CN107512312B - A heavy-duty vehicle frame front section assembly - Google Patents

A heavy-duty vehicle frame front section assembly Download PDF

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Publication number
CN107512312B
CN107512312B CN201710850738.0A CN201710850738A CN107512312B CN 107512312 B CN107512312 B CN 107512312B CN 201710850738 A CN201710850738 A CN 201710850738A CN 107512312 B CN107512312 B CN 107512312B
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Prior art keywords
front section
main longitudinal
longitudinal beam
connecting plate
cross beam
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CN107512312A (en
Inventor
王建帅
王斌
高中美
陈立付
房杉
曹建宏
刘国庆
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China National Heavy Duty Truck Group Jinan Power Co Ltd
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China National Heavy Duty Truck Group Jinan Power Co Ltd
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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
    • B60—VEHICLES IN GENERAL
    • B60D—VEHICLE CONNECTIONS
    • B60D1/00—Traction couplings; Hitches; Draw-gear; Towing devices
    • B60D1/01—Traction couplings or hitches characterised by their type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D33/00—Superstructures for load-carrying vehicles
    • B62D33/06—Drivers' cabs

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  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Body Structure For Vehicles (AREA)

Abstract

本发明公开一种重型汽车车架前段总成，包括前段前主纵梁、前段后主纵梁、前段第一横梁、前段第二横梁和前牵引钩支架，所述前段后主纵梁为L形，前段后主纵梁的水平部与前段第二横梁连接，前段后主纵梁非与第二横梁连接的端部为向上延伸的竖直部；前段前主纵梁上开有销孔，销轴穿过驾驶室前悬置架和前段前主纵梁上的销孔使驾驶室前悬置支架固定到车架前段总成上，前段后主纵梁上设有与驾驶室后悬置支架相连接的后支架。本发明降低了驾驶室高度，降低了整车风阻，提高了驾乘舒适性。

The invention discloses a front section assembly of a heavy-duty vehicle frame, which includes a front main longitudinal beam, a rear main longitudinal beam, a first crossbeam in the front section, a second crossbeam in the front section and a front traction hook bracket. The rear main longitudinal beam in the front section is L Shape, the horizontal part of the rear main longitudinal beam of the front section is connected to the second cross beam of the front section, and the end of the rear main longitudinal beam of the front section that is not connected to the second cross beam is a vertical part extending upward; there is a pin hole on the front main longitudinal beam of the front section, The pin passes through the pin hole on the front suspension frame of the cab and the front main longitudinal beam of the front section to fix the front suspension bracket of the cab to the front section assembly of the frame. The rear main longitudinal beam of the front section is provided with the rear suspension frame of the cab. The rear bracket is connected to the bracket. The invention reduces the height of the cab, reduces the wind resistance of the entire vehicle, and improves driving comfort.

Description

Front section assembly of heavy-duty car frame
Technical Field
The invention relates to a front section assembly of a heavy-duty car frame, and belongs to the technical field of heavy-duty cars.
Background
The existing heavy-duty car cab is generally higher, so that the wind resistance coefficient of the whole car is larger, and the oil consumption of the whole car is higher. And the cab is high in position, so that drivers are inconvenient to get on and off, and driving comfort is reduced.
Disclosure of Invention
Aiming at the defects of the prior art, the technical problem to be solved by the invention is to provide the front section assembly of the heavy-duty car frame, which reduces the height of a cab, reduces the wind resistance of the whole car and improves the riding comfort.
In order to solve the technical problems, the invention adopts the following technical scheme: a front section assembly of a heavy-duty car frame comprises a front section front main longitudinal beam, a front section rear main longitudinal beam, a front section first cross beam, a front section second cross beam and a front traction hook bracket, wherein the front section second cross beam is vertically connected between the front section front main longitudinal beam and the front section rear main longitudinal beam, and the front section first cross beam and the front traction hook bracket are connected to one end of the front section front main longitudinal beam, which is not connected with the front section second cross beam; the front section rear main longitudinal beam is L-shaped, the horizontal part of the front section rear main longitudinal beam is connected with the front section second cross beam, and the end part of the front section rear main longitudinal beam, which is not connected with the second cross beam, is an upward extending vertical part; the front section front main longitudinal beam is provided with a pin hole, the pin shaft penetrates through the cab front suspension frame and the pin hole on the front section front main longitudinal beam to enable the cab front suspension bracket to be fixed on the frame front section assembly, and the front section rear main longitudinal beam is provided with a rear bracket connected with the cab rear suspension bracket.
The invention also discloses a front section assembly of the side frame of the heavy-duty car, which comprises a connecting plate, a connecting plate beam and a connecting plate longitudinal beam, wherein the connecting plate beam is vertically welded on the front main longitudinal beam of the front section, one end of the connecting plate is connected with the connecting plate beam and the connecting plate longitudinal beam, the other end of the connecting plate is provided with a pin hole for a pin shaft to pass through, one end of the connecting plate longitudinal beam is connected with the connecting plate beam, and the other end of the connecting plate longitudinal beam is connected to the second cross beam of the front section.
Further, a front section front main longitudinal beam shaft sleeve is arranged on a pin hole of the front section front main longitudinal beam, and a connecting plate shaft sleeve is arranged on a pin hole of the connecting plate.
The front section assembly of the side frame of the heavy-duty car also comprises an inclined beam and a rear bracket beam, wherein the rear bracket is fixed on the front section rear main longitudinal beam through the rear bracket beam, one end of the inclined beam is connected with the front section second beam, and the other end of the inclined beam is connected to the rear bracket beam.
Further, a front traction hook is connected to the front traction hook bracket.
The front section assembly of the side frame of the heavy-duty car comprises 2 front section rear main longitudinal beams, 4 front section front main longitudinal beams, 4 front section rear main longitudinal beams, 2 front section front main longitudinal beams, two front section front main longitudinal beams and 2 front traction hook supports, wherein the 2 front section rear main longitudinal beams are connected to one side of a front section second cross beam in parallel, the 4 front section front main longitudinal beams are connected to the other side of the front section second cross beam in parallel, the front section first cross beam is positioned between the middle two front section front main longitudinal beams, and the 2 front traction hook supports are respectively positioned at two ends of the front section first cross beam.
The invention relates to a front section assembly of a side frame of a heavy-duty car, wherein a front section third cross beam is arranged between two front section rear main longitudinal beams.
According to the front section assembly of the side frame of the heavy-duty car, the first cross beam of the front section is provided with the reinforcing ribs, the first cross beam of the front section is connected with a plurality of sheet metal parts extending towards the rear part of the front section assembly, and the sheet metal parts are provided with a plurality of round holes.
According to the front section assembly of the side frame of the heavy-duty car, the end part of the front section front main longitudinal beam, which is connected with the front section first cross beam, extends upwards, and the height of the front section front main longitudinal beam extending upwards is lower than that of the vertical part of the front section rear main longitudinal beam.
According to the front section assembly of the side frame of the heavy-duty car, the horizontal part and the vertical part of the front section rear main longitudinal beam are transited through an arc.
The invention has the beneficial effects that: the front section assembly of the frame is designed into an L-shaped structure, namely the height of the rear part of the front section assembly of the frame is larger than that of the front part, so that the height of a cab can be effectively reduced, the front part of the front section of the frame is connected with the front suspension of the cab through a pin shaft, and the rear part of the front section of the frame is connected with the rear suspension bracket of the cab through a bracket. In order to ensure the space inside the cab, the front section and the rear main longitudinal beam of the frame adopt a rear high front low variable cross-section structure; in order to ensure the installation space of the front traction hook and the front suspension bracket of the cab, the front part of the front section assembly of the frame adopts a mode of combining a main longitudinal beam structure with a sheet metal part; in order to ensure the strength of the front traction hook bracket, the front traction hook bracket is welded on the front main longitudinal beam of the front section of the frame; in order to ensure the strength of the front section assembly of the frame, the reinforcing ribs are added to the first cross beam of the front section, and the sheet metal parts extending backwards are added to the first cross beam of the front section.
Drawings
FIG. 1 is a front view of a cab installation;
FIG. 2 is a schematic view of the structure of a cab suspension bracket;
FIG. 3 is a schematic structural view of a front frame assembly;
in the figure: 1. cab, 2, frame front section assembly, 3, frame main longitudinal beam, 4, cab front suspension bracket, 5, cab rear suspension bracket, 6, front section rear main longitudinal beam, 7, front section second cross beam, 8, front section front main longitudinal beam, 9, front section third cross beam, 10, front towing hook bracket, 11, front section first cross beam, 12, front towing hook, 13, front section front main longitudinal beam axle sleeve, 14, connecting plate, 15, connecting plate axle sleeve, 16, connecting plate cross beam, 17, connecting plate longitudinal beam, 18, oblique beam, 19, rear bracket cross beam, 20, rear bracket, 21, sheet metal component.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
As shown in fig. 1 and 2, the cab 1 is mounted to the front frame assembly 2 by 2 front cab suspension brackets 4 and 2 rear cab suspension brackets 5, and the front frame assembly 2 is welded to the main frame rail 3.
As shown in fig. 3, a schematic structural diagram of a front section assembly of the frame according to the present embodiment includes a front section front main longitudinal beam 8, a front section rear main longitudinal beam 6, a front section first cross member 11, a front section second cross member 7, and a front towing hook bracket 10, wherein the front section second cross member 7 is vertically connected between the front section front main longitudinal beam 8 and the front section rear main longitudinal beam 6, and the front section first cross member 11 and the front towing hook bracket 10 are connected to one end of the front section front main longitudinal beam 8 that is not connected with the front section second cross member 7; the front section rear main longitudinal beam 6 is L-shaped, the horizontal part of the front section rear main longitudinal beam 6 is connected with the front section second cross beam 7, and the end part of the front section rear main longitudinal beam 6 which is not connected with the second cross beam 7 is an upward extending vertical part; the front section front main longitudinal beam 8 is provided with a pin hole, a pin shaft passes through the pin holes on the cab front suspension bracket 4 and the front section front main longitudinal beam 8 to fix the cab front suspension bracket 4 on the frame front section assembly 2, and the front section rear main longitudinal beam 6 is provided with a rear bracket 20 connected with the cab rear suspension bracket 5.
In this embodiment, the front main longitudinal beam 8 of the front section is provided with a connecting plate 14, a connecting plate cross beam 16 and a connecting plate longitudinal beam 17, the connecting plate cross beam 15 is welded on the front main longitudinal beam 8 of the front section vertically, one end of the connecting plate 14 is welded with the connecting plate cross beam 16 and the connecting plate longitudinal beam 17 together, the other end of the connecting plate 14 is provided with a pin hole for passing through a pin shaft, one end of the connecting plate longitudinal beam 17 is connected with the connecting plate cross beam 16, and the other end is connected to the second cross beam 7 of the front section. The pin hole of the front section front main longitudinal beam 8 is provided with a front section front main longitudinal beam shaft sleeve 13, and the pin hole of the connecting plate 14 is provided with a connecting plate shaft sleeve 15.
In this embodiment, the front section rear main longitudinal beam 6 is provided with an oblique beam 18 and a rear bracket cross beam 19, the rear bracket 20 is fixed on the front section rear main longitudinal beam 6 through the rear bracket cross beam 19, one end of the oblique beam 18 is connected with the front section second cross beam 7, and the other end is connected to the rear bracket cross beam 19.
Further, a front hitch 12 is connected to the front hitch bracket 10.
In this embodiment, the number of front and rear main stringers 6 is 2, the number of front main stringers 8 is 4, 2 front and rear main stringers 6 are connected in parallel to one side of the front second cross member 7, 4 front main stringers 8 are connected in parallel to the other side of the front second cross member 7, the front first cross member 11 is located between the middle two front main stringers, and the front towing hook brackets 10 are 2 and located at two ends of the front first cross member 11. A front section third cross beam 9 is also arranged between the two front section rear main longitudinal beams 6.
In order to ensure the strength of the front section assembly, the first cross beam 11 of the front section is provided with reinforcing ribs, the first cross beam 11 of the front section is connected with a plurality of sheet metal parts 21 extending towards the rear part of the front section assembly, and the sheet metal parts 21 are provided with a plurality of round holes.
For easy installation of the front towing hook, the end of the front section front main longitudinal beam 8 connected with the front section first cross beam extends upward, and the height of the front section front main longitudinal beam 8 extending upward is lower than the height of the vertical part of the front section rear main longitudinal beam 6.
In this embodiment, the horizontal portion and the vertical portion of the front-section rear main longitudinal member 6 are excessively curved.
When the front suspension bracket 4 is installed, the front suspension bracket 4 is fixed to the front frame assembly 2 through the front section front main longitudinal beam shaft sleeve 13 and the connecting plate shaft sleeve 15 by pin shafts. The cab rear suspension bracket 5 is fixed to the rear bracket 20 by bolts and nuts.
The embodiment is to reduce the height of the cab, design the overall shape of the front section of the frame into an L-shaped structure under the condition that the approach angle meets the whole vehicle requirement, and connect the front part of the front section of the frame with the front suspension of the cab through a pin shaft and the rear part of the front section of the frame with the rear suspension of the cab through a bracket. In order to ensure the space inside the cab, the front section and the rear main longitudinal beam of the frame adopt a rear high front low variable cross-section structure; in order to ensure the installation space of the front traction hook and the front suspension bracket of the cab, the front part of the front section assembly of the frame adopts a design scheme that a main longitudinal beam structure is combined with a sheet metal part; in order to ensure the strength of the front traction hook bracket, the front traction hook bracket is welded on the front main longitudinal beam of the front section of the frame; in order to ensure the strength of the front section assembly of the frame, the reinforcing ribs are added to the first cross beam of the front section, and the sheet metal parts extending backwards are added to the first cross beam of the front section. The front section of the frame and the rear frame are welded into a whole. The scheme is simple, firm, stable, simple to assemble, low in cost and good in universality.
The foregoing description is only of the basic principles and preferred embodiments of the present invention, and modifications and alternatives thereto will occur to those skilled in the art to which the present invention pertains, as defined by the appended claims.

Claims (8)

1.一种重型汽车车架前段总成，其特征在于：包括前段前主纵梁、前段后主纵梁、前段第一横梁、前段第二横梁和前牵引钩支架，前段第二横梁垂直连接于前段前主纵梁和前段后主纵梁之间，前段第一横梁和前牵引钩支架连接于前段前主纵梁非连接前段第二横梁的一端；所述前段后主纵梁为L形，前段后主纵梁的水平部与前段第二横梁连接，前段后主纵梁非与第二横梁连接的端部为向上延伸的竖直部；前段前主纵梁上开有销孔，销轴穿过驾驶室前悬置架和前段前主纵梁上的销孔使驾驶室前悬置支架固定到车架前段总成上，前段后主纵梁上设有与驾驶室后悬置支架相连接的后支架；1. A front section assembly of a heavy-duty vehicle frame, characterized by: including a front section front main longitudinal beam, a front section rear main longitudinal beam, a front section first cross beam, a front section second cross beam and a front traction hook bracket, and the front section second cross beam is vertically connected Between the front main longitudinal beam of the front section and the rear main longitudinal beam of the front section, the first crossbeam of the front section and the front traction hook bracket are connected to one end of the front main longitudinal beam of the front section that is not connected to the second crossbeam of the front section; the rear main longitudinal beam of the front section is L-shaped. , the horizontal part of the rear main longitudinal beam of the front section is connected to the second cross beam of the front section, and the end of the rear main longitudinal beam of the front section that is not connected to the second cross beam is the vertical part extending upward; there is a pin hole on the front main longitudinal beam of the front section, and the pin The shaft passes through the pin hole on the front suspension frame of the cab and the front main longitudinal beam of the front section to fix the front suspension bracket of the cab to the front section assembly of the frame. The rear main longitudinal beam of the front section is equipped with a rear suspension bracket of the cab. Connected rear bracket; 还包括连接板、连接板横梁和连接板纵梁，连接板横梁垂直焊接在前段前主纵梁上，连接板的一端与连接板横梁、连接板纵梁连接在一起，连接板的另一端上开有供销轴穿过的销孔，连接板纵梁一端与连接板横梁相连接，另一端连接至前段第二横梁；还包括斜梁和后支架横梁，后支架通过后支架横梁固定在前段后主纵梁上，斜梁一端与前段第二横梁相连接，另一端连接至后支架横梁上。It also includes a connecting plate, a connecting plate cross beam and a connecting plate longitudinal beam. The connecting plate cross beam is vertically welded to the front main longitudinal beam of the front section. One end of the connecting plate is connected to the connecting plate cross beam and the connecting plate longitudinal beam. The other end of the connecting plate is connected to the connecting plate cross beam and the connecting plate longitudinal beam. There is a pin hole for the pin shaft to pass through. One end of the connecting plate longitudinal beam is connected to the connecting plate cross beam, and the other end is connected to the second cross beam of the front section; it also includes an inclined beam and a rear bracket cross beam. The rear bracket is fixed behind the front section through the rear bracket cross beam. On the main longitudinal beam, one end of the inclined beam is connected to the second cross beam in the front section, and the other end is connected to the rear bracket cross beam. 2.根据权利要求1所述的重型汽车车架前段总成，其特征在于：前段前主纵梁的销孔上设有前段前总纵梁轴套，连接板的销孔上设有连接板轴套。2. The heavy-duty vehicle frame front section assembly according to claim 1, characterized in that: the pin hole of the front section front main longitudinal beam is provided with a front section front main longitudinal beam bushing, and the pin hole of the connecting plate is provided with a connecting plate. Bushing. 3.根据权利要求1所述的重型汽车车架前段总成，其特征在于：前牵引钩支架上连接有前牵引钩。3. The heavy-duty vehicle frame front section assembly according to claim 1, characterized in that: a front towing hook is connected to the front towing hook bracket. 4.根据权利要求1所述的重型汽车车架前段总成，其特征在于：前段后主纵梁的数量为2根，前段前主纵梁的数量为4根，2根前段后主纵梁平行的连接于前段第二横梁的一侧，4根前段前主纵梁平行的连接于前段第二横梁的另一侧，前段第一横梁位于中间两根前段前主纵梁之间，前牵引钩支架有2个，分别位于前段第一横梁的两端。4. The heavy-duty vehicle frame front section assembly according to claim 1, characterized in that: the number of rear main longitudinal beams in the front section is 2, the number of front main longitudinal beams in the front section is 4, and the two rear main longitudinal beams in the front section are flat. The rows are connected to one side of the front section's second crossbeam. The four front section front main longitudinal beams are connected in parallel to the other side of the front section's second crossbeam. The front section's first crossbeam is located between the two front section front main longitudinal beams. The front traction There are two hook brackets, located at both ends of the first beam in the front section. 5.根据权利要求4所述的重型汽车车架前段总成，其特征在于：两根前段后主纵梁之间还设有前段第三横梁。5. The front section assembly of the heavy-duty vehicle frame according to claim 4, characterized in that: a third front section beam is also provided between the two front section rear main longitudinal beams. 6.根据权利要求1所述的重型汽车车架前段总成，其特征在于：前段第一横梁上设有加强筋，并且前段第一横梁上连接有多个向前段总成后部延伸的钣金件，钣金件上开有多个圆孔。6. The heavy-duty vehicle frame front section assembly according to claim 1, characterized in that: the first cross beam of the front section is provided with reinforcing ribs, and the first cross beam of the front section is connected with a plurality of sheets extending to the rear of the front section assembly. Metal parts and sheet metal parts have multiple round holes. 7.根据权利要求1所述的重型汽车车架前段总成，其特征在于：前段前主纵梁连接前段第一横梁的端部向上延伸，前段前主纵梁向上延伸的高度低于前段后主纵梁竖直部的高度。7. The heavy-duty vehicle frame front section assembly according to claim 1, characterized in that: the end of the front section's front main longitudinal beam connecting the front section's first cross beam extends upward, and the height of the front section's front main longitudinal beam extending upward is lower than the front section's rear section. The height of the vertical part of the main longitudinal beam. 8.根据权利要求1所述的重型汽车车架前段总成，其特征在于：前段后主纵梁的水平部与竖直部之间通过圆弧过渡。8. The heavy-duty vehicle frame front section assembly according to claim 1, characterized in that: the horizontal part and the vertical part of the rear main longitudinal beam of the front section are transitioned through an arc.
CN201710850738.0A 2017-09-20 2017-09-20 A heavy-duty vehicle frame front section assembly Active CN107512312B (en)

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CN115946770B (en) * 2023-02-14 2025-12-23 安徽苇渡控股有限公司 Front auxiliary frame assembly built-in inside frame and mounting method

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CN205971469U (en) * 2016-08-10 2017-02-22 徐州重型机械有限公司 Jack -up vehicle
CN207292132U (en) * 2017-09-20 2018-05-01 中国重汽集团济南动力有限公司 A kind of heavy-duty automobile frame leading portion assembly

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Publication number Priority date Publication date Assignee Title
CN1564766A (en) * 2001-10-02 2005-01-12 麦格纳国际公司 Truck cab space frame
JP2010264774A (en) * 2009-05-12 2010-11-25 Fuji Heavy Ind Ltd Body front structure
CN202378953U (en) * 2011-12-27 2012-08-15 中国重汽集团济南动力有限公司 Front-extending beam device for automobile frame
CN203078599U (en) * 2013-01-11 2013-07-24 安徽江淮汽车股份有限公司 Longitudinal beam forepart assembly of light truck
CN105584529A (en) * 2016-01-28 2016-05-18 中国重汽集团济南动力有限公司 Front-section assembly of leaf spring suspension chassis frame of low drive zone passenger car
CN205971469U (en) * 2016-08-10 2017-02-22 徐州重型机械有限公司 Jack -up vehicle
CN207292132U (en) * 2017-09-20 2018-05-01 中国重汽集团济南动力有限公司 A kind of heavy-duty automobile frame leading portion assembly

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