CN103832208A - Bent pipe beam type rear axle welding assembly - Google Patents
Bent pipe beam type rear axle welding assembly Download PDFInfo
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- CN103832208A CN103832208A CN201210479545.6A CN201210479545A CN103832208A CN 103832208 A CN103832208 A CN 103832208A CN 201210479545 A CN201210479545 A CN 201210479545A CN 103832208 A CN103832208 A CN 103832208A
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- pipe beam
- bend pipe
- joint
- straight line
- mounting hole
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Abstract
The invention discloses a bent pipe beam type rear axle welding assembly which comprises a pipe beam, a left shaft joint, a right shaft joint and a suspension system connecting piece, wherein the pipe beam is a bent pipe beam formed by bending a seamless steel pipe, the bent pipe beam comprises a left end straight line section, a right end straight line section and a backward middle straight line section on the same axis, the distance L1 between the two end straight line sections and the middle straight line section is 50-200 mm, and the two end straight line sections and the middle straight line section are in natural bending transition; the left and right shaft joints are arranged at the left and right ends of the bent pipe beam through welding; the suspension system connecting piece is arranged on the inner sides of shaft joints at two ends of the left and right straight sections of the bent pipe beam. The shaft coupling integrates multiple functions of a hub bearing unit, a brake assembly mounting hole, a driving shaft assembly through hole, a suspension lower swing arm connecting hole, an ABS sensor mounting hole and the like. The suspension system connecting piece comprises a spiral spring seat and a thrust rod support, a thrust rod assembly mounting hole is formed in the thrust rod support, and a shock absorber lower pin is mounted on the thrust rod support. The invention has the advantages of high integral strength, simple manufacturing process, compact structural arrangement and flexible arrangement position on the whole vehicle.
Description
Technical field
The present invention relates to a kind of bend pipe beam type rear-axle welding assembly, belong to the non-parts that turn in rear bridge system of the non-driving of automobile.Specifically a kind of welding assembly structure being formed by suspension system attaching partss such as bend pipe beam, joint and helical spring seat, rear shock absorber support, track bar brackets.
Background technology
Now, conventional in rear axle structure have two kinds of structures, a kind of be adopt punching weldering or cast type axle housing, with the drive axle assembly of main reduction gear and diff, another kind is the non-driving back axle of straight tube beam type of only bearing supporting role.In new forms of energy minicar, part vehicle adopts rearmounted rear-guard formula chassis arrangement structure.In this structure, because distributing, axle load before and after electronlmobil needs, and motor and transmission assembly adopt horizontal mode to be arranged in rear portion, car load chassis.Conventional two kinds of rear axle structures cannot meet rearmounted rear-guard dynamic assembly arrangement requirement spatially and the performance requriements of transmission of power.
Summary of the invention
A kind of bend pipe beam type rear-axle welding assembly that the object of the invention is the deficiency in order to solve rearmounted rear-guard vehicle installing space and design.This structure rear axle is meeting under the condition requiring compared with high-mechanic, for car chassis rear portion dynamic assembly provides larger installing space.
Technical scheme of the present invention: bend pipe beam type rear-axle welding assembly of the present invention comprises Guan Liang, left and right joint and suspension system attaching parts, its Guan Liang is bend pipe beam, bend pipe beam is by solid drawn pipe bending and molding, bend pipe beam is included in two ends, left and right linear portion on same axis and middle straight line segment backward, distance L 1=50 ~ the 200mm of two ends linear portion and middle straight line segment, two ends linear portion and the transition of middle straight line segment natural torsion; Left and right joint by welded and installed at two ends, bend pipe beam left and right; Suspension system attaching parts is in linear portion two ends, bend pipe beam left and right joint inner side.
On described joint, have joint outer face, bend pipe beam mounting hole, joint outer face is Hub assembly and brake assembly mounting plane, and joint outer face is mutually vertical with bend pipe beam mounting hole axis; On joint outer face, there is Hub assembly knock hole and be distributed in four brake assembly bolt mounting holes around; Have suspension lower swing arm support locating surface connecting bore in joint front side, connecting bore axis is parallel with joint outer face.
Described joint comprises that the sidewall of outer face has abs sensor mounting hole.
On described joint, on the axis of bend pipe beam mounting hole and joint, the axis of Hub assembly mounting hole has front and back biasing L3=40 ~ 100mm, upper below-center offset L4=40 ~ 100mm.
Described suspension system attaching parts comprises spiral spring seat and track bar bracket, has distance rod assembly mounting hole on track bar bracket, and bottom pin of shock absorber is installed on track bar bracket, and the axis of two bottom pin of shock absorbers in left and right is on same straight line.
Described two of left and right spiral spring seat upper surface is positioned at same plane, and auxiliary hole place, two spiral spring seat centers, left and right plane is with respect to Hub assembly axis place plane offset distance L2=80 ~ 300mm.
Two of left and right spiral spring seat is symmetrical expression with respect to vehicle centerline and arranges.
Advantage of the present invention: the present invention adopts bend pipe beam type rear axle structure, and bulk strength is high, and manufacturing process is simple, structural arrangement compactness, on car load, position is flexible.Bend pipe beam type back axle can be the reserved sufficient installing space of horizontal change speed gear box, and back axle left and right joint adopts through-hole type structure, and drive shaft assembly can pass from joint, and change speed gear box outputting power is sent to driving wheel, drives automobile to advance.This invention back axle is integrated three link-type suspension parts, can be connected with suspension system easily, have reduced suspension system number of parts.On bend pipe beam type rear-axle welding assembly joint, the integrated function such as drg and ABS mounting hole, meets the requirement of car load braking safety.The present invention had both met the various in-use performance requirements of non-driving vehicle bridge, had reduced to a great extent again the weight of back axle assembly, had reduced the energy resource consumption of car load.
Accompanying drawing explanation
Fig. 1 is that the present invention overlooks overall structure schematic diagram;
Fig. 2 is this practical joint part enlarged diagram;
Fig. 3 is the right elevation of Fig. 2.
Fig. 4 is the A-A cutaway view that suspension system attaching parts of the present invention is Fig. 1;
Fig. 5 is that the present invention uses view.
The specific embodiment
Further illustrate the present invention below in conjunction with drawings and Examples.
Fig. 3, Fig. 4 as shown in Figure 1, Figure 2:
The present invention is made up of bend pipe beam 1, left and right joint 2 and 3, left and right suspension system attaching parts 4 and 5.Bend pipe beam 1 is agent structure of the present invention, rises and support and connection function in this back axle assembly.This bend pipe beam can be formed by carbon steel or Low-carbon High Strength alloy steel Integral bending, also can take segmentation bending to be welded.Bend pipe beam 1 is included in two ends, left and right linear portion 1a, 1b on same axis and middle straight line segment 1c backward, distance L 1=50 ~ 200mm of two ends linear portion 1a, 1b and middle straight line segment 1c, two ends linear portion 1a, 1b and the transition of middle straight line segment 1c natural torsion; Left and right joint 2,3 by welded and installed at bend pipe beam 1 two ends, left and right; Suspension system attaching parts 4,5 is in bend pipe beam 1 joint 2,3 inner sides, linear portion two ends, left and right.
As Fig. 2, Fig. 3: left and right joint 2 and 3 can adopt Forging Technology or precision casting technology moulding, has bend pipe beam mounting hole 2b on joint, and mounting hole 2b is pressed in the end circular hole of bend pipe beam linear portion 1a and 1b, is then welded.Because joint outer face 2a is Hub assembly and brake assembly mounting plane, after having welded, must guarantee that left and right joint outer face is parallel to each other.Joint outer face 2a is mutually vertical with bend pipe beam mounting hole 2b axis, has Hub assembly knock hole 2d on outer face 2a, and is distributed in four brake assembly bolt mounting holes 2e around.Have suspension lower swing arm support locating surface 2c and connecting bore 2g in joint front side, connecting bore 2g axis is parallel with joint outer face 2a.
The sidewall of joint outer face 2a has abs sensor mounting hole 2f, can meet the installation requirement of high deceleration and stopping performance automobile to ABS device.The axis of installation of sensors hole position 2f is mutually vertical with the axis of joint end face bend pipe beam mounting hole 2b.
On joint, on the axis of bend pipe beam mounting hole 2b and joint, the axis of Hub assembly mounting hole 2d has front and back biasing L3=40 ~ 100mm, upper below-center offset L4=40 ~ 100mm.
As Fig. 4: suspension system attaching parts 5 comprises spiral spring seat 5a and track bar bracket 5b, has distance rod assembly mounting hole 5d on track bar bracket 5b, for installed thrust bar assembly, bears transverse load.Bottom pin of shock absorber 5c is installed on track bar bracket 5b, and suspension system attaching parts 4 is basic identical with suspension system attaching parts 5, and the axis of two bottom pin of shock absorbers in left and right is on same straight line.
Two the spiral spring seat upper surfaces in left and right are positioned at same plane, and auxiliary hole place, two spiral spring seat centers, left and right plane is with respect to Hub assembly axis place plane offset distance L2=80 ~ 300mm.
Two of left and right spiral spring seat is symmetrical expression with respect to vehicle centerline and arranges.
5e is liner plate, for strengthening weld is local, for strengthening back axle load-carrying capacity.
Fig. 5 is that the present invention uses constitution diagram: Hub assembly 12 is fixed on joint end face by four bolts hole on joint 2,3 with brake assembly 13.Brake wheel 14 and wheel set are fixed on Hub assembly 12 by tire bolt 15, nut 16.Drive shaft assembly 11, through joint centre hole 2d, matches with the spline of Hub assembly 13, carrys out transferring power and drives wheel.Nut 17 is hexagonal fluting flange surface nut, and it locks drive shaft assembly 11 and Hub assembly 12, guarantees the reliability of transmission of power.
In the type rear axle structure, because needs are the reserved installing space of drive shaft assembly, suspension system layouts pattern is three link rod structures, and above-mentioned to be welded on part on back axle be three link-type suspensions and back axle assembly attaching parts.Spiral spring seat installation site is not directly over wheel active line in the present invention, but has in the horizontal direction a skew backward with wheel center line.
Claims (7)
1. a bend pipe beam type rear-axle welding assembly, comprise Guan Liang, left and right joint and suspension system attaching parts, it is characterized in that: Guan Liang is bend pipe beam (1), bend pipe beam (1) is by solid drawn pipe bending and molding, bend pipe beam (1) is included in two ends, left and right linear portion (1a, 1b) on same axis and middle straight line segment (1c) backward, distance L 1=50 ~ the 200mm of two ends linear portion (1a, 1b) and middle straight line segment (1c), two ends linear portion (1a, 1b) and the transition of middle straight line segment (1c) natural torsion; Left and right joint (2,3) by welded and installed at bend pipe beam (1) two ends, left and right; Suspension system attaching parts (4,5) is in linear portion two ends, bend pipe beam (1) left and right joints (2,3) inner side.
2. bend pipe beam type rear-axle welding assembly according to claim 1, it is characterized in that: on joint, have joint outer face (2a), bend pipe beam mounting hole (2b), joint outer face (2a) is Hub assembly and brake assembly mounting plane, and joint outer face (2a) is mutually vertical with bend pipe beam mounting hole (2b) axis; On joint outer face (2a), there is Hub assembly knock hole (2d) and be distributed in four brake assembly bolt mounting holes (2e) around; Have the connecting bore (2g) on suspension lower swing arm support locating surface (2c) and locating surface in joint front side, the axis of connecting bore (2g) is parallel with joint outer face (2a).
3. bend pipe beam type rear-axle welding assembly according to claim 2, is characterized in that: joint comprises that the sidewall of outer face (2a) has abs sensor mounting hole (2f).
4. bend pipe beam type rear-axle welding assembly according to claim 2, it is characterized in that: on joint, on the axis of bend pipe beam mounting hole (2b) and joint, the axis of Hub assembly mounting hole (2d) has front and back biasing L3=40 ~ 100mm, upper below-center offset L4=40 ~ 100mm.
5. bend pipe beam type rear-axle welding assembly according to claim 1 and 2, it is characterized in that: suspension system attaching parts (4,5) comprises spiral spring seat and track bar bracket, on track bar bracket, there is distance rod assembly mounting hole, bottom pin of shock absorber is installed on track bar bracket, and the axis of two bottom pin of shock absorbers in left and right is on same straight line.
6. bend pipe beam type rear-axle welding assembly according to claim 5, it is characterized in that: two of left and right spiral spring seat upper surface is positioned at same plane, and auxiliary hole place, two spiral spring seat centers, left and right plane is with respect to Hub assembly axis place plane offset distance L2=80 ~ 300mm.
7. bend pipe beam type rear-axle welding assembly according to claim 5, is characterized in that: two of left and right spiral spring seat is symmetrical expression with respect to vehicle centerline and arranges.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210479545.6A CN103832208A (en) | 2012-11-23 | 2012-11-23 | Bent pipe beam type rear axle welding assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210479545.6A CN103832208A (en) | 2012-11-23 | 2012-11-23 | Bent pipe beam type rear axle welding assembly |
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| Publication Number | Publication Date |
|---|---|
| CN103832208A true CN103832208A (en) | 2014-06-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210479545.6A Pending CN103832208A (en) | 2012-11-23 | 2012-11-23 | Bent pipe beam type rear axle welding assembly |
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| CN (1) | CN103832208A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104724084A (en) * | 2015-01-29 | 2015-06-24 | 北京新能源汽车股份有限公司 | Rear axle assembly |
| CN104802598A (en) * | 2015-03-31 | 2015-07-29 | 北京新能源汽车股份有限公司 | Split axle device |
| CN106004244A (en) * | 2016-07-29 | 2016-10-12 | 湖北三众车桥有限责任公司 | Electric station wagon drive axle assembly |
| CN106080040A (en) * | 2016-07-29 | 2016-11-09 | 湖北三众车桥有限责任公司 | Assisted electric traveling car drive bridge axle tube assembly |
| CN110802987A (en) * | 2018-08-06 | 2020-02-18 | 康宝年 | Novel special vehicle rear axle housing assembly |
-
2012
- 2012-11-23 CN CN201210479545.6A patent/CN103832208A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104724084A (en) * | 2015-01-29 | 2015-06-24 | 北京新能源汽车股份有限公司 | Rear axle assembly |
| CN104802598A (en) * | 2015-03-31 | 2015-07-29 | 北京新能源汽车股份有限公司 | Split axle device |
| CN106004244A (en) * | 2016-07-29 | 2016-10-12 | 湖北三众车桥有限责任公司 | Electric station wagon drive axle assembly |
| CN106080040A (en) * | 2016-07-29 | 2016-11-09 | 湖北三众车桥有限责任公司 | Assisted electric traveling car drive bridge axle tube assembly |
| CN110802987A (en) * | 2018-08-06 | 2020-02-18 | 康宝年 | Novel special vehicle rear axle housing assembly |
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Application publication date: 20140604 |