CN116494698A - Double-cross arm independent suspension - Google Patents
Double-cross arm independent suspension Download PDFInfo
- Publication number
- CN116494698A CN116494698A CN202310362982.8A CN202310362982A CN116494698A CN 116494698 A CN116494698 A CN 116494698A CN 202310362982 A CN202310362982 A CN 202310362982A CN 116494698 A CN116494698 A CN 116494698A
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- CN
- China
- Prior art keywords
- assembly
- swing arm
- arm assembly
- shock absorber
- spiral spring
- 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
Links
- 239000000725 suspension Substances 0.000 title claims abstract description 39
- 230000035939 shock Effects 0.000 claims abstract description 32
- 239000006096 absorbing agent Substances 0.000 claims abstract description 31
- 238000002955 isolation Methods 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 6
- 238000009434 installation Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 230000003139 buffering effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000013016 damping Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002040 relaxant effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G3/00—Resilient suspensions for a single wheel
- B60G3/18—Resilient suspensions for a single wheel with two or more pivoted arms, e.g. parallelogram
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G15/00—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type
- B60G15/02—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
The invention discloses a double-cross arm independent suspension, which comprises: the rotating shaft of the upper swing arm assembly is connected with the auxiliary frame assembly through a fixed bolt; the shock absorber assembly is arranged between the lower swing arm assembly and the upper swing arm assembly; the upper end of the shock absorber assembly is fixed on a shock absorber upper bracket of the auxiliary frame assembly through a gasket and a bolt, and the lower end of the shock absorber assembly is fixed on a shock absorber lower pin of the lower swing arm assembly through a nut; the lower swing arm assembly is arranged at the lowest end and is connected with the auxiliary frame assembly through a fixing pin; the ball pin end of the lower swing arm assembly is connected with the steering knuckle; the lower end of the spiral spring is arranged in a spiral spring clamping groove of the lower swing arm assembly; the adjusting bolt is arranged at the upper end of the spiral spring. The technical content disclosed by the invention can solve the problem of left and right skew of the vehicle body on the premise of not replacing parts; the suspension height can be adjusted according to the whole vehicle requirement; the height of the suspension is adjusted without disassembling parts, and only the tightening length of the adjusting bolt is controlled.
Description
Technical Field
The invention relates to the technical field of automobiles, in particular to a double-cross arm independent suspension.
Background
The suspension system is an elastic member system connecting a vehicle frame and wheels (axles), and has a main function of transmitting forces and moments between the wheels and the vehicle frame and of relaxing impact forces and vibrations transmitted from a road surface to the vehicle frame or the vehicle body.
At present, the market has strict control on the whole vehicle height, the control on the whole vehicle height of a truck mainly realizes the change of the whole vehicle height by adjusting a suspension, the change of the whole vehicle height can be controlled by inflating and deflating an air bag for a vehicle type matched with an air suspension, the height change of the vehicle type matched with an independent suspension is difficult to realize, and the whole vehicle height cannot be adjusted by a suspension system under the condition that parameters of parts are unchanged.
The technical proposal of the prior art is as follows:
the existing truck double-wishbone independent suspension structure is connected with an auxiliary frame and a steering knuckle through an upper swing arm assembly and a lower swing arm assembly, the upper end of a shock absorber assembly is fixedly connected with the auxiliary frame, the lower end of the shock absorber assembly is fixedly connected with the lower swing arm, and different requirements of the whole truck height are met through different designs of damping force and spiral spring stiffness of the shock absorber.
Disadvantages of the prior art:
the existing double-cross arm front independent suspension structure shock absorber assembly is fixedly connected with the auxiliary frame, the height cannot be adjusted after design parameters of the shock absorber and the spiral spring are determined, and if the height adjustment is required to be realized, the adjustment is realized through a piece replacement and debugging mode.
Therefore, how to provide a double-wishbone independent suspension becomes a technical problem to be solved in the art.
Disclosure of Invention
The invention aims to provide a double-cross arm independent suspension.
According to the invention, there is provided a double-wishbone independent suspension, comprising an upper swing arm assembly, a shock absorber assembly, a subframe assembly, a lower swing arm assembly, a coil spring, an adjusting bolt and a knuckle;
the rotating shaft of the upper swing arm assembly is connected with the auxiliary frame assembly through a fixed bolt; the shock absorber assembly is arranged between the lower swing arm assembly and the upper swing arm assembly; the upper end of the shock absorber assembly is fixed on a shock absorber upper bracket of the auxiliary frame assembly through a gasket and a bolt, and the lower end of the shock absorber assembly is fixed on a shock absorber lower pin of the lower swing arm assembly through a nut; the lower swing arm assembly is arranged at the lowest end and is connected with the auxiliary frame assembly through a fixing pin; the ball pin end of the lower swing arm assembly is connected with the steering knuckle; the lower end of the spiral spring is arranged in a spiral spring clamping groove of the lower swing arm assembly; the adjusting bolt is arranged at the upper end of the spiral spring.
Optionally, the subframe assembly includes: the device comprises a spiral spring shield, an adjusting bolt guide post and a shock absorber upper bracket assembly;
the rotating shaft end of the upper swing arm assembly is connected with the upper support assembly of the shock absorber through a fixing bolt; the adjusting bolt guide post is welded on the spiral spring shield, and the spiral spring shield is welded on the upper support assembly of the shock absorber.
Optionally, the adjusting bolt guide post, the helical spring shield and the damper upper bracket assembly welding surface are on the same axis.
Optionally, the coil spring shield is mounted outside the coil spring.
Optionally, the adjusting bolt is mounted at the upper end of the coil spring through an adjusting bolt guide post.
Optionally, the double-wishbone independent suspension further includes: a coil spring upper support;
the spiral spring upper support seat is sleeved on the auxiliary frame adjusting bolt guide post;
the end head of the adjusting bolt is of a spherical structure, and the bottom of the spiral spring upper support is of a spherical groove structure; and the lower end of the adjusting bolt is in spherical fit with the upper support of the spiral spring.
Optionally, the double-wishbone independent suspension further includes: vibration isolator;
the vibration isolation pad is sleeved on the spiral spring upper support, and the spiral spring is sleeved on the vibration isolation pad.
Optionally, the lower swing arm assembly is rotatable about an axis of the fixed pin.
According to the technical content disclosed by the invention, the method has the following beneficial effects:
1. the problem of left and right skew of the vehicle body can be solved on the premise of not replacing parts;
2. the suspension height can be adjusted according to the whole vehicle requirement;
3. the height of the suspension is adjusted without disassembling parts, and only the tightening length of the adjusting bolt is controlled;
4. the service life of parts can be effectively prolonged by the matching structure of the adjusting bolt and the spiral spring upper support;
5. the disassembly and the replacement are convenient, the time and the labor are saved, and the operation efficiency is improved.
Other features of the present invention and its advantages will become apparent from the following detailed description of exemplary embodiments of the invention, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.
FIG. 1a is a schematic illustration of a double wishbone independent suspension provided in accordance with an embodiment;
FIG. 1b is a schematic illustration of a double wishbone independent suspension provided in accordance with an embodiment;
FIG. 2 is a schematic view of a portion of a double wishbone independent suspension subframe provided in accordance with an embodiment;
FIG. 3 is a schematic diagram of the upper end installation of a coil spring provided according to an embodiment;
FIG. 4 is an exploded view of the upper end mounting of a coil spring according to an embodiment;
FIG. 5 is a schematic view of a coil spring lower end installation provided in accordance with an embodiment;
FIG. 6 is a schematic view of an adjusting bolt structure provided in accordance with an embodiment;
FIG. 7 is a cut-away view of a coil spring upper mount provided in accordance with an embodiment;
FIG. 8 is a diagram of an adjustment bolt mated with a helical spring upper mount according to an embodiment;
FIG. 9a is a schematic diagram of an upper swing arm assembly installation provided in accordance with an embodiment;
FIG. 9b is a schematic diagram of an upper swing arm assembly installation provided in accordance with an embodiment;
FIG. 10 is a schematic diagram of a lower swing arm assembly installation provided in accordance with an embodiment;
FIG. 11 is a schematic diagram of a shock absorber assembly installation provided in accordance with an embodiment.
Reference numerals illustrate: 1-upper swing arm assembly, 101-rotating shaft, 102-fixing bolt, 2-damper assembly, 3-subframe assembly, 301-coil spring shield, 302-adjusting bolt guide post, 303-damper upper bracket assembly, 4-lower swing arm assembly, 401-coil spring clamping groove, 402-fixing pin, 403-damper lower pin, 5-coil spring, 6-coil spring upper support, 7-vibration isolator, 8-adjusting bolt, 9-knuckle.
Detailed Description
Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless it is specifically stated otherwise.
The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the invention, its application, or uses.
Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of exemplary embodiments may have different values.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.
According to the present invention, as shown in fig. 1a to 11, there is provided a double-wishbone independent suspension, as shown in fig. 1a to 1b, comprising an upper swing arm assembly 1, a damper assembly 2, a subframe assembly 3, a lower swing arm assembly 4, a coil spring 5, an adjusting bolt 8 and a knuckle 9;
the rotating shaft 101 of the upper swing arm assembly 1 is connected with the auxiliary frame assembly 3 through a fixed bolt 102; the shock absorber assembly 2 is arranged between the lower swing arm assembly 4 and the upper swing arm assembly 1; as shown in fig. 11, the upper end of the damper assembly 2 is fixed to the damper upper bracket of the subframe assembly 3 by a washer and a bolt, and the lower end thereof is fixed to the damper lower pin 403 of the lower swing arm assembly 4 by a nut, so as to mainly play a role in damping and buffering; the lower swing arm assembly 4 is arranged at the lowest end and is connected with the auxiliary frame assembly 3 through a fixing pin 402; the ball pin end of the lower swing arm assembly 4 is connected with a steering knuckle 9; as shown in fig. 5, the lower end of the coil spring 5 is mounted in a coil spring clamping groove 401 of the lower swing arm assembly 4; the adjusting bolt 8 is mounted at the upper end of the coil spring 5. The coil spring 5 is mainly used for relieving the shock absorption effects such as road impact and the like. The adjusting bolts 8 are used to adjust the suspension height effect.
In some embodiments, subframe assembly 3 is only one example, representing various types of subframe assemblies.
In some embodiments, the knuckle 9 is only an example, representing various types of knuckles.
As shown in fig. 2, the subframe assembly 3 includes: a coil spring shield 301, an adjusting bolt guide post 302, and a damper upper bracket assembly 303; the rotating shaft end of the upper swing arm assembly 1 is connected with the upper shock absorber bracket assembly 303 through a fixed bolt; the adjusting bolt guide post 302 is welded to the coil spring housing 301, and the coil spring housing 301 is welded to the damper upper bracket assembly 303. The adjustment bolt guide post 302, coil spring shield 301 and damper upper bracket assembly 303 are welded on the same axis as shown in fig. 9 a-9 b.
As shown in fig. 3, the coil spring shield 301 is installed outside the coil spring 5. The coil spring shield 301 functions to protect the coil spring 5 from knocks and to prevent the coil spring 5 from coming out.
As shown in fig. 4, the adjusting bolt 8 is mounted on the upper end of the coil spring 5 through an adjusting bolt guide post 302, and the adjusting bolt guide post 302 functions to provide a guide function for the adjusting bolt 8.
The double-wishbone independent suspension further comprises: a coil spring upper support 6;
the spiral spring upper support 6 is sleeved on the auxiliary frame adjusting bolt guide post 302;
as shown in fig. 6 and 8, the end of the adjusting bolt 8 is in a spherical structure, and the bottom of the spiral spring upper support 6 is in a spherical groove structure; the lower end of the adjusting bolt 8 is in spherical fit with the spiral spring upper support 6.
As shown in fig. 7, the coil spring upper mount 6 is mainly used for supporting the coil spring 5 and the adjusting bolt 8.
The double-wishbone independent suspension further comprises: a vibration isolator 7;
as shown in fig. 10, the vibration isolator 7 is sleeved on the spiral spring upper support 6, and the spiral spring 5 is sleeved on the vibration isolator 7. The vibration isolator 7 is used for buffering between the coil spring 5 and the coil spring upper support 6.
The lower swing arm assembly 4 is rotatable about the axis of the fixed pin 402.
The specific working principle is as follows:
the adjustment of the suspension height can be realized by adjusting the tightening depth of the adjusting bolt 8, and parts are not required to be replaced. The height of the suspension can be adjusted by controlling the tightening depth of the adjusting bolt 8, the deeper the tightening depth is, the shorter the exposed length of the adjusting bolt 8 is, the more the end head of the adjusting bolt 8 props against the upper support 6 of the spiral spring, the more the spiral spring 5 is compressed, the larger the spring reaction force is, so that the height of the frame is increased, and the height of the whole vehicle is increased; the shallower the tightening depth, the longer the exposed length of the adjusting bolt 8, the less the coil spring upper support 6 moves downwards, the less the coil spring 5 compresses, the smaller the spring reaction force, the lower the height of the frame, and the lower the whole height of the vehicle, as shown in fig. 3, 4 and 8.
According to the invention, the matching structure of the adjusting bolt 8 and the spiral spring upper support 6 is shown in fig. 8, the end head of the adjusting bolt 8 is in a spherical structure, the bottom of the spiral spring upper support 6 is in a spherical groove structure as shown in fig. 6, and the matching surface structure has the advantages that the contact stress of the end head of the adjusting bolt 8 and the groove at the bottom of the spiral spring upper support 6 can be effectively reduced, the fretting fatigue life of parts is further prolonged, in addition, the friction of the parts can be reduced through filling lubricating grease, and the movement noise is reduced.
In the whole car motion process, coil spring 5 is not along coil spring axial motion completely, and coil spring 5 can produce the orbit of around adjusting bolt 8 motion, and the spring can take place warp etc. and warp, and the cooperation structure of sphere contact just can play the effect of adjusting coil spring offset angle this moment, and it is limited its motion in limited sphere scope, guarantees coil spring effective work, promotes spare part life-span.
In summary, the technical content disclosed by the invention can solve the problem of left and right skew of the vehicle body on the premise of not replacing parts; the suspension height can be adjusted according to the whole vehicle requirement; the height of the suspension is adjusted without disassembling parts, and only the tightening length of the adjusting bolt is controlled; the service life of parts can be effectively prolonged by the matching structure of the adjusting bolt and the spiral spring upper support; the disassembly and the replacement are convenient, the time and the labor are saved, and the operation efficiency is improved.
While certain specific embodiments of the invention have been described in detail by way of example, it will be appreciated by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.
Claims (8)
1. A double wishbone independent suspension comprising: the device comprises an upper swing arm assembly, a shock absorber assembly, a subframe assembly, a lower swing arm assembly, a spiral spring, an adjusting bolt and a knuckle;
the rotating shaft of the upper swing arm assembly is connected with the auxiliary frame assembly through a fixed bolt; the shock absorber assembly is arranged between the lower swing arm assembly and the upper swing arm assembly; the upper end of the shock absorber assembly is fixed on a shock absorber upper bracket of the auxiliary frame assembly through a gasket and a bolt, and the lower end of the shock absorber assembly is fixed on a shock absorber lower pin of the lower swing arm assembly through a nut; the lower swing arm assembly is arranged at the lowest end and is connected with the auxiliary frame assembly through a fixing pin; the ball pin end of the lower swing arm assembly is connected with the steering knuckle; the lower end of the spiral spring is arranged in a spiral spring clamping groove of the lower swing arm assembly; the adjusting bolt is arranged at the upper end of the spiral spring.
2. The double wishbone independent suspension according to claim 1, wherein the subframe assembly comprises: the device comprises a spiral spring shield, an adjusting bolt guide post and a shock absorber upper bracket assembly;
the rotating shaft end of the upper swing arm assembly is connected with the upper support assembly of the shock absorber through a fixing bolt; the adjusting bolt guide post is welded on the spiral spring shield, and the spiral spring shield is welded on the upper support assembly of the shock absorber.
3. The double wishbone independent suspension according to claim 2, wherein the adjusting bolt guide post, coil spring shield and damper upper bracket assembly weld faces are on the same axis.
4. A double wishbone independent suspension according to claim 3 wherein the helical spring shield is mounted outboard of the helical spring.
5. The double wishbone independent suspension according to claim 4, wherein the adjusting bolt is mounted to the upper end of the coil spring by an adjusting bolt guide post.
6. The double wishbone independent suspension according to claim 5, further comprising: a coil spring upper support;
the spiral spring upper support seat is sleeved on the auxiliary frame adjusting bolt guide post;
the end head of the adjusting bolt is of a spherical structure, and the bottom of the spiral spring upper support is of a spherical groove structure; and the lower end of the adjusting bolt is in spherical fit with the upper support of the spiral spring.
7. The double wishbone independent suspension according to claim 6, further comprising: vibration isolator;
the vibration isolation pad is sleeved on the spiral spring upper support, and the spiral spring is sleeved on the vibration isolation pad.
8. The double wishbone independent suspension according to claim 7, wherein the lower swing arm assembly is rotatable about an axis of the fixed pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310362982.8A CN116494698A (en) | 2023-04-07 | 2023-04-07 | Double-cross arm independent suspension |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310362982.8A CN116494698A (en) | 2023-04-07 | 2023-04-07 | Double-cross arm independent suspension |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116494698A true CN116494698A (en) | 2023-07-28 |
Family
ID=87315859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310362982.8A Pending CN116494698A (en) | 2023-04-07 | 2023-04-07 | Double-cross arm independent suspension |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116494698A (en) |
-
2023
- 2023-04-07 CN CN202310362982.8A patent/CN116494698A/en active Pending
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