CN105522919A - Connecting structure for transmission shaft and vehicle body of rear-wheel-drive vehicle with front-mounted engine - Google Patents
Connecting structure for transmission shaft and vehicle body of rear-wheel-drive vehicle with front-mounted engine Download PDFInfo
- Publication number
- CN105522919A CN105522919A CN201610027623.7A CN201610027623A CN105522919A CN 105522919 A CN105522919 A CN 105522919A CN 201610027623 A CN201610027623 A CN 201610027623A CN 105522919 A CN105522919 A CN 105522919A
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- transmission shaft
- vehicle body
- welding
- heavy stand
- flange
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/22—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or type of main drive shafting, e.g. cardan shaft
- B60K17/24—Arrangements of mountings for shafting
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Body Structure For Vehicles (AREA)
Abstract
The invention discloses a connecting structure for a transmission shaft and a vehicle body of a rear-wheel-drive vehicle with a front-mounted engine, comprising a main body connecting bracket of the vehicle body and a support frame of the transmission shaft, wherein the main body connecting bracket of the vehicle body is formed by welding a cross beam connecting piece, a left mounting cross beam and a right mounting cross beam; the bottom surface of the left mounting cross beam is a second-grade step surface, and the second-stage step surface close to the right end is provided with a left mounting hole and is welded with a projection welding nut; the bottom surface of the right mounting cross beam is a second-grade step surface, and the second-stage step surface close to the left end is provided with a right mounting hole and is welded with a projection welding nut; the left end of the support frame of the transmission shaft is provided with a left connecting hole, and the right end of the support frame of the transmission shaft is provided with a right connecting hole; and the transmission shaft is mounted in the support frame of the transmission shaft through a lining, and the support frame of the transmission shaft is mounted on the main body connecting bracket of the vehicle body through matching between bolts and the left connecting hole, the left mounting hole, the right connecting hole, the right mounting hole as well as the projection welding nuts. The connecting structure can enable the vehicle body structure to be light and can more easily meet strength and stiffness requirements.
Description
Technical field
The present invention relates to automotive body structure, be specifically related to a kind of transmission shaft of front-engine rear-drive automobile and the connection structure of vehicle body.
Background technology
The transmission shaft of front-engine rear-drive automobile is the key structure that carry car load transmission of power, also be simultaneously affect car load NTF(noise transfer function), VTF(vibration transfer function) the critical system structure of the dynamic economics index such as equivalent comfort index and transmission of power, for meeting its performance requriements, transmission shaft often designs heavier with the connection structure (i.e. the mounting structure of transmission shaft) of vehicle body.
As shown in Figure 1, the connection structure of existing transmission shaft and vehicle body, comprise vehicle body main body connection bracket 1, transmission shaft bracing frame 3 and vehicle body general assembly bracket assembly 4, vehicle body main body connection bracket 1 is by the crossbeam attaching parts 13 in " several " font, the left installation crossbeam 11 that section takes the shape of the letter U and the right installation crossbeam 12 that section takes the shape of the letter U are formed, the left part, bottom surface of left installation crossbeam 11 offers left crossbeam mounting hole, the right part of left installation crossbeam 11 is welded with the left flange 131 of crossbeam attaching parts 13, the left part of right installation crossbeam 12 is welded with the right flange 132 of crossbeam attaching parts 13, the right part, bottom surface of right installation crossbeam 12 offers right crossbeam mounting hole, transmission shaft bracing frame 3 by " Ω " shape upper supporting piece 31 and in fall " Ω " shape lower support element 32 weld form, middle part forms cylindrical cavity, the left part of transmission shaft bracing frame 3 offers the left mounting hole of bracing frame, the right part of transmission shaft bracing frame 3 offers the right mounting hole of bracing frame, vehicle body general assembly bracket assembly 4 by connection stay bearing plate 41 be welded on two brackets 42 be connected on stay bearing plate 41 and form, the left part connecting stay bearing plate 41 offers the left connecting bore corresponding with left crossbeam mounting hole, the right part connecting stay bearing plate 41 offers the right connecting bore corresponding with right crossbeam mounting hole, the bracket 42 on the left side offers left tray hole corresponding to mounting hole left with bracing frame, the bracket 42 on the right offers right bracket hole corresponding to mounting hole right with bracing frame.When mounted, transmission shaft 2 is hollow cylindrical Rubber Parts by lining 5() elastic conjunction is in the cylindrical cavity of transmission shaft bracing frame 3, transmission shaft bracing frame 3 is by the left mounting hole of bolt and bracing frame, left tray hole and bolt and the right mounting hole of bracing frame, right coordinating of bracket hole and be arranged on vehicle body general assembly bracket assembly 4, and vehicle body general assembly bracket assembly 4 is by bolt and left connecting bore, left crossbeam mounting hole and bolt and right connecting bore, right coordinating of crossbeam mounting hole and being arranged in vehicle body main body connection bracket 1.There are the following problems for this connection structure: (1) transmission shaft is arranged in transmission shaft bracing frame, transmission shaft bracing frame is arranged on vehicle body general assembly bracket assembly, vehicle body general assembly bracket assembly is arranged in vehicle body main body connection bracket, the centre of gration of transmission shaft is distant from car body, and its intensity to connection structure, rigidity property require higher; (2) need the connection that could to realize transmission shaft and vehicle body by vehicle body general assembly bracket assembly, vehicle body general assembly bracket assembly complex structure and heavy, and cost is higher, is unfavorable for realizing body structure lightweight and integral vehicle cost control.
Summary of the invention
The object of this invention is to provide a kind of transmission shaft of front-engine rear-drive automobile and the connection structure of vehicle body, to realize body structure lightweight, make its intensity simultaneously, rigidity requirement more easily reaches.
The transmission shaft of front-engine rear-drive automobile of the present invention and the connection structure of vehicle body, comprise vehicle body main body connection bracket and transmission shaft bracing frame, the left installation crossbeam that described vehicle body main body connection bracket is taken the shape of the letter U by the crossbeam attaching parts in " several " font, section and the right installation crossbeam that section takes the shape of the letter U are formed, the right part of left installation crossbeam and the left flanging welded of crossbeam attaching parts, the left part of right installation crossbeam and the right flanging welded of crossbeam attaching parts, described transmission shaft bracing frame by " Ω " shape upper supporting piece and in fall " Ω " shape lower support element weld form.The bottom surface of described left installation crossbeam, from left to right in two stage steps face upwards, the second stage step surface near right-hand member offers left mounting hole, left mounting hole is welded with project-welding nut; The bottom surface of described right installation crossbeam, from right to left in two stage steps face upwards, the second stage step surface near left end offers right mounting hole, right mounting hole is welded with project-welding nut; The left part of described transmission shaft bracing frame offers the left connecting bore corresponding with left mounting hole, right part offers the right connecting bore corresponding with right mounting hole; Transmission shaft is arranged in transmission shaft bracing frame by lining, and transmission shaft bracing frame is by bolt and left connecting bore, left mounting hole, project-welding nut and bolt and right connecting bore, right mounting hole, coordinating of project-welding nut and being arranged in vehicle body main body connection bracket.
In order to reduce the impact of colliding and causing vehicle body, increase the crumple power of transmission shaft bracing frame, the right crumple hole that left part offers the left crumple hole of strip shape, right part offers strip shape of described transmission shaft bracing frame.
In order to increase the intensity of left installation crossbeam, the right-hand member of the second stage step surface of described left installation crossbeam has the left connection flange upwards bent, the welded top of this left connection flange and crossbeam attaching parts.
The first order step surface of described left installation crossbeam offers left knock hole, for location during left installation beam welding; The first order step surface of described right installation crossbeam offers right knock hole, for location during right installation beam welding.
The left end of described left installation crossbeam has first of longitudinal beam welding left with vehicle body and leftly welds flange, the top front and rear sides of left installation crossbeam has the second left welding flange welded with left side floor panel, the right part of two the second left welding flange all with the left flanging welded of crossbeam attaching parts; The right-hand member of described right installation crossbeam has first backhand welding of welding with vehicle body right vertical beam and connects flange, the top front and rear sides of right installation crossbeam has second backhand welding of welding with right floor panel and connects flange, the left part that two the second backhand weldings connect flange all with the right flanging welded of crossbeam attaching parts.
The left connection side of described upper supporting piece is provided with the first left heavy stand, this the first left heavy stand is positioned at the right side of left connecting bore, the right connection side of upper supporting piece is provided with the first right heavy stand, this first right heavy stand is positioned at the left side of right connecting bore, and the front and rear sides of upper supporting piece has the first welding edge; The left connection side of described lower support element is provided with the second left heavy stand that heavy stand left with first is corresponding, this the second left heavy stand is positioned at the right side of left connecting bore, the right connection side of lower support element is provided with the second right heavy stand that heavy stand right with first is corresponding, this the second right heavy stand is positioned at the left side of right connecting bore, and the front and rear sides of lower support element has second welding edge corresponding with the first welding edge; Described first left heavy stand welds with the second left heavy stand, first right heavy stand welds with the second right heavy stand, the first welding edge being positioned at the left connection side front and rear sides of upper supporting piece is corresponding with the second welding edge of the left connection side front and rear sides being positioned at lower support element to be welded, and the first welding edge being positioned at the right connection side front and rear sides of upper supporting piece is corresponding with the second welding edge of the right connection side front and rear sides being positioned at lower support element to be welded.
The present invention compared with prior art, has following effect:
(1) structure of vehicle body main body connection bracket and transmission shaft bracing frame is optimized, transmission shaft bracing frame is directly installed in vehicle body main body connection bracket, achieve the direct assembling of transmission shaft and main structure of vehicle body, improve attachment point rigidity, be conducive to car load NVH performance boost; The centre of gration of transmission shaft is from car body close together simultaneously, and the intensity of connection structure, rigidity property require more easily to reach.
(2) decrease these parts of vehicle body general assembly bracket assembly, simplify the structure, alleviate weight, achieve body structure lightweight, improve fuel economy, also reduce body structure cost simultaneously.
Accompanying drawing explanation
Fig. 1 is the transmission shaft of existing front-engine rear-drive automobile and the connection structure schematic diagram of vehicle body.
Fig. 2 is structural representation of the present invention.
Fig. 3 is the upward view of vehicle body main body connection bracket.
Fig. 4 is the upward view of the position relationship of transmission shaft bracing frame and transmission shaft.
Fig. 5 is the axonometric drawing of transmission shaft bracing frame and lining.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is elaborated.
The transmission shaft of front-engine rear-drive automobile as shown in Figures 2 to 5 and the connection structure of vehicle body, comprise vehicle body main body connection bracket 1 and transmission shaft bracing frame 3, the left installation crossbeam 11 that vehicle body main body connection bracket 1 is taken the shape of the letter U by the crossbeam attaching parts 13 in " several " font, section and the right installation crossbeam 12 that section takes the shape of the letter U are formed.The lateral surface of the lateral surface of left flange 131 of " several " character form structure of crossbeam attaching parts 13, the lateral surface at top 133 and right flange 132 welds with front floor tunnel.
The left end of left installation crossbeam 11 has first of longitudinal beam welding left with vehicle body and leftly welds flange 114, the right part that the top front and rear sides of left installation crossbeam 11 has the second left welding flange 115, two the second left welding flange 115 welded with left side floor panel is all welded with the medial surface of the left flange 131 of crossbeam attaching parts 13; The bottom surface of left installation crossbeam 11 is from left to right in two stage steps face upwards, first order step surface offers the left knock hole 112 of φ 15mm, second stage step surface near right-hand member offers the left mounting hole 111 of φ 11mm, left mounting hole 111 is welded with the project-welding nut of M10, the right-hand member of second stage step surface has the left connection flange 113 upwards bent, and this left connection flange 113 welds with the medial surface at the top 133 of crossbeam attaching parts 13.
The right-hand member of right installation crossbeam 12 has first backhand welding of welding with vehicle body right vertical beam and connects flange 123, the top front and rear sides of right installation crossbeam 12 has second backhand welding of welding with right floor panel and connects flange 124, and the left part that two the second backhand weldings connect flange 124 is all welded with the medial surface of the right flange 132 of crossbeam attaching parts 13; The bottom surface of right installation crossbeam 12 is from right to left in two stage steps face upwards, first order step surface offers the right knock hole 122 of φ 15mm, second stage step surface near left end offers the right mounting hole 121 of φ 11mm, right mounting hole 121 is welded with M10 project-welding nut.
Transmission shaft bracing frame 3 by " Ω " shape upper supporting piece 31 and in fall " Ω " shape lower support element 32 weld form, middle part forms cylindrical cavity, the left part of transmission shaft bracing frame 3 offers the left crumple hole 35 of strip shape and the left connecting bore 33 of the φ 11mm corresponding with left mounting hole 111, and the right part of transmission shaft bracing frame 3 offers the right crumple hole 36 of strip shape and the right connecting bore 34 of the φ 11mm corresponding with right mounting hole 121.
The left connection side of upper supporting piece 31 is provided with the first left heavy stand 311 of φ 20mm, this the first left heavy stand 311 is positioned at the right side of the left connecting bore 33 of upper supporting piece 31, the right connection side of upper supporting piece 31 is provided with the first right heavy stand 312 of φ 20mm, this the first right heavy stand 312 is positioned at the left side of the right connecting bore 34 of upper supporting piece 31, the front and rear sides of upper supporting piece 31 has the first welding edge 313, the semicircular structure of upper supporting piece 31 offers three upper lightening holes 314.The left connection side of lower support element 32 is provided with the second left heavy stand 321 of φ 20mm corresponding to heavy stand 311 left with first, this the second left heavy stand 321 is positioned at the right side of the left connecting bore 33 of lower support element 32, the right connection side of lower support element 32 is provided with the second right heavy stand 322 of φ 20mm corresponding to heavy stand 312 right with first, this the second right heavy stand 322 is positioned at the left side of the right connecting bore 34 of lower support element 32, before lower support element 32, rear both sides have second welding edge 323 corresponding with the first welding edge 313, the semicircular structure of lower support element 32 offers three lower lightening holes 324.First left heavy stand 311 welds with the second left heavy stand 321, first right heavy stand 312 welds with the second right heavy stand 322, the first welding edge 313 being positioned at the left connection side front and rear sides of upper supporting piece 31 is corresponding with the second welding edge 323 of the left connection side front and rear sides being positioned at lower support element 32 to be welded, and the first welding edge 313 being positioned at the right connection side front and rear sides of upper supporting piece 31 is corresponding with the second welding edge 323 of the right connection side front and rear sides being positioned at lower support element 32 to be welded.
Transmission shaft 2 is made up of transmission shaft leading portion 21, transmission shaft back segment 22 and universal-joint 23, transmission shaft 2 is by lining 5 elastic conjunction in the cylindrical cavity of transmission shaft bracing frame 3, and transmission shaft bracing frame 3 is by bolt and left connecting bore 33, left mounting hole 111, project-welding nut and bolt and right connecting bore 34, right mounting hole 121, coordinating of project-welding nut and being arranged in vehicle body main body connection bracket 1.
Claims (6)
1. the transmission shaft of a front-engine rear-drive automobile and the connection structure of vehicle body, comprise vehicle body main body connection bracket (1) and transmission shaft bracing frame (3), described vehicle body main body connection bracket (1) is by the crossbeam attaching parts (13) in " several " font, the right installation crossbeam (12) that the left installation crossbeam (11) that section takes the shape of the letter U and section take the shape of the letter U is formed, the right part of left installation crossbeam is welded with the left flange (131) of crossbeam attaching parts, the left part of right installation crossbeam is welded with the right flange (132) of crossbeam attaching parts, described transmission shaft bracing frame (3) by " Ω " shape upper supporting piece (31) and in fall " Ω " shape lower support element (32) weld form, it is characterized in that:
The bottom surface of described left installation crossbeam (11) is from left to right in two stage steps face upwards, and the second stage step surface near right-hand member offers left mounting hole (111), and (111) are welded with project-welding nut to left mounting hole; The bottom surface of described right installation crossbeam (12) is from right to left in two stage steps face upwards, and the second stage step surface near left end offers right mounting hole (121), and (121) are welded with project-welding nut to right mounting hole; The left part of described transmission shaft bracing frame (3) offers the left connecting bore (33) corresponding with left mounting hole (111), right part offers the right connecting bore (34) corresponding with right mounting hole (121); Transmission shaft (2) is arranged in transmission shaft bracing frame (3) by lining (5), and transmission shaft bracing frame (3) is by bolt and left connecting bore (33), left mounting hole (111), project-welding nut and bolt and right connecting bore (34), right mounting hole (121), coordinating of project-welding nut and being arranged in vehicle body main body connection bracket (1).
2. the transmission shaft of front-engine rear-drive automobile according to claim 1 and the connection structure of vehicle body, is characterized in that: the right crumple hole (36) that left part offers the left crumple hole (35) of strip shape, right part offers strip shape of described transmission shaft bracing frame (3).
3. the transmission shaft of front-engine rear-drive automobile according to claim 1 and 2 and the connection structure of vehicle body, it is characterized in that: the right-hand member of the second stage step surface of described left installation crossbeam (11) has the left connection flange (113) upwards bent, this left connection flange (113) is welded with the top (133) of crossbeam attaching parts (13).
4. the transmission shaft of front-engine rear-drive automobile according to claim 3 and the connection structure of vehicle body, it is characterized in that: the first order step surface of described left installation crossbeam (11) offers left knock hole (112), the first order step surface of described right installation crossbeam (12) offers right knock hole (122).
5. the transmission shaft of front-engine rear-drive automobile according to claim 4 and the connection structure of vehicle body, is characterized in that:
The left end of described left installation crossbeam (11) has first of longitudinal beam welding left with vehicle body and leftly welds flange (114), the top front and rear sides of left installation crossbeam (11) has the second left welding flange (115) of welding with left side floor panel, and the right part of two the second left welding flange is all welded with the left flange (131) of crossbeam attaching parts (13);
The right-hand member of described right installation crossbeam (12) has first backhand welding of welding with vehicle body right vertical beam and connects flange (123), the top front and rear sides of right installation crossbeam (12) has second backhand welding of welding with right floor panel and connects flange (124), and the left part that two the second backhand weldings connect flange is all welded with the right flange (132) of crossbeam attaching parts (13).
6. the transmission shaft of front-engine rear-drive automobile according to claim 4 and the connection structure of vehicle body, is characterized in that:
The left connection side of described upper supporting piece (31) is provided with the first left heavy stand (311), this the first left heavy stand is positioned at the right side of left connecting bore (33), the right connection side of upper supporting piece (31) is provided with the first right heavy stand (312), this the first right heavy stand is positioned at the left side of right connecting bore (34), and the front and rear sides of upper supporting piece (31) has the first welding edge (313);
The left connection side of described lower support element (32) is provided with the second left heavy stand (321) that heavy stand (311) left with first is corresponding, this the second left heavy stand is positioned at the right side of left connecting bore (33), the right connection side of lower support element (32) is provided with the second right heavy stand (322) that heavy stand (312) right with first is corresponding, this the second right heavy stand is positioned at the left side of right connecting bore (34), and the front and rear sides of lower support element (32) has second welding edge (323) corresponding with the first welding edge (313);
Described first left heavy stand (311) welds with the second left heavy stand (321), first right heavy stand (312) welds with the second right heavy stand (322), the first welding edge (313) being positioned at the left connection side front and rear sides of upper supporting piece (31) is corresponding with second welding edge (323) of the left connection side front and rear sides being positioned at lower support element (32) to be welded, and the first welding edge (313) being positioned at the right connection side front and rear sides of upper supporting piece (31) is corresponding with second welding edge (323) of the right connection side front and rear sides being positioned at lower support element (32) to be welded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610027623.7A CN105522919B (en) | 2016-01-15 | 2016-01-15 | A kind of power transmission shaft of front-engine rear-drive automobile and the attachment structure of vehicle body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610027623.7A CN105522919B (en) | 2016-01-15 | 2016-01-15 | A kind of power transmission shaft of front-engine rear-drive automobile and the attachment structure of vehicle body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105522919A true CN105522919A (en) | 2016-04-27 |
| CN105522919B CN105522919B (en) | 2018-01-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610027623.7A Active CN105522919B (en) | 2016-01-15 | 2016-01-15 | A kind of power transmission shaft of front-engine rear-drive automobile and the attachment structure of vehicle body |
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| Country | Link |
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| CN (1) | CN105522919B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114776692A (en) * | 2022-04-29 | 2022-07-22 | 江铃汽车股份有限公司 | Detachable transmission shaft and design method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114776692A (en) * | 2022-04-29 | 2022-07-22 | 江铃汽车股份有限公司 | Detachable transmission shaft and design method thereof |
| CN114776692B (en) * | 2022-04-29 | 2023-12-22 | 江铃汽车股份有限公司 | Detachable transmission shaft and design method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105522919B (en) | 2018-01-02 |
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