CN113696971B - Frame of electric motor coach - Google Patents

Frame of electric motor coach Download PDF

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Publication number
CN113696971B
CN113696971B CN202110994011.6A CN202110994011A CN113696971B CN 113696971 B CN113696971 B CN 113696971B CN 202110994011 A CN202110994011 A CN 202110994011A CN 113696971 B CN113696971 B CN 113696971B
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China
Prior art keywords
longitudinal
frame
special
section
section frame
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CN202110994011.6A
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Chinese (zh)
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CN113696971A (en
Inventor
张迪
高嘉利
陈国华
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Zhejiang CRRC Electric Vehicle Co Ltd
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Zhejiang CRRC Electric Vehicle Co Ltd
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Application filed by Zhejiang CRRC Electric Vehicle Co Ltd filed Critical Zhejiang CRRC Electric Vehicle Co Ltd
Priority to CN202110994011.6A priority Critical patent/CN113696971B/en
Priority to PCT/CN2021/126133 priority patent/WO2023024237A1/en
Publication of CN113696971A publication Critical patent/CN113696971A/en
Priority to PCT/CN2022/101727 priority patent/WO2023024689A1/en
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Publication of CN113696971B publication Critical patent/CN113696971B/en
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    • 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
    • B62D21/02Understructures, i.e. chassis frame on which a vehicle body may be mounted comprising longitudinally or transversely arranged frame members

Abstract

The invention discloses a frame of an electric motor coach, which comprises: front axle section frame includes: two first longitudinal support members and a plurality of first transverse support members; the middle section frame is connected with one end of the front axle section frame; rear axle section frame, its with the middle section frame is kept away from the one end of front axle section frame is connected, rear axle section frame includes: and two sides of the frame are respectively provided with the second longitudinal supporting component and the second transverse supporting component. According to the double-layer support structure, the double-layer support structure is formed in the front axle section frame and the rear axle section frame, so that the bearing capacity is improved; in the middle section frame, set up the dysmorphism slotted hole on the support body, and this dysmorphism slotted hole falls into first groove section and second groove section, and the nut of dysmorphism bolt gets into from first groove section to slidable offsets to with the second groove section, realizes the fastening and does not become flexible.

Description

Frame of electric motor coach
Technical Field
The invention relates to the technical field of new energy automobiles, in particular to a frame of an electric motor coach.
Background
Compared with fuel vehicles, new energy vehicles such as electric buses and the like have the advantages that a large number of battery packs are added to provide energy, so that the weight of the whole vehicle is greatly increased, and the cruising ability and the load carrying ability of the electric buses are seriously affected; meanwhile, the arrangement of the battery pack also increases the load of the frame, and the strength of a plurality of connecting parts on the frame is insufficient.
Disclosure of Invention
In view of the above-mentioned shortcomings in the prior art, the present invention provides a frame of an electric motor coach for solving the above-mentioned problems.
The technical scheme adopted by the invention for solving the technical problem is that the frame of the electric motor coach comprises:
front axle section frame includes: the two sides of the frame are respectively provided with one first longitudinal support assembly, and the first longitudinal support assemblies comprise a first longitudinal beam and a second longitudinal beam which are arranged side by side along the height direction; an accommodating space is formed between the two first longitudinal support assemblies; the plurality of first transverse supporting assemblies are arranged between the two first longitudinal supporting assemblies and divide the accommodating space into a first installing space and a second installing space; the first lateral support assembly comprises one or more cross beams;
the middle section frame is connected with one end of the front axle section frame;
rear axle section frame, its with the middle section frame is kept away from the one end of front axle section frame is connected, rear axle section frame includes: two longitudinal support assembly of second, the both sides of frame set up one respectively the longitudinal support assembly of second, the longitudinal support assembly of second includes: the first vertical rod and the second vertical rod are arranged in an overlapped mode along the height direction; the reinforcing plate is fixedly connected to the first longitudinal rod and the second longitudinal rod at the same time; and the second transverse supporting component comprises a plurality of cross rods which are parallel to each other, and two ends of each cross rod are fixedly connected with one second longitudinal supporting component respectively.
Furthermore, a third longitudinal beam is further arranged on one side, away from the other first longitudinal beam, of any one first longitudinal beam, and the third longitudinal beam is parallel to the first longitudinal beam.
Further, the first stringer is above the second stringer;
and a reinforcing beam is further arranged, one end of the reinforcing beam is connected with the second longitudinal beam, and the other end of the reinforcing beam is connected with the third longitudinal beam.
Further, the middle section frame includes: the rack body is provided with a plurality of special-shaped slotted holes, each special-shaped slotted hole comprises a first slot section and a second slot section, and the first slot sections are communicated with the second slot sections; the bracket is connected with the frame body through a special-shaped bolt, and a nut of the special-shaped bolt can enter the special-shaped slotted hole from the first slot section and abut against the second slot section.
Further, the width of the first groove segment is greater than the width of the second groove segment;
the width of a nut of the special-shaped bolt is smaller than the length of the special-shaped bolt, and the length of the special-shaped bolt is smaller than or equal to the width of the first groove section.
Furthermore, the frame body is formed by splicing a plurality of hollow square tubes, and each square tube is provided with an upper inner wall and a lower inner wall which are positioned at opposite sides;
the nut of the special-shaped bolt is arranged in a parallelogram shape, and the length of the nut of the special-shaped bolt is larger than or equal to the distance between the upper inner wall and the lower inner wall.
Further, the first longitudinal rod is positioned right above the second longitudinal rod;
and a third longitudinal rod is arranged on one side, away from the other first longitudinal rod, of any one first longitudinal rod, and the third longitudinal rod is parallel to the first longitudinal rod.
Furthermore, the second vertical pole is kept away from one side of first vertical pole still the rigid coupling has two leaf spring mounting panels, two have the space that is used for holding the rear axle between the leaf spring mounting panel.
Furthermore, still be equipped with a plurality of bearing diagonal poles, bearing diagonal pole's one end with leaf spring mounting panel rigid coupling, bearing diagonal pole's the other end with second vertical pole rigid coupling.
And the tail section frame is connected with one end, far away from the middle section frame, of the rear axle section frame.
Compared with the prior art, the invention has at least the following beneficial effects:
1. in the front axle section frame, the first longitudinal beam and the second longitudinal beam in the longitudinal support assembly are arranged side by side along the height direction, so that the first longitudinal beam and the second longitudinal beam form a double-layer support structure, and the bearing capacity is improved. Simultaneously, have accommodation space between two vertical supporting component, horizontal supporting component still can divide accommodation space and regular when playing the supporting role, and then improves space utilization.
2. In the rear axle section frame, a first longitudinal rod and a second longitudinal rod are arranged, and the two longitudinal rods form a double-layer supporting structure, so that the bending resistance of the rear axle section frame is improved; and then add the reinforcing plate simultaneously with two vertical poles rigid couplings for the wholeness of first vertical pole and second vertical pole is stronger, and then improves double-deck bearing structure's rigidity, further improves the anti bending property of rear axle section frame.
3. In the middle section frame, set up the dysmorphism slotted hole on the support body, and this dysmorphism slotted hole falls into first groove section and second groove section, the nut of special-shaped bolt gets into from first groove section to slidable offsets to with the second groove section, makes the nut of this special-shaped bolt as long as do not take place to slide, just can offset with the second groove section all the time, and then realizes that the fastening is not hard up.
4. The length of the nut of the special-shaped bolt is larger than or equal to the distance between the upper inner wall and the lower inner wall, so that after the special-shaped bolt rotates, two ends of the nut can respectively abut against the upper inner wall/the lower inner wall, the connection strength of the bolt connection part is further enhanced, and looseness is avoided.
Drawings
FIG. 1 is a schematic structural diagram of a frame of an electric motor coach in the embodiment;
FIG. 2 is a schematic structural view of a front axle section frame in the embodiment;
FIG. 3 is a schematic structural view of a middle frame in the embodiment;
FIG. 4 is a schematic structural view of a special-shaped bolt and a special-shaped slot in the embodiment;
FIG. 5 is a schematic structural diagram of a rear axle section frame in the embodiment;
FIG. 6 is a schematic view of the structure of FIG. 5 with the reinforcing plate removed;
in the figure:
100. a front axle section frame; 110. a first longitudinal beam; 120. a second stringer; 130. a third stringer; 140. a cross beam; 150. a reinforcing beam;
200. a middle frame; 210. a frame body; 211. a profiled slot; 211a, a first groove section; 211b, a second groove section; 220. a bracket; 230. a special-shaped bolt;
300. a rear axle section frame; 310. a first longitudinal bar; 320. a second longitudinal bar; 330. a third longitudinal bar; 340. a reinforcing plate; 350. a cross bar; 360. a plate spring mounting plate; 370. an inclined support rod;
400. a tail section vehicle frame.
Detailed Description
The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.
Referring to fig. 1 to 6, the present invention discloses a frame of an electric motor coach, including:
front axle section frame 100 includes: two first longitudinal support assemblies, wherein one first longitudinal support assembly is arranged on each of two sides of the frame, and each first longitudinal support assembly comprises a first longitudinal beam 110 and a second longitudinal beam 120 which are arranged side by side in the height direction; an accommodating space is formed between the two first longitudinal support assemblies; the plurality of first transverse supporting assemblies are arranged between the two first longitudinal supporting assemblies and divide the accommodating space into a first installing space and a second installing space; the first lateral support assembly includes one or more cross beams 140;
a middle frame 200 connected to one end of the front axle frame 100;
rear axle section frame 300, its with middle section frame 200 is kept away from the one end of front axle section frame 100 is connected, rear axle section frame 300 includes: two longitudinal support assembly of second, the both sides of frame set up one respectively the longitudinal support assembly of second, the longitudinal support assembly of second includes: a first vertical bar 310 and a second vertical bar 320 which are arranged to overlap in the height direction; the reinforcing plate 340, the reinforcing plate 340 being fixedly connected to the first longitudinal bar 310 and the second longitudinal bar 320 at the same time; and the second transverse supporting component comprises a plurality of cross bars 350 which are parallel to each other, and two ends of each cross bar 350 are fixedly connected with one second longitudinal supporting component respectively.
Specifically, in the front axle section frame 100, the first longitudinal beam 110 and the second longitudinal beam 120 in the longitudinal support assembly are arranged side by side in the height direction, so that the first longitudinal beam 110 and the second longitudinal beam 120 form a double-layer support structure, and the load-bearing capacity is improved. Simultaneously, have accommodation space between two vertical supporting component, horizontal supporting component when playing the supporting role, still can separate and regular accommodation space, and then improve space utilization.
The first longitudinal beam 110 and the second longitudinal beam 120 are arranged side by side in a height direction, wherein the height direction means that the height direction is a vertical direction when the working surface is horizontal, i.e. the first longitudinal beam 110 is directly above or below the second longitudinal beam 120.
In the rear axle section frame 300, firstly, a first longitudinal rod 310 and a second longitudinal rod 320 are arranged, and the two longitudinal rods form a double-layer supporting structure, so that the bending resistance of the rear axle section frame 300 is improved; and then, the reinforcing plate 340 is additionally arranged and is fixedly connected with the two longitudinal rods, so that the integrity of the first longitudinal rod 310 and the second longitudinal rod 320 is stronger, the rigidity of the double-layer supporting structure is further improved, and the bending resistance of the rear axle section frame 300 is further improved.
Further, a third longitudinal beam 130 is further disposed on a side of any one of the first longitudinal beams 110 away from the other first longitudinal beam 110, and the third longitudinal beam 130 is parallel to the first longitudinal beam 110.
The third longitudinal beam 130 is arranged to be parallel to the first longitudinal beam 110, so that the bearing capacity of the frame is further improved.
Further, the first longitudinal beam 110 is above the second longitudinal beam 120; specifically, the upper surfaces of the first longitudinal beam 110 and the third longitudinal beam 130 are flush to form a larger plane, so as to increase the contact area between the front axle frame 100 and the upper component, thereby improving the load-bearing capacity thereof.
A reinforcing beam 150 is further provided, and one end of the reinforcing beam 150 is connected to the second longitudinal beam 120, and the other end is connected to the third longitudinal beam 130.
The reinforcing beam 150 is provided such that the cross-sections of the first longitudinal beam 110, the second longitudinal beam 120 and the third longitudinal beam 130 form a triangular structure, which increases the rigidity of the entire longitudinal support assembly.
Further, the middle frame 200 includes: the rack body 210 is provided with a plurality of special-shaped slot holes 211, each special-shaped slot hole 211 comprises a first slot section 211a and a second slot section 211b, and the first slot section 211a is communicated with the second slot section 211 b; a plurality of brackets 220 for mounting batteries, wherein the brackets 220 are connected with the frame body 210 through shaped bolts 230, and nuts of the shaped bolts 230 can enter the shaped slotted holes 211 from the first slot segments 211a and abut against the second slot segments 211 b.
Specifically, the special-shaped slot 211 is disposed on the frame body 210, and the special-shaped slot 211 is divided into a first slot section 211a and a second slot section 211b, and the nut of the special-shaped bolt 230 enters from the first slot section 211a and can slide to abut against the second slot section 211b, so that the nut of the special-shaped bolt 230 can always abut against the second slot section 211b as long as the nut does not slide, and further the fastening is realized.
Further, the width of the first groove segment 211a is greater than the width of the second groove segment 211 b;
the width of the nut of the shaped bolt 230 is smaller than the length thereof, and the length of the shaped bolt 230 is smaller than or equal to the width of the first groove section 211 a.
Specifically, the width of the first slot segment 211a is greater than the width of the second slot segment 211b, so that the nut of the shaped bolt 230 can pass through the first slot segment 211a and abut against the second slot segment 211 b.
The width of the nut of the special-shaped bolt 230 is smaller than the length of the special-shaped bolt, and when the special-shaped bolt 230 slides to abut against the second groove section 211b, the special-shaped bolt 230 can be rotated, so that the contact area between the nut of the special-shaped bolt 230 and the second groove section 211b is increased, and the connection strength of the bolt connection part is enhanced.
Further, the frame body 210 is formed by splicing a plurality of hollow square tubes, each square tube having an upper inner wall and a lower inner wall at opposite sides;
the nut of the special-shaped bolt 230 is arranged in a parallelogram shape, and the length of the nut of the special-shaped bolt 230 is greater than or equal to the distance between the upper inner wall and the lower inner wall.
Specifically, the length of the nut of the special-shaped bolt 230 is greater than or equal to the distance between the upper inner wall and the lower inner wall, so that after the special-shaped bolt 230 rotates, two ends of the nut can respectively abut against the upper inner wall/the lower inner wall, the connection strength of the bolt connection part is further enhanced, and loosening is avoided.
Further, the first side rail 310 is located right above the second side rail 320;
a third side rail 330 is disposed on a side of any one of the first side rails 310 away from the other first side rail 310, and the third side rail 330 is parallel to the first side rail 310.
The third vertical rod 330 is parallel to the first vertical rod 310, so that the first vertical rod 310 and the third vertical rod 330 form a larger supporting surface, and the contact area between the rear axle section frame 300 and other parts is increased, so as to improve the load-bearing performance.
Further, one side of the second longitudinal bar 320, which is far away from the first longitudinal bar 310, is further fixedly connected with two plate spring mounting plates 360, and a space for accommodating a rear axle is arranged between the two plate spring mounting plates 360.
Specifically, according to the embodiment, the plate spring mounting plate 360 is arranged below the second longitudinal rod 320 and bears the load, and the plate spring mounting plate 360 can bear the load together with the second longitudinal rod 320/the first longitudinal rod 310 while playing a role of mounting the plate spring, so that the load bearing performance of the whole rear axle section frame 300 is further improved.
Further, still be equipped with a plurality of diagonal bracing pieces 370, the one end of diagonal bracing piece 370 with leaf spring mounting panel 360 rigid coupling, the other end of diagonal bracing piece 370 with second vertical pole 320 rigid coupling.
The inclined support rod 370 is arranged, so that the connection strength between the plate spring mounting plate 360 and the second longitudinal rod 320 is improved, and the bending resistance of the rear axle section frame 300 is further improved.
Further, a tail section frame 400 is further included, which is connected to an end of the rear axle section frame 300 away from the middle section frame 200.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
Moreover, descriptions of the present invention as relating to "first," "second," "a," etc. are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating a number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

Claims (7)

1. A frame of an electric motor coach is characterized by comprising:
front axle section frame includes: the two sides of the frame are respectively provided with one first longitudinal support assembly, and the first longitudinal support assemblies comprise a first longitudinal beam and a second longitudinal beam which are arranged side by side along the height direction; an accommodating space is formed between the two first longitudinal support assemblies; the plurality of first transverse supporting assemblies are arranged between the two first longitudinal supporting assemblies and divide the accommodating space into a first installing space and a second installing space; the first lateral support assembly comprises one or more cross-members;
the middle section frame is connected with one end of the front axle section frame; the middle section frame includes: the special-shaped slotted hole comprises a first slotted section and a second slotted section, and the first slotted section is communicated with the second slotted section; the bracket is connected with the frame body through special-shaped bolts, and nuts of the special-shaped bolts can enter the special-shaped slotted holes from the first slot sections and abut against the second slot sections;
the width of the first groove section is greater than the width of the second groove section; the width of a nut of the special-shaped bolt is smaller than the length of the special-shaped bolt, and the length of the nut of the special-shaped bolt is smaller than or equal to the width of the first groove section;
the frame body is formed by splicing a plurality of hollow square tubes, and each square tube is provided with an upper inner wall and a lower inner wall which are positioned at opposite sides;
the nut of the special-shaped bolt is arranged in a parallelogram shape, and the length of the nut of the special-shaped bolt is larger than or equal to the distance between the upper inner wall and the lower inner wall;
rear axle section frame, its with the middle section frame is kept away from the one end of front axle section frame is connected, rear axle section frame includes: two longitudinal support assembly of second, the both sides of frame set up one respectively the longitudinal support assembly of second, the longitudinal support assembly of second includes: the first vertical rod and the second vertical rod are arranged in an overlapped mode along the height direction; the reinforcing plate is fixedly connected to the first longitudinal rod and the second longitudinal rod at the same time; and the second transverse supporting component comprises a plurality of cross rods which are parallel to each other, and two ends of each cross rod are fixedly connected with one second longitudinal supporting component respectively.
2. The frame of the electric motor coach as claimed in claim 1, wherein a third longitudinal beam is further arranged on one side of any one first longitudinal beam far away from the other first longitudinal beam, and the third longitudinal beam is parallel to the first longitudinal beam.
3. The frame of an electric motor coach according to claim 2, wherein the first longitudinal beam is above the second longitudinal beam;
and a reinforcing beam is further arranged, one end of the reinforcing beam is connected with the second longitudinal beam, and the other end of the reinforcing beam is connected with the third longitudinal beam.
4. The frame of the electric motor coach as claimed in claim 1, wherein the first longitudinal bar is positioned right above the second longitudinal bar;
one side of any one of the first longitudinal rods, which is far away from the other first longitudinal rod, is provided with a third longitudinal rod, and the third longitudinal rod is parallel to the first longitudinal rods.
5. The frame of the electric motor coach as claimed in claim 1, wherein two leaf spring mounting plates are fixedly connected to one side, away from the first longitudinal rod, of the second longitudinal rod, and a space for accommodating a rear axle is formed between the two leaf spring mounting plates.
6. The frame of the electric motor coach as claimed in claim 5, wherein a plurality of inclined support rods are further provided, one ends of the inclined support rods are fixedly connected with the leaf spring mounting plate, and the other ends of the inclined support rods are fixedly connected with the second longitudinal rod.
7. The frame of the electric motor coach as claimed in any one of claims 1 to 6, further comprising a tail section frame connected to one end of the rear axle section frame, which is far away from the middle section frame.
CN202110994011.6A 2021-08-27 2021-08-27 Frame of electric motor coach Active CN113696971B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN202110994011.6A CN113696971B (en) 2021-08-27 2021-08-27 Frame of electric motor coach
PCT/CN2021/126133 WO2023024237A1 (en) 2021-08-27 2021-10-25 Electric-bus frame
PCT/CN2022/101727 WO2023024689A1 (en) 2021-08-27 2022-06-28 Frame of electric bus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110994011.6A CN113696971B (en) 2021-08-27 2021-08-27 Frame of electric motor coach

Publications (2)

Publication Number Publication Date
CN113696971A CN113696971A (en) 2021-11-26
CN113696971B true CN113696971B (en) 2022-07-19

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CN (1) CN113696971B (en)
WO (2) WO2023024237A1 (en)

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CN209441446U (en) * 2019-01-02 2019-09-27 中兴智能汽车有限公司 A kind of fuel battery passenger car long wheelbase chassis structure
CN210416746U (en) * 2019-04-04 2020-04-28 北京北方华德尼奥普兰客车股份有限公司 Electric full-bearing passenger car frame
CN210912616U (en) * 2019-08-02 2020-07-03 泉州蓝轩科技有限公司 Full-bearing frame structure of 12-meter pure electric bus
CN210660977U (en) * 2019-09-06 2020-06-02 浙江瑞利紧固件有限公司 Special-shaped square bolt
CN211731562U (en) * 2020-03-16 2020-10-23 厦门威迪思汽车设计服务有限公司 Logistics vehicle frame with modular structure
CN214028851U (en) * 2020-10-10 2021-08-24 浙江中车电车有限公司 Tail section frame structure
CN214028852U (en) * 2020-10-10 2021-08-24 浙江中车电车有限公司 Frame structure of rear axle section

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