CN115923934A

CN115923934A - Frame assembly and commercial car

Info

Publication number: CN115923934A
Application number: CN202211167232.7A
Authority: CN
Inventors: 黎会军; 叶志成; 邵志海; 王亚非; 胡金龙; 安秋鸿; 杨建伟; 赵永辉; 夏庆洲; 马扩; 陈晖�; 李明亮; 霍泰平; 昝哈妮; 钱华强; 沈川; 刘雪梅; 刘超; 咸爱飞; 卢荷莲
Original assignee: Dongfeng Automobile Co Ltd
Current assignee: Dongfeng Automobile Co Ltd
Priority date: 2022-09-23
Filing date: 2022-09-23
Publication date: 2023-04-07

Abstract

The invention relates to a frame assembly and a commercial vehicle, wherein the frame assembly comprises: the connecting beam assembly is connected with the two longitudinal beams and comprises a connecting beam, two connecting pieces are respectively fixed at two ends of the connecting beam, each connecting piece is fixedly connected with the corresponding longitudinal beam, at least one connecting piece is provided with a towing hook, and the connecting piece is provided with a first limiting hole; the bumper bracket is provided with a first mounting hole; the first fastening piece sequentially penetrates through the first limiting hole and the first mounting hole, and the bumper support is fixedly connected with the connecting piece. The mounting area overlapping of the bumper support and the beam assembly is realized, the mounting space of the front end of the vehicle is saved, and the arrangement design difficulty and the assembly difficulty of the front end of the vehicle frame are reduced.

Description

Frame assembly and commercial car

Technical Field

The invention relates to the field of chassis of commercial vehicles, in particular to a frame assembly and a commercial vehicle.

Background

At present, be provided with preceding tow hook on commercial car, through setting up in the preceding tow hook of frame front end, satisfy the whole car of commercial car and pull. When the vehicle breaks down, the vehicle is carried to a repair site for repair by pulling the front towing hook.

In the correlation technique, the vehicle can set up the front bumper, and the front bumper can cover and establish the outside of tow hook in the front, promotes the security performance of vehicle and promotes the molding of vehicle, in order to realize pulling the purpose of tow hook in the front, can set up the bumper window at the front bumper, passes the bumper window through the haulage rope and realizes pulling the tow hook in the front.

However, the bumper bracket for fixing the bumper is fixed to the front end of the vehicle frame, the front end of the vehicle frame also needs a fixed cross beam and a front towing hook, and the mounting space of the vehicle frame is limited, so that the mounting of related parts is difficult to meet, and great difficulty is brought to the design work and the assembly work.

Disclosure of Invention

The embodiment of the invention provides a frame assembly and a commercial vehicle, and aims to solve the problem that in the related technology, a bumper bracket, a front towing hook and a cross beam are arranged at the front end of a frame at the same time and are difficult to arrange.

In a first aspect, a vehicle frame assembly is provided, comprising: the connecting beam assembly is connected with the two longitudinal beams and comprises a connecting beam, two connecting pieces are respectively fixed at two ends of the connecting beam, each connecting piece is fixedly connected with the corresponding longitudinal beam, at least one connecting piece is provided with a towing hook, and the connecting piece is provided with a first limiting hole; the bumper bracket is provided with a first mounting hole; the first fastening piece sequentially penetrates through the first limiting hole and the first mounting hole, and the bumper support is fixedly connected with the connecting piece. The integration of crossbeam and tow hook has been realized, has reduced the quantity at the anterior installation part of longeron, and can directly reach the longeron with the traction force transmission that the tow hook received, reduces tie-beam bending deformation's risk to can realize that the bumper support overlaps with the installation zone of crossbeam assembly, practiced thrift the installation space of vehicle front end, reduce the degree of difficulty of arranging of frame front end.

In some embodiments, the connecting piece is also provided with a second limiting hole; a turning oil cylinder bracket is further fixed on the outer side of the longitudinal beam, and a second mounting hole is formed in the turning oil cylinder bracket; the frame assembly further comprises a second fastener, and the second fastener sequentially penetrates through the second limiting hole and the second mounting hole to fixedly connect the turnover oil cylinder support with the connecting piece.

In some embodiments, a stepped shaft is arranged on the overturning oil cylinder bracket, the stepped shaft is perpendicular to the longitudinal beam, the diameter of the stepped shaft is gradually reduced along the direction far away from the longitudinal beam, a pin hole is arranged on the stepped shaft, and the axis of the pin hole is perpendicular to the axis of the stepped shaft; the frame assembly further comprises a turning oil cylinder, one end of the turning oil cylinder is provided with a positioning hole, the positioning hole is sleeved outside the stepped shaft, and a bolt is arranged in the bolt hole so as to lock the turning oil cylinder on the stepped shaft.

In some embodiments, the tilt cylinder bracket is an iron casting.

In some embodiments, the connecting piece is further provided with a third limiting hole; a cab suspension bracket is further fixed on the longitudinal beam, and a third mounting hole is formed in the cab suspension bracket; the frame assembly further comprises a third fastening piece, and the third fastening piece sequentially penetrates through the third limiting hole and the third mounting hole to fixedly connect the cab suspension support and the connecting piece.

In some embodiments, the cab suspension bracket includes a first fixing plate and a second fixing plate perpendicular to each other, and the first fixing plate is provided with the third mounting hole; when the cab suspension bracket is fixedly connected with the connecting piece, the top surface of the second fixing plate is attached to the upper inner wall of the longitudinal beam.

In some embodiments, the connecting member includes a base, the base is fixedly connected to the longitudinal beam, the base is provided with a first boss, and the first boss is provided with a beam hole; one end of the connecting beam is inserted into the cross beam hole and is fixedly connected with the base.

In some embodiments, the outer side of the first boss is provided with a reinforcing rib.

In some embodiments, a plurality of the reinforcing ribs are arranged at intervals in the circumferential direction of the first boss, and the reinforcing ribs are uniformly distributed at intervals in the circumferential direction of the first boss.

In some embodiments, the connecting beam is inserted into the cross beam hole and socket welded to the base.

In some embodiments, the connecting beam is a tubular beam, and a plurality of auxiliary brackets are arranged on the connecting beam at intervals, and the auxiliary brackets are all provided with wiring holes.

In some embodiments, the connecting member is fixed to a vertical surface of a stringer, and the connecting member forms a first tube bundle channel with an upper wing of the stringer and forms a second tube bundle channel with a lower wing of the stringer.

In some embodiments, the auxiliary support is further provided with a connecting support, the connecting support is also provided with wiring holes arranged at intervals, and the extending direction of the connecting support is the same as the extending direction of the connecting beam.

In some embodiments, the connecting member includes a base fixed to the longitudinal beam, the tow hook is disposed on the base, and the tow hook and the base are integrally cast.

In a second aspect, a commercial vehicle is provided, comprising a frame assembly as described above.

The technical scheme provided by the invention has the beneficial effects that:

the embodiment of the invention provides a frame assembly and a commercial vehicle, wherein a connecting piece is arranged on a beam assembly, a towing hook is arranged on the connecting piece, the integration of the towing hook and a beam is completed, the connecting piece and a bumper bracket share a first fastening piece to realize fixed connection, the overlapping of the mounting area of the bumper bracket and the connecting piece on a longitudinal beam can be realized, the mounting difficulty at the longitudinal beam is reduced, the corresponding position of the towing hook and the bumper bracket can be ensured, the size of the bumper bracket is prevented from being adjusted to adapt to the position of a window of the towing hook and the bumper, and the standardization of the bumper bracket can be improved. Therefore, the integration of the cross beam and the towing hook is realized, the number of parts mounted on the front part of the longitudinal beam is reduced, the mounting area overlapping of the bumper bracket and the cross beam assembly can be realized, the mounting space of the front end of the vehicle is saved, and the design difficulty and the assembly difficulty of the front end of the vehicle frame are reduced.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic perspective view of a front end of a frame assembly according to an embodiment of the present invention;

FIG. 2 is a schematic perspective view of a beam assembly according to an embodiment of the present invention;

fig. 3 is a schematic front view of a connector according to an embodiment of the present invention;

fig. 4 is a schematic front view of a structure of a support of a tilting cylinder according to an embodiment of the present invention;

fig. 5 is a schematic top view of the tilt cylinder bracket according to the embodiment of the present invention.

In the figure:

1. a stringer;

2. a beam assembly; 21. a connecting member; 211. towing hooks; 212. a base; 213. a first boss; 214. a beam hole; 215. reinforcing ribs; 216. a first limiting hole; 217. a second limiting hole; 218. a third limiting hole;

22. a connecting beam;

3. a bumper bracket; 31. a first mounting hole;

4. turning over the oil cylinder bracket; 41. a second mounting hole; 42. a stepped shaft; 43. a bolt hole;

5. a cab suspension bracket; 51. a third mounting hole;

6. and (5) turning over the oil cylinder.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

The embodiment of the invention provides a frame assembly and a commercial vehicle, which can solve the problem that in the related technology, a bumper bracket, a front towing hook and a cross beam are arranged at the front end of the vehicle at the same time and are difficult to arrange.

Referring to fig. 1 to 5, an embodiment of the present invention provides a frame assembly, which may include: the connecting structure comprises two longitudinal beams 1 and a cross beam assembly 2, wherein the cross beam assembly 2 is connected with the two longitudinal beams 1, the cross beam assembly 2 comprises a connecting beam 22, two ends of the connecting beam 22 are respectively fixed with a connecting piece 21, each connecting piece 21 is fixedly connected with the corresponding longitudinal beam 1, at least one connecting piece 21 is provided with a towing hook 211, and the connecting piece 21 is provided with a first limit hole 216; the bumper bracket 3 is provided with a first mounting hole 31; the first fastening piece sequentially penetrates through the first limiting hole 216 and the first mounting hole 31, and fixedly connects the bumper bracket 3 with the connecting piece 21. That is, the connecting beam 22 is fixed to the side members 1 by the connecting members 21, and the two side members 1 are connected by connecting the connecting members 21 to both ends of the connecting beam 22. Because connecting piece 21 through being equipped with tow hook 211 links to each other beam assembly 2 with longeron 1, when dragging the vehicle, partial tow pulling force can directly transmit to longeron 1 through connecting piece 21, compares original tow hook setting in beam assembly's central zone, has reduced the tow pulling force that transmits to tie-beam 22, has reduced beam assembly 2 because the risk of towing pulling force deformation. Wherein, first fastener can be the bolt, realizes bumper bracket 3 and connecting piece 21 fixed connection through cooperating with the nut.

Because the towing hook 211 is arranged on at least one connecting piece 21, the towing hook 211 and the connecting beam 22 can share one area of the longitudinal beam 1, the occupation of the area of the longitudinal beam 1 is reduced, and the design and the arrangement during installation are convenient. In this embodiment, the connecting members 21 on both sides of the connecting beam 22 are substantially symmetrically disposed. So as to ensure that the bumper brackets 3 arranged at the two sides are symmetrically distributed. The bumper bracket 3 is fixedly connected with the connecting member 21 by the first fastening member sequentially passing through the first limit hole 216 formed in the connecting member 21 and the first mounting hole 31 formed in the bumper bracket 3. In this embodiment, the first fastening member also penetrates the side member 1 to improve the connection strength of the bumper stay 3 and the side member 1.

In this embodiment, the connecting member 21 is fixed to the longitudinal beams 1 by riveting, and after the two connecting members 21 on the cross beam assembly 2 are fixed to the two longitudinal beams 1, the bumper bracket 3 is fixedly connected to the connecting members 21. Because bumper bracket 3 and connecting piece 21 fixed connection, then can guarantee to install the relative position between the tow hook 211 on bumper bracket 3 and connecting piece 21, compare bumper bracket 3 and connecting piece 21 setting of staggering, can avoid because the restriction of longeron 1 installation space leads to in different motorcycle types bumper bracket 3 and the relative position of tow hook 211 different, and then need adjust the size of bumper bracket 3 and remove the position of adaptation tow hook 211 and bumper window. That is to say, through sharing first fastener with bumper bracket 3 and connecting piece 21, reduced both to longeron 1 installation space's occupation, reduced the design of frame front end and the degree of difficulty of assembly. And the relative position of the bumper bracket 3 and the towing hook 211 is ensured to be unchanged, the adjustment of the size of the bumper bracket 3 is reduced, and the generalization of the product is improved.

Referring to fig. 3, four first limiting holes 216 are formed in the connecting member 21, and the four first limiting holes 216 are formed in the front end of the connecting member 21, so as to meet the installation requirement of the bumper bracket 3 and ensure that the bumper bracket 3 extends out of the longitudinal beam 1. Referring to fig. 1, the bumper bracket 3 is an L-shaped plate, and is fixed to the connecting member 21 and the longitudinal beam 1 by a portion of the L-shaped plate, and fixed to the bumper by another portion of the L-shaped plate extending out of the front portion of the longitudinal beam 1. Wherein, the bumper bracket 3 is fixed on the outer side of the longitudinal beam 1, and the bumper bracket 3 is connected with the connecting piece 21 by a first fastener penetrating through the longitudinal beam 1. Alternatively, the bumper stay 3 is fixed to the inner side of the side member 1 and interposed between the connecting member 21 and the side member 1, thereby improving the connection strength of the bumper stay 3.

In this embodiment, each longitudinal beam 1 is provided with a bumper bracket 3, wherein the bumper bracket 3 on the left longitudinal beam and the bumper bracket 3 on the right longitudinal beam are arranged in axial symmetry.

In this embodiment, the cross beam assembly 2 is fixed on the longitudinal beam 1 through the connecting member 21 at the end of the connecting beam 22, and compared with the conventional cross beam which is riveted with the upper and lower surfaces of the longitudinal beam through the upper and lower wing surfaces of the cross beam so as not to be attached, the cross beam does not occupy the upper and lower wing surfaces of the longitudinal beam 1, and facilitates the arrangement of other parts on the upper and lower wing surfaces of the longitudinal beam 1.

In this embodiment, the connecting member 21 includes a base 212 fixed to the longitudinal beam 1, the tow hook 211 is disposed on the base 212, and the tow hook 211 and the base 212 are integrally cast. The connection strength between the base 212 and the towing hook 211 is improved through integral casting molding. In this embodiment, the connecting member 21 is QT400 nodular cast iron, and has good mechanical properties, high strength, high toughness, and high wear resistance. .

Referring to fig. 1 to 4, in some alternative embodiments, a second limiting hole 217 is further formed on the connecting member 21; a turnover oil cylinder bracket 4 is further fixed on the outer side of the longitudinal beam 1, and a second mounting hole 41 is formed in the turnover oil cylinder bracket 4; the frame assembly further comprises a second fastening piece, and the second fastening piece sequentially penetrates through the second limiting hole 217 and the second mounting hole 41 to fixedly connect the turnover oil cylinder support 4 with the connecting piece 21. That is to say, the positioning of the turnover oil cylinder support 4 is realized through the second limiting hole 217 of the connecting piece 21, the overlapping of the installation area of the turnover oil cylinder support 4 and the connecting piece 21 on the longitudinal beam 1 is realized, the occupation of the installation area on the longitudinal beam 1 is reduced, and the difficulty of the design and the assembly process is reduced. Referring to fig. 3, the connecting member 21 is provided with two second limiting holes 217, and the two second limiting holes 217 are disposed at the rear side of the connecting member 21, so that the interference between the turnover cylinder bracket 4 and the bumper bracket 3 in the installation process is avoided by disposing the second limiting holes 217 and the first limiting holes 216 at the front and rear sides of the connecting member 21, respectively. In this embodiment, the tilting cylinder bracket 4 is an iron casting for supporting the tilting cylinder of the cab, and is low in cost and wear-resistant. In this embodiment, three second mounting holes 41 are formed in the turnover cylinder bracket 4, and only two second limiting holes 217 are formed in the connecting member 21, that is, two second fasteners correspondingly pass through the two second limiting holes 217, so that the turnover cylinder bracket 4 is fixedly connected with the connecting member 21, and then the other fasteners pass through the remaining second mounting holes 41 and the mounting holes in the longitudinal beam 1, thereby reinforcing the turnover cylinder bracket 4. So that the overturning oil cylinder bracket 4 is fixed on the longitudinal beam 1. Wherein, the second fastener can be the bolt, realizes turning over hydro-cylinder support 4 and connecting piece 21 fixed connection through cooperating with the nut.

Referring to fig. 1, 4 and 5, in some alternative embodiments, a stepped shaft 42 is arranged on the tilt cylinder bracket 4, the stepped shaft 42 is perpendicular to the longitudinal beam 1, the diameter of the stepped shaft 42 gradually decreases in a direction away from the longitudinal beam 1, a latch hole 43 is arranged on the stepped shaft 42, and the axis of the latch hole 43 is perpendicular to the axis of the stepped shaft 42; the frame assembly further comprises a turning oil cylinder 6, one end of the turning oil cylinder 6 is provided with a positioning hole, the positioning hole is sleeved outside the stepped shaft 42, and a bolt is arranged in the bolt hole 43 so as to lock the turning oil cylinder 6 on the stepped shaft 42. That is to say, the positioning hole of the turnover oil cylinder 6 is sleeved on the stepped shaft 42 to axially position the turnover oil cylinder 6, and the pin hole 43 is formed in the stepped shaft 42 to allow a pin to be inserted into the pin hole to lock the turnover oil cylinder 6, so that the turnover oil cylinder 6 is prevented from being separated from the stepped shaft 42. Wherein, can set up bolt hole 43 and keep away from the minimum diametric axis department of longeron 1 one end at step shaft 42, establish upset hydro-cylinder 6 cover on the second minor diametric axis, insert in bolt hole 43 through the bolt, avoid upset hydro-cylinder 6 to move outward along the axial of step shaft 42, and then realize the locking to upset hydro-cylinder 6. In this embodiment, the cotter pin is selected for the plug pin.

Referring to fig. 1 and 3, in some alternative embodiments, a third limiting hole 218 is further formed on the connecting member 21; a cab suspension bracket 5 is further fixed on the longitudinal beam 1, a third mounting hole 51 is formed in the cab suspension bracket 5, the frame assembly further comprises a third fastening piece, and the third fastening piece sequentially penetrates through the third limiting hole 218 and the third mounting hole 51 to fixedly connect the cab suspension bracket 5 and the connecting piece 21. That is, the cab suspension bracket 5 is fixedly coupled to the coupling member 21 by the third fastening member. In this embodiment, the cab suspension bracket 5 is fixed to the outer side of the longitudinal beam 1, the connecting member 21 is fixed to the inner side of the longitudinal beam 1, and the third fastening member sequentially penetrates through the connecting member 21, the longitudinal beam 1, and the cab suspension bracket 5. The driver's cabin suspension support 5, the longitudinal beam 1 and the connecting piece 21 are fixed, the connecting piece 21 and the driver's cabin suspension support 5 are overlapped in the installation area of the longitudinal beam 1, and the design difficulty and the assembly difficulty of the front end of the longitudinal beam 1 are reduced. Referring to fig. 3, the third limiting hole 218 is provided at the rear side of the connecting member 21, and the first limiting hole 216 is provided at the front side of the connecting member 21, so that the interference between the cab suspension bracket 5 and the bumper bracket 3 during installation is avoided by staggering the third limiting hole 218 and the first limiting hole 216 in the front-rear direction. In this embodiment, the cab suspension bracket 5 includes a vertical casting and a rubber member, and the bottom structure is a vertical casting structure for connecting with the longitudinal beam 1. Wherein, the third fastener can be a bolt, and realizes fixedly connecting the cab suspension bracket 5 and the connecting piece 21 by matching with a nut.

Referring to fig. 1, in some alternative embodiments, the cab suspension bracket 5 includes a first fixing plate and a second fixing plate perpendicular to each other, and the first fixing plate is provided with the third mounting hole 51; when the cab suspension bracket 5 is fixedly connected with the connecting piece 21, the top surface of the second fixing plate is attached to the upper inner wall of the longitudinal beam 1. That is to say, the third fastener passes third mounting hole 51 on the first fixed plate and spacing hole 218 of the third on the connecting piece 21, realizes driver's cabin suspension support 5 and connecting piece 21 fixed connection, through the top surface with the second fixed plate with the last inner wall laminating of longeron 1, realize the supplementary fixed to driver's cabin suspension support 5, improve the fixed stability of driver's cabin suspension support 5. In this embodiment, the second fixing plate is provided with a through hole, and a bolt penetrates through the through hole and the longitudinal beam 1 and then is connected with a mounting nut, so that the second fixing plate of the cab suspension bracket 5 is fixed on the upper wing surface of the longitudinal beam 1.

Referring to fig. 1 to 3, in some alternative embodiments, the connecting member 21 includes a base 212, the base 212 is fixedly connected to the longitudinal beam 1, a first boss 213 is disposed on the base 212, and the first boss 213 is provided with a beam hole 214; one end of the connecting beam 22 is inserted into the cross beam hole 214 and fixedly connected with the base 212. That is to say, insert in the crossbeam hole 214 of connecting piece 21 through tie-beam 22, realize the fixed connection of tie-beam 22 and connecting piece 21, because crossbeam hole 214 is located in first boss 213, when towing hook 211 receives the pulling force, base 212 transmits the pulling force to the longeron 1 that links to each other with base 212, reduced the atress that transmits to tie-beam 22, lightened the crooked risk of crossbeam assembly 2, base 212 transmits another part towing force to first boss 213, transmit the pulling force to tie-beam 22 through first boss 213, can encircle the end of tie-beam 22 a circle through first boss 213, make tie-beam 22 receive the pulling force while, still can receive the support of first boss 213, reduce the crooked risk of tie-beam 22.

Referring to fig. 3, in some alternative embodiments, the first boss 213 is provided with a rib 215 on the outer side. That is to say, the strength of the first boss 213 is improved by the reinforcing ribs 215 arranged outside the first boss 213, in this embodiment, a plurality of reinforcing ribs 215 are arranged outside the first boss 213, and the reinforcing ribs 215 are uniformly distributed at intervals along the circumferential direction of the first boss 213, so as to realize the same reinforcement for each position of the first boss 213. In this embodiment, the reinforcing ribs 215 are formed by casting integrally with the first boss 213, and in other embodiments, the number of the reinforcing ribs 215 on the first boss 213 may be increased by welding.

In alternative embodiments, the connecting beam 22 is inserted into the beam hole 214 and socket welded to the base 212. That is, the coupling beam 22 is coupled to the base 212 by socket welding the coupling beam 22 inserted into the beam hole 214. Compared with butt welding, the socket welding does not need to be beveled, the problem of butt joint misalignment does not exist during welding, meanwhile, the welding position can be adjusted to be flat welding, the operation difficulty during welding is low, the welding quality is good, and the detection is convenient after welding.

Referring to fig. 1 and 2, in some alternative embodiments, the connecting beam 22 is a tubular beam, and a plurality of auxiliary brackets are arranged on the connecting beam 22 at intervals, and the auxiliary brackets are all provided with wiring holes. That is to say, adopt the tubular beams as tie-beam 22, compare in the channel beam, the volume of tubular beams occupies littleer, facilitates the arrangement of whole car electric wire harness, brake tube bank and driver's cabin upset oil pipe. And the outer sides of the connection beams 22 of the tubular beams can be used for arranging the pipelines, which is more convenient than arranging the pipelines in the groove boxes of the groove beams. By providing auxiliary brackets spaced apart from the tie-beam 22, clips or ties may be provided on the auxiliary brackets to route the electrical wiring harness, brake bundles, and cab roll-over tubing. Wherein the structure of fixing the wire harness such as the clamp, the ribbon and the like can be arranged in the wiring hole arranged on the auxiliary bracket. In this embodiment, the connecting beam 22 is a hollow long cylinder with a uniform cross-section. Convenient production and low cost.

In some embodiments, the connecting member 21 is fixed to the vertical surface of the longitudinal beam 1, and the connecting member 21 and the upper wing surface of the longitudinal beam 1 form a first tube bundle channel, and the connecting member 21 and the lower wing surface of the longitudinal beam 1 form a second tube bundle channel. Because the connecting beam 22 is fixed on the vertical surface of the longitudinal beam 1 through the connecting piece 21 fixed at the end part, compared with the upper wing surface and the lower wing surface of the longitudinal beam 1 to which the channel beam needs to be fixed, the beam assembly 2 provided by the embodiment has a gap with the upper wing surface and the lower wing surface of the longitudinal beam 1 after being installed, and a pipeline can pass through the beam assembly 2 through the gap between the beam assembly 2 and the upper wing surface and the lower wing surface of the longitudinal beam 1, so that the arrangement of the pipeline is facilitated. Compared with a channel beam, the arrangement of pipelines is greatly facilitated.

Referring to fig. 1 and 2, in some alternative embodiments, a connecting bracket is further disposed on the auxiliary bracket, the connecting bracket is also provided with wiring holes disposed at intervals, and an extending direction of the connecting bracket is the same as an extending direction of the connecting beam 22. That is, the auxiliary pipeline can be positioned by the connecting bracket having the same extending direction as the connecting beam 22, and the pipeline fixed on the connecting bracket can be conveniently extended along the connecting beam by setting the extending direction of the connecting bracket to be the same as the extending direction of the connecting beam 22. In this embodiment, only seted up one row of wiring hole on the linking bridge, and the wiring hole is arranged along the direction interval that coupling beam 22 extends, in other embodiments, can set up the wiring hole of multirow on the linking bridge to improve the density in wiring hole, be convenient for the arrangement of pipeline. In this embodiment, a plurality of spaced auxiliary stands are connected to the linking bridge, when being convenient for the pipeline to arrange, have improved auxiliary stand's intensity.

The embodiment of the invention also provides a commercial vehicle which comprises the frame assembly. Through locating towing pintle 211 on connecting piece 21 to utilize connecting piece 21 to connect longeron 1 and tie-beam 22, it is narrow and small to have avoided crossbeam assembly 2 and towing pintle 211 to arrange simultaneously in the front end of longeron 1 and lead to longeron 1 front end to arrange the space, the problem of design assembly difficulty. Because the tow hook 211 is arranged on the connecting piece 21 fixed on the longitudinal beam 1, when the tow hook 211 is subjected to towing force, the tow hook 211 can directly transmit the towing force part to the longitudinal beam 1, the towing force transmitted to the connecting beam 22 is reduced, and the risk of deformation of the connecting beam 22 is reduced. Due to the fact that the first fastening piece is arranged, the first fastening piece can sequentially penetrate through the first limiting hole 216 formed in the connecting piece 21 and the first mounting hole 31 formed in the bumper support 3, the bumper support 3 is fixedly connected with the connecting piece 21, and the relative position between the bumper and the towing hook 211 is consistent after the bumper is mounted. The relative position of the connecting piece 21 and the bumper bracket 3 is prevented from being changed due to the fact that the mounting position of the bumper bracket 3 is adjusted in the mounting space of the longitudinal beam 1, and further the bumper bracket 3 needs to be adjusted to ensure the relative position of the towing hook 211 and the bumper window, so that the bumper bracket 3 is large in size and variety. Is beneficial to generalization and is convenient for subsequent replacement and maintenance.

The frame assembly and the commercial vehicle provided by the embodiment of the invention have the following principles:

through setting up towing pintle 211 on connecting 21 between longeron 1 and tie-beam 22, make crossbeam assembly 2 and towing pintle 211 sharing connecting piece 21 fix on longeron 1, not only reduced the occupation to longeron 1 space, improved the utilization ratio to installation space, and the power of dragging towing pintle 211 only partially transmits to the tie-beam 22 on, partly drag the pulling force and directly transmit to longeron 1 on, the risk that tie-beam 22 warp has been reduced, frame assembly's stability has been improved. Meanwhile, the connecting piece 21 is fixedly connected with the bumper bracket 3 through the first fastening piece, the occupation of the front end space of the longitudinal beam 1 can be reduced in a mode of overlapping the installation space, and the design and the assembly of the front end of the longitudinal beam 1 with limited installation space are facilitated. The occupation of the front end installation space of the longitudinal beam 1 is reduced, the design difficulty and the assembly difficulty of the front end space of the longitudinal beam 1 are reduced, the original dragging force of all the guide connecting beams 22 can be partially and directly guided to the longitudinal beam 1, and the deformation risk of the connecting beams 22 is reduced.

In the description of the present invention, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present invention. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "coupled" are to be construed broadly and encompass, for example, both fixed and removable coupling as well as integral coupling; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

It is to be noted that, in the present invention, relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a," "8230," "8230," or "comprising" does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.

The foregoing are merely exemplary embodiments of the present invention, which enable those skilled in the art to understand or practice the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to 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

1. A frame assembly, comprising:

the connecting structure comprises two longitudinal beams (1) and a cross beam assembly (2), wherein the cross beam assembly (2) is connected with the two longitudinal beams (1), the cross beam assembly (2) comprises a connecting beam (22), two connecting pieces (21) are respectively fixed at two ends of the connecting beam (22), each connecting piece (21) is fixedly connected with the corresponding longitudinal beam (1), at least one connecting piece (21) is provided with a towing hook (211), and the connecting piece (21) is provided with a first limiting hole (216);

the bumper support (3) is provided with a first mounting hole (31);

the first fastening piece sequentially penetrates through the first limiting hole (216) and the first mounting hole (31) to fixedly connect the bumper bracket (3) with the connecting piece (21).

2. The frame assembly of claim 1, wherein:

a second limiting hole (217) is formed in the connecting piece (21);

a turnover oil cylinder support (4) is further fixed on the outer side of the longitudinal beam (1), and a second mounting hole (41) is formed in the turnover oil cylinder support (4);

the frame assembly further comprises a second fastening piece, the second fastening piece sequentially penetrates through the second limiting hole (217) and the second mounting hole (41), and the turnover oil cylinder support (4) is fixedly connected with the connecting piece (21).

3. A frame assembly according to claim 2, wherein:

a stepped shaft (42) is arranged on the overturning oil cylinder support (4), the stepped shaft (42) is perpendicular to the longitudinal beam (1), the diameter of the stepped shaft (42) is gradually reduced along the direction far away from the longitudinal beam (1), a bolt hole (43) is formed in the stepped shaft (42), and the axis of the bolt hole (43) is perpendicular to the axis of the stepped shaft (42);

the frame assembly further comprises a turning oil cylinder (6), a positioning hole is formed in one end of the turning oil cylinder (6), the positioning hole is sleeved outside the stepped shaft (42), and a bolt is arranged in the bolt hole (43) so that the turning oil cylinder (6) can be locked on the stepped shaft (42).

4. A frame assembly according to claim 1, wherein:

a third limiting hole (218) is formed in the connecting piece (21);

a cab suspension bracket (5) is further fixed on the longitudinal beam (1), and a third mounting hole (51) is formed in the cab suspension bracket (5);

the frame assembly further comprises a third fastening piece, and the third fastening piece sequentially penetrates through the third limiting hole (218) and the third mounting hole (51) to fixedly connect the cab suspension bracket (5) with the connecting piece (21).

5. The frame assembly of claim 4, wherein:

the cab suspension bracket (5) comprises a first fixing plate and a second fixing plate which are perpendicular to each other, and the first fixing plate is provided with a third mounting hole (51);

when the cab suspension bracket (5) is fixedly connected with the connecting piece (21), the top surface of the second fixing plate is attached to the upper inner wall of the longitudinal beam (1).

6. A frame assembly according to claim 1, wherein:

the connecting piece (21) comprises a base (212), the base (212) is fixedly connected with the longitudinal beam (1), a first boss (213) is arranged on the base (212), and a transverse beam hole (214) is formed in the first boss (213);

one end of the connecting beam (22) is inserted into the cross beam hole (214) and is fixedly connected with the base (212).

7. The frame assembly of claim 6, wherein:

and reinforcing ribs (215) are arranged on the outer sides of the first bosses (213).

8. A frame assembly according to claim 1, wherein:

the utility model discloses a wiring structure, including tie-beam (22), coupling beam (22) are the tubular beams, just the interval is provided with a plurality of auxiliary stand on tie-beam (22), all seted up the wiring hole on the auxiliary stand.

9. A frame assembly according to claim 8, wherein:

the auxiliary support is further provided with a connecting support, the connecting support is also provided with wiring holes arranged at intervals, and the extending direction of the connecting support is the same as that of the connecting beam (22).

10. A commercial vehicle, characterized in that:

the commercial vehicle comprising a frame assembly according to any one of claims 1-9.