CN110937021A - Electric transport vehicle chassis frame without cab - Google Patents
Electric transport vehicle chassis frame without cab Download PDFInfo
- Publication number
- CN110937021A CN110937021A CN201911303547.8A CN201911303547A CN110937021A CN 110937021 A CN110937021 A CN 110937021A CN 201911303547 A CN201911303547 A CN 201911303547A CN 110937021 A CN110937021 A CN 110937021A
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- China
- Prior art keywords
- longitudinal beam
- cab
- connecting plate
- right longitudinal
- chassis frame
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
- B62D21/02—Understructures, i.e. chassis frame on which a vehicle body may be mounted comprising longitudinally or transversely arranged frame members
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
- B62D21/02—Understructures, i.e. chassis frame on which a vehicle body may be mounted comprising longitudinally or transversely arranged frame members
- B62D21/03—Understructures, i.e. chassis frame on which a vehicle body may be mounted comprising longitudinally or transversely arranged frame members transverse members providing body support
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
- B62D21/02—Understructures, i.e. chassis frame on which a vehicle body may be mounted comprising longitudinally or transversely arranged frame members
- B62D21/04—Understructures, i.e. chassis frame on which a vehicle body may be mounted comprising longitudinally or transversely arranged frame members single longitudinal type
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
- B62D21/11—Understructures, i.e. chassis frame on which a vehicle body may be mounted with resilient means for suspension, e.g. of wheels or engine; sub-frames for mounting engine or suspensions
Abstract
The invention relates to the field of automobile frames, in particular to a chassis frame of an electric transport vehicle without a cab. The chassis frame of the electric transport vehicle without the cab comprises a left longitudinal beam, a right longitudinal beam and a plurality of cross beam assemblies for connecting the middle parts of the left longitudinal beam and the right longitudinal beam, wherein the cross sections of the left longitudinal beam and the right longitudinal beam in the width direction are both groove-shaped, the cross sections of the left longitudinal beam and the right longitudinal beam in the length direction are both linear, the left longitudinal beam and the right longitudinal beam are parallel to each other, the left longitudinal beam and the right longitudinal beam are bilaterally symmetrical by taking the center line of the frame as a symmetry axis, and the left longitudinal beam and the right longitudinal beam are respectively symmetrical front and back by taking the perpendicular bisector of the center; each beam assembly is symmetrical left and right by taking the center line of the frame as a symmetry axis, and the beam assemblies are symmetrically arranged front and back by taking the perpendicular bisector of the center line of the frame as the symmetry axis. The chassis frame of the electric transport vehicle without the cab has the characteristics of simple structure and strong torsion resistance.
Description
Technical Field
The invention relates to the field of automobile frames, in particular to a chassis frame of an electric transport vehicle without a cab.
Background
In ports and factories where vehicle transportation routes are fixed and working conditions are single, at present, traditional trucks are still adopted to load and transport goods, and the frame structure of the traditional diesel truck is complex, the varieties of beams are more, the frame weight is heavier, and the cost is higher.
In order to reduce the transportation cost in ports and factories, electric transport vehicles are adopted in part of the ports and factories to replace traditional diesel trucks, but the chassis frame of the existing electric transport vehicle has the defects of low torsion resistance and complex structure.
Disclosure of Invention
In order to solve the problems, the invention aims to provide a chassis frame of an electric transport vehicle without a cab, which has the characteristics of simple structure and strong torsion resistance.
In order to achieve the purpose, the chassis frame of the electric transport vehicle without the cab comprises a left longitudinal beam, a right longitudinal beam and a plurality of cross beam assemblies connecting the middle parts of the left longitudinal beam and the right longitudinal beam, wherein the cross sections of the left longitudinal beam and the right longitudinal beam in the width direction are both groove-shaped, the cross sections of the left longitudinal beam and the right longitudinal beam in the length direction are both linear, the left longitudinal beam and the right longitudinal beam are parallel to each other, the left longitudinal beam and the right longitudinal beam are bilaterally symmetrical by taking a frame center line as a symmetry axis, and the left longitudinal beam and the right longitudinal beam are respectively symmetrical front and back by taking a perpendicular bisector of the frame center line as a symmetry axis; each beam assembly is bilaterally symmetrical by taking the center line of the frame as a symmetry axis, and the beam assemblies are symmetrically arranged in front and back directions by taking the perpendicular bisector of the center line of the frame as the symmetry axis.
As a preferred scheme, each beam assembly comprises a back-to-back groove-shaped beam and four connecting plates, wherein the back-to-back groove-shaped beam is formed by mounting two groove-shaped beams back-to-back and comprises an upper panel, a lower panel and a middle supporting beam, two ends of the upper panel are respectively connected with the left longitudinal beam and the right longitudinal beam through the connecting plates, and two ends of the lower panel are respectively connected with the left longitudinal beam and the right longitudinal beam through the connecting plates.
As a preferred scheme, each connecting plate all includes that the diaphragm bends the curb plate that forms perpendicularly downwards along the border of diaphragm, four the connecting plate is first connecting plate, second connecting plate, third connecting plate and fourth connecting plate respectively, the diaphragm of first connecting plate and second connecting plate is fixed respectively at the both ends of back-to-back cell type crossbeam top panel, the curb plate of first connecting plate and second connecting plate is fixed respectively on the inner wall of left longeron and right longeron, the diaphragm of third connecting plate and fourth connecting plate is fixed respectively at the both ends of back-to-back cell type crossbeam bottom panel, the curb plate of third connecting plate and fourth connecting plate is fixed respectively on the inner wall of left longeron and right longeron.
Preferably, a plurality of lightening holes are formed in a middle support beam of each cross beam assembly, and the lightening holes are uniformly arranged along the length direction of the middle support beam.
As preferred scheme, it still includes two pipe beam assemblies of connecting left longeron and right longeron tip, every the pipe beam assembly all includes a root circle tubular beams and two linking bridge, the both ends of pipe beam are passed through linking bridge and are fixed with the inner wall of left longeron and right longeron respectively, every the pipe beam assembly all uses the frame central line as symmetry axis bilateral symmetry, just two pipe beam assemblies use the perpendicular bisector of frame central line as symmetry axis longitudinal symmetry.
According to the preferable scheme, each circular tube beam assembly further comprises a towing hook front support, a towing hook rear support and a towing hook pin, the towing hook pin is vertically installed on the outer side of the towing hook front support, and the towing hook front support and the towing hook rear support are clamped and fixed in the middle of the circular tube beam after being folded.
As a preferred scheme, the middle part of each connecting support is provided with a first connecting part fixedly welded with the circular tube beam, the edge of each connecting support is provided with a second connecting part fixedly attached to the longitudinal beam, and the outer side of each connecting support is provided with a reserved interface capable of being connected with a bumper and a portable towing hook.
According to the preferable scheme, the first connecting portion is of a hollow sleeve structure, and the first connecting portion is sleeved at the end portion of the circular tube beam, and the inner wall of the first connecting portion is welded and fixed with the outer side wall of the end portion of the circular tube beam.
Preferably, the suspension device further comprises four suspension fixing end brackets, four suspension lifting lug end brackets and a plurality of upper connecting angle irons;
two suspension fixing end brackets are respectively fixed at two ends of the left longitudinal beam, and the rest two suspension fixing end brackets are respectively fixed at two ends of the right longitudinal beam; the two suspension fixing end brackets positioned on the left longitudinal beam and the two suspension fixing end brackets positioned on the right longitudinal beam are symmetrically arranged in the left-right direction by taking the center line of the frame as a symmetry axis;
two suspension hanger end brackets are respectively fixed at two ends of the left longitudinal beam, and the other two suspension hanger end brackets are respectively fixed at two ends of the right longitudinal beam; the two suspension lifting lug end brackets positioned on the left longitudinal beam and the two suspension lifting lug end brackets positioned on the right longitudinal beam are arranged in a bilateral symmetry mode by taking the center line of the frame as a symmetry axis;
a plurality of upper connecting angle irons positioned on the left longitudinal beam are uniformly arranged along the length direction of the left longitudinal beam; a plurality of upper-mounted connecting angle irons positioned on the right longitudinal beam are uniformly arranged along the length direction of the right longitudinal beam.
Preferably, the left longitudinal beam comprises a left main longitudinal beam and a left auxiliary longitudinal beam, the left main longitudinal beam and the left auxiliary longitudinal beam are equal in length, and the left auxiliary longitudinal beam is fixed on the inner side of the left main longitudinal beam in a fit manner through a bolt; the right side longeron includes right side main longitudinal beam and the vice longeron in right side, the right side main longitudinal beam with the vice longeron in right side is isometric, just the vice longeron in right side passes through the bolt laminating to be fixed the inboard of right side main longitudinal beam.
The invention has the advantages that: compared with the existing chassis frame of the electric transport vehicle, firstly, the chassis frame of the electric transport vehicle without the cab is of a highly symmetrical structure, specifically, the left longitudinal beam and the right longitudinal beam are parallel to each other, the left longitudinal beam and the right longitudinal beam are bilaterally symmetrical by taking the center line of the chassis as a symmetrical axis, the left longitudinal beam and the right longitudinal beam are respectively symmetrical front and back by taking the perpendicular bisector of the center line of the chassis as the symmetrical axis, each cross beam assembly is symmetrical left and right by taking the center line of the chassis as the symmetrical axis, and the cross beam assemblies are symmetrically arranged front and back by taking the perpendicular bisector of the center line of the chassis as the symmetrical axis. And secondly, the left longitudinal beam and the right longitudinal beam of the chassis frame of the electric transport vehicle without the cab are both linear, and a complex bending section structure is not arranged, so that the manufacturing process cost is reduced. Finally, the cross beam assembly and the circular tube beam assembly of the chassis frame of the electric transport vehicle without the cab have simple structures, and the integral torsion resistance of the frame is improved.
Drawings
FIG. 1 is a schematic perspective view of a chassis frame of an electric transportation vehicle without a cab according to the present invention;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is an exploded view of FIG. 1;
FIG. 4 is a schematic structural view of the beam assembly of FIG. 1;
FIG. 5 is a schematic structural view of the tubular beam assembly of FIG. 1;
the components in the figures are numbered as follows: the structure comprises a left longitudinal beam 10, a left main longitudinal beam 11, a left auxiliary longitudinal beam 12, a right longitudinal beam 20, a right main longitudinal beam 21, a right auxiliary longitudinal beam 22, a cross beam assembly 30, a back-to-back groove-shaped cross beam 31, a groove-shaped cross beam 311, an upper panel 31a, a lower panel 31b, a middle support beam 31c, a lightening hole 31d, a connecting plate 32, a first connecting plate 321, a second connecting plate 322, a third connecting plate 323, a fourth connecting plate 324, a transverse plate 32a, a side panel 32b, a circular pipe beam assembly 40, a connecting bracket 41, a first connecting part 41b, a second connecting part 41a, a third connecting part 41c, a wire harness bracket 43, a towing hook rear bracket 44, a towing hook pin 45, a towing hook front bracket 46 and a; the suspension fixing end bracket 50, the suspension lifting lug end bracket 60, the upper mounting connecting angle iron 70, a frame center line a and a perpendicular bisector b of the frame center line.
Detailed Description
For a better understanding of the present invention, reference will now be made in detail to the present invention, examples of which are illustrated in the accompanying drawings.
Referring to fig. 1, the chassis frame of the electric transportation vehicle without the cab in the embodiment includes a left longitudinal beam 10, a right longitudinal beam 20, five sets of cross beam assemblies 30 connecting the middle portions of the left longitudinal beam 10 and the right longitudinal beam 20, two sets of circular tube beam assemblies 40 connecting the end portions of the left longitudinal beam 10 and the right longitudinal beam 20, two suspension fixing end brackets 50 respectively fixed to the left longitudinal beam 10 and the right longitudinal beam 20, and two suspension lug end brackets 60 and 10 upper connecting angle irons 70.
Referring to fig. 1 and 2, the chassis frame of the electric transportation vehicle without the cab in this embodiment is a symmetric structure, specifically, the left longitudinal beam 10 and the right longitudinal beam 20 are parallel to each other and the left longitudinal beam 10 and the right longitudinal beam 20 are bilaterally symmetric with respect to the frame center line a, the left longitudinal beam 10 and the right longitudinal beam 20 are respectively symmetric front and back with respect to the perpendicular bisector b of the frame center line a, each cross beam assembly 30 is symmetric left and right with respect to the frame center line a, and the five groups of cross beam assemblies 30 are symmetrically arranged front and back with respect to the perpendicular bisector b of the frame center line a; each circular tube beam assembly 40 is symmetrical left and right by taking the frame central line a as a symmetrical axis, and the two circular tube beam assemblies 40 are symmetrical front and back by taking the perpendicular bisector b of the frame central line a as a symmetrical axis; the two suspension fixing end brackets 50 positioned on the left longitudinal beam 10 and the two suspension fixing end brackets 50 positioned on the right longitudinal beam 20 are arranged in bilateral symmetry by taking the frame center line a as a symmetry axis; the two suspension lug end brackets 60 on the left longitudinal beam 10 and the two suspension lug end brackets 60 on the right longitudinal beam 20 are arranged in bilateral symmetry with the frame center line a as a symmetry axis.
Referring to fig. 1 and 3, the left longitudinal beam 10 is composed of a left main longitudinal beam 11 and a left auxiliary longitudinal beam 12, the cross sections of the left main longitudinal beam 11 and the left auxiliary longitudinal beam 12 in the width direction are both groove-shaped, the cross sections of the left main longitudinal beam 11 and the left auxiliary longitudinal beam 12 in the length direction are both linear, the left main longitudinal beam 11 and the left auxiliary longitudinal beam 12 are equal in length, and the left auxiliary longitudinal beam 12 is fixed on the inner side of the left main longitudinal beam 11 by bolt fitting. The right longitudinal beam 20 is composed of a right main longitudinal beam 21 and a right auxiliary longitudinal beam 22, the width direction sections of the right main longitudinal beam 21 and the right auxiliary longitudinal beam 22 are groove-shaped, the length direction sections of the right main longitudinal beam 21 and the right auxiliary longitudinal beam 22 are linear, the right main longitudinal beam 21 and the right auxiliary longitudinal beam 22 are equal in length, and the right auxiliary longitudinal beam 22 is fixed on the inner side of the right main longitudinal beam 21 in a fit mode through bolts. The left longitudinal beam 10 and the right longitudinal beam 20 are both composed of two layers of longitudinal beams, so that the frame has stronger bending resistance and torsion resistance, and the strength of the frame is improved; and the left longitudinal beam 10 and the right longitudinal beam 20 are arranged in parallel, the length directions of the left longitudinal beam 10 and the right longitudinal beam 20 are both linear, a complex bending section structure is not provided, and the manufacturing process cost is reduced.
With reference to fig. 2 and 4, five sets of beam assemblies 30 are disposed along the middle portions of the left longitudinal beam 10 and the right longitudinal beam 20 in the length direction, the distances between two adjacent sets of beam assemblies 30 in the five sets of beam assemblies 30 are the same, the five sets of beam assemblies 30 are symmetrically arranged with the perpendicular bisector b of the center line of the frame as the symmetry axis, each set of beam assembly 30 includes two back-to-back groove-shaped beams 31 and four connecting plates 32, the back-to-back groove-shaped beams 31 are in an i shape and include an upper panel 31a, a lower panel 31b and a middle supporting beam 31c, the side walls of the two groove-shaped beams 311 are spliced to form the upper panel 31a of the back-to-back groove-shaped beam 31, the side walls of the other sides of the two groove-shaped beams 311 are spliced to form the lower panel 31b of the back-to-back groove-shaped beam 31, the top surfaces of the two groove-shaped beams 311 are spliced to form the, the two ends of the upper panel 31a are respectively connected with the left longitudinal beam 10 and the right longitudinal beam 20 through connecting plates 32, the two ends of the lower panel 31b are respectively connected with the left longitudinal beam 10 and the right longitudinal beam 20 through connecting plates 32, concretely, the four connecting plates 32 are respectively a first connecting plate 321, a second connecting plate 322, a third connecting plate 323 and a fourth connecting plate 324, the four connecting plates 32 have the same structure, each connecting plate 32 comprises a transverse plate 32a and a side plate 32b formed by vertically bending downwards along the edge of the transverse plate 32a, the transverse plate 32a of the first connecting plate 321 is fixed with the left end of the upper panel 31a of the back-to-back trough-shaped cross beam 31 through rivets, the side plate 32b of the first connecting plate 321 is fixed with the inner side wall of the left longitudinal beam 10 through bolts, the transverse plate 32a of the second connecting plate 322 is fixed with the right end of the upper panel 31a of the back-to-back trough-shaped cross beam 31 through rivets, the side plate, the transverse plate 32a of the third connecting plate 323 is fixed with the left end of the lower panel 31b of the back-to-back groove-shaped cross beam 31 through a rivet, the side plate 32b of the third connecting plate 323 is fixed with the inner side wall of the left longitudinal beam 10 through a bolt, the transverse plate 32a of the fourth connecting plate 324 is fixed with the right end of the lower panel 31b of the back-to-back groove-shaped cross beam 31 through a rivet, and the side plate 32b of the fourth connecting plate 324 is fixed with the inner side wall of the right longitudinal beam 20 through a. The frame has strong torsion resistance through the uniform and symmetrical arrangement of the five groups of beam assemblies and the structural design of each group of beam assemblies.
As shown in fig. 2 and 5, two sets of circular tube beam assemblies 40 are provided, one set of circular tube beam assembly 40 is disposed at the front ends of the left longitudinal beam 10 and the right longitudinal beam 20, the other set of circular tube beam assembly 40 is disposed at the rear ends of the left longitudinal beam 10 and the right longitudinal beam 20, and the two sets of circular tube beam assemblies 40 are used for connecting the front ends and the rear ends of the left longitudinal beam 10 and the right longitudinal beam 20, specifically, each set of circular tube beam assembly 40 includes a circular tube beam 47, two connecting brackets 41, two harness brackets 43, a tow hook front bracket 46, a tow hook rear bracket 44 and a tow hook pin 45; the two ends of a circular tubular beam 47 are respectively fixed with the inner walls of the left longitudinal beam 10 and the right longitudinal beam 20 through connecting brackets 41, a towing hook pin 45 is vertically installed on the outer side of a towing hook front bracket 46, the towing hook front bracket 46 and a towing hook rear bracket 44 are clamped and fixed in the middle of the circular tubular beam 47 after being folded, a first connecting part 41b welded and fixed with the end of the circular tubular beam is arranged in the middle of each connecting bracket 41, a second connecting part 41a fixed with the longitudinal beam is arranged at the edge of the connecting bracket 41, a reserved interface 41c is arranged on the outer side of the connecting bracket 41, and the left reserved interface 41c can be connected with a bumper and a portable towing hook; the first connecting portion 41b is of a hollow sleeve structure, the first connecting portion 41b is sleeved on the end portion of the circular tube beam 47, and the inner wall of the first connecting portion 41b is welded and fixed with the outer side wall of the end portion of the circular tube beam 47; the two harness brackets 43 are fixed to both ends of the tubular beam 47, respectively.
Referring to fig. 1, fig. 2 and fig. 3, four suspension fixing end brackets 50, four suspension lug end brackets 60 and ten upper loading connecting angle irons 70 are fixed on the left longitudinal beam 10 and the right longitudinal beam 20 together through bolts, five upper loading connecting angle irons 70 are uniformly arranged on the outer side of the left longitudinal beam 10, five upper loading connecting angle irons 70 are also uniformly arranged on the outer side of the right longitudinal beam 20, and as the electric transport vehicle has no cab, and the upper loading box and the vehicle frame are completely attached, the upper loading connecting angle irons 70 are arranged along the front end to the rear end of the left longitudinal beam 10 and the right longitudinal beam 20, so that the connection reliability of the vehicle frame and the upper loading box is improved.
Compared with the chassis frame of the existing electric transport vehicle, the chassis frame of the electric transport vehicle without the cab has the following advantages:
(1) the left longitudinal beam and the right longitudinal beam of the chassis frame of the electric transport vehicle without the cab are symmetrical by taking the center line of the frame as a symmetry axis, and the length directions of the left longitudinal beam and the right longitudinal beam are linear, so that a complex bending section structure is not provided, and the manufacturing process cost is reduced.
(2) The beam assembly of the chassis frame of the electric transport vehicle without the cab has a simple structure, only comprises the back-to-back groove-shaped beam and the connecting plate, reduces the manufacturing process cost, has stronger torsion resistance, and improves the torsion resistance of the whole frame.
(3) The round pipe beam assemblies of the chassis frame of the electric transport vehicle without the cab are arranged at two ends of the frame, so that the torsion resistance of the tail end of the frame is improved.
(4) The overall symmetrical layout of the chassis frame of the electric transport vehicle without the cab not only reduces the manufacturing process cost of the frame, but also improves the bearing capacity of the frame.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A chassis frame of an electric transport vehicle without a cab comprises a left longitudinal beam (10), a right longitudinal beam (20) and a plurality of cross beam assemblies (30) which are connected with the middle parts of the left longitudinal beam (10) and the right longitudinal beam (20); the cross sections of the left longitudinal beam (10) and the right longitudinal beam (20) in the width direction are groove-shaped, the cross sections of the left longitudinal beam (10) and the right longitudinal beam (20) in the length direction are linear, the left longitudinal beam (10) and the right longitudinal beam (20) are parallel to each other, the left longitudinal beam (10) and the right longitudinal beam (20) are bilaterally symmetrical by taking a frame center line (a) as a symmetry axis, and the left longitudinal beam (10) and the right longitudinal beam (20) are respectively symmetrical front and back by taking a perpendicular bisector (b) of the frame center line (a) as a symmetry axis; each beam assembly (30) is symmetrical left and right by taking a frame center line (a) as a symmetry axis, and the beam assemblies (30) are symmetrically arranged front and back by taking a perpendicular bisector (b) of the frame center line (a) as the symmetry axis.
2. The cab-free electric transport vehicle chassis frame according to claim 1, wherein each of the beam assemblies (30) comprises a back-to-back groove-shaped beam (31) formed by two groove-shaped beams (311) mounted back-to-back and four connecting plates (32), the back-to-back groove-shaped beam (31) is in an I shape and comprises an upper panel (31a), a lower panel (31b) and a middle supporting beam (31c), two ends of the upper panel (31a) are respectively connected with the left longitudinal beam (10) and the right longitudinal beam (20) through the connecting plates (32), and two ends of the lower panel (31b) are respectively connected with the left longitudinal beam (10) and the right longitudinal beam (20) through the connecting plates (32).
3. The cab-less electric vehicle chassis frame according to claim 2, wherein each of the connecting plates (32) includes a transverse plate (32a) and a side plate (32b) formed by bending vertically downward along the edge of the transverse plate (32a), four of the connecting plates (32) are a first connecting plate (321), a second connecting plate (322), a third connecting plate (323) and a fourth connecting plate (324), the transverse plates (32a) of the first connecting plate (321) and the second connecting plate (322) are respectively fixed at both ends of an upper plate (31a) of the back-to-back channel-shaped cross member (31), the side plates (32b) of the first connecting plate (321) and the second connecting plate (322) are respectively fixed on inner walls of the left longitudinal member (10) and the right longitudinal member (20), the transverse plates (32a) of the third connecting plate (323) and the fourth connecting plate (324) are respectively fixed at both ends of a lower plate (31b) of the back-to-back channel-shaped cross member (31), and side plates (32b) of the third connecting plate (323) and the fourth connecting plate (324) are respectively fixed on the inner walls of the left longitudinal beam (10) and the right longitudinal beam (20).
4. The cab-less electric transportation vehicle chassis frame according to claim 2, wherein a plurality of lightening holes (31d) are formed in the intermediate support beam (31c) of each of the cross member assemblies (30), and the plurality of lightening holes (31d) are uniformly arranged along the length direction of the intermediate support beam (31 c).
5. The cab-free electric transport vehicle chassis frame according to claim 1, further comprising two circular tube beam assemblies (40) connecting ends of the left longitudinal beam (10) and the right longitudinal beam (20), wherein each circular tube beam assembly (40) comprises a circular tube beam (47) and two connecting brackets (41), two ends of each circular tube beam (47) are respectively fixed with inner walls of the left longitudinal beam (10) and the right longitudinal beam (20) through the connecting brackets (41), each circular tube beam assembly (40) is bilaterally symmetrical with respect to a frame center line (a) as a symmetry axis, and the two circular tube beam assemblies (40) are symmetrical front and back with respect to a perpendicular bisector (b) of the frame center line (a) as a symmetry axis.
6. The cab-free electric transport vehicle chassis frame according to claim 5, wherein each tubular beam assembly (40) further comprises a towing hook front support (46), a towing hook rear support (44) and a towing hook pin (45), the towing hook pin (45) is vertically installed on the outer side of the towing hook front support (46), and the towing hook front support (46) and the towing hook rear support (44) are clamped and fixed in the middle of the tubular beam (47) after being folded.
7. The electric transportation vehicle chassis frame without the cab as claimed in claim 5, wherein each connecting bracket (41) has a first connecting portion (41b) welded and fixed with a tubular beam (47) in the middle, the edge of the connecting bracket (41) has a second connecting portion (41a) attached and fixed with a longitudinal beam, and the outer side of the connecting bracket (41) has a reserved interface (41c) capable of connecting a bumper and a portable towing hook.
8. The cab-free electric transport vehicle chassis frame according to claim 7, wherein the first connection portion (41b) is of a hollow sleeve structure, the first connection portion (41b) is sleeved on the end portion of the circular tube beam (47), and the inner wall of the first connection portion (41b) is welded and fixed with the outer side wall of the end portion of the circular tube beam (47).
9. The cab-less electric transporter chassis frame of claim 1, further comprising four suspension securing end brackets (50), four suspension lifting lug end brackets (60), and a plurality of upper attachment angle irons (70);
two suspension fixing end brackets (50) are respectively fixed at two ends of the left longitudinal beam (10), and the rest two suspension fixing end brackets (50) are respectively fixed at two ends of the right longitudinal beam (20); two suspension fixing end brackets (50) positioned on the left longitudinal beam (10) and two suspension fixing end brackets (50) positioned on the right longitudinal beam (20) are symmetrically arranged in the left-right direction by taking the central line (a) of the frame as a symmetry axis;
two suspension lifting lug end brackets (60) are respectively fixed at two ends of the left longitudinal beam (10), and the rest two suspension lifting lug end brackets (60) are respectively fixed at two ends of the right longitudinal beam (20); the two suspension lifting lug end brackets (60) positioned on the left longitudinal beam (10) and the two suspension lifting lug end brackets (60) positioned on the right longitudinal beam (20) are arranged in bilateral symmetry by taking the central line (a) of the frame as a symmetry axis;
a plurality of upper mounting connecting angle irons (70) positioned on the left longitudinal beam (10) are uniformly arranged along the length direction of the left longitudinal beam (10); a plurality of upper-mounted connecting angle irons (70) positioned on the right longitudinal beam (20) are uniformly arranged along the length direction of the right longitudinal beam (20).
10. The cab-less electric vehicle chassis frame according to any one of claims 1 to 9, wherein the left side member (10) comprises a left main side member (11) and a left auxiliary side member (12), the left main side member (11) and the left auxiliary side member (12) are equal in length, and the left auxiliary side member (12) is fixed on the inner side of the left main side member (11) through bolt fitting; the right longitudinal beam (20) comprises a right main longitudinal beam (21) and a right auxiliary longitudinal beam (22), the right main longitudinal beam (21) and the right auxiliary longitudinal beam (22) are equal in length, and the right auxiliary longitudinal beam (22) is fixed on the inner side of the right main longitudinal beam (21) through bolt fitting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911303547.8A CN110937021A (en) | 2019-12-17 | 2019-12-17 | Electric transport vehicle chassis frame without cab |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911303547.8A CN110937021A (en) | 2019-12-17 | 2019-12-17 | Electric transport vehicle chassis frame without cab |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110937021A true CN110937021A (en) | 2020-03-31 |
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ID=69911608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911303547.8A Pending CN110937021A (en) | 2019-12-17 | 2019-12-17 | Electric transport vehicle chassis frame without cab |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110937021A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113715563A (en) * | 2021-08-12 | 2021-11-30 | 一汽解放汽车有限公司 | Towing hook assembly and automobile |
| CN115140163A (en) * | 2022-08-10 | 2022-10-04 | 中国重汽集团济南动力有限公司 | Heavy-duty dump truck frame |
-
2019
- 2019-12-17 CN CN201911303547.8A patent/CN110937021A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113715563A (en) * | 2021-08-12 | 2021-11-30 | 一汽解放汽车有限公司 | Towing hook assembly and automobile |
| CN115140163A (en) * | 2022-08-10 | 2022-10-04 | 中国重汽集团济南动力有限公司 | Heavy-duty dump truck frame |
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