CN105857398B - A kind of general-purpose type pure electric coach Undercarriage structure - Google Patents

A kind of general-purpose type pure electric coach Undercarriage structure Download PDF

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Publication number
CN105857398B
CN105857398B CN201610407426.8A CN201610407426A CN105857398B CN 105857398 B CN105857398 B CN 105857398B CN 201610407426 A CN201610407426 A CN 201610407426A CN 105857398 B CN105857398 B CN 105857398B
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China
Prior art keywords
truss
longitudiual
chassis
diagonal brace
transverse
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CN201610407426.8A
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Chinese (zh)
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CN105857398A (en
Inventor
那景新
纪俊栋
苏亮
吴长风
刘浩垒
杨佳宙
谭伟
慕文龙
袁正
王登峰
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Xiamen King Long United Automotive Industry Co Ltd
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Jilin University
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Publication of CN105857398A publication Critical patent/CN105857398A/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62DMOTOR VEHICLES; TRAILERS
    • B62D21/00Understructures, i.e. chassis frame on which a vehicle body may be mounted
    • B62D21/08Understructures, i.e. chassis frame on which a vehicle body may be mounted built up with interlaced cross members
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60KARRANGEMENT 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
    • B60K1/00Arrangement or mounting of electrical propulsion units
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60KARRANGEMENT 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
    • B60K1/00Arrangement or mounting of electrical propulsion units
    • B60K1/04Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60KARRANGEMENT 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
    • B60K1/00Arrangement or mounting of electrical propulsion units
    • B60K1/04Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
    • B60K2001/0405Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion characterised by their position

Abstract

Patent of the present invention is related to a kind of truss-like Undercarriage structure that can be applied to bearing-type and Non-carrying type pure electric coach simultaneously.The general-purpose type pure electric coach Undercarriage structure, it is divided into chassis leading portion (1), chassis stage casing (2), chassis back segment (3), the fixation diagonal brace (19) of the complete truss structure of chassis stage casing (2) use, its floor layer (12) and lower floor layer (13) is in interlaced arrangement.End in vehicle bridge (16) place longitudiual truss I (4) front and back end, longitudiual truss II, III (5), (6) are using the keel type structure through whole chassis, longitudiual truss VI (7) front and back ends in vehicle bridge (16) place end, center section car door mark time (17) place disconnect.For longitudiual truss III (6) using fixed diagonal brace (19), longitudiual truss I, II, VI (4), (5), (7) use pulling-on piece formula activity diagonal brace (14).

Description

A kind of general-purpose type pure electric coach Undercarriage structure
Technical field
Patent of the present invention is related to coach body structure design field, and in particular to one kind can be applied to bearing-type and non-simultaneously The truss-like Undercarriage structure of bearing-type pure electric coach.
Technical background
With the fast development of the trolley coach such as high ferro motor-car, long-distance highway passenger vehicle in parallel is gradually substituted, and The short-distance middle-bus sales volume accounting being complementary to rises year by year.It is and pure with the aggravation of global energy and environmental crisis Electric motor coach becomes primary study object due to having many advantages, such as.
The pure electric coach structural research in China at present is essentially all in traditional internal combustion also in a reduced levels Power assembly is replaced on the basis of passenger's bassinet structure and local modification is carried out to existing structure, so as to cause pure electric motor coach Car kerb weight is excessive, and further the course continuation mileage of electric motor coach is adversely affected.To meet making for different type car With requiring, monocoque body and separate frame construction have all been applied on different types of car.In monocoque body and non- Due to frock clamp can not be shared when welding during monocoque body assembles with chassis respectively and to Undercarriage structure, share Or partial sharing production platform, so as to cause the coach body structure design cycle to be grown, design and develop cost and increase considerably, enter one Step rises production cost.Therefore, with reference to the characteristics of power system for pure electric bus flexible arrangement, one is targetedly developed It is adapted to the body structure bottom platform of electric motor coach, is to solve electric motor coach lightweight problem, improve electric motor coach performance most Effective way.Based on this, a kind of bottom that can be applied to bearing-type and Non-carrying type pure electric coach vehicle body simultaneously is devised herein Frame structure.
The content of the invention
The present invention relates to a kind of pure electricity of general-purpose type that both can apply to monocoque body and can and be applied to separate frame construction Dynamic underframe of coach structure.
With reference to accompanying drawing, it is described as follows:
A kind of general-purpose type pure electric coach Undercarriage structure, including chassis leading portion, chassis stage casing, chassis back segment;
The chassis stage casing 2 is by longitudiual truss I 4, longitudiual truss II 5, longitudiual truss III 6, longitudiual truss VI 7 and horizontal purlin Frame I 8, transverse truss II 9, transverse truss III 10, transverse truss VI 11 are formed, and by intersecting in longitudiual truss and transverse truss The space structure that the column 15 that place is set connects into forms floor layer 12 and lower floor layer 13;
The chassis back segment 3 is by longitudiual truss V 23, longitudiual truss VI 24, longitudiual truss VII 25, the and of longitudiual truss VIII 26 Transverse truss V 31, transverse truss VI 32 are formed, wherein longitudiual truss V 23, longitudiual truss VI 24 and transverse truss V 31, horizontal stroke Battery flat 29 is surrounded to truss VI 32;
The described front and back end of longitudiual truss I 4 is ended at vehicle bridge 16, and longitudiual truss II 5, longitudiual truss III 6, which use, to be run through The keel type structure of whole chassis, the front and back end of longitudiual truss VI 7 are ended at vehicle bridge 16, and center section is marked time in car door breaks at 17 Open;
The longitudiual truss III 6 sets fixed diagonal brace 19 and is in wavy arrangement, other longitudiual truss I 4, longitudiual truss II 5th, longitudiual truss VI 7 sets pulling-on piece formula activity diagonal brace 14;
The transverse truss II 9, transverse truss III 10, which are provided with from one end of column, pulls to consolidating for the adjacent upright posts other end Determine diagonal brace 19, and be in wavy arrangement;
Crossbeam 30 is set at VI 32 350~400mm of bottom middle-range transverse truss of described battery flat 29, and bottom is provided with The fixation diagonal brace 19 of longitudiual truss VI 24 and the junction of crossbeam 30 is pulled to from the front end of longitudiual truss V 23, the top layer of battery flat 29 is provided with The fixation diagonal brace 19 of the rear end of longitudiual truss V 23 is pulled to from the front end of longitudiual truss VI 24, the left side of battery flat 29 is provided with from truss front end Upper angle is pulled to the unidirectional pulling-on piece formula activity diagonal brace 14 of truss rear end inferior horn;
Right side battery cabin structure is arranged symmetrically with left side battery flat 29 in chassis back segment 3;
The longitudiual truss VI 24, which is provided with to penetrate to motor support frame 27 and the motor of truss junction from front end column, pacifies Loading board 28, also there is on longitudiual truss VII 25 identical structure to arrange;
The Undercarriage structure can be by changing the wall thickness of carrier bar on the basis of its appearance profile size is not changed simultaneously Suitable for monocoque body and separate frame construction, because chassis appearance profile size is identical, frock clamp can be shared, is shared Production platform, reduce production cost.
The Undercarriage structure can be by changing the wall thickness of carrier bar on the basis of its appearance profile size is not changed simultaneously Suitable for monocoque body and separate frame construction, because chassis appearance profile size is identical, frock clamp can be shared, is shared Production platform, reduce production cost.
The pulling-on piece formula activity diagonal brace 14 is fixed by two steel pulling-on pieces 20 arranged in x-shape interlock and with Type of Welding The connection sheet 21 circular in a quarter and connecting bolt 22 at truss frame corner form.
The floor layer 12 is marked time in addition to 17 except car door, is all provided with wavy fixed diagonal brace 19, lower floor layer in horizontal plane 13 also are provided with fixing diagonal brace 19 and are in interlaced arrangement with the fixation diagonal brace 19 of floor layer 12.
The transverse truss I 8 of chassis stage casing 2 is at 110~115mm of upper end floor beam lower plane that distance is connected with column 15 If a crossbeam, also there is identical structure to arrange on transverse truss VI 11.
The distance between described adjacent transverse truss of chassis stage casing 2 is between 800~850mm;Between adjacent longitudiual truss Distance between 650~750mm.
Crossbeam 30 is set at the VI 32 350~400mm of bottom middle-range transverse truss of battery flat 29, and battery flat 29 exists Symmetrical arrangement in chassis back segment 3.
General-purpose type Undercarriage structure, while it is applied to bearing type passenger car vehicle body and Non-carrying type bus body, if bearing-type Bus body, then in chassis in addition to diagonal brace carrier bar selection relatively thick, such as 3~4mm;If Non-carrying type passenger car Body, then carrier bar in addition to diagonal brace selects smaller wall thickness, such as 2~2.5mm in chassis.
Beneficial effects of the present invention:
1. truss-like Undercarriage structure of the invention can be by changing section rod member wall thickness, while is applied to monocoque body And separate frame construction;Because chassis appearance profile size is identical, frock clamp can be shared, shares production platform, reduces production Cost;
2. set pulling-on piece formula activity oblique on the longitudiual truss I 4, longitudiual truss II 5, longitudiual truss VI 7 in chassis stage casing 2 Support, serve the effect for reinforcing vehicle body increase bus body strength and rigidity again while battery case dismounting is not influenceed.After chassis The longitudiual truss V 23 of section 3, the single pulling-on piece formula activity diagonal brace set on longitudiual truss VIII 26 are more favourable while vehicle body is reinforced In body lightening;
3. battery management system and most of battery arrangement are in the most strong stage casing of chassis bearing capacity, motor and small part electricity Pond is arranged in chassis back segment, and axle load distribution is reasonable, and the change of position of centre of gravity is influenceed smaller by occupant.
Brief description of the drawings
Fig. 1 is chassis overall structure axonometric drawing;
Fig. 2 is chassis overall structure side view;
Fig. 3 is chassis overall structure top view and battery and battery management system layout drawing;
Fig. 4 is chassis stage casing longitudiual truss schematic diagram;
Fig. 5 is chassis stage casing transverse truss schematic diagram;
Fig. 6 is chassis back segment longitudiual truss schematic diagram;
Fig. 7 is chassis back segment transverse truss schematic diagram;
Fig. 8 is detachable pulling-on piece formula activity diagonal brace schematic diagram in chassis middle section structure.
In figure:1st, chassis leading portion 2, chassis stage casing 3, chassis back segment 4~7, longitudiual truss I, longitudiual truss
IIth, longitudiual truss III, longitudiual truss VI 8~11, transverse truss I, transverse truss II, transverse truss III, horizontal purlin Frame VI 12, floor layer 13, lower floor layer 14, pulling-on piece formula activity diagonal brace 15, column 16, vehicle bridge 17, car door mark time 18, The bottom longeron 19 of longitudiual truss VI, fixed diagonal brace 20, pulling-on piece 21, connection sheet 22, connecting bolt 23~26, longitudinal purlin Frame V, longitudiual truss VI, longitudiual truss VII, longitudiual truss VIII 27, motor support frame 28, motor mounting plate 29, battery flat 30th, crossbeam 31~32, transverse truss V, transverse truss VI
Embodiment
In order that this organization plan is clearer, carrying pure electronic mini-bus Undercarriage structure entirely herein with a 6.84 meters makes Illustrate:
A kind of general-purpose type pure electric coach Undercarriage structure, chassis are the truss structure being welded by rectangular steel pipe, its Including chassis leading portion 1, chassis stage casing 2, the chassis back segment 3 being sequentially connected along the longitudinal direction.
The chassis leading portion 1 includes three and is connected with each other and parallel to the transverse truss knot of vehicle body coordinate system yoz coordinate surfaces Structure and propons.
The chassis stage casing 2 by longitudiual truss I 4, longitudiual truss II 5, longitudiual truss III 6, longitudiual truss VI 7 and parallel to Transverse truss I 8, transverse truss II 9, transverse truss III 10, the transverse truss VI 11 of yoz coordinate planes are formed, adjacent transverse purlin The distance between frame can between 800~850mm, in chassis stage casing 2 the distance between adjacent longitudiual truss can 650~ Between 750mm.For upper and lower two layers, i.e., chassis stage casing 2 is divided:Floor layer 12, lower floor layer 13, by longeron between upper and lower two layers Connected with the column 15 of crossbeam junction.Longitudiual truss II 5, longitudiual truss III 6 in the middle part of chassis, which use, runs through whole bottom The keel type structure of frame, the front and back end of longitudiual truss I 4 on the left of chassis are ended at vehicle bridge 16, vertical on the right side of chassis End to the front and back end of truss VI 7 at vehicle bridge 16, center section is marked time disconnection at 17 in car door.
The floor layer 12 is marked time except car door and wavy fixed diagonal brace 19 is designed with 17, and lower floor layer 13 also is provided with solid Determine diagonal brace 19 and be in interlaced arrangement with the fixation diagonal brace 19 of floor layer 12.
Fixed diagonal brace 19 is set on the longitudiual truss III 6 and it is in wavy arrangement.
The chassis stage casing 2 is in addition to fixed diagonal brace 19 is set between longitudiual truss III 6 and each adjacent upright posts, remaining longitudinal purlin Pulling-on piece formula activity diagonal brace 14 is set between frame I 4, longitudiual truss II 5, longitudiual truss VI 7 and two adjacent upright.
The transverse truss II 9, transverse truss III 10, which are provided with from one end of column, pulls to consolidating for the adjacent upright posts other end Determine diagonal brace 19, and be in wavy arrangement.
The transverse truss I 8 sets a crossbeam at 110~115mm of upper end floor beam lower plane that distance is connected with column 15, Also identical structure arranges on transverse truss 11.
The pulling-on piece formula activity diagonal brace 14, mainly by two in the steel pulling-on piece 20 of x-shape interlock arrangement and with Type of Welding The connection sheet 21 circular in a quarter and connecting bolt 22 being fixed at truss frame corner are formed, and wherein connection sheet is arranged in The inner side of battery flat 29.
The chassis back segment 3 is by longitudiual truss V 23, longitudiual truss VI 24, longitudiual truss VII 25, the and of longitudiual truss VIII 26 Transverse truss V 31, transverse truss VI 32 are formed.Wherein longitudiual truss V 23, longitudiual truss VI 24 and transverse truss V 31, horizontal stroke Battery flat 29 is surrounded to truss VI 32.
Crossbeam 30 is set at VI 32 350~400mm of bottom middle-range transverse truss of the battery flat 29, and set in bottom There is the fixation diagonal brace 19 that longitudiual truss VI 24 and the junction of crossbeam 30 are pulled to from the front end of longitudiual truss V 23, in the top layer of battery flat 29 Provided with the fixation diagonal brace 19 that the rear end of longitudiual truss V 23 is pulled to from the front end of longitudiual truss VI 24.Longitudiual truss V 23 is provided with from purlin Angle is pulled to the unidirectional pulling-on piece formula activity diagonal brace 14 of truss rear end inferior horn on frame front end.Battery flat 29 in chassis back segment 3 is the bottom of on Frame longitudinal median plane is symmetrically arranged.
The chassis back segment 3 includes back axle, motor support frame 27 and is welded in longitudiual truss VI 24, on longitudiual truss VII 25 Motor mounting plate 28.
The motor mounting plate 28, which is penetrated at the front end column of longitudiual truss VI 24 to motor support frame 27 and truss, to be connected Place is met, also has identical structure to arrange on longitudiual truss VII 25.
The general-purpose type Undercarriage structure, while it is applied to bearing type passenger car vehicle body and Non-carrying type bus body.If holding Load formula bus body, then body frame structure for automotive pipe fitting may be selected relatively thick, such as 3~4mm;If Non-carrying type bus body, then car Smaller wall thickness may be selected in frame structure pipe fitting, such as 2~2.5mm.
It is as shown in figure 1, pure electronic according to general-purpose type pure electric coach Undercarriage structure scheme proposed by the present invention, the general-purpose type Underframe of coach structure is the truss structure being welded by rectangular steel pipe, after it includes chassis leading portion 1, chassis stage casing 2, chassis Section 3, its width is 2240mm.Chassis leading portion 1 is connected with each other by three and parallel to the transverse direction of vehicle body coordinate system yoz coordinate surfaces Truss and propons are formed, and its length is 1560mm.Chassis stage casing 2 is designed to double-deck truss structure, its by longitudiual truss with The column 15 of transverse truss intersection is vertically connected with, and the height of column is 330mm.Longitudiual truss VI 7 is in transverse truss II 9, horizontal stroke Disconnected to truss III 10, middle part marks time 17 provided with car door, and marks time and marked time for two level.The length in chassis stage casing 2 is 2650mm.For strengthen chassis structural strength, longitudiual truss II 5, longitudiual truss III 6 upper longeron from chassis leading portion 1 penetrate to Chassis back segment 3.To weaken the intensity requirement to car door side body side wall structural member, the longitudiual truss III 6 close to car door side The upper fixed diagonal brace 19 using in wavy arrangement.It is strong for convenience of the structure installed with dismounting while take into account truss again of battery Degree, longitudiual truss I 4, longitudiual truss II, pulling-on piece formula activity diagonal brace 14 is used on longitudiual truss VI 7.Longitudiual truss I 4 and longitudinal purlin The distance between frame II 5 and the distance between longitudiual truss III 6 and longitudiual truss VI 7 are 655mm, and longitudiual truss II 5 is with indulging It is 750mm to the distance between truss III 6.To ensure the bearing capacity in chassis stage casing, on transverse truss I 8 away from column 15 A crossbeam is set at connected upper end floor beam lower plane 115mm, also has identical structure to arrange on transverse truss 11.Transverse truss II 9 On be provided with the fixation diagonal brace 19 that the adjacent upright posts other end is pulled to from one end of column, the diagonal brace is in wavy arrangement, horizontal purlin Also identical structure arranges on frame III 10.Fore-and-aft distance between transverse truss I 8 and transverse truss II 9 is 843mm, horizontal purlin The fore-and-aft distance between fore-and-aft distance and transverse truss III 10 and transverse truss VI 11 between frame 9 II and transverse truss III 10 is equal For 828mm.Fixed diagonal brace 19 is set in lower floor layer 13 between each longitudiual truss, and undulate is arranged.Floor layer 12 In in addition to car door is marked time and is not set diagonal brace 19 at 17, other positions are provided with to be consolidated with the interlaced arrangement of fixation diagonal brace 19 of lower floor layer 13 Determine diagonal brace 19.
Pulling-on piece formula activity diagonal brace 14 as shown in Figure 8, by two in the steel pulling-on piece 20 of X-type cross arrangement and to weld shape Formula is fixed on being formed in the connection sheet 21 and four pieces of connecting bolts 22 of a quarter circle at truss frame corner.Wherein pulling-on piece 20 Width be 30mm, thickness 3mm, length dimension can be depending on the specific size of corresponding truss.The radius ruler of connection sheet 21 Very little is 85mm, thickness 3mm, and connection sheet is arranged in the inner side of battery flat 29.
The length of chassis back segment 3 is 2630mm, in longitudiual truss V 23, longitudiual truss VI 24 and transverse truss V 31, horizontal stroke To the bottom of battery flat 29 that truss VI 32 is surrounded away from setting crossbeam 30 at the 350mm of transverse truss VI 24.The bottom of battery flat 29 is set There is the fixation diagonal brace 19 that longitudiual truss VI 24 and the junction of crossbeam 30 are pulled to from the front end of longitudiual truss V 23, the top layer of battery flat 29 is set There is the fixation diagonal brace 19 that the rear end of longitudiual truss V 23 is pulled to from the front end of longitudiual truss VI 24.The left side of battery flat 29 is provided with before truss End upside is pulled to the one-way movable diagonal brace 14 on the downside of truss with the junction of crossbeam 30.In chassis back segment 3 right side battery cabin structure with Left side battery flat 29 is arranged symmetrically.For convenience of the installation of motor, longitudiual truss VI 24 is provided with and penetrated at the column of front end to electricity The motor mounting plate 28 of machine support frame 27 and truss junction, the thickness of motor mounting plate 28 are 3mm, on longitudiual truss III 25 There is identical structure to arrange.
The arrangement of battery pack and control system is as shown in figure 3, battery pack is arranged in chassis stage casing and back segment (with capitalization B is identified), battery management system is arranged in chassis stage casing and (identified at rear axle with capital C), after motor is arranged in chassis Section (being identified with capital M).
Because body structure may also participate in carrying on bearing type passenger car, so as to which part mitigates the load of chassis, so removing Relatively thin wall thickness is may be selected in the main transverse and longitudinal beam of participation carrying beyond diagonal brace, and 2mm is selected in this wall thickness.

Claims (6)

1. a kind of general-purpose type pure electric coach Undercarriage structure, including chassis leading portion, chassis stage casing, chassis back segment, it is characterised in that:
The chassis stage casing (2) by longitudiual truss I (4), longitudiual truss II (5), longitudiual truss III (6), longitudiual truss VI (7) and Transverse truss I (8), transverse truss II (9), transverse truss III (10), transverse truss VI (11) are formed, and by longitudiual truss The space structure that the column (15) set with transverse truss intersection connects into forms floor layer (12) and lower floor layer (13);
The chassis back segment (3) is by longitudiual truss V (23), longitudiual truss VI (24), longitudiual truss VII (25), longitudiual truss VIII (26) formed with transverse truss V (31), transverse truss VI (32), wherein longitudiual truss V (23), longitudiual truss VI (24) and horizontal stroke Battery flat (29) is surrounded to truss V (31), transverse truss VI (32);
Described longitudiual truss I (4) front and back end is ended at vehicle bridge (16) place, and longitudiual truss II (5), longitudiual truss III (6) use Through the keel type structure of whole chassis, longitudiual truss VI (7) front and back end is ended at vehicle bridge (16) place, and center section is stepped in car door (17) place is walked to disconnect;
The longitudiual truss III (6) sets fixed diagonal brace (19) and is in wavy arrangement, other longitudiual truss I (4), longitudiual truss II (5), longitudiual truss VI (7) set pulling-on piece formula activity diagonal brace (14);
The transverse truss II (9), transverse truss III (10), which are provided with from one end of column, pulls to consolidating for the adjacent upright posts other end Determine diagonal brace (19), and be in wavy arrangement;
Crossbeam (30) is set at (32) 350~400mm of bottom middle-range transverse truss VI of described battery flat (29), and bottom is provided with The fixation diagonal brace (19) of longitudiual truss VI (24) and crossbeam (30) junction, battery flat are pulled to from longitudiual truss V (23) front end (29) top layer is provided with the fixation diagonal brace (19) that longitudiual truss V (23) rear end is pulled to from longitudiual truss VI (24) front end, battery flat (29) left side is provided with the unidirectional pulling-on piece formula activity diagonal brace (14) that truss rear end inferior horn is pulled to from angle on truss front end;
Right side battery cabin structure is arranged symmetrically with left side battery flat (29) in chassis back segment (3);
The longitudiual truss VI (24), which is provided with to penetrate to motor support frame (27) and the motor of truss junction from front end column, pacifies Loading board (28), also there is on longitudiual truss VII (25) identical structure to arrange;
The general-purpose type Undercarriage structure is applied to bearing type passenger car vehicle body and Non-carrying type bus body simultaneously, if bearing type passenger car Vehicle body, then the wall thickness of the carrier bar in chassis in addition to diagonal brace can be 3~4mm;If Non-carrying type bus body, then in chassis The wall thickness of carrier bar in addition to diagonal brace can be 2~2.5mm.
A kind of 2. general-purpose type pure electric coach Undercarriage structure according to claim 1, it is characterised in that:The pulling-on piece formula is lived Dynamic diagonal brace (14) is to be fixed on truss frame corner by two steel pulling-on pieces (20) arranged in x-shape interlock and with Type of Welding In the circular connection sheet (21) of a quarter and connecting bolt (22) composition.
A kind of 3. general-purpose type pure electric coach Undercarriage structure according to claim 1, it is characterised in that:The floor layer (12) except car door is marked time in addition to (17), wavy fixed diagonal brace (19) is designed with, lower floor layer (13) also is provided with fixing diagonal brace (19) it is in and with the fixation diagonal brace (19) of floor layer (12) interlaced arrangement.
A kind of 4. general-purpose type pure electric coach Undercarriage structure according to claim 1, it is characterised in that:The chassis stage casing (2) transverse truss I (8) sets a crossbeam at 110~115mm of upper end floor beam lower plane that distance is connected with column (15), laterally Also identical structure arranges on truss VI (11).
A kind of 5. general-purpose type pure electric coach Undercarriage structure according to claim 1, it is characterised in that:The chassis stage casing (2) the distance between adjacent transverse truss is between 800~850mm;The distance between adjacent longitudiual truss is in 650~750mm Between.
A kind of 6. general-purpose type pure electric coach Undercarriage structure according to claim 1, it is characterised in that:In the battery flat (29) crossbeam (30) is set at bottom middle-range transverse truss VI (32) 350~400mm, and battery flat (29) is in chassis back segment (3) Symmetrical arrangement.
CN201610407426.8A 2016-06-12 2016-06-12 A kind of general-purpose type pure electric coach Undercarriage structure Active CN105857398B (en)

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CN106476891B (en) * 2016-11-12 2018-09-28 杭州衡源汽车科技有限公司 Electric automobile chassis system
CN109911016B (en) * 2017-12-13 2020-10-02 湖南中车时代电动汽车股份有限公司 Bear new forms of energy passenger train tail section frame entirely
CN111591356A (en) * 2020-05-14 2020-08-28 长安大学 Triangular ring chain type vehicle body structure of full-bearing pure electric double-layer tourism bus
CN112977034A (en) * 2021-04-15 2021-06-18 一汽解放汽车有限公司 Battery installation unit, battery installation assembly and electric automobile

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CN202863555U (en) * 2012-01-19 2013-04-10 杨水平 Low-access and all-truss structured efficient electric motor coach chassis
CN103223981A (en) * 2013-05-12 2013-07-31 吉林大学 Low-floor total-load bearing type purely electric urban public bus body structure
CN205801244U (en) * 2016-06-12 2016-12-14 吉林大学 A kind of general-purpose type pure electric coach Undercarriage structure

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4950026A (en) * 1988-10-06 1990-08-21 Emmons J Bruce Passenger vehicle body frame
WO1993000230A1 (en) * 1991-06-28 1993-01-07 Robin Samuelsson Load carrier/load carrier body
CN202863555U (en) * 2012-01-19 2013-04-10 杨水平 Low-access and all-truss structured efficient electric motor coach chassis
CN103223981A (en) * 2013-05-12 2013-07-31 吉林大学 Low-floor total-load bearing type purely electric urban public bus body structure
CN205801244U (en) * 2016-06-12 2016-12-14 吉林大学 A kind of general-purpose type pure electric coach Undercarriage structure

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