CN211969103U - Combined type air spring suspension system and vehicle - Google Patents
Combined type air spring suspension system and vehicle Download PDFInfo
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- CN211969103U CN211969103U CN202020333468.3U CN202020333468U CN211969103U CN 211969103 U CN211969103 U CN 211969103U CN 202020333468 U CN202020333468 U CN 202020333468U CN 211969103 U CN211969103 U CN 211969103U
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Abstract
The utility model relates to a combined type air spring suspension system and vehicle. The combined type air spring suspension system is connected with the frame and the plate springs through the watt linkage mechanism, the rocker arms of the watt linkage mechanism are hinged to the frame, the two transverse guide rods are hinged to the plate springs on the two sides respectively, when the frame and the axle move up and down relatively, the up-and-down movement track of the rocker arms of the watt linkage mechanism is approximate to a straight line, the transverse movement amount of the frame and the axle is limited, the stability of the suspension system is improved, and the vehicle deviation risk is reduced. In the swing process of the rocker arm, the plate spring can be pulled or pushed to deform transversely through the two transverse guide rods, the roll stiffness of the suspension system is increased, and the problems of low stiffness and poor stability of the conventional composite air spring suspension system caused by large transverse movement of the vehicle frame relative to the vehicle axle are solved.
Description
Technical Field
The utility model relates to a combined type air spring suspension system and vehicle.
Background
The combined type air spring suspension system integrates an air spring on the basis of a plate spring suspension, takes a plate spring and a transverse thrust rod as a guide mechanism, and takes the plate spring and the air spring as a buffering vibration damping mechanism, so that the combined type air spring suspension system has the advantages of low cost and small space, and also has the advantage of high comfort of the air spring. Chinese patent No. CN106394151B entitled announcement date 2019.01.01 discloses a composite air spring suspension device, which comprises a frame assembly, a rear axle assembly, a guide mechanism and a buffer damping mechanism, wherein the guide mechanism comprises a steel plate spring and a transverse stay bar, one end of the transverse stay bar is hinged on the frame, and the other end of the transverse stay bar is hinged on an air spring support to transmit transverse force. When the frame moves up and down relative to the axle, the frame can do circular motion under the guiding action of the transverse support rod, namely the frame moves up and down relative to the axle, and simultaneously has larger motion amount in the left and right directions relative to the axle, the stability is poorer, the vehicle is easy to deviate, and meanwhile, the suspension system has low roll rigidity and larger roll of the vehicle.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a combined type air spring suspension system, which is used for solving the problems of low roll stiffness and poor stability of the prior combined type air spring suspension system caused by large transverse movement amount of a frame relative to an axle; additionally, the utility model aims at providing an use above-mentioned combined type air spring suspension system's vehicle for solve present easy off tracking of vehicle that adopts combined type air spring suspension system and the great problem that heels.
The utility model discloses a combined type air spring suspension system adopts following technical scheme:
a composite air spring suspension system comprising:
an axle;
the plate spring is fixed with the axle, one end of the plate spring is a frame hinged end hinged with the frame, and the other end of the plate spring is an air spring end;
the air spring comprises an air bag, an air bag base and an air bag cover plate, wherein the air bag base is fixed at the end of the air spring, and the air bag cover plate is used for being connected with the frame to enable the air spring to be positioned between the end of the air spring and the frame;
the composite air spring suspension system further comprises:
the watt linkage mechanism is arranged between the two leaf springs which are arranged left and right and comprises a rocker arm, a first transverse guide rod and a second transverse guide rod;
the rocker arm is used for being hinged on the frame;
one end of the first transverse guide rod and one end of the second transverse guide rod are hinged to two ends of the rocker arm respectively, the other end of the first transverse guide rod is hinged to the air spring end of the left plate spring, and the other end of the second transverse guide rod is hinged to the air spring end of the right plate spring.
The utility model has the advantages that: the utility model discloses a combined type air spring suspension system passes through watt link mechanism and connects frame and leaf spring, and watt link mechanism's rocking arm articulates on the frame, and two transverse guide arms are articulated with the leaf spring of both sides respectively, and when frame and axle relative motion from top to bottom, watt link mechanism's rocking arm up-and-down motion orbit is similar straight line, has restricted the transverse motion amount of frame with the axle, has improved suspension system's stability, reduces the vehicle off tracking risk. In the swing process of the rocker arm, the plate spring can be pulled or pushed to deform transversely through the two transverse guide rods, the roll stiffness of the suspension system is increased, and the problems of low stiffness and poor stability of the conventional composite air spring suspension system caused by large transverse movement of the vehicle frame relative to the vehicle axle are solved.
Furthermore, a bracket is fixed at the air spring end of the plate spring, and the first transverse guide rod and the second transverse guide rod are hinged on the bracket corresponding to the air spring end.
Has the advantages that: the installation of the transverse guide rod is facilitated through the bracket.
Further, the air bag base is fixed on a bracket at the end of the air spring.
Has the advantages that: the air bag base and the transverse guide rod are both fixed on the bracket, and the air bag base and the transverse guide rod are integrated with the mounting structure and are compact in structure.
Further, the first transverse guide rod and the second transverse guide rod are arranged on the same side of the rocker arm.
Has the advantages that: the two transverse guide rods are positioned on the same side of the rocker arm, so that the occupied space of the watt linkage mechanism is reduced, and the structure of the suspension system is more compact.
The utility model discloses technical scheme of vehicle:
the vehicle includes frame and combined type air spring suspension system, and combined type air spring suspension system includes:
an axle;
the plate spring is fixed with the axle, one end of the plate spring is a frame hinged end hinged with the frame, and the other end of the plate spring is an air spring end;
the air spring comprises an air bag, an air bag base and an air bag cover plate, wherein the air bag base is fixed at the end of the air spring, and the air bag cover plate is used for being connected with the frame to enable the air spring to be positioned between the end of the air spring and the frame;
the composite air spring suspension system further comprises:
the watt linkage mechanism is arranged between the two leaf springs which are arranged on the left and the right, and comprises a rocker arm, a first transverse guide rod and a second transverse guide rod,
the rocker arm is hinged on the frame;
one end of the first transverse guide rod and one end of the second transverse guide rod are hinged to two ends of the rocker arm respectively, the other end of the first transverse guide rod is hinged to the air spring end of the left plate spring, and the other end of the second transverse guide rod is hinged to the air spring end of the right plate spring.
The utility model has the advantages that: the utility model discloses a combined type air spring suspension system passes through watt link mechanism and connects frame and leaf spring, and watt link mechanism's rocking arm articulates on the frame, and two transverse guide arms are articulated with the leaf spring of both sides respectively, and when frame and axle relative motion from top to bottom, watt link mechanism's rocking arm up-and-down motion orbit is similar straight line, has restricted the transverse motion amount of frame with the axle, has improved suspension system's stability, reduces the vehicle off tracking risk. In the swing process of the rocker arm, the plate spring can be pulled or pushed to deform transversely through the two transverse guide rods, the roll stiffness of the suspension system is increased, and the problems that the existing vehicle adopting the composite air spring suspension system is easy to deviate and has large roll are solved.
Furthermore, a bracket is fixed at the air spring end of the plate spring, and the first transverse guide rod and the second transverse guide rod are hinged on the bracket corresponding to the air spring end.
Has the advantages that: the installation of the transverse guide rod is facilitated through the bracket.
Further, the air bag base is fixed on a bracket at the end of the air spring.
Has the advantages that: the air bag base and the transverse guide rod are both fixed on the bracket, and the air bag base and the transverse guide rod are integrated with the mounting structure and are compact in structure.
Further, the first transverse guide rod and the second transverse guide rod are arranged on the same side of the rocker arm.
Has the advantages that: the two transverse guide rods are positioned on the same side of the rocker arm, so that the occupied space of the watt linkage mechanism is reduced, and the structure of the suspension system is more compact.
Further, the vehicle frame comprises a rocker arm mounting beam with a concave middle part, and the rocker arm is hinged on the concave part of the rocker arm mounting beam.
Has the advantages that: the middle part of the rocker arm mounting beam is concave, and the overall strength is high.
Furthermore, the first transverse guide rod and the second transverse guide rod are positioned on the same side of the rocker arm, and the rocker arm mounting beam is positioned on one side of the rocker arm, which is back to the first transverse guide rod.
Has the advantages that: the occupied space of the watt linkage mechanism is reduced, and the structure of the suspension system is more compact.
Drawings
FIG. 1 is a schematic structural view of an embodiment 1 of the composite air spring suspension system of the present invention;
FIG. 2 is a left side view of FIG. 1;
fig. 3 is a schematic view of an assembly structure of an air spring suspension system and a vehicle frame according to embodiment 1 of the present invention;
fig. 4 is a schematic view of an assembly structure of a watt linkage mechanism and a frame in embodiment 1 of the composite air spring suspension system of the present invention;
FIG. 5 is a schematic structural diagram of a Watt linkage mechanism in embodiment 1 of the composite air spring suspension system of the present invention;
figure 6 is a schematic diagram of a composite air spring suspension system of embodiment 1 of the present invention before the mounting of the watt linkage to the suspension system;
fig. 7 is a schematic view of an assembly structure of an air spring and a bracket according to embodiment 1 of the composite air spring suspension system of the present invention;
FIG. 8 is a schematic view of the bracket of embodiment 1 of the combined air spring suspension system of the present invention;
FIG. 9 is a bottom view of FIG. 8;
figure 10 is an isometric view of a bracket in embodiment 1 of the composite air spring suspension system of the present invention;
figure 11 is a schematic diagram of the watt linkage of embodiment 1 of the composite air spring suspension system of the present invention, shown in isolation (dashed lines indicate the locus of the center point of the rocker arm);
in the figure: 1-a plate spring; 11-frame hinged end; 12-air spring end; 13-an upper plate body; 14-a lower plate body; 2-a frame; 21-rocker arm mounting beam; 3-a leaf spring support; 4-a bracket; 41-front riser; 42-a pallet; 43-rear riser; 44-leaf spring fixing hole; 45-airbag base fixing holes; 46-guide bar hinge holes; 5, an air spring; 51-an airbag; 52-airbag base; 53-airbag cover plate; a 61-U-shaped bolt; 62-a backing plate; 71-a rocker arm; 72-first transverse guide; 73-a second transverse guide; 74-articulated shaft; 75-a second transverse-guide-bar hinge axis; 81-fixing bolts; 82-fixing the bolt.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention, i.e., the described embodiments are only some, but not all embodiments of the invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.
It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The features and properties of the present invention are described in further detail below with reference to examples.
The utility model discloses a combined type air spring suspension system's embodiment 1:
as shown in fig. 1 to 5, the composite air spring suspension system includes an axle (not shown in the drawings) and two plate springs 1, the two plate springs 1 are arranged left and right, the front end of the plate spring 1 is a frame hinged end 11, a plate spring support 3 is fixed on the frame 2, the frame hinged end 11 is hinged on the plate spring support 3, the rear end of the plate spring 1 is an air spring end 12, the air spring end 12 is fixed with a bracket 4, and an air spring 5 is fixed on the bracket 4. The plate spring 1 is fixed on the axle through the U-shaped bolt 61 and the backing plate 62, the plate spring 1 is arranged on the upper side of the backing plate 62 and on the lower side of the axle in the embodiment, and the fixing position of the plate spring 1 and the axle is close to the end 12 of the air spring 5 and far away from the articulated end 11 of the frame.
The air spring 5 comprises an air bag 51, an air bag base 52 and an air bag cover plate 53, wherein the air bag base 52 is fixed on the bracket 4, the air bag cover plate 53 is fixed on the frame 2, and the air spring 5 is arranged between the air spring end 12 and the frame 2.
As shown in fig. 6 to 10, two leaf spring fixing holes 44 are provided on the bracket 4 in a front-rear arrangement, the bracket 4 is fixed to the air spring end 12 of the leaf spring 1 by fixing bolts 81 passing through the leaf spring fixing holes 44, in this embodiment, the bracket 44 is formed of a U-shaped plate with a downward opening, and includes a front riser 41, a rear riser 43, and a top pallet 42, the front riser 41, the rear riser 43 are arranged in a front-rear arrangement, and the leaf spring fixing holes 44 are provided on the pallet 42.
The plate spring 1 comprises an upper plate body 13 and a lower plate body 14 which are stacked up and down, the rear end of the upper plate body 13 extends backwards and overhangs the rear side of the lower plate body 14, the bracket 4 is fixed at the rear end of the upper plate body 13, the supporting plate 42 is positioned on the upper side of the rear end of the upper plate body 13 and fixed through a fixing bolt 81, the length of the front vertical plate 41 in the left-right direction is smaller than that of the rear vertical plate 43, the front vertical plate 41 avoids the upper plate body 13 in the left-right direction, and the rear vertical plate 43 is positioned and stopped with the rear end face of the upper plate body 13. The airbag base 52 is fixed on the supporting plate 42 of the bracket through the fixing bolt 82, the supporting plate 42 is provided with an airbag base fixing hole 45, and the airbag base fixing hole 45 is positioned at the inner side of the plate spring fixing hole 44 to avoid mutual interference. The fixing bolt 82 passes through the airbag base fixing hole 45 to fix the airbag base 52.
In order to ensure the stability of the frame 2 and the axle and improve the rigidity of the suspension, the combined type air spring suspension system further comprises a watt linkage mechanism which is a mature three-linkage mechanism in the prior art. As shown, the watt linkage is arranged between two leaf springs 1. The watt linkage comprises a rocker arm 71, a first transverse link 72 and a second transverse link 73, wherein the rocker arm 71 is arranged between the first transverse link 72 and the second transverse link 73, the first transverse link 72 is arranged on the left side, the second transverse link 73 is arranged on the right side, and the rocker arm 71 is hinged on the vehicle frame 2. As shown in fig. 1 and 2, the swing arm 71 is hinged at a middle portion thereof to the frame 2 via a hinge shaft 74 extending forward and backward, and is hinged at both ends thereof to a first transverse link 72 and a second transverse link 73, respectively. A hinge shaft 74 at which the swing arm 71 is hinged to the frame 2 extends horizontally forward and rearward.
In order to facilitate installation and reduce the occupied space of the watt linkage, in this embodiment, the vehicle frame 2 includes a frame body and a rocker arm mounting beam 21 fixed on the frame body, the rocker arm mounting beam 21 is a V-shaped beam with a concave middle portion, and the rocker arm 71 is hinged at the lowest position of the rocker arm mounting beam 21. The rocker arm 71 is on the front side of the rocker arm mounting beam 21 and both transverse guide rods are on the front side of the rocker arm 71, i.e. the rocker arm mounting beam 21 is on the side of the rocker arm facing away from the first transverse guide rod 72. The watt linkage and the frame 2 are more compact because the rocker mounting beam 21 and the two transverse guide rods are located on both sides of the rocker arm 71, respectively.
As shown in fig. 2 and 3, both lateral guide rods are hinged to the rear side of the corresponding bracket 4, a first lateral guide rod 72 is hinged to the left bracket 4, a second lateral guide rod 73 is hinged to the right bracket 4, and an air spring 5 is installed on the upper side of the corresponding bracket 4. First horizontal guide bar 72 and second horizontal guide bar 73 articulate respectively in the back riser 43 rear side that corresponds bracket 4, and the articulated shaft passes two risers that correspond bracket 4, all is equipped with the guide bar hinge hole 46 that supplies the articulated shaft to pass on two risers of bracket 4, and guide bar hinge hole 46, leaf spring fixed orifices 44, gasbag base fixed orifices 45 are at the interval in the left and right directions to avoid mutual interference, be convenient for install.
In this embodiment, in order to cushion the impact between articulated shaft and the shaft hole, all set up rubber bush between each articulated shaft and shaft hole, rubber bush also plays lubricated effect simultaneously.
The utility model discloses a suspension system adopts watt link mechanism as guiding mechanism, can make the relative motion of two parts on a straight line as far as possible, as shown in fig. 11, rocking arm 71 mid point is for a straight line of motion trail approximation of bracket 4, and when frame 2 was for axle up-and-down motion promptly, the offset was very little about, and frame 2 motion trail was basically on vertical line, reduced the risk of vehicle off tracking. When the vehicle body moves in a counterclockwise rolling manner, the middle rocker arm 71 rotates in a counterclockwise manner, and the brackets 4 at both ends are pushed to move outward, so that the rolling rigidity of the suspension system is increased even if the bush and the leaf spring 1 are deformed in the lateral direction. In a similar way, when the vehicle body moves in a clockwise rolling manner, the brackets 4 at the two ends are pulled to move inwards, and the rolling movement of the vehicle body relative to the axle is converted into the transverse deformation of the bushing and the steel plate spring, so that the rolling degree of the vehicle is reduced, and the deviation risk of the vehicle is reduced.
When the vehicle moves, the utility model discloses a combined type air spring suspension system is under watt link mechanism's effect, and 2 interact on horizontal with the leaf spring 1 of both sides during the up-and-down motion of frame, make the automobile body for the movement track of axle on vertical line basically, improve vehicle off tracking performance, turn into the carriage for the heeling motion of axle bush and leaf spring 1's lateral deformation, increased suspension system's rigidity, improve suspension system's stability, reduce vehicle off tracking risk.
The utility model discloses a concrete embodiment 2 of combined type air spring suspension system, the difference of the combined type air spring suspension system structure in this embodiment and above-mentioned concrete embodiment 1 only lies in: the air spring is directly fixed on the plate spring. In this embodiment, no bracket is provided.
The utility model discloses a concrete embodiment 3 of combined type air spring suspension system, the difference of the structure of combined type air spring suspension system in this embodiment and above-mentioned concrete embodiment 1 only lies in: in this embodiment, two transverse guide rods are connected to the bracket, and the airbag base is fixed to the leaf spring.
The utility model discloses a concrete embodiment 4 of combined type air spring suspension system, the difference of the structure of combined type air spring suspension system in this embodiment and above-mentioned concrete embodiment 1 only lies in: in this embodiment, two transverse guide rods are arranged on two opposite sides of the rocker arm.
The utility model discloses a combined type air spring suspension system's embodiment 5, combined type air spring suspension system structure in this embodiment only lies in with the difference of above-mentioned embodiment 1: the fixed rod extends downwards on the frame, and the rocker arm is hinged on the fixed rod. In other embodiments, the rocker arm mounting beam may also be a horizontally extending beam.
The utility model discloses a combined type air spring suspension system's embodiment 6, combined type air spring suspension system structure in this embodiment only lies in with the difference of above-mentioned embodiment 1: the bracket is formed by a square tube fixed on the plate spring and extending left and right.
The utility model discloses a concrete embodiment of vehicle, vehicle include frame and combined type air spring suspension system, combined type air spring suspension system's structure and the structure of frame and the arbitrary embodiment of the aforesaid structure the same, specifically no longer describe.
The above description is only for the preferred embodiment of the present invention, and the present invention is not limited thereto, the protection scope of the present invention is defined by the claims, and all structural changes equivalent to the contents of the description and drawings of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A composite air spring suspension system comprising:
an axle;
the plate spring is fixed with the axle, one end of the plate spring is a frame hinged end hinged with the frame, and the other end of the plate spring is an air spring end;
the air spring comprises an air bag, an air bag base and an air bag cover plate, wherein the air bag base is fixed at the end of the air spring, and the air bag cover plate is used for being connected with the frame to enable the air spring to be positioned between the end of the air spring and the frame;
it is characterized in that the composite air spring suspension system further comprises:
the watt linkage mechanism is arranged between the two leaf springs which are arranged left and right and comprises a rocker arm, a first transverse guide rod and a second transverse guide rod;
the rocker arm is used for being hinged on the frame;
one end of the first transverse guide rod and one end of the second transverse guide rod are hinged to two ends of the rocker arm respectively, the other end of the first transverse guide rod is hinged to the air spring end of the left plate spring, and the other end of the second transverse guide rod is hinged to the air spring end of the right plate spring.
2. The composite air spring suspension system of claim 1, wherein a bracket is attached to the air spring end of the leaf spring, and wherein the first and second transverse links are hinged to the bracket corresponding to the air spring end.
3. The composite air spring suspension system of claim 2, wherein said air bag base is secured to a bracket at the air spring end.
4. The compound air spring suspension system of claim 1, 2 or 3, wherein the first and second transverse links are on the same side of the rocker arm.
5. A vehicle comprising a frame and a composite air spring suspension system, the composite air spring suspension system comprising:
an axle;
the plate spring is fixed with the axle, one end of the plate spring is a frame hinged end hinged with the frame, and the other end of the plate spring is an air spring end;
the air spring comprises an air bag, an air bag base and an air bag cover plate, wherein the air bag base is fixed at the end of the air spring, and the air bag cover plate is connected with the frame to enable the air spring to be positioned between the end of the air spring and the frame;
it is characterized in that the composite air spring suspension system further comprises:
the watt linkage mechanism is arranged between the two leaf springs which are arranged on the left and the right, and comprises a rocker arm, a first transverse guide rod and a second transverse guide rod,
the rocker arm is hinged on the frame;
one end of the first transverse guide rod and one end of the second transverse guide rod are hinged to two ends of the rocker arm respectively, the other end of the first transverse guide rod is hinged to the air spring end of the left plate spring, and the other end of the second transverse guide rod is hinged to the air spring end of the right plate spring.
6. The vehicle of claim 5, wherein the leaf spring has an air spring end with a bracket, and the first and second transverse links are hinged to the bracket at the respective air spring end.
7. The vehicle of claim 6, wherein the airbag base is secured to a bracket at the air spring end.
8. The vehicle of claim 5, 6 or 7, characterized in that the first and second transverse guide rods are on the same side of the rocker arm.
9. A vehicle as claimed in claim 5, 6 or 7, wherein the frame comprises a centrally recessed rocker arm mounting cross member, the rocker arm being hinged to a recessed portion of the rocker arm mounting cross member.
10. The vehicle of claim 9, wherein the first and second transverse guide rods are on a same side of the rocker arm, and the rocker arm mounting beam is on a side of the rocker arm facing away from the first transverse guide rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020333468.3U CN211969103U (en) | 2020-03-17 | 2020-03-17 | Combined type air spring suspension system and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020333468.3U CN211969103U (en) | 2020-03-17 | 2020-03-17 | Combined type air spring suspension system and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211969103U true CN211969103U (en) | 2020-11-20 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020333468.3U Active CN211969103U (en) | 2020-03-17 | 2020-03-17 | Combined type air spring suspension system and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211969103U (en) |
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2020
- 2020-03-17 CN CN202020333468.3U patent/CN211969103U/en active Active
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Address after: 450061 Yudao Road, Guancheng District, Zhengzhou City, Henan Province Patentee after: Yutong Bus Co.,Ltd. Address before: No.1, Shibali Heyu Road, Guancheng Hui District, Zhengzhou City, Henan Province Patentee before: ZHENGZHOU YUTONG BUS Co.,Ltd. |