of the lower narrow cavity 563; the lower bump 76 includes a lower narrow portion 761, a middle cone portion 762 and an upper wide portion 763, which are sequentially connected from bottom to top, the diameter of the middle cone portion 762 is gradually changed from bottom to top, and the diameter of the lower narrow portion 761 is smaller than the diameter of the upper wide portion 763; an upper gap 91 exists between the upper wide cavity 561 and the upper wide portion 763 located inside thereof, a middle gap 92 exists between the middle cone cavity 562 and the middle cone portion 762 located inside thereof, a lower gap 93 exists between the lower narrow cavity 563 and the lower narrow portion 761 located inside thereof, and the upper gap 91, the middle gap 92, and the lower gap 93 communicate with each other to constitute the engagement gap 9.
The cross sections of the upper wide cavity 561, the lower narrow cavity 563, the upper wide portion 763 and the lower narrow portion 761 are all rectangular, and the cross sections of the middle cone cavity 562 and the middle cone portion 762 are all trapezoids with wide upper part and narrow lower part; the size of the engagement gap 9 is in the range of 7-15 mm.
The assembly method of the power assembly suspension system of the pure electric commercial vehicle comprises the following steps of:
during assembly, the inner unit and the outer unit are assembled at the same time, the power assembly 1 is assembled, the front suspension cushion assembly 4 is vertically and tightly connected with the front suspension bracket 3, the rear suspension bracket 82 is vertically and tightly connected with the rear suspension cushion assembly 83, and the assembly can be completed after the connection;
the assembly of the internal unit means: the front suspension bracket 21 is connected with the front end of the power assembly 1, the rear suspension bracket 82 is connected with the rear end of the power assembly 1, and then the front suspension bracket 21 is vertically fastened and connected with the front suspension cushion assembly 4;
the assembly of the external unit means: the front suspension bracket 3 and the rear suspension cushion assembly 83 are connected to the frame rail 13, respectively.
The principle of the invention is explained as follows:
the front suspension bracket 21, the front suspension cushion assembly 4 and the front suspension bracket 3 are connected in a vertical tightening manner, and the rear suspension bracket 82 and the rear suspension cushion assembly 83 are connected in a vertical tightening manner: the vertical tightening connection refers to an assembly mode of vertical connection, which is convenient for workers to operate (if the workers are connected on the side, the workers need to bend down to operate, and the operation view angle is influenced, so that the efficiency is low), and the assembly efficiency is improved.
In the assembly process, the front end (motor 11) of the power assembly 1 is connected with the front suspension bracket 21 and the front suspension cushion assembly 4, and the front suspension bracket 3 is connected with the frame longitudinal beam 13, so that split charging can be finished in advance in split charging lines or component factories (such as motor factories and frame factories), the assembly working procedures of the assembly line are reduced, and the assembly time of the assembly line is saved.
Example 1:
referring to fig. 1 to 10, a power assembly suspension system for a pure electric commercial vehicle comprises a front suspension assembly 2 and a rear suspension assembly 8, wherein the front suspension assembly 2 connects the front end of the power assembly 1 with a frame longitudinal beam 13, and the rear suspension assembly 8 connects the rear end of the power assembly 1 with the frame longitudinal beam 13; the front suspension assembly 2 comprises a front suspension bracket 21, a front suspension cushion assembly 4 and a front suspension bracket 3, wherein the front end of the power assembly 1 is connected with the middle part of the front suspension bracket 3 after passing through the front suspension bracket 21 and the front suspension cushion assembly 4 in sequence, the left end and the right end of the front suspension bracket 3 are connected with a frame longitudinal beam 13 (such as the outer covering surface of the frame longitudinal beam 13), the left end and the right end of the front suspension bracket 3 are higher than the middle part of the front suspension bracket 3, and the front suspension bracket 3 is of a U-shaped structure; the rear suspension assembly 8 comprises a left-right symmetrical rear suspension unit 81, the rear suspension unit 81 comprises a rear suspension bracket 82 and a rear suspension cushion assembly 83, and the rear end of the power assembly 1 is connected with the frame longitudinal beam 13 (such as an inner covering surface of the frame longitudinal beam 13) after passing through the rear suspension bracket 82 and the rear suspension cushion assembly 83 in sequence; the front suspension bracket 21, the front suspension cushion assembly 4 and the front suspension bracket 3 are connected in a vertical tightening manner, and the rear suspension bracket 82 and the rear suspension cushion assembly 83 are connected in a vertical tightening manner. Preferably, the power assembly 1 comprises a motor 11 and a gearbox 12 which are connected with each other, the motor 11 is positioned at the front end of the power assembly 1, and the gearbox 12 is positioned at the rear end of the power assembly 1; the front end of the motor 11 is connected with the middle part of the front suspension bracket 3 after passing through the front suspension bracket 21 and the front suspension cushion assembly 4 in sequence, and the rear end of the gearbox 12 is connected with the frame longitudinal beam 13 after passing through the rear suspension bracket 82 and the rear suspension cushion assembly 83 in sequence.
The assembly method of the power assembly suspension system of the pure electric commercial vehicle comprises the following steps of: during assembly, the inner unit and the outer unit are assembled at the same time, the power assembly 1 is assembled, the front suspension cushion assembly 4 is vertically and tightly connected with the front suspension bracket 3, the rear suspension bracket 82 is vertically and tightly connected with the rear suspension cushion assembly 83, and the assembly can be completed after the connection; the assembly of the internal unit means: the front suspension bracket 21 is connected with the front end of the power assembly 1, the rear suspension bracket 82 is connected with the rear end of the power assembly 1, and then the front suspension bracket 21 is vertically fastened and connected with the front suspension cushion assembly 4; the assembly of the external unit means: the front suspension bracket 3 and the rear suspension cushion assembly 83 are connected to the frame rail 13, respectively.
Example 2:
the basic content is the same as in example 1, except that:
the front suspension bracket 21 comprises a front bracket bottom plate 211, a front bracket left side plate 212, a front bracket right side plate 213 and a U-shaped front bracket rear plate 214, the middle part of the front bracket bottom plate 211 is connected with a front suspension cushion assembly 4 positioned below the front bracket bottom plate, the rear end of the front bracket bottom plate 211 is vertically connected with the bottom end of the middle part of the front bracket rear plate 214, the left end and the right end of the front bracket rear plate 214 are connected with the front end of the power assembly 1, and a space clamped by the front bracket rear plate 214 and the front bracket bottom plate 211 is inlaid and connected with the front bracket left side plate 212 and the front bracket right side plate 213.
Example 3:
the basic content is the same as in example 1, except that:
the front suspension cushion assembly 4 comprises an upper framework 5, a rubber body 6 and a lower framework 7 which are sequentially connected from top to bottom and vulcanized into a whole, wherein the upper framework 5 comprises an upper top plate 51, an upper inner flanging 52 and an upper outer flanging 53 which are connected with the inner side edge and the outer side edge of the upper framework, the lower framework 7 comprises a lower bottom plate 71, a lower inner flanging 72 and a lower outer flanging 73 which are connected with the inner side edge and the outer side edge of the lower framework, the upper inner flanging 52 and the lower inner flanging 72 are on the same plane, the upper outer flanging 53 and the lower outer flanging 73 are on the same plane, and the rubber body 6 is positioned between the planes of the upper inner flanging 52 and the lower inner flanging 72 and the planes of the upper outer flanging 53 and the lower outer flanging 73; the top surface of the upper top plate 51 is connected with the front suspension bracket 21, the bottom surface of the upper top plate 51 is contacted with the top surface of the rubber body 6, the bottom surface of the rubber body 6 is contacted with the top surface of the lower bottom plate 71, the bottom surface of the lower bottom plate 71 is connected with the middle part of the front suspension bracket 3, the upper inner flanging 52 and the lower inner flanging 72 are all arranged near the inner side surface of the rubber body 6, and the upper outer flanging 53 and the lower outer flanging 73 are all arranged near the outer side surface of the rubber body 6. It is preferable that the upper top plate 51 has upper connection holes 54 connected to the front suspension brackets 21 at both ends, the lower bottom plate 71 has lower connection holes 74 connected to the middle of the transition connection plate 22 at both ends, and the transition connection plates 22 have transition connection holes 23 connected to the middle of the front suspension brackets 3 at four corners.
Example 4:
the basic content is the same as in example 3, except that:
the upper inner flange 52 and the upper outer flange 53 have the same structure and respectively comprise an upper left foot 55, an upper groove 56 and an upper right foot 57 which are sequentially connected; the structures of the lower inner flange 72 and the lower outer flange 73 are identical, each lower inner flange comprises a lower left platform part 75, a lower protruding block 76 and a lower right platform part 77 which are connected in sequence, the upper groove 56 and the lower protruding block 76 positioned in the upper groove are clamped with each other, a clamping gap 9 exists between the upper groove 56 and the lower protruding block 76, the upper left foot 55 is higher than the lower left platform part 75, and the upper right foot 57 is higher than the lower right platform part 77. The upper groove 56 comprises an upper wide cavity 561, a middle cone cavity 562 and a lower narrow cavity 563 which are sequentially communicated from top to bottom, the diameter of the middle cone cavity 562 is gradually changed from top to bottom, and the diameter of the upper wide cavity 561 is larger than that of the lower narrow cavity 563; the lower bump 76 includes a lower narrow portion 761, a middle cone portion 762 and an upper wide portion 763, which are sequentially connected from bottom to top, the diameter of the middle cone portion 762 is gradually changed from bottom to top, and the diameter of the lower narrow portion 761 is smaller than the diameter of the upper wide portion 763; an upper gap 91 exists between the upper wide cavity 561 and the upper wide portion 763 located inside thereof, a middle gap 92 exists between the middle cone cavity 562 and the middle cone portion 762 located inside thereof, a lower gap 93 exists between the lower narrow cavity 563 and the lower narrow portion 761 located inside thereof, and the upper gap 91, the middle gap 92, and the lower gap 93 communicate with each other to constitute the engagement gap 9. Preferably, the cross sections of the upper wide cavity 561, the lower narrow cavity 563, the upper wide portion 763 and the lower narrow portion 761 are all rectangular, and the cross sections of the middle cone cavity 562 and the middle cone portion 762 are all trapezoids with wide upper part and narrow lower part; the size of the engagement gap 9 is in the range of 7-15 mm.
Example 5:
the basic content is the same as in example 1, except that:
the front suspension bracket 3 comprises an outer groove 31, a first wing edge 32 and a second wing edge 33, wherein the bottom of the outer groove 31 is outwards arranged in a protruding mode, the top of the outer groove 31 is respectively connected with the first wing edge 32 and the second wing edge 33, and the first wing edge 32 and the second wing edge 33 are arranged on the same plane. Meanwhile, the front suspension bracket 3 comprises a left vertical beam 34, a left inclined beam 35, a middle flat beam 36, a right inclined beam 37 and a right vertical beam 38 which are sequentially connected, wherein the left vertical beam 34 and the right vertical beam 38 are arranged in a bilateral symmetry manner, the left vertical beam 34 and the right vertical beam 38 are mutually parallel, the left inclined beam 35 and the right inclined beam 37 are arranged in a bilateral symmetry manner, the middle flat beam 36 is connected with a lower bottom plate 71 in the lower framework 7 through a transition connection flat plate 22, and the left vertical beam 34 and the left inclined beam 35 are respectively connected with outer covering surfaces of the left frame longitudinal beam 13 and the right frame longitudinal beam 13.
Claims (8)
1. The utility model provides a pure electric commercial vehicle power assembly suspension system, includes preceding suspension assembly (2) and rear suspension assembly (8), preceding suspension assembly (2) are connected the front end of power assembly (1) with frame longeron (13), rear suspension assembly (8) are connected the rear end of power assembly (1) with frame longeron (13), its characterized in that:
the front suspension assembly (2) comprises a front suspension bracket (21), a front suspension cushion assembly (4) and a front suspension bracket (3), the front end of the power assembly (1) is connected with the middle part of the front suspension bracket (3) after passing through the front suspension bracket (21) and the front suspension cushion assembly (4) in sequence, the left end and the right end of the front suspension bracket (3) are connected with a frame longitudinal beam (13), the left end and the right end of the front suspension bracket (3) are higher than the middle part of the front suspension bracket (3), and the front suspension bracket (3) is of a U-shaped structure;
the rear suspension assembly (8) comprises a rear suspension unit (81) which is bilaterally symmetrical, the rear suspension unit (81) comprises a rear suspension bracket (82) and a rear suspension cushion assembly (83), and the rear end of the power assembly (1) is connected with the frame longitudinal beam (13) after passing through the rear suspension bracket (82) and the rear suspension cushion assembly (83) in sequence;
the front suspension support (21), the front suspension cushion assembly (4) and the front suspension bracket (3) are connected in a vertical tightening manner, and the rear suspension support (82) and the rear suspension cushion assembly (83) are connected in a vertical tightening manner;
the front suspension bracket (21) comprises a front bracket bottom plate (211), a front bracket left side plate (212), a front bracket right side plate (213) and a U-shaped front bracket rear plate (214), wherein the middle part of the front bracket bottom plate (211) is connected with a front suspension cushion assembly (4) positioned below the front bracket bottom plate, the rear end of the front bracket bottom plate (211) is vertically connected with the bottom end of the middle part of the front bracket rear plate (214), the left end and the right end of the front bracket rear plate (214) are connected with the front end of the power assembly (1), and a space formed by the interconnection of the front bracket rear plate (214) and the front bracket bottom plate (211) is connected with the front bracket left side plate (212) and the front bracket right side plate (213) in an embedded mode;
the front suspension cushion assembly (4) comprises an upper framework (5), a rubber body (6) and a lower framework (7) which are sequentially connected from top to bottom and are vulcanized into a whole, the upper framework (5) comprises an upper top plate (51), an upper inner flanging (52) and an upper outer flanging (53), wherein the upper inner flanging (52) and the upper outer flanging (53) are connected with the inner side edge and the outer side edge of the upper framework, the lower framework (7) comprises a lower bottom plate (71), a lower inner flanging (72) and a lower outer flanging (73) which are connected with the inner side edge and the outer side edge of the lower framework, the upper inner flanging (52) and the lower inner flanging (72) are arranged on the same plane, and the rubber body (6) is positioned between the plane of the upper inner flanging (52), the lower inner flanging (72) and the plane of the upper outer flanging (53) and the lower outer flanging (73);
the top surface of last roof (51) is connected with preceding suspension support (21), and the bottom surface of last roof (51) contacts with the top surface of rubber body (6), and the bottom surface of rubber body (6) contacts with the top surface of lower plate (71), and the bottom surface of lower plate (71) is connected with the middle part of preceding suspension bracket (3), go up inner flange (52), lower inner flange (72) all near the medial surface setting of rubber body (6), go up outer flange (53), lower outer flange (73) all near the lateral surface setting of rubber body (6).
2. The electric only utility vehicle powertrain suspension system of claim 1, wherein: the power assembly (1) comprises a motor (11) and a gearbox (12) which are connected with each other, the motor (11) is positioned at the front end of the power assembly (1), and the gearbox (12) is positioned at the rear end of the power assembly (1); the front end of the motor (11) is connected with the middle part of the front suspension bracket (3) after passing through the front suspension bracket (21) and the front suspension cushion assembly (4) in sequence, and the rear end of the gearbox (12) is connected with the frame longitudinal beam (13) after passing through the rear suspension bracket (82) and the rear suspension cushion assembly (83) in sequence.
3. A power train suspension system for an electric only commercial vehicle according to claim 1 or 2, characterized in that: the left end and the right end of the front suspension bracket (3) are connected with the outer covering surface of the frame longitudinal beam (13), and the rear suspension cushion assembly (83) is connected with the inner covering surface of the frame longitudinal beam (13).
4. The electric only utility vehicle powertrain suspension system of claim 1, wherein: upper connecting holes (54) connected with the front suspension bracket (21) are formed in the two ends of the upper top plate (51), lower connecting holes (74) connected with the middle of the transition connecting flat plate (22) are formed in the two ends of the lower bottom plate (71), and transition connecting holes (23) connected with the middle of the front suspension bracket (3) are formed in the four corners of the transition connecting flat plate (22).
5. The electric only utility vehicle powertrain suspension system of claim 1, wherein: the upper inner flanging (52) and the upper outer flanging (53) have the same structure and respectively comprise an upper left foot (55), an upper groove (56) and an upper right foot (57) which are connected in sequence; the structure of lower internal flanging (72), lower external flanging (73) is unanimous, all including lower left platform portion (75), lower lug (76) and lower right platform portion (77) that connect gradually, go up recess (56) and lie in its inside lug (76) each other joint down, go up recess (56), have block clearance (9) down between lug (76), and go up left foot (55) and be higher than left platform portion (75) setting down, go up right foot (57) and be higher than right platform portion (77) setting down.
6. The electric only commercial vehicle powertrain suspension system of claim 5, wherein: the upper groove (56) comprises an upper wide cavity (561), a middle cone cavity (562) and a lower narrow cavity (563) which are sequentially communicated from top to bottom, the diameter of the middle cone cavity (562) is gradually changed from top to bottom, and the diameter of the upper wide cavity (561) is larger than the diameter of the lower narrow cavity (563); the lower lug (76) comprises a lower narrow part (761), a middle cone part (762) and an upper wide part (763) which are sequentially connected from bottom to top, the diameter of the middle cone part (762) is gradually changed from bottom to top, and the diameter of the lower narrow part (761) is smaller than the diameter of the upper wide part (763); an upper gap (91) exists between the upper wide cavity (561) and an upper wide part (763) positioned in the upper wide cavity, a middle gap (92) exists between the middle cone cavity (562) and a middle cone part (762) positioned in the middle cone cavity, a lower gap (93) exists between the lower narrow cavity (563) and a lower narrow part (761) positioned in the middle cone cavity, and the upper gap (91), the middle gap (92) and the lower gap (93) are communicated with each other to form a clamping gap (9).
7. The electric only commercial vehicle powertrain suspension system of claim 6, wherein: the cross sections of the upper wide cavity (561), the lower narrow cavity (563), the upper wide part (763) and the lower narrow part (761) are all rectangular, and the cross sections of the middle cone cavity (562) and the middle cone part (762) are all trapezoids with the upper wide part and the lower narrow part; the size of the clamping gap (9) is 7-15 mm.
8. Method for assembling a suspension system for a power train of a purely electric commercial vehicle according to claim 1 or 2, characterized in that it comprises the following steps:
during assembly, the inner unit and the outer unit are assembled at the same time, then the power assembly (1) is assembled, then the front suspension cushion assembly (4) and the front suspension bracket (3) are vertically fastened and connected, the rear suspension bracket (82) and the rear suspension cushion assembly (83) are vertically fastened and connected, and the assembly can be completed after the connection;
the assembly of the internal unit means: the front suspension bracket (21) is connected with the front end of the power assembly (1), the rear suspension bracket (82) is connected with the rear end of the power assembly (1), and then the front suspension bracket (21) is vertically fastened and connected with the front suspension cushion assembly (4);
the assembly of the external unit means: the front suspension bracket (3) and the rear suspension cushion assembly (83) are respectively connected with the frame longitudinal beam (13).
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107878169A (en) * | 2017-11-30 | 2018-04-06 | 苏州奥杰汽车技术股份有限公司 | A kind of high automobile motor system suspending apparatus of bonding strength |
| CN107984998B (en) * | 2017-12-28 | 2023-05-12 | 东风商用车有限公司 | Independent suspension front axle assembly for commercial vehicle |
| CN108909836B (en) * | 2018-08-10 | 2023-11-24 | 深圳市德塔防爆电动汽车有限公司 | Thin-layer electric automobile and frame system thereof |
| 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 |
| CN112483631B (en) * | 2020-11-06 | 2021-11-26 | 安徽江淮汽车集团股份有限公司 | Connection structure and transmission |
| CN112721602B (en) * | 2021-02-22 | 2022-07-05 | 东风商用车有限公司 | Power assembly suspension system |
| CN114194012A (en) * | 2021-12-17 | 2022-03-18 | 东风襄阳旅行车有限公司 | New energy automobile driving motor suspension structure |
| CN114454704B (en) * | 2022-01-18 | 2023-08-04 | 东风汽车股份有限公司 | Rear suspension cushion assembly for large-torque output power assembly |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5385369A (en) * | 1992-05-09 | 1995-01-31 | Mazda Motor Corporation | Vehicle having structure for fitting suspension to vehicle body |
| JP2012096557A (en) * | 2010-10-29 | 2012-05-24 | Mazda Motor Corp | Structure for mounting component in motor room of electric vehicle |
| CN104118307A (en) * | 2013-12-19 | 2014-10-29 | 东风柳州汽车有限公司 | Automobile power assembly suspension device |
| CN104260629A (en) * | 2014-09-19 | 2015-01-07 | 南京金龙客车制造有限公司 | Automobile driving motor suspension structure |
| CN105186767A (en) * | 2015-08-15 | 2015-12-23 | 安徽安凯汽车股份有限公司 | Electric motor coach driving motor suspending system and installation method thereof |
| CN106114174A (en) * | 2016-06-30 | 2016-11-16 | 合肥创智汽车技术开发有限公司 | A kind of novel motor suspension installation structure |
| CN106427509A (en) * | 2016-11-01 | 2017-02-22 | 广州电力机车有限公司 | Sanitation vehicle motor installing structure |
| CN206155137U (en) * | 2016-11-15 | 2017-05-10 | 安徽江淮汽车集团股份有限公司 | Van power suspension assembly |
| CN206938429U (en) * | 2017-07-13 | 2018-01-30 | 东风商用车有限公司 | A kind of pure electric commercial vehicle powertrain mounting system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4367077B2 (en) * | 2003-10-09 | 2009-11-18 | 日産自動車株式会社 | Drive motor mounting structure |
-
2017
- 2017-07-13 CN CN201710571540.9A patent/CN107344489B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5385369A (en) * | 1992-05-09 | 1995-01-31 | Mazda Motor Corporation | Vehicle having structure for fitting suspension to vehicle body |
| JP2012096557A (en) * | 2010-10-29 | 2012-05-24 | Mazda Motor Corp | Structure for mounting component in motor room of electric vehicle |
| CN104118307A (en) * | 2013-12-19 | 2014-10-29 | 东风柳州汽车有限公司 | Automobile power assembly suspension device |
| CN104260629A (en) * | 2014-09-19 | 2015-01-07 | 南京金龙客车制造有限公司 | Automobile driving motor suspension structure |
| CN105186767A (en) * | 2015-08-15 | 2015-12-23 | 安徽安凯汽车股份有限公司 | Electric motor coach driving motor suspending system and installation method thereof |
| CN106114174A (en) * | 2016-06-30 | 2016-11-16 | 合肥创智汽车技术开发有限公司 | A kind of novel motor suspension installation structure |
| CN106427509A (en) * | 2016-11-01 | 2017-02-22 | 广州电力机车有限公司 | Sanitation vehicle motor installing structure |
| CN206155137U (en) * | 2016-11-15 | 2017-05-10 | 安徽江淮汽车集团股份有限公司 | Van power suspension assembly |
| CN206938429U (en) * | 2017-07-13 | 2018-01-30 | 东风商用车有限公司 | A kind of pure electric commercial vehicle powertrain mounting system |
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