CN103448525A - Arrangement method and structure of power assembly for long-wheelbase four-wheel-drive automobile - Google Patents
Arrangement method and structure of power assembly for long-wheelbase four-wheel-drive automobile Download PDFInfo
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- CN103448525A CN103448525A CN2013104247920A CN201310424792A CN103448525A CN 103448525 A CN103448525 A CN 103448525A CN 2013104247920 A CN2013104247920 A CN 2013104247920A CN 201310424792 A CN201310424792 A CN 201310424792A CN 103448525 A CN103448525 A CN 103448525A
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Abstract
Disclosed is an arrangement method and structure of a power assembly for a long-wheelbase four-wheel-drive automobile. The structure is characterized by comprising a power assembly suspension system, a power assembly three-shell block connection, and a transmission shaft connection. The power assembly suspension system comprises an engine left suspension, an engine right suspension, a transmission suspension, a transfer case front suspension and a transfer case rear suspension. The power assembly three-shell block connection is characterized in that an engine housing is rigidly connected with a transmission front shell through bolts; the transmission front shell is rigidly connected with a transmission rear shell through bolts; the transmission rear shell is flexibly connected with a transition plate through a rubber elastic bushing added between the bolts and mounting holes; the transition plate is rigidly connected with a transfer case through bolts; a transfer case front shell is rigidly connected with a transfer case rear shell through bolts. The structure has the advantages that vibration reduction and noise reduction are simultaneous, the change range of the amplitude of stress borne by the power assembly three-shell can be reduced greatly, chances for fatigue breakage of the three-shell are slimmed, and vehicles can be comfortable and reliable to use.
Description
Technical field
The present invention relates to a kind of automotive technology, especially a kind of dynamic assembly placement technique, specifically a kind of dynamic assembly method for arranging and structure that is applicable to dynamic assembly three four-wheel drive car that shells dependence rebounds are connected or dynamic assembly span that cause due to the installation part-time case is longer (espespecially medium-sized 4 wheel driven visitor, lorry).
Background technology
As shown in Figure 2, traditional four-wheel drive car dynamic assembly connect and the arrangement that suspends in do not comprise the part-time case front-suspension, and all housings all adopt bolt to be rigidly connected, all transmission shafts connect and all adopt the rigid flanges coupler.Driving engine, change-speed box, rebound and part-time case are integrated into single rigid body, due to rebound and part-time case part cantilever long, cause system stiffness lower, the dynamic load moment of flexure that change-speed box back cover and rebound connecting portion bear is larger, alternation live load stress amplitude is large, and fatiguability destroys.
Summary of the invention
The objective of the invention is to adopt the single rear-suspending that is rigidly connected on vehicle frame, to cause cantilever long for existing four-wheel drive car dynamic assembly, cause system stiffness lower, the dynamic load moment of flexure that change-speed box back cover and rebound connecting portion bear is larger, alternation live load stress amplitude is large, the problem that fatiguability destroys, invent a kind of long wheelbase four-wheel drive car dynamic assembly method for arranging, a kind of corresponding arrangement structure is provided simultaneously, to improve reliability of service and the traveling comfort of four-wheel drive car, especially solve the dynamic assembly vibration and the three shell fracture by fatigue phenomenons that occur in traditional four-wheel drive car dynamic assembly connection and suspension arrangement mode.
One of technical scheme of the present invention is:
A kind of long wheelbase four-wheel drive car dynamic assembly method for arranging is characterized in that it comprises the following steps:
At first, the motor body that driving engine is installed is suspended on vehicle frame by least two points, motor body and change-speed box fore shell is rigidly connected simultaneously, change-speed box back cover and change-speed box fore shell adopt and are rigidly connected;
Secondly, by the rigidly connected transmission suspension of forward and backward housing on vehicle frame;
The 3rd, by the change-speed box back cover directly and the part-time case fore shell flexibly connected, and the part-time case fore shell is suspended on vehicle frame, part-time case fore shell and part-time case back cover are rigidly connected simultaneously, the part-time case back cover is suspended on vehicle frame; Perhaps make the change-speed box back cover first be flexibly connected with rebound, after making again the front mistake of rebound and part-time case be rigidly connected, the part-time case fore shell is suspended on vehicle frame, again part-time case back cover and part-time case fore shell are rigidly connected, thereby the rigid body that motor body, change-speed box fore shell, change-speed box back cover, part-time case fore shell and part-time case back cover are formed is divided into two rigid bodies, reach and reduce the single body length that is rigidly connected, reduce the purpose of dynamic load moment of flexure and alternation live load stress amplitude.
Described flexibly connecting adopts the method formation of installing the caoutchouc elasticity lining between bolt and mounting hole additional to flexibly connect.
Between described change-speed box power take-off shaft and part-time case input shaft, adopt rubbercushioned sleeve bearing coupling to be connected; All the other transmission shafts are connected and partly all adopt the rigid flanges coupler to be connected.
Two suspension point of described supporting engine housing are arranged symmetrically on the both sides of motor body.
Two of technical scheme of the present invention is:
A kind of long wheelbase four-wheel drive car dynamic assembly arrangement structure, it comprises the motor body 1 that driving engine is installed, change-speed box fore shell 2 and the change-speed box back cover 3 of change-speed box are installed, part-time case fore shell 5 and the part-time case back cover 6 of rebound 4 are installed, it is characterized in that described motor body 1 at least is suspended on vehicle frame by two suspension point, motor body 1 is rigidly connected with an end of change-speed box fore shell 2, one end of the other end of change-speed box fore shell 2 and change-speed box back cover 3 is rigidly connected, change-speed box fore shell 2 after being rigidly connected is suspended on a suspension point of vehicle frame with change-speed box back cover 3, the power system rigid body that at least two suspension point of it and motor body will be comprised of driving engine and change-speed box is suspended on vehicle frame, described change-speed box back cover 3 be arranged on part-time case before rebound 4 on 5 is flexible is connected or directly is connected with part-time case fore shell 5 flexibilities, when change-speed box back cover 3 is connected with part-time case fore shell 5 is flexible by rebound 4, between one end of change-speed box back cover 3 and rebound 4, adopt flexible structure 10 to be connected, between one end of the other end of rebound 4 and part-time case fore shell 5, be rigidly connected, when change-speed box back cover 3 directly is connected with part-time case fore shell 5 is flexible, between change-speed box back cover 3 and part-time case fore shell 5, adopt flexible structure 10 to be connected, adopt and be rigidly connected between part-time case fore shell 5 and part-time case back cover 6, described part-time case fore shell 5 and part-time case the back cover 6 all suspension point by separately are suspended on vehicle frame, rigidly connected part-time case fore shell 5 and part-time case back cover 6 form another rigid body of whole power system, flexibly connect into an integral body between two rigid bodies, reach and reduce the single body length that is rigidly connected, reduce the purpose of dynamic load moment of flexure and alternation live load stress amplitude.
Described flexible structure 10 flexibly connects for the bolt with the caoutchouc elasticity lining.
Between described change-speed box power take-off shaft and part-time case input shaft, adopt rubbercushioned sleeve bearing coupling 16 to be connected; All the other transmission shafts are connected and partly all adopt the rigid flanges coupler to be connected.
Two suspension point of described supporting engine housing 1 are arranged symmetrically in the both sides of motor body 1.
A described end that is positioned at change-speed box back cover 3 close part-time case fore shells 5 for the suspension point that supports change-speed box, the suspension point of described part-time case fore shell 5 is positioned near on an end of change-speed box back cover 3, and the suspension point of described part-time case back cover 5 is positioned on the end be connected with part-time case fore shell 5.
Beneficial effect of the present invention:
The present invention due between change-speed box back cover and rebound for flexibly connecting, dynamic assembly can form two relatively independent rigid bodies in Fig. 3, driving engine and change-speed box become the first independent rigid body, rebound and part-time case become another the second independent rigid body, adopt between the first independent rigid body and the second independent rigid body with the bolt of caoutchouc elasticity lining and realize that flexible (semi-rigid) is connected, the statically indeterminate problem that makes to suspend has become the statically problem of two rigid bodies.Be compared to traditional scheme, due to the more rational suspension arrangement of the present invention and the supplemental support effect flexibly connected, make the jib-length of two rigid bodies (being mainly the second independent rigid body) obviously reduce, rigidity separately significantly improves, the dynamic load moment of flexure reduces greatly, and alternation live load stress amplitude significantly reduces.Simultaneously, between change-speed box power take-off shaft and part-time case input shaft, adopt rubbercushioned sleeve bearing coupling, with the compensation housing, flexibly connect relative displacement between two rigid bodies that cause, can obtain good effect.
The present invention consider economy and feasible in, guaranteed to greatest extent four-wheel drive car comfort and reliability, solved dynamic assembly vibration that traditional scheme can't overcome and the problem of dynamic assembly three shell fracture by fatigues.
The present invention can be after the suspension members rigidity to the different automobile types dynamic assembly be carried out Rational choice, the statically indeterminate problem that the traditional power assembly is suspended changes statically problem into, can well solve the traditional power assembly connects and the suspension arrangement mode can't overcome the dynamic assembly problem of trembling, in vibration and noise reducing, can significantly reduce the variation range of the suffered stress amplitude of dynamic assembly three shell, thereby reduce the incidence of three shell fracture by fatigue faults, guarantee comfort and the reliability of vehicle.The vehicle of having gone into operation adopts this programme to do hardly change to three shell casting moulds, only need carry out small repairing a die to the rebound casting mould, and change a part of attaching parts and coupler, has good economy and Applicable scope widely.
The accompanying drawing explanation
Fig. 1 is the structure principle chart that dynamic assembly of the present invention is arranged.
Fig. 2 is the structure principle chart that existing dynamic assembly is arranged.
Fig. 3 is the schematic diagram of two equivalent rigid bodies of arrangement formation of the present invention.
The specific embodiment
Below in conjunction with drawings and Examples, the present invention is further illustrated.
Embodiment mono-.
As shown in Figure 1,3.
A kind of long wheelbase four-wheel drive car dynamic assembly method for arranging, at first, the motor body that driving engine is installed is suspended on vehicle frame by least two points, two suspension point should symmetrical be distributed in the both sides of housing, motor body and change-speed box fore shell are rigidly connected, change-speed box back cover and change-speed box fore shell are rigidly connected simultaneously, secondly, by the rigidly connected transmission suspension of forward and backward housing on vehicle frame, the 3rd, the change-speed box back cover is directly flexibly connected with the part-time case fore shell and (can be adopted the method for attachment that method formation flexibly connects or other is conventional of installing the caoutchouc elasticity lining between bolt and mounting hole additional, this connection mode is actually semi-rigid and partly flexibly connects), and the part-time case fore shell is suspended on vehicle frame, part-time case fore shell and the employing of part-time case back cover are rigidly connected simultaneously, also are suspended on vehicle frame by the part-time case back cover, perhaps make change-speed box back cover elder generation and rebound be flexibly connected and (can adopt the method for attachment that method formation flexibly connects or other is conventional of installing the caoutchouc elasticity lining between bolt and mounting hole additional, this connection mode is actually semi-rigid and partly flexibly connects), after making again rebound and part-time case fore shell be rigidly connected, the part-time case fore shell is suspended on vehicle frame, again part-time case back cover and part-time case fore shell are rigidly connected, thereby by motor body, the change-speed box fore shell, the change-speed box back cover, the rigid body that part-time case fore shell and part-time case back cover form is divided into two rigid bodies, as reaching, 1 rigid body in Fig. 3 and 2 rigid bodies reduce the single body length that is rigidly connected, reduce the purpose of dynamic load moment of flexure and alternation live load stress amplitude.As shown in Figure 1, between change-speed box power take-off shaft and part-time case input shaft, adopt rubbercushioned sleeve bearing coupling to be connected; All the other transmission shafts are connected and partly all adopt the rigid flanges coupler to be connected.
Embodiment bis-.
As shown in Figure 1,3.
A kind of long wheelbase four-wheel drive car dynamic assembly arrangement structure, it comprises the motor body 1 that driving engine is installed, change-speed box fore shell 2 and the change-speed box back cover 3 of change-speed box are installed, part-time case fore shell 5 and the part-time case back cover 6 of rebound 4 are installed, described motor body 1 at least is suspended on vehicle frame by two suspension point that are arranged symmetrically in the motor body both sides, motor body 1 is realized being rigidly connected by bolt 7 with an end of change-speed box fore shell 2, one end of the other end of change-speed box fore shell 2 and change-speed box back cover 3 is realized being rigidly connected by bolt 8, change-speed box fore shell 2 after being rigidly connected (is finally to be positioned near on an end of part-time case fore shell 5 with the suspension point that change-speed box back cover 3 is suspended at vehicle frame, as Fig. 1) on, the power system rigid body (being equivalent to 1 rigid body in Fig. 3) that at least two suspension point of it and motor body will be comprised of driving engine and change-speed box is suspended on vehicle frame, described change-speed box back cover 3 adopts flexible structure 10 to be connected by rebound 4 and part-time case fore shell 5 (can adopt the method for attachment that method formation flexibly connects or other is conventional of installing the caoutchouc elasticity lining between bolt and mounting hole additional, this connection mode is actually semi-rigid and partly flexibly connects), or directly with part-time case fore shell 5 is flexible, be connected, when change-speed box back cover 3 is connected with part-time case fore shell 5 is flexible by rebound 4, between one end of change-speed box back cover 3 and rebound 4, adopt flexible structure 10 to be connected, between one end of the other end of rebound 4 and part-time case fore shell 5, be rigidly connected, when change-speed box back cover 3 directly is connected with part-time case fore shell 5 is flexible, between change-speed box back cover 3 and part-time case fore shell 5, adopt flexible structure 10 to be connected, adopt and be rigidly connected between part-time case fore shell 5 and part-time case back cover 6, described part-time case fore shell 5 and part-time case the back cover 6 all suspension point by separately are suspended on vehicle frame, rigidly connected part-time case fore shell 5 and part-time case back cover 6 form another rigid body of whole power system, flexibly connect into an integral body between two rigid bodies, reach and reduce the single body length that is rigidly connected, reduce the purpose of dynamic load moment of flexure and alternation live load stress amplitude.Between described change-speed box power take-off shaft and part-time case input shaft, adopt rubbercushioned sleeve bearing coupling 16 to be connected; All the other transmission shafts are connected and partly all adopt the rigid flanges coupler to be connected.A described end that is positioned at change-speed box back cover 3 close part-time case fore shells 5 for the suspension point that supports change-speed box during concrete enforcement, the suspension point of described part-time case fore shell 5 is positioned near on an end of change-speed box back cover 3, and the suspension point of described part-time case back cover 5 is positioned on the end be connected with part-time case fore shell 5.
Fig. 1 is schematic diagram of the present invention, and it is by power assembly suspension system, and dynamic assembly three shell housings connect and transmission shaft connects three part compositions.
Dynamic assembly suspension is by engine left suspension 11; The engine right 12(that suspends is positioned at shown position engine left suspension 11 dead aft symmetric positions, and the engine mounting point is no less than 2, comprises 2); Transmission suspension point 13; Part-time case front-suspension point 14; Part-time case rear-suspending point 15 forms.
Dynamic assembly three shells connect, and motor body 1 adopts bolt to be rigidly connected 7 with change-speed box fore shell 2; Change-speed box fore shell 2 adopts bolt to be rigidly connected 8 with change-speed box back cover 3; Change-speed box back cover 3 and rebound 4 install the caoutchouc elasticity lining additional and form the form that flexibly connects that flexibly connects 10(or other application types between bolt and mounting hole); Between part-time case fore shell 5 and part-time case back cover 6, adopt bolt to be rigidly connected 9.
Transmission shaft connects, and adopts rubbercushioned sleeve bearing coupling 4(or other application type elastic couplings between change-speed box power take-off shaft and part-time case input shaft); All the other transmission shafts part that is connected all adopts rigid flanges coupler (or other application type fast couplings, do not express on figure).
The part that the present invention does not relate to all prior art that maybe can adopt same as the prior art is realized.
Embodiment recited above and accompanying drawing are only that the preferred embodiment of the present invention is described; not the spirit and scope of the present invention are limited; do not breaking away under design concept prerequisite of the present invention; various modification and improvement that in this area, common engineering staff make technical scheme of the present invention; all should fall into protection scope of the present invention, the technology contents that the present invention asks for protection all is documented in claims.
Claims (9)
1. a long wheelbase four-wheel drive car dynamic assembly method for arranging is characterized in that it comprises the following steps:
At first, the motor body that driving engine is installed is suspended on vehicle frame by least two points, motor body and change-speed box fore shell is rigidly connected simultaneously, change-speed box back cover and change-speed box fore shell adopt and are rigidly connected;
Secondly, by the rigidly connected transmission suspension of forward and backward housing on vehicle frame;
The 3rd, by the change-speed box back cover directly and the part-time case fore shell flexibly connected, and the part-time case fore shell is suspended on vehicle frame, part-time case fore shell and part-time case back cover are rigidly connected simultaneously, the part-time case back cover is suspended on vehicle frame; Perhaps make the change-speed box back cover first be flexibly connected with rebound, after making again the front mistake of rebound and part-time case be rigidly connected, the part-time case fore shell is suspended on vehicle frame, again part-time case back cover and part-time case fore shell are rigidly connected, thereby the rigid body that motor body, change-speed box fore shell, change-speed box back cover, part-time case fore shell and part-time case back cover are formed is divided into two rigid bodies, reach and reduce the single body length that is rigidly connected, reduce the purpose of dynamic load moment of flexure and alternation live load stress amplitude.
2. method according to claim 1, is characterized in that described flexibly connecting adopts the method formation of installing the caoutchouc elasticity lining between bolt and mounting hole additional to flexibly connect.
3. method according to claim 1, is characterized in that adopting rubbercushioned sleeve bearing coupling to be connected between described change-speed box power take-off shaft and part-time case input shaft; All the other transmission shafts are connected and partly all adopt the rigid flanges coupler to be connected.
4. method according to claim 1, is characterized in that two suspension point of described supporting engine housing are arranged symmetrically on the both sides of motor body.
5. a long wheelbase four-wheel drive car dynamic assembly arrangement structure, it comprises the motor body (1) that driving engine is installed, change-speed box fore shell (2) and the change-speed box back cover (3) of change-speed box are installed, part-time case fore shell (5) and the part-time case back cover (6) of rebound (4) are installed, it is characterized in that described motor body (1) at least is suspended on vehicle frame by two suspension point, motor body (1) is rigidly connected with an end of change-speed box fore shell (2), one end of the other end of change-speed box fore shell (2) and change-speed box back cover (3) is rigidly connected, change-speed box fore shell (2) after being rigidly connected is suspended on a suspension point of vehicle frame with change-speed box back cover (3), the power system rigid body that at least two suspension point of it and motor body will be comprised of driving engine and change-speed box is suspended on vehicle frame, described change-speed box back cover (3) be arranged on part-time case before rebound (4) on (5) flexibly connect or directly be connected with part-time case fore shell (5) flexibility, when change-speed box back cover (3) is connected by rebound (4) and part-time case fore shell (5) are flexible, between one end of change-speed box back cover (3) and rebound (4), adopt flexible structure (10) to be connected, be rigidly connected between an end of the other end of rebound (4) and part-time case fore shell (5), when change-speed box back cover (3) directly is connected with part-time case fore shell (5) is flexible, between change-speed box back cover (3) and part-time case fore shell (5), adopt flexible structure (10) to be connected, adopt and be rigidly connected between part-time case fore shell (5) and part-time case back cover (6), described part-time case fore shell (5) and part-time case back cover (6) all suspension point by separately are suspended on vehicle frame, rigidly connected part-time case fore shell (5) and part-time case back cover (6) form another rigid body of whole power system, flexibly connect into an integral body between two rigid bodies, reach and reduce the single body length that is rigidly connected, reduce the purpose of dynamic load moment of flexure and alternation live load stress amplitude.
6. structure according to claim 5, is characterized in that described flexible structure (10) flexibly connects for the bolt with the caoutchouc elasticity lining.
7. structure according to claim 5, is characterized in that adopting rubbercushioned sleeve bearing coupling (16) to be connected between described change-speed box power take-off shaft and part-time case input shaft; All the other transmission shafts are connected and partly all adopt the rigid flanges coupler to be connected.
8. structure according to claim 5, is characterized in that two suspension point of described supporting engine housing (1) are arranged symmetrically in the both sides of motor body (1).
9. structure according to claim 5, it is characterized in that a described end that is positioned at the close part-time case fore shell (5) of change-speed box back cover (3) for the suspension point that supports change-speed box, the suspension point of described part-time case fore shell (5) is positioned near on an end of change-speed box back cover (3), and the suspension point of described part-time case back cover (5) is positioned on the end be connected with part-time case fore shell (5).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310424792.0A CN103448525B (en) | 2013-09-18 | 2013-09-18 | Long wheelbase four-wheel drive car dynamic assembly method for arranging and structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310424792.0A CN103448525B (en) | 2013-09-18 | 2013-09-18 | Long wheelbase four-wheel drive car dynamic assembly method for arranging and structure |
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| CN103448525A true CN103448525A (en) | 2013-12-18 |
| CN103448525B CN103448525B (en) | 2015-11-11 |
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| CN201310424792.0A Expired - Fee Related CN103448525B (en) | 2013-09-18 | 2013-09-18 | Long wheelbase four-wheel drive car dynamic assembly method for arranging and structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105538767A (en) * | 2016-01-25 | 2016-05-04 | 惠州市中邦环境科技有限公司 | Variable transportation squeezing equipment |
| CN111051739A (en) * | 2017-11-07 | 2020-04-21 | 宝马股份公司 | Transmission assembly |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0246925A1 (en) * | 1986-05-23 | 1987-11-25 | Toyota Jidosha Kabushiki Kaisha | Sipport structure of power transfer device in combination with transmission unit |
| JP2007215400A (en) * | 2007-05-10 | 2007-08-23 | Shinko Electric Co Ltd | Blade spring |
| CN103085658A (en) * | 2012-11-09 | 2013-05-08 | 玉柴桩工(常州)有限公司 | Engine suspension device with transfer case |
| CN203186068U (en) * | 2013-04-25 | 2013-09-11 | 重庆大江工业有限责任公司 | Wheel type armored car power assembly suspension system |
| CN203449912U (en) * | 2013-09-18 | 2014-02-26 | 南京工业大学 | Power assembly distribution structure of long-wheelbase four-wheel drive car |
-
2013
- 2013-09-18 CN CN201310424792.0A patent/CN103448525B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0246925A1 (en) * | 1986-05-23 | 1987-11-25 | Toyota Jidosha Kabushiki Kaisha | Sipport structure of power transfer device in combination with transmission unit |
| JP2007215400A (en) * | 2007-05-10 | 2007-08-23 | Shinko Electric Co Ltd | Blade spring |
| CN103085658A (en) * | 2012-11-09 | 2013-05-08 | 玉柴桩工(常州)有限公司 | Engine suspension device with transfer case |
| CN203186068U (en) * | 2013-04-25 | 2013-09-11 | 重庆大江工业有限责任公司 | Wheel type armored car power assembly suspension system |
| CN203449912U (en) * | 2013-09-18 | 2014-02-26 | 南京工业大学 | Power assembly distribution structure of long-wheelbase four-wheel drive car |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105538767A (en) * | 2016-01-25 | 2016-05-04 | 惠州市中邦环境科技有限公司 | Variable transportation squeezing equipment |
| CN111051739A (en) * | 2017-11-07 | 2020-04-21 | 宝马股份公司 | Transmission assembly |
| CN111051739B (en) * | 2017-11-07 | 2023-09-05 | 宝马股份公司 | Transmission assembly |
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| CN103448525B (en) | 2015-11-11 |
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