CN112178161B - Gearbox suspension with independent collision block - Google Patents
Gearbox suspension with independent collision block Download PDFInfo
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- CN112178161B CN112178161B CN202010875015.8A CN202010875015A CN112178161B CN 112178161 B CN112178161 B CN 112178161B CN 202010875015 A CN202010875015 A CN 202010875015A CN 112178161 B CN112178161 B CN 112178161B
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- cavity
- collision block
- main spring
- fixed
- gearbox
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
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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
- B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
- B60K17/06—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of change-speed gearing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/025—Support of gearboxes, e.g. torque arms, or attachment to other devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/028—Gearboxes; Mounting gearing therein characterised by means for reducing vibration or noise
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H2057/02039—Gearboxes for particular applications
- F16H2057/02043—Gearboxes for particular applications for vehicle transmissions
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Vehicle Body Suspensions (AREA)
- Vibration Prevention Devices (AREA)
- Springs (AREA)
- Body Structure For Vehicles (AREA)
Abstract
The invention relates to a gearbox suspension with an independent collision block, and belongs to the technical field of NVH debugging of gearbox suspension. This gearbox suspension includes the aluminium core, the main spring, mounting plate and hits the piece, the main spring has first end and second end, be equipped with the first cavity that runs through first end and second end on the main spring, the aluminium core is fixed with the main spring in inserting first cavity from first end, mounting plate is held fixedly with the second, hit the piece and pass mounting plate back follow second end can dismantle connect in first cavity and with the laminating of aluminium core, be equipped with on the gearbox suspension and be used for being fixed in the first through-hole of installing support with the aluminium core, first through-hole runs through the aluminium core and hits the piece. The invention designs the collision block into a replaceable independent body and fixes the collision block in the second cavity of the main spring in an extruding way. Therefore, in the process of debugging the NVH acceleration performance, the debugging requirement can be met by only replacing the collision blocks with different structures, so that the collision blocks meeting the requirement of the nonlinear rigidity of the whole vehicle are debugged, the debugging period is shortened, and the cost is saved.
Description
Technical Field
The invention belongs to the technical field of NVH debugging of gearbox suspension, and particularly relates to a gearbox suspension with an independent collision block.
Background
At present, the arrangement form of a power assembly of a passenger car generally adopts a horizontal front-driving type, and the three-point pendulum type suspension has the advantages of simple structure, low cost, good vibration isolation effect and the like, and is increasingly widely applied in the field of automobile suspension systems. The gearbox suspension generally adopts a rubber structure, a rubber main spring generally adopts a herringbone rubber structure, the linear section rigidity is mainly provided, the requirement on the idling performance of the whole vehicle is met, the nonlinear section rigidity generally adopts a collision block, and the collision block and the main spring are vulcanized together and fixed on the suspension structure, so that the requirement on the acceleration performance is met.
However, in the process of debugging the acceleration performance of NVH (noise, vibration and harshness), the structure of the impact block is usually required to be frequently adjusted according to the performance of the whole vehicle to meet the requirement of the nonlinear rigidity of the whole vehicle, while in the prior art, the impact block and the main spring are vulcanized together, and when the structure of the impact block is adjusted, the main spring vulcanized together needs to be replaced together, so that the NVH debugging period is long and the cost is higher.
Disclosure of Invention
In view of this, the present invention is directed to overcome the defects in the prior art, and provides a transmission suspension with an independent collision block, so as to solve the technical problem in the prior art that the collision block cannot be replaced independently during the MVH debugging process.
The invention is realized by the following technical scheme:
the utility model provides a gearbox suspension that independent piece was hit in area, includes aluminium core, main spring, mounting plate and hits the piece, the main spring has first end and second end, be equipped with on the main spring and run through first end with the first cavity of second end, the aluminium core is followed first end is inserted in the first cavity with the main spring vulcanizes fixedly, mounting plate with the second end vulcanizes fixedly, it passes to hit the piece follow behind the mounting plate the second end can dismantle connect in the first cavity and with the laminating of aluminium core, be equipped with on the gearbox suspension and run through the aluminium core with hit the first through-hole of piece.
Optionally, in order to better implement the present invention, a first boss is disposed in the first cavity, the first boss divides the cavity into a first cavity and a second cavity which are communicated with each other, the aluminum core is fixed in the first cavity, and the collision block is fixed in the second cavity in an extruding manner.
Optionally, in order to better implement the present invention, a protrusion is optionally disposed on one or both sides of the striker, and the striker is fixed in the first chamber by pressing the protrusion.
Optionally, in order to better implement the present invention, one end of the protrusion in press connection with the first cavity is a plane, a conical surface, or an arc surface.
Optionally, in order to better implement the present invention, a second cavity is disposed at one end of the collision block away from the aluminum core, the second cavity is communicated with the first through hole, and a second boss adapted to the second cavity is disposed on the mounting bracket.
Optionally, in order to better implement the present invention, a third cavity adapted to an end of the second boss is disposed at one end of the aluminum core close to the bump block, and the second boss is inserted and fixed in the second cavity and the third cavity.
Optionally, in order to better implement the present invention, one end of the striker near the first boss is provided with a first necking portion.
Optionally, in order to better implement the present invention, a tapered channel is provided on the mounting base plate, and the second end of the main spring is adapted to the tapered channel.
Optionally, in order to better implement the present invention, the inner wall of the tapered channel has a curved surface structure.
Optionally, in order to better implement the present invention, the present invention is characterized in that: the aluminum core is fixedly connected with the aluminum core.
Compared with the prior art, the invention has the following beneficial effects:
the aluminum core, the main spring and the mounting bottom plate are vulcanized and fixed together to form a whole, the collision block is designed to be a replaceable independent body, and the collision block is fixed in the second cavity of the main spring in an extruding mode. In the NVH acceleration performance debugging process, the bolt penetrates through the first through hole to further fix the aluminum core and the collision block on the mounting bracket, and the collision block of different structures can be replaced to meet the debugging requirement, so that the collision block meeting the non-linear rigidity requirement of the whole vehicle is debugged, the debugging period is shortened, and the cost is saved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic illustration of an explosive structure of the present invention;
FIG. 3 is a schematic view of the internal structure of the present invention;
FIG. 4 is a schematic view of the mounting of the transmission mount to the vehicle body.
In the figure: 1-an aluminum core; 11-a first via; 12-a third cavity; 13-lightening holes; 2-main spring; 21-a first cavity; 22-a first boss; a 23-chevron configuration; 3, mounting a bottom plate; 4-collision block; 41-a bump; 42-a second cavity; 43-a first throat; 5-a limiting plate; 51-a second via; 6-longitudinal beam; 7-mounting a bracket; 8-second boss.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
Example (b):
as shown in figure 1, a gearbox suspension that independently hits piece in area, including aluminium core 1, main spring 2, mounting plate 3 and hit piece 4, main spring 2 is the rubber spare after vulcanizing, main spring 2 has first end and second end, the extension that is connected with gearbox installing support 7 is held at the both ends of mounting plate 3, the middle part of mounting plate 3 is equipped with the toper passageway that runs through mounting plate 3, the second end and the toper passageway looks adaptation of main spring 2, the second end of main spring 2 is pegged graft in the toper passageway and is vulcanized fixedly with mounting plate 3 to reduce the vibration between main spring 2 and the mounting plate 3.
Be equipped with the first cavity 21 that runs through first end and second end on the main spring 2, aluminium core 1 is fixed with main spring 2 vulcanization in inserting first cavity 21 from the first end of main spring 2, it connects in first cavity 21 to hit piece 4 from second end detachable, be equipped with the first through-hole 11 that runs through aluminium core 1 and hit piece 4 on the gearbox suspension, when installing the gearbox suspension on installing support 7 through installing bottom plate 3, use the bolt to pass behind the first through-hole 11 and installing support 7 spiro union, compress tightly aluminium core 1 and fix on installing support 7, in order to reduce the swing of aluminium core 1.
A plurality of lightening holes 13 are arranged on the aluminum core 1, and a plurality of lightening holes 13 are distributed around the first through hole 11 in an array mode.
The gearbox suspension still includes limiting plate 5, and the one end of keeping away from main spring 2 on the aluminium core 1 is equipped with the fore-set, and the both ends of limiting plate 5 are outwards buckled, and the middle part of limiting plate 5 is equipped with the fore-set connecting hole with fore-set looks adaptation and with the second through-hole 51 of first through-hole 11 intercommunication, and aluminium core 1 passes through fore-set and via hole riveting fastening with limiting plate 5, and of course, other fixed modes such as bolt fixed connection or welded fastening can also be adopted with limiting plate 5 to aluminium core 1. The bolt sequentially penetrates through the second through hole 51 and the first through hole 11 and then is fixed with the mounting bracket 7 in a threaded mode.
When the NVH acceleration performance test is carried out, the extending parts at two ends of the mounting base plate 3 are fixed on the vehicle body longitudinal beam 6 in a bolt fixing mode, the mounting support 7 is fixedly connected with the longitudinal beam 6, the aluminum core 1 and the collision block 4 are fixed on the mounting support 7 through the bolt penetrating through the first through hole 11, and in addition, the mounting support 7 is fixedly connected with the power assembly in a bolt connecting mode.
When the nonlinear rigidity of the whole vehicle can not meet the requirement, the impact block 4 made of corresponding materials and structures can be replaced according to actual requirements until the NVH acceleration performance requirement of the whole vehicle is met. When the striking block 4 is replaced, a new striking block 4 structure does not need to be vulcanized on the main spring 2 again. The prefabricated impact block 4 with different structures is only required to be arranged in the first cavity 21 of the main spring 2, the mounting bottom plate 3 is fixed on the longitudinal beam 6, and the aluminum core 1 and the impact block 4 are pressed and fixed on the mounting bracket 7 by a bolt penetrating through the first through hole 11. By the arrangement, the debugging period is greatly shortened, and the cost for simultaneously replacing the main spring 2 and the collision block 4 is reduced.
The main spring 2 is of a herringbone rubber structure, the direction of the vehicle body longitudinal beam 6 is the X direction, the direction of the vehicle body cross beam is the Y direction, and the herringbone structure 23 of the main spring 2 is arranged in the Y direction. The herringbone structure 23 of the main spring 2 is arranged in the Y direction, so that the rigidity of the suspension of the gearbox in the X direction can be improved, and the NVH performance of the engine in the ignition and flameout processes can be improved.
The inner wall of the first cavity 21 is vulcanized and fixed with first bosses 22 integrally formed with the first cavity 21, the number of the first bosses 22 is two, the first bosses 22 are respectively positioned on two side walls in the Y direction of the first cavity 21, and the first bosses 22 form a necking structure in the first cavity 21, so that the first cavity 21 is divided into a first cavity and a second cavity which are communicated with each other. The aluminum core 1 is fixed in the first chamber, and the striking block 4 is fixed in the second chamber in an extruding way. The length of hitting block 4 and the length looks adaptation of second cavity, when hitting block 4 extrusion and being fixed in the second cavity, hit the one end of block 4 and laminate with aluminium core 1, hit the other end of block 4 and the tip of second cavity and be located same horizontal plane to when installing the gearbox suspension on installing support 7, hit block 4 and can laminate with installing support 7, prevent to hit block 4 and rock.
The first chamber is provided with a first conical part on the side wall of the first chamber along the longitudinal beam 6 direction, and the first conical part is connected with the first boss 22. One end of the aluminum core 1, which is used for being inserted into the first cavity, is matched with the first conical part, the aluminum core 1 is inserted into the first cavity, the end part of the aluminum core 1 is positioned on one side of the first cavity through the first boss 22 and is limited, and then the aluminum core 1 and the main spring 2 are vulcanized and fixed. The first conical part can enable the rigidity curve transition to be compared, so that the small load working condition as much as possible can be located in the lower rigidity area, and the vibration isolation effect of the gearbox suspension is improved. Similarly, the second chamber has a second tapered portion on both side walls in the direction of the longitudinal beam 6, and the second tapered portion is connected to the first boss 22. One end of the collision block 4 close to the first boss 22 is matched with the second tapered portion, the collision block 4 is fixed in the second chamber in an extruding mode, the end portion of the collision block 4 is located on one side of the second chamber through the first boss 22 in a limiting mode, and the second tapered portion is also beneficial to improving the vibration isolation effect of the gearbox suspension.
The tapered channel of mounting plate 3 is the curved surface, and specifically speaking, the tapered channel of mounting plate 3 is wave face or arcwall face, and like this, after with main spring 2 vulcanization is fixed, mounting plate 3 is more stable with being connected of main spring 2.
One side or two sides of the striking block 4 are selectively provided with a convex block 41, and the striking block 4 is fixed in the first chamber through extrusion of the convex block 41. The projection 41 is provided on one side or both sides of the striker 4 in the direction of the side member 6. In the actual NVH acceleration performance debugging process, the structure of the bump 4 can be changed as required to test the bump 4 structure meeting the required nonlinear stiffness, for example, any number of bumps 41 are arranged on one side or two sides of the bump 4, the test is carried out according to the number of the bumps 41, for example, the size of the bump 41 is adjusted, the test is carried out according to the size of the bump 41, for example, the shape of the bump 41 is adjusted, one end of the bump 41 extruded with the second chamber is arranged into a plane or a conical surface or an arc surface, and the test is carried out according to the difference of the shapes of the bumps 41; of course, the number, size and shape of the projections 41 can be adjusted accordingly until the desired non-linear stiffness of the bump 4 structure is tested.
One end of the collision block 4, which is far away from the aluminum core 1, is provided with an inwardly recessed second cavity 42, and the second cavity 42 may be a blind hole which does not penetrate through the collision block 4, or a through hole which penetrates through the collision block 4. In the NVH acceleration performance debugging process, the test can also be performed by adjusting the shape or volume of the second cavity 42. A first throat portion 43 is formed at an end of the striker 4 fitted to the second tapered portion.
The second cavity 42 is spliced with a second boss 8 matched with the second cavity 42, and the second boss 8 is fixed on the mounting bracket 7 for mounting the suspension of the gearbox, so that the requirement of nonlinear rigidity of the gearbox in multiple directions can be met.
The third cavity 12 is a tapered cavity, the inner diameter of the first necking part 43 is matched with the end face of the third cavity 12, and the end part of the second boss 8 is matched with the tapered third cavity 12, so that the connection stability of the second boss 8, the aluminum core 1 and the collision block 4 is improved.
The manufacturing process of the gearbox suspension comprises the following steps: the main spring 2 is inserted into the conical channel on the mounting base plate 3, the aluminum core 1 is inserted into the first cavity of the main spring 2, then the aluminum core 1, the main spring 2 and the mounting base plate 3 are vulcanized and fixed together, and then the limiting plate 5 and the aluminum core 1 are riveted together. Finally, the striking block 4 is pressed into the second chamber of the main spring 2, thus forming a gearbox suspension.
In the NVH acceleration performance debugging process, it is fixed with second boss 8 to hit piece 4, second boss 8 can hit the displacement of piece 4 with the restriction, the gearbox drives the motion of installing support 7 of gearbox, installing support 7 drives aluminium core 1, limiting plate 5 and hits a 4 motions together, hit piece 4 striking mounting plate 3 in the motion process, mounting plate 3 provides limit function, it is too big to prevent that the power assembly from being located, main spring 2 after the vulcanization provides the vibration isolation function of power assembly when the idle speed, hit piece 4 and main spring 2 and provide the vibration isolation function of power assembly when accelerating jointly.
Therefore, in the process of debugging the NVH acceleration performance of the whole vehicle, when the nonlinear rigidity of the whole vehicle cannot meet the requirement, the impact block 4 made of the corresponding material and structure can be replaced according to the actual requirement until the NVH acceleration performance requirement of the whole vehicle is met. Not only greatly reduces the debugging period, but also reduces the cost.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (6)
1. The utility model provides a gearbox suspension that independent piece was hit in area which characterized in that: the spring comprises an aluminum core (1), a main spring (2), an installation bottom plate (3) and a collision block (4), wherein the main spring (2) is provided with a first end and a second end, a first cavity (21) penetrating through the first end and the second end is formed in the main spring (2), the aluminum core (1) is inserted into the first cavity (21) from the first end and is vulcanized and fixed with the main spring (2), the installation bottom plate (3) is vulcanized and fixed with the second end, and the collision block (4) is detachably connected into the first cavity (21) from the second end; a first boss (22) is arranged in the first cavity (21), the first boss (22) divides the first cavity (21) into a first cavity and a second cavity which are communicated with each other, the aluminum core (1) is fixed in the first cavity, and the collision block (4) is fixed in the second cavity in an extruding manner; a conical channel penetrating through the mounting bottom plate (3) is arranged on the mounting bottom plate (3), and the second end of the main spring (2) is matched with the conical channel;
one side or two sides of the collision block (4) are selectively provided with a convex block (41), and the collision block (4) is fixed in the first cavity through the extrusion of the convex block (41); one end of the bump (41) which is connected with the first cavity (21) in an extrusion manner is a plane, a conical surface or an arc surface.
2. The gearbox suspension with the independent collision block according to claim 1, characterized in that: a second cavity (42) is arranged in the collision block (4), and the second cavity (42) penetrates through the collision block (4) and is communicated with the first cavity (21).
3. The gearbox suspension with the independent collision block according to claim 1, characterized in that: one end of the collision block (4) close to the first boss (22) is provided with a first necking part (43).
4. The gearbox suspension with independent collision block of claim 3, characterized in that: a second boss (8) matched with the second cavity (42) is inserted in the second cavity (42) of the collision block (4), and the second boss (8) is fixed on a mounting bracket (7) for mounting the suspension of the gearbox.
5. The gearbox suspension with independent collision blocks of claim 1, characterized in that: the inner wall of the conical channel is of a curved surface structure.
6. The gearbox suspension with the independent bump block of any one of claims 1-4, wherein: the aluminum core structure is characterized by further comprising a limiting plate (5), wherein the limiting plate (5) is fixedly connected with the aluminum core (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010875015.8A CN112178161B (en) | 2020-08-27 | 2020-08-27 | Gearbox suspension with independent collision block |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010875015.8A CN112178161B (en) | 2020-08-27 | 2020-08-27 | Gearbox suspension with independent collision block |
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| CN112178161A CN112178161A (en) | 2021-01-05 |
| CN112178161B true CN112178161B (en) | 2022-06-03 |
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| CN202010875015.8A Active CN112178161B (en) | 2020-08-27 | 2020-08-27 | Gearbox suspension with independent collision block |
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