CN115723848A - A frame assembly of a new energy commercial vehicle - Google Patents

Abstract

A frame assembly of a new energy commercial vehicle, which relates to the technical field of commercial vehicle frames. The technical solution is: it includes a right beam arranged symmetrically and parallelly along the central axis of the frame, and a cross beam is fixed between the right beam and the left beam stand. The beneficial effect of this technical solution is: using two side beams and each lateral support beam to wrap up the installation space of the battery, cooling system and high and low voltage system accessories of the new energy commercial vehicle, and solve the problem of the chassis under the existing traditional technical solution. Poor integrity, uneven distribution of the vehicle's center of gravity and hidden dangers in collision safety; the lateral support beam has an opening at the central axis of the frame, which reserves sufficient space for the layout of the vehicle's wiring harness and cooling water pipes, and solves the problem of The problem of insufficient space for wiring harness and cooling water pipes; in addition, a sunken side beam is designed at the front end of the frame to meet the needs of a low-entry cab.

Description

A frame assembly of a new energy commercial vehicle

technical field

The invention relates to the technical field of commercial vehicle frames, in particular to a frame assembly of new energy commercial vehicles.

Background technique

Commercial vehicles are the main road transportation equipment in my country. As the load-bearing base, the frame is the main component that carries all the sprung masses such as the body and cargo box. It bears complex static and dynamic loads. New energy will be the main development direction of commercial vehicles in the future. .

However, at present, the frames of new energy commercial vehicles in China are all improved on the basis of traditional frames. The integrity of the chassis is not strong, and the layout space for wiring harnesses and cooling water pipes is insufficient. The layout of power batteries and high and low voltage system accessories needs to be adapted to the frame. There are problems such as structure, uneven distribution of the center of gravity of the vehicle, and hidden dangers in collision safety. There is a lack of a frame assembly specifically for new energy commercial vehicles.

Contents of the invention

The purpose of the present invention is to overcome the deficiencies in the current commercial vehicle power battery and high and low voltage system accessories that need to adapt to the frame structure, uneven distribution of the center of gravity of the vehicle, and hidden dangers in collision safety, and propose a new energy commercial vehicle. Frame assembly.

In order to achieve the above object, the present invention adopts the following technical solutions:

A frame assembly of a new energy commercial vehicle, comprising a right beam and a left beam arranged symmetrically and parallelly along the central axis of the frame, a beam bracket is fixed between the right beam and the left beam, and the bottom of the beam bracket is set There are a plurality of longitudinal support beams arranged in parallel along the central axis of the vehicle frame, and a plurality of grooves for weight reduction are arranged on the longitudinal support beams. One end of the cross beam bracket is provided with a front bridge section frame. One end of the bracket away from the front axle frame is connected to the rear axle frame, and the crossbeam bracket includes a plurality of transverse support beams, the bottoms of the plurality of transverse support beams are connected with the longitudinal support beams, and the adjacent transverse support beams There is a certain distance between the support beams as the installation space for the vehicle equipment.

The longitudinal support beam supports the beam bracket, and at the same time divides the equipment that needs to be installed on the vehicle, so as to avoid equipment collision during use and affect the safety of the equipment.

Preferably, the beam bracket includes a first transverse support beam, a second transverse support beam, a third transverse support beam, a fourth transverse support beam and a fifth transverse support beam, the first transverse support beam and the second transverse support beam A cooling bin is set between the support beams, a battery compartment is set between the second and third transverse support beams and the third and fourth transverse support beams, and the fourth and fifth transverse support beams The high and low pressure system accessory compartment is arranged between the transverse support beams.

The first transverse support beam, the second transverse support beam, the third transverse support beam, the fourth transverse support beam and the fifth transverse support beam divide different parts to protect the parts and avoid collisions. The cooling chamber is used for The cooling system is arranged, the battery compartment is used to place the power battery, and the high and low voltage system accessory compartment is used to arrange the high and low voltage system accessories.

Preferably, the frame of the front axle section includes a first rectangular transverse tube beam of the front axle and a second rectangular transverse tube beam of the front axle, the rectangular transverse tube beam of the first front axle and the rectangular transverse tube beam of the second front axle The two ends are respectively connected to the right beam and the left beam through the front axle reinforcing beam, and the rectangular transverse pipe beam of the first front axle and the rectangular transverse pipe beam of the second front axle are jointly connected with the rectangular longitudinal pipe beam of the right front axle and the rectangular longitudinal pipe beam of the left front axle. The longitudinal pipe beam, the front independent suspension is connected between the rectangular longitudinal pipe beam of the right front axle and the rectangular longitudinal pipe beam of the left front axle.

The front independent suspension is fixed to the frame of the front bridge section through a plurality of bolt mounting holes of the rectangular longitudinal tube beam of the front axle.

Preferably, both ends of the right front axle rectangular longitudinal pipe girder and the left front axle rectangular longitudinal pipe girder are respectively connected to the first front axle rectangular transverse pipe girder and the second front axle rectangular transverse pipe girder through front axle reinforcing castings.

The reinforced castings of the front axle provide stable support for the rectangular longitudinal pipe beams of the right front axle and the rectangular longitudinal pipe beams of the left front axle, providing good supporting force.

Preferably, the frame of the rear axle section includes a first rectangular transverse tube beam of the rear axle and a second rectangular transverse tube beam of the rear axle. A rectangular longitudinal pipe beam of the right rear axle and a rectangular longitudinal pipe beam of the left rear axle are connected between them, and a rear leaf spring suspension is connected between the rectangular longitudinal pipe beam of the right rear axle and the rectangular longitudinal pipe beam of the left rear axle. Both ends of the rectangular transverse tube beam of the rear axle and the rectangular transverse tube beam of the second rear axle are connected with the right beam and the left beam through the rear axle reinforcement beam, and a tail beam is fixed between the right beam and the left beam, and the tail beam is far away from the first One end of the rectangular transverse pipe girder of the second rear axle.

The rear leaf spring suspension is installed on the rear axle section frame through the suspension mounting bracket.

Preferably, both ends of the rectangular longitudinal tube beam of the right rear axle and the rectangular longitudinal tube beam of the left rear axle are respectively connected to the first rectangular transverse tube beam of the rear axle and the second rectangular transverse tube beam of the rear axle through suspension mounting supports.

The suspension mounting support includes two limiting parts and a connecting part. The first rear axle rectangular transverse tube beam and the second rear axle rectangular transverse tube beam are located in the two limiting parts and are connected to the limiting parts by bolts.

Preferably, the right side beam is connected to the right sunken side beam through the right connecting plate, the left side beam is connected to the left sunken side beam through the left connecting plate, and the left sunken side beam and the right sunken side beam A first crossbeam and a second crossbeam are jointly installed between them, and a plurality of rectangular support beams arranged in parallel are connected between the first crossbeam and the second crossbeam.

The sunken side beam is designed to meet the requirements of the cab with a low entrance, and multiple rectangular support beams are arranged in parallel to increase the rigidity of the front frame.

Preferably, adjacent transverse support beams are connected to the longitudinal support beams through longitudinal fixing brackets.

Preferably, the two ends of the first transverse support beam, the second transverse support beam, the third transverse support beam, the fourth transverse support beam and the fifth transverse support beam are respectively connected to the right beam and the left side through a plurality of transverse fixing brackets. beam connection.

The horizontal fixing bracket firmly fixes the first horizontal support beam, the second horizontal support beam, the third horizontal support beam, the fourth horizontal support beam and the fifth horizontal support beam on the right beam and the left beam.

Preferably, both ends of the transverse support beam are respectively connected to the right beam and the left beam through a plurality of transverse fixing brackets.

Preferably, the heights of the second transverse support beam, the third transverse support beam and the fourth transverse support beam are the same, the height of the first transverse support beam and the fifth transverse support beam are lower than the height of the second transverse support beam, and the height of the first transverse support beam is lower than that of the second transverse support beam. The two front axle rectangular transverse pipe girders are located above the first transverse support beam, and the first rear axle rectangular transverse pipe beam is located above the fifth transverse support beam.

The dimensions of the first transverse support beam and the fifth transverse support beam are smaller than those of the other transverse support beams, and an installation space is reserved for the rectangular transverse tube beam of the second front axle and the rectangular transverse tube beam of the first rear axle.

Compared with the prior art, the beneficial effect of the present invention is that the battery, cooling system and high and low voltage system accessories installation space of the new energy commercial vehicle is packaged and arranged by using two side beams and each lateral support beam, which solves the problem of existing problems. Under the traditional technical scheme, the integrity of the chassis is not high, the center of gravity of the vehicle is unevenly distributed, and there are hidden dangers in collision safety; the transverse support beam is provided with an opening at the central axis of the frame, and the layout of the vehicle wiring harness and cooling water pipes is reserved. Sufficient space solves the problem of insufficient space for wiring harnesses and cooling water pipes; in addition, a sunken side beam is designed at the front end of the frame to meet the needs of a low-entry cab.

Description of drawings

In order to illustrate the technical solution of the present invention more clearly, the accompanying drawings that need to be used in the description will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. As far as people are concerned, other drawings can also be obtained based on these drawings on the premise of not paying creative work.

Fig. 1 is the structural representation of vehicle frame assembly in the specific embodiment of the present invention;

Fig. 2 is the structural representation of beam support in the specific embodiment of the present invention;

Fig. 3 is a schematic structural view of a sunken side beam in a specific embodiment of the present invention;

Fig. 4 is the structural representation of front axle section vehicle frame in the specific embodiment of the present invention;

Fig. 5 is the structural representation of rear axle section vehicle frame in the specific embodiment of the present invention;

Fig. 6 is a schematic diagram of the layout structure of the chassis in the specific embodiment of the present invention.

In the figure: 1 right beam, 2 left beam, 3 first transverse support beam, 4 second transverse support beam, 5 third transverse support beam, 6 fourth transverse support beam, 7 fifth transverse support beam, 8 tail beam, 9 Longitudinal support beam, 10 Horizontal fixed bracket, 11 Longitudinal fixed bracket, 12 Right sunken side beam, 13 Left sunken side beam, 14 Right connecting plate, 15 Left connecting plate, 16 First beam, 17 Second beam, 18 Rectangular support beam, 19 Rectangular transverse pipe beam of the first front axle, 20 Rectangular transverse pipe beam of the second front axle, 21 Rectangular longitudinal pipe beam of the right front axle, 22 Rectangular longitudinal pipe beam of the left front axle, 23 Reinforcing beam of the front axle, 24 Front axle Reinforced castings, 25 first rear axle rectangular transverse pipe beam, 26 second rear axle rectangular transverse pipe beam, 27 right rear axle rectangular longitudinal pipe beam, 28 left rear axle rectangular longitudinal pipe beam, 29 rear axle reinforcement beam, 30 suspension Mounting support, 31 cooling system, 32 power battery, 33 high and low voltage system accessories, 34 front independent suspension, 35 rear leaf spring suspension.

Detailed ways

In order to make the purpose, features and advantages of the present invention more obvious and understandable, the technical solutions in the present invention will be clearly and completely described below in conjunction with the accompanying drawings in this specific embodiment. Obviously, the implementation described below Examples are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in this patent, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this patent.

Referring to Figures 1-6, a frame assembly of a new energy commercial vehicle includes a right side beam arranged symmetrically and parallelly along the central axis of the frame, a crossbeam bracket is fixed between the right side beam 1 and the left side beam 2, and the crossbeam bracket connects the right The space between the beam 1 and the left beam 2 is divided into multiple internal compartments, which improves the integrity of the chassis and the collision safety of the vehicle, and the distribution of the center of gravity of the vehicle is also more reasonable. A plurality of longitudinal support beams 9 arranged parallel to the axis, a plurality of grooves for weight reduction are arranged on the longitudinal support beams 9, the longitudinal support beams 9 support the parts to be placed, and one end of the beam bracket is provided with a front bridge section car Frame, the end of the crossbeam support away from the frame of the front bridge section is connected to the rear bridge section frame, the crossbeam support includes a plurality of transverse support beams, openings are set on the transverse support beams, and the openings are convenient for installing water pipes and wiring harnesses. The bottoms of the support beams are all connected to the longitudinal support beams 9 , and a certain distance is set between adjacent transverse support beams as installation space for vehicle equipment.

Referring to Figures 1-6, the beam support includes a first transverse support beam 3, a second transverse support beam 4, a third transverse support beam 5, a fourth transverse support beam 6 and a fifth transverse support beam 7, and a plurality of longitudinal support beams One end of 9 is fixed on the fifth transverse support beam 7, and one end of a plurality of longitudinal support beams 9 away from the fifth transverse support beam 7 is fixed on the first transverse support beam 3, and different parts are divided by different support beams, so as to Parts are protected to avoid collisions, etc., the first transverse support beam 3 and the second transverse support beam 4, the second transverse support beam 4 and the third transverse support beam 5, the third transverse support beam 5 and the fourth transverse support beam 6 1. Both the fourth transverse support beam 6 and the fifth transverse support beam 7 are connected by a plurality of longitudinal support beams 9, and the longitudinal support beam 9 is connected with each transverse support beam through the longitudinal fixed bracket 11, and the battery etc. to be placed The parts are stably supported, and the two ends of the first transverse support beam 3, the second transverse support beam 4, the third transverse support beam 5, the fourth transverse support beam 6 and the fifth transverse support beam 7 pass through a plurality of transverse fixed brackets 10 Connect with the right side beam 1 and the left side beam 2 respectively, the transverse fixed bracket 10 connects the first transverse support beam 3, the second transverse support beam 4, the third transverse support beam 5, the fourth transverse support beam 6 and the fifth transverse support beam 7 Firmly fixed on the right side beam 1 and the left side beam 2, a cooling cabin is arranged between the first horizontal support beam 3 and the second horizontal support beam 4, and the cooling cabin is used to arrange the cooling system 31, the second horizontal support beam 4 and the third horizontal support beam A battery compartment is arranged between the transverse support beam 5 and the third transverse support beam 5 and the fourth transverse support beam 6, the battery compartment is used to place the power battery 32, and the fourth transverse support beam 6 and the fifth transverse support beam 7 are arranged The high and low pressure system accessory warehouse, the high and low pressure system accessory warehouse is used for arranging the high and low pressure system accessories 33 .

Referring to Figures 1 and 4, the front axle section vehicle frame includes a first front axle rectangular transverse tube beam 19 and a second front axle rectangular transverse tube beam 20, and the first front axle rectangular transverse tube beam 19 and the second front axle rectangular transverse tube beam The two ends of the beam 20 are respectively connected with the right side beam 1 and the left side beam 2 through the front bridge reinforcement beam 23, the front bridge reinforcement beam 23 is connected with the right side beam 1 and the left side beam 2 by bolts, the first front axle rectangular transverse pipe beam 19 and the The right front axle rectangular longitudinal pipe beam 21 and the left front axle rectangular longitudinal pipe beam 22 are commonly connected between the two front axle rectangular transverse pipe beams 20, and the two ends of the right front axle rectangular longitudinal pipe beam 21 and the left front axle rectangular longitudinal pipe beam 22 respectively pass The reinforcement casting 24 is connected with the first front axle rectangular transverse pipe beam 19 and the second front axle rectangular transverse pipe beam 20, and the front axle reinforcement casting 24 stably supports the right front axle rectangular longitudinal pipe beam 21 and the left front axle rectangular longitudinal pipe beam 22, To provide good supporting force, a front independent suspension 34 is connected between the rectangular longitudinal pipe beam 21 of the right front axle and the rectangular longitudinal pipe beam 22 of the left front axle, and the rectangular longitudinal pipe beam 21 of the right front axle and the rectangular longitudinal pipe beam 22 of the left front axle are connected by bolts and front Independent suspension 34 connections.

Referring to Figures 1-6, the frame of the rear axle section includes a first rear axle rectangular transverse pipe beam 25 and a second rear axle rectangular transverse pipe beam 26, and a rear crossbeam 8 is fixed between the right beam 1 and the left beam 2, and the tail crossbeam 8. One end away from the second rear axle rectangular transverse pipe beam 26, between the first rear axle rectangular transverse pipe beam 25 and the second rear axle rectangular transverse pipe beam 26 is connected with a right rear axle rectangular longitudinal pipe beam 27 and a left rear axle rectangular longitudinal pipe beam 27. The longitudinal tube beam 28, the rectangular longitudinal tube beam 27 of the right rear axle and the rectangular longitudinal tube beam 28 of the left rear axle are connected with a rear leaf spring suspension 35, the rectangular transverse tube beam 25 of the first rear axle and the rectangular transverse tube beam of the second rear axle Both ends of the beam 26 are connected with the right beam 1 and the left beam 2 through the rear axle reinforcing beam 29 .

1 and 5, the two ends of the right rear axle rectangular longitudinal pipe beam 27 and the left rear axle rectangular longitudinal pipe beam 28 are connected to the first rear axle rectangular transverse pipe beam 25 and the second rear axle rectangular transverse pipe beam 25 through the suspension mounting support 30 respectively. The transverse tube beam 26 is connected, the suspension mounting support 30 includes two limiting parts and a connecting part, the first rear axle rectangular transverse tube beam 25 and the second rear axle rectangular transverse tube beam 26 are located in the two limiting parts, and Connected by bolts and stoppers.

Referring to Figures 1 and 3, the right beam 1 is connected to the right sunken side beam 12 through the right connecting plate 14, and the left beam 2 is connected to the left sunken side beam 13 through the left connecting plate 15. The sunken side beam is designed to meet Low entrance cab requirements, the first beam 16 and the second beam 17 are installed between the left sunken side beam 13 and the right sunken side beam 12, and there are many connections between the first beam 16 and the second beam 17 A rectangular support beam 18 arranged in parallel, a plurality of rectangular support beams 18 are arranged in parallel to increase the rigidity of the front end vehicle frame.

Referring to Figures 1 and 3, the second transverse support beam 4, the third transverse support beam 5, and the fourth transverse support beam 6 have the same height, and the height of the first transverse support beam 3 and the fifth transverse support beam 7 is lower than that of the second transverse support beam 4, the second front axle rectangular transverse tube beam 20 is located above the first transverse support beam 3, the first rear axle rectangular transverse tube beam 25 is located above the fifth transverse support beam 7, the first transverse support beam 3 and the first transverse support beam 7 The size of the fifth transverse support beam 7 is smaller than that of other transverse support beams, and an installation space is reserved for the second front axle rectangular transverse pipe beam 20 and the first rear axle rectangular transverse pipe beam 25 .

The above description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention will not be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. A frame assembly of a new energy commercial vehicle, characterized in that it includes a right beam (1) and a left beam (2) symmetrically arranged in parallel along the central axis of the frame, and the right beam (1) and the left beam (2) are jointly fixed with a beam bracket, and the bottom of the beam bracket is provided with a plurality of longitudinal support beams (9) arranged in parallel along the central axis of the frame. In the weight-reducing groove, one end of the beam bracket is provided with a front axle frame, and the end of the beam bracket away from the front bridge frame is connected with a rear bridge frame, and the beam bracket includes a plurality of lateral supports Beams, the bottoms of multiple transverse support beams are connected to the longitudinal support beams (9), and the adjacent transverse support beams are separated by a certain distance as the installation space for vehicle equipment. 2. The frame assembly of a new energy commercial vehicle according to claim 1, characterized in that: the beam bracket includes a first transverse support beam (3), a second transverse support beam (4), a third transverse support beam The supporting beam (5), the fourth transverse supporting beam (6) and the fifth transverse supporting beam (7), a cooling chamber is arranged between the first transverse supporting beam (3) and the second transverse supporting beam (4), so A battery compartment is arranged between the second transverse support beam (4) and the third transverse support beam (5) and the third transverse support beam (5) and the fourth transverse support beam (6), and the fourth transverse support beam (6) and the fifth transverse support beam (7) are provided with high and low pressure system accessory compartments. 3. The frame assembly of a new energy commercial vehicle according to claim 1, characterized in that: the front axle section frame includes a first front axle rectangular transverse tube beam (19) and a second front axle rectangular transverse tube beam (19) Pipe beam (20), the two ends of the first front axle rectangular transverse pipe beam (19) and the second front axle rectangular transverse pipe beam (20) pass through the front axle reinforcement beam (23) and the right beam (1) and The left beam (2) is connected, the rectangular transverse tube beam of the first front axle (19) and the rectangular transverse tube beam of the second front axle (20) are jointly connected with the rectangular longitudinal tube beam of the right front axle (21) and the rectangular longitudinal tube beam of the left front axle The longitudinal pipe beam (22), the front independent suspension (34) is connected between the right front axle rectangular longitudinal pipe beam (21) and the left front axle rectangular longitudinal pipe beam (22). 4. The frame assembly of a new energy commercial vehicle according to claim 3, characterized in that: the two ends of the right front axle rectangular longitudinal pipe beam (21) and the left front axle rectangular longitudinal pipe beam (22) respectively pass through the front axle The reinforcing casting (24) is connected with the first front axle rectangular transverse tube beam (19) and the second front axle rectangular transverse tube beam (20). 5. The frame assembly of a new energy commercial vehicle according to claim 1, characterized in that: the rear axle section frame includes a first rear axle rectangular transverse tube beam (25) and a second rear axle rectangular transverse tube beam (25) The pipe beam (26), the right rear axle rectangular longitudinal pipe beam (27) and the left rear axle rectangular pipe beam (27) are connected between the first rear axle rectangular transverse pipe beam (25) and the second rear axle rectangular transverse pipe The longitudinal tube beam (28), the rear leaf spring suspension (35) is connected between the right rear axle rectangular longitudinal tube beam (27) and the left rear axle rectangular longitudinal tube beam (28), the first rear axle rectangular Both ends of the transverse pipe girder (25) and the rectangular transverse pipe girder (26) of the second rear axle are connected with the right beam (1) and the left beam (2) through the rear axle reinforcement beam (29), and the right beam (1) and A tail beam (8) is fixed between the left beams (2), and the tail beam (8) is far away from one end of the rectangular transverse tube beam (26) of the second rear axle. 6. The frame assembly of a new energy commercial vehicle according to claim 5, characterized in that: the two ends of the right rear axle rectangular longitudinal tube beam (27) and the left rear axle rectangular longitudinal tube beam (28) are respectively The suspension mounting support (30) is connected with the first rear axle rectangular transverse pipe beam (25) and the second rear axle rectangular transverse pipe beam (26). 7. The frame assembly of a new energy commercial vehicle according to claim 1, characterized in that: the right side beam (1) is connected with a right sunken side beam (12) through a right connecting plate (14), so The left side beam (2) is connected to the left sunken side beam (13) through the left connecting plate (15), and the left sunken side beam (13) and the right sunken side beam (12) are jointly installed with the A beam (16) and a second beam (17), wherein a plurality of rectangular support beams (18) arranged in parallel are connected between the first beam (16) and the second beam (17). 8. The frame assembly of a new energy commercial vehicle according to claim 2, characterized in that adjacent transverse support beams are connected to the longitudinal support beams (9) through longitudinal fixing brackets (11). 9. The frame assembly of a new energy commercial vehicle according to claim 1, characterized in that: the two ends of the lateral support beam are respectively connected to the right beam (1) and the left beam through a plurality of horizontal fixing brackets (10). (2) Connection. 10. The frame assembly of a new energy commercial vehicle according to claim 2, characterized in that: the height of the second transverse support beam (4), the third transverse support beam (5), and the fourth transverse support beam (6) is Consistently, the height of the first transverse support beam (3) and the fifth transverse support beam (7) is lower than that of the second transverse support beam (4), and the rectangular transverse tube beam (20) of the second front axle is located at the Above a transverse support beam (3), the first rear axle rectangular transverse tube beam (25) is located above the fifth transverse support beam (7).

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