CN112937277A - Car suspension plastic support and assembly structure of car suspension plastic support and rubber spare - Google Patents

Car suspension plastic support and assembly structure of car suspension plastic support and rubber spare Download PDF

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Publication number
CN112937277A
CN112937277A CN202110469633.7A CN202110469633A CN112937277A CN 112937277 A CN112937277 A CN 112937277A CN 202110469633 A CN202110469633 A CN 202110469633A CN 112937277 A CN112937277 A CN 112937277A
Authority
CN
China
Prior art keywords
rubber
main spring
plastic
plastic support
mounting hole
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202110469633.7A
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Chinese (zh)
Inventor
陈国栋
李波
龚颖强
刘涛
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Boge Elastmetall Shanghai Co Ltd
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Boge Elastmetall Shanghai Co Ltd
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Filing date
Publication date
Application filed by Boge Elastmetall Shanghai Co Ltd filed Critical Boge Elastmetall Shanghai Co Ltd
Priority to CN202110469633.7A priority Critical patent/CN112937277A/en
Publication of CN112937277A publication Critical patent/CN112937277A/en
Pending legal-status Critical Current

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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
    • B60K5/00—Arrangement or mounting of internal-combustion or jet-propulsion units
    • B60K5/12—Arrangement of engine supports
    • B60K5/1208—Resilient supports
    • 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
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • 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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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Vehicle Body Suspensions (AREA)
  • Springs (AREA)

Abstract

The invention discloses an automobile suspension plastic support, which comprises an injection-molded plastic support body, wherein the plastic support body is in an arch bridge shape; the middle part of the plastic support body is provided with a rubber main spring mounting hole which is through from front to back, a plurality of buckles which protrude inwards are uniformly distributed on the front end surface and the rear end surface of the rubber main spring mounting hole respectively, and the buckles on the front end surface of the rubber main spring mounting hole and the buckles on the rear end surface of the rubber main spring mounting hole are arranged in a staggered manner; two limiting block mounting holes are formed in the upper surface of the plastic support body; and metal inserts are embedded in the front and the rear parts of the bottom ends of the two sides of the plastic support body respectively. The invention also discloses an assembly structure of the automobile suspension plastic bracket and the rubber part, the plastic bracket is adopted to realize light weight, the special buckle design is adopted to ensure the pressing force between the rubber main spring and the plastic bracket, and the rubber limiting block is integrated on the plastic bracket, so that the cost is reduced.

Description

Car suspension plastic support and assembly structure of car suspension plastic support and rubber spare
Technical Field
The invention relates to an automobile suspension plastic support and an assembly structure of the automobile suspension plastic support and a rubber part.
Background
The power assembly suspension (suspension for short) is a key part for connecting the power assembly (an engine and a gearbox or an electric drive system) and a frame or a vehicle body, and plays roles in supporting and positioning the power assembly, isolating vibration transmission and the like. The power assembly suspension support has enough strength to support the power assembly, particularly bears the impact under extreme working conditions such as vehicle collision and the like, has strong dynamic rigidity to ensure the NVH characteristic of the suspension, and needs high temperature resistance, low temperature resistance and corrosion resistance. Therefore, the suspension bracket is generally made of metal materials such as sheet metal, cast steel, cast iron, cast aluminum and the like.
Referring to fig. 1 and 2, in a power assembly suspension in the prior art, a bracket 1 'is connected with the power assembly suspension through a bolt, and a bracket 2' is connected with a frame through a bolt. The rubber main spring mandrel 31', the outer sleeve 32' and the rubber are vulcanized together to form a rubber main spring, which is press-fitted into the bracket 2' by interference fit. The rubber stopper 4' is sleeved on the core shaft 31' of the rubber main spring 3 '. The core shaft 31' of the rubber main spring 3' is connected with the bracket 1' through a bolt. In the prior art, the bracket 1 'and the bracket 2' both adopt metal materials (the density of steel is 7.85 g/cm)3The density of aluminum is 2.7g/cm3) And the requirement for light weight cannot be satisfied, and the need for anti-corrosion treatment imposes environmental and cost pressures. In recent years, with increasingly strict requirements on energy conservation and emission reduction, high-performance plastics can well realize light weight, and are more and more widely applied to the field of automobiles, particularly the field of new energy automobiles. However, if the support 2 'is made of plastic material, when the rubber main spring is press-fitted to the plastic support 2' by interference fit, the pressing force of the rubber main spring cannot meet the requirement due to the fact that the mechanical property of the plastic is much lower than that of the metal. The rubber limiting block 4' is sleeved on the core shaft 31' of the rubber main spring 3', and as the rubber limiting block is a soft pure rubber body, the assembly precision is difficult to guarantee, and the rubber limiting block is easy to fall off in the transportation process after assembly, so that abnormal sound is generated.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides an automobile suspension plastic support and an assembly structure of the automobile suspension plastic support and a rubber part.
One technical scheme for achieving the purpose is as follows: an automobile suspension plastic support comprises a plastic support body formed by injection molding, wherein the plastic support body is in an arch bridge shape;
the middle part of the plastic support body is provided with a rubber main spring mounting hole which is through from front to back, a plurality of buckles which protrude inwards are uniformly distributed on the front end surface and the rear end surface of the rubber main spring mounting hole respectively, and the buckles on the front end surface of the rubber main spring mounting hole and the buckles on the rear end surface of the rubber main spring mounting hole are arranged in a staggered manner;
two limiting block mounting holes are formed in the upper surface of the plastic support body;
and metal inserts are embedded in the front and the rear parts of the bottom ends of the two sides of the plastic support body respectively.
The automobile suspension plastic support comprises a plastic support body and is characterized in that a plurality of lightening holes are formed in the plastic support body.
The automobile suspension plastic support comprises a rubber main spring mounting hole, wherein the number of the buckles on the front end face and the rear end face of the rubber main spring mounting hole is four.
In the above-mentioned automobile suspension plastic bracket, a draft angle of the buckle on the front end face of the rubber main spring mounting hole is opposite to a draft angle of the buckle on the rear end face of the rubber main spring mounting hole.
The automobile suspension plastic support comprises a plastic support body and a buckle, wherein the buckle and the plastic support body are integrally formed through injection molding.
The invention also provides an assembly structure of the automobile suspension plastic bracket and the rubber part, wherein the automobile suspension plastic bracket adopts the automobile suspension plastic bracket; the rubber spare is rubber main spring, wherein:
the rubber main spring is formed by vulcanizing a rubber main spring mandrel and an outer sleeve together; the outer sleeve is formed by plastic injection molding, the rubber main spring is assembled in the rubber main spring mounting hole in an interference fit mode, and the buckles on the front end face and the rear end face of the rubber main spring mounting hole are in one-to-one contact with the front end face and the rear end face of the rubber main spring.
The automobile suspension plastic support adopts the automobile suspension plastic support; the rubber spare is the rubber stopper, wherein:
the rubber limiting block is in an inverted U-shaped shape, two mounting legs are vertically arranged on the lower surface of a top plate of the rubber limiting block, and the bottom end of each mounting leg is a semicircular clamping table; the outer wall surfaces of the two side walls of the rubber limiting block are respectively provided with a plurality of reinforcing ribs; the semicircular clamping tables of the two mounting legs are fixed in the two limiting block mounting holes in a one-to-one correspondence mode, and the two side walls of the rubber limiting blocks are located on the front side and the rear side of the plastic support body in a one-to-one correspondence mode.
The assembling structure of the automobile suspension plastic support and the rubber part is characterized in that two grooves are formed in a top plate of the rubber limiting block, and the two mounting legs are arranged on the lower surfaces of the bottoms of the two grooves in a one-to-one correspondence mode.
By adopting the technical scheme of the automobile suspension plastic support and the assembly structure of the automobile suspension plastic support and the rubber part, the plastic support can meet the performance requirement while realizing light weight, and does not need to be subjected to anticorrosive treatment. The plastic support and the rubber main spring solve the problem that the pressure force of the rubber main spring is insufficient through the buckle on the plastic support body. The rubber stopper is integrated to the plastic support, promotes the assembly precision, solves and shifts easily in transportation and the use and drops even, causes abnormal sound scheduling problem to reduce cost.
Drawings
FIG. 1 is a schematic diagram of a powertrain mount of the prior art;
FIG. 2 is a schematic diagram of an exploded structure of a powertrain mount of the prior art;
FIG. 3 is a perspective view of a suspended plastic support for an automobile according to the present invention;
fig. 4 is a partial enlarged view of the portion X in fig. 3;
FIG. 5 is a top view of an automotive suspension plastic bracket of the present invention;
FIG. 6 is a schematic view of the installation of a rubber stopper;
FIG. 7 is a sectional view taken along line B-B of FIG. 6;
FIG. 8 is a schematic view of the installation of the rubber main spring and the plastic bracket;
FIG. 9 is a sectional view taken along line A-A of FIG. 8;
fig. 10 is a partial enlarged view of the portion Y in fig. 9;
FIG. 11 is an enlarged view of a portion Z of FIG. 9;
FIG. 12 is a schematic structural view of a powertrain mount employing the plastic bracket of the present invention;
fig. 13 is an exploded view of a powertrain mount employing the plastic mount of the present invention.
Detailed Description
In order that those skilled in the art will better understand the technical solution of the present invention, the following detailed description is given with reference to the accompanying drawings:
referring to fig. 3, 4 and 5, an embodiment of the present invention provides a plastic suspension bracket 2 for a vehicle, which includes an injection molded plastic bracket body 20, wherein the plastic bracket body 20 is in an arch bridge shape.
A rubber main spring mounting hole 24 which is through from front to back is formed in the middle of the plastic support body 20, four inward-protruding buckles 22 are uniformly distributed on the front end face and the rear end face of the rubber main spring mounting hole 24 respectively, and the four buckles 22 on the front end face of the rubber main spring mounting hole 24 and the four buckles 22 on the rear end face of the rubber main spring mounting hole 24 are arranged in a staggered mode; two limiting block mounting holes 23 are formed in the upper surface of the plastic support body 20; the front and rear parts of the bottom ends of the two sides of the plastic support body 20 are respectively embedded with metal inserts 21. The plastic support body 21 is provided with a plurality of lightening holes 25, so that the weight of the plastic support body is further lightened, and the light weight is realized.
The draft angle of the buckle 22 on the front end face of the rubber main spring mounting hole 24 is opposite to the draft angle of the buckle on the rear end face of the rubber main spring mounting hole 24, so that the demolding is convenient and the interference size can be ensured. The snap 22 and the plastic bracket body 20 are integrally formed by injection molding, so that additional processes and cost are not caused.
The automobile suspension plastic support 2 is formed by injection molding of a high-performance plastic material, the metal insert 21 is embedded in the plastic support 2 during injection molding, and the metal insert 21 is connected with a frame through a bolt.
Referring to fig. 6 to 11, the present invention further provides an assembly structure of an automotive suspension plastic bracket and a rubber member, wherein the automotive suspension plastic bracket adopts the structure of the automotive suspension plastic bracket 2 in the embodiment; the rubber part is a rubber limiting block 4 and/or a rubber main spring 3.
Referring to fig. 6 and 7, the structure of the rubber stopper 4 is designed according to the shape of the plastic bracket 2. The rubber limiting block 4 is in an inverted U-shaped shape, two mounting legs 41 are vertically arranged on the lower surface of a top plate of the rubber limiting block 4, and the bottom end of each mounting leg 41 is a semicircular clamping table; specifically, two grooves 40 are provided on the top plate of the rubber stopper 4, and two mounting legs 41 are provided on the lower surfaces of the bottoms of the two grooves 40 in a one-to-one correspondence. The outer wall surfaces of the two side walls of the rubber limiting block 4 are respectively provided with a plurality of reinforcing ribs 42, so that the strength of the rubber limiting block 4 can be improved; the semicircular clamping tables of the two mounting legs 41 are fixed in the two limiting block mounting holes 23 of the plastic support 2 in a one-to-one manner through extrusion deformation of rubber, so that the rubber is effectively prevented from falling off easily in transportation, and the mounting precision and firmness of the rubber limiting block 4 are improved. The rubber limiting block 4 has the characteristics of simple structure, light weight, high installation precision, convenience in replacement and long service life.
Referring to fig. 8, 9, 10 and 11, the rubber main spring 3 is formed by vulcanizing the rubber main spring core 31 and the outer case 32; the outer sleeve 32 is formed by plastic injection molding, the rubber main spring 3 is press-fitted in the rubber main spring mounting hole 24 in an interference fit manner, and the buckles 22 on the front end surface and the rear end surface of the rubber main spring mounting hole 24 are in one-to-one contact with the front end surface and the rear end surface of the rubber main spring 3. Like this, the suspension is in the use, and when rubber main spring dabber 31 received the axial force, through the conformal assembly of interference and the spacing backstop effect of buckle 22 of plastic support 2 both sides, promotes rubber main spring 3 and presses out force performance, avoids leading to rubber main spring overcoat 32 to become flexible or drop in plastic support 2 because the plastic creep that plastics long-term use produced.
Referring to fig. 12 and 13, the power assembly mount adopts the plastic support of the vehicle mount and the assembly structure of the plastic support and the rubber member of the invention, the main rubber spring 3 is press-fitted into the main rubber spring mounting hole 24 of the plastic support 2 in an interference fit manner, and the semicircular clamping platforms of the two mounting legs 41 of the rubber stopper 4 are fixed in the two stopper mounting holes 23 of the plastic support 2 in a one-to-one correspondence manner. Support 1 passes through bolted connection on the power assembly suspension, and in the collision that support 1 and plastic support 2 produced because of relative motion, the relative rubber stopper main part of strengthening rib 42 on the rubber stopper 4, earlier with support 1 contact, improve product life.
In conclusion, the plastic support is adopted, so that the automobile suspension plastic support and the assembling structure of the plastic support and the rubber part can meet the performance requirement while realizing light weight, and the anti-corrosion treatment is not needed. The plastic support and the rubber main spring solve the problem that the pressure force of the rubber main spring is insufficient through the buckle on the plastic support body. The rubber stopper is integrated to the plastic support, promotes the assembly precision, solves and shifts easily in transportation and the use and drops even, causes abnormal sound scheduling problem to reduce cost.
It should be understood by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be used as a limitation of the present invention, and that changes and modifications to the above described embodiments are within the scope of the claims of the present invention as long as they are within the spirit and scope of the present invention.

Claims (8)

1. The automobile suspension plastic support is characterized by comprising an injection-molded plastic support body, wherein the plastic support body is in an arch bridge shape;
the middle part of the plastic support body is provided with a rubber main spring mounting hole which is through from front to back, a plurality of buckles which protrude inwards are uniformly distributed on the front end surface and the rear end surface of the rubber main spring mounting hole respectively, and the buckles on the front end surface of the rubber main spring mounting hole and the buckles on the rear end surface of the rubber main spring mounting hole are arranged in a staggered manner;
two limiting block mounting holes are formed in the upper surface of the plastic support body;
and metal inserts are embedded in the front and the rear parts of the bottom ends of the two sides of the plastic support body respectively.
2. The automotive suspension plastic bracket of claim 1, wherein the plastic bracket body is provided with a plurality of lightening holes.
3. The automotive suspension plastic bracket of claim 1, wherein the number of the snap fasteners on the front end surface and the rear end surface of the rubber main spring mounting hole is four.
4. The automotive suspension plastic bracket of claim 1, wherein the draft angle of the catch on the front face of the rubber mainspring mounting hole is opposite to the draft angle of the catch on the rear face of the rubber mainspring mounting hole.
5. The automotive suspension plastic bracket of claim 1, wherein the snap is integrally formed with the plastic bracket body by injection molding.
6. An assembling structure of an automobile suspension plastic bracket and a rubber part, wherein the automobile suspension plastic bracket adopts the automobile suspension plastic bracket as claimed in claim 1; the rubber part is a rubber main spring and is characterized in that:
the rubber main spring is formed by vulcanizing a rubber main spring mandrel and an outer sleeve together; the outer sleeve is formed by plastic injection molding, the rubber main spring is assembled in the rubber main spring mounting hole in an interference fit mode, and the buckles on the front end face and the rear end face of the rubber main spring mounting hole are in one-to-one contact with the front end face and the rear end face of the rubber main spring.
7. An assembling structure of an automobile suspension plastic bracket and a rubber part, wherein the automobile suspension plastic bracket adopts the automobile suspension plastic bracket as claimed in claim 1; the rubber part is a rubber limiting block and is characterized in that:
the rubber limiting block is in an inverted U-shaped shape, two mounting legs are vertically arranged on the lower surface of a top plate of the rubber limiting block, and the bottom end of each mounting leg is a semicircular clamping table; the outer wall surfaces of the two side walls of the rubber limiting block are respectively provided with a plurality of reinforcing ribs; the semicircular clamping tables of the two mounting legs are fixed in the two limiting block mounting holes in a one-to-one correspondence mode, and the two side walls of the rubber limiting blocks are located on the front side and the rear side of the plastic support body in a one-to-one correspondence mode.
8. The assembly structure of the plastic bracket and the rubber part for the automobile suspension according to claim 7, wherein two grooves are formed on a top plate of the rubber stopper, and the two mounting legs are correspondingly arranged on the lower surfaces of the bottoms of the two grooves.
CN202110469633.7A 2021-04-25 2021-04-25 Car suspension plastic support and assembly structure of car suspension plastic support and rubber spare Pending CN112937277A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110469633.7A CN112937277A (en) 2021-04-25 2021-04-25 Car suspension plastic support and assembly structure of car suspension plastic support and rubber spare

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110469633.7A CN112937277A (en) 2021-04-25 2021-04-25 Car suspension plastic support and assembly structure of car suspension plastic support and rubber spare

Publications (1)

Publication Number Publication Date
CN112937277A true CN112937277A (en) 2021-06-11

Family

ID=76233636

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110469633.7A Pending CN112937277A (en) 2021-04-25 2021-04-25 Car suspension plastic support and assembly structure of car suspension plastic support and rubber spare

Country Status (1)

Country Link
CN (1) CN112937277A (en)

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