CN213383771U - Structure based on air suspension behind formula city passenger train bears entirely - Google Patents
Structure based on air suspension behind formula city passenger train bears entirely Download PDFInfo
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- CN213383771U CN213383771U CN202022474125.1U CN202022474125U CN213383771U CN 213383771 U CN213383771 U CN 213383771U CN 202022474125 U CN202022474125 U CN 202022474125U CN 213383771 U CN213383771 U CN 213383771U
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Abstract
The utility model discloses a structure based on bear formula city passenger train rear air suspension entirely, including rear suspension fixed arm assembly, gasbag assembly, rear axle housing, drag link assembly, the main part of rear suspension fixed arm assembly is frame construction, and the rear portion both ends of rear suspension fixed arm assembly upwards stretch out and form the gasbag bracket outwards the slope, the gasbag assembly includes left gasbag assembly and right gasbag assembly, and left gasbag assembly and right gasbag assembly are installed respectively on the gasbag bracket, and the rear axle housing is installed and is close to rear end position in rear suspension fixed arm assembly main part, and the drag link assembly sets up between left gasbag assembly and right gasbag assembly, and drag link assembly one end is connected with right gasbag assembly, and the other end is connected with left gasbag assembly. The utility model discloses make overall design structure compacter, simple and convenient, practical, meanwhile, bear formula automobile body air suspension structure's city passenger train entirely has also obtained higher manipulation performance and stability of traveling.
Description
Technical Field
The utility model belongs to the technical field of vehicle engineering, concretely relates to structure based on bear formula city bus back air suspension entirely.
Background
With the brisk development of the Chinese passenger car industry, the pure electric city passenger car is also a main vehicle in each city at present as a vehicle model which is widely popularized and used by the nation, and the national and various local relevant standards have specific detailed parameter requirements on the step height, the height of the floor in the car, the channel width, the seat number of passengers and the like, and the realization of the specific requirements is mainly closely related to the arrangement design structure of the front suspension of the pure electric city passenger car. As a city bus, the design method is important for increasing more riding comfort of the pure electric city bus by reasonably arranging the positions of an air bag, an air bag support, a shock absorber, a guide mechanism and a related support structure except that the city bus meets the specific detailed parameter requirements of the national and all local relevant standards on the step height, the height of a floor in the bus, the width of a channel, the seat number of passengers and the like.
Equipping an air suspension is a key technology to solve the above problems. At present, the overall design structure of a rear air suspension commonly used for pure electric city buses with a full-load type vehicle body structure is as shown in fig. 3 and 4, the rear air suspension assembly mainly comprises a rear axle housing, a left side C-shaped arm, a right side C-shaped arm, an air bag assembly, a shock absorber assembly, a stabilizer bar, a thrust rod and the like, a lower cover plate is arranged in the middle of the left side C-shaped arm and the right side C-shaped arm, upper cover plates are arranged at two ends of the rear axle housing, then the upper cover plate, the rear axle housing, the left side C-shaped arm (the right side C-shaped arm) and the lower cover plate are connected by adopting fixing bolts, the air bag assembly is respectively arranged at two ends of the left side C-shaped arm and the right side C-shaped arm, the shock absorber assembly is arranged at one side of an air bag, the stabilizer bar is connected between the left side C-shaped arm and the right side C-shaped, 6 point type air suspension assemblies are constituteed to above-mentioned structure, it is many to have spare part, the connected mode is complicated, the higher shortcoming of material cost and processing cost, the whole car installation is big with the maintenance degree of difficulty, and because the tie point is more, it is difficult to guarantee to connect the quality, in the driving process, the probability increase that not hard up appears in connecting bolt, increase the potential safety hazard, in addition, because the structural feature of this air suspension assembly, the air suspension assembly is installed at the middle part of rear suspension section assembly frame, cause the vehicle center of gravity far away from drive power, reduce drive efficiency.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the structure is applicable to the city passenger train of the formula automobile body air suspension structure of bearing entirely. Based on the characteristics of the air suspension structure's city passenger train, through the global design and the assembly structure of adjustment back air suspension assembly, both satisfied bearing formula city passenger train global design's structure demand entirely, satisfy the abominable condition of long-term overload operation again, guarantee the convenience of whole car installation, maintenance simultaneously, practice thrift manufacturing cost.
The utility model discloses a technical scheme be, a structure based on bear formula city passenger train rear air suspension entirely, include: rear suspension fixed arm assembly, gasbag assembly, rear axle housing, drag link assembly, the main part of rear suspension fixed arm assembly is frame construction, and the rear portion both ends of rear suspension fixed arm assembly tilt outwards upwards to stretch out and form the gasbag bracket, the gasbag assembly includes left gasbag assembly and right gasbag assembly, and left gasbag assembly and right gasbag assembly are installed respectively on the gasbag bracket, the rear axle housing is installed and is close to rear end position at rear suspension fixed arm assembly main part, the drag link assembly sets up between left gasbag assembly and right gasbag assembly, and drag link assembly one end is passed through vehicle frame connecting bolt and is connected with right gasbag assembly, and the other end is connected with left gasbag assembly through the pivot.
The rear suspension fixed arm assembly further comprises two limiting blocks, and the top ends of the two limiting blocks are respectively installed on the frame, located on one side of the rear axle housing, of the rear end of the rear suspension fixed arm assembly main body through bolts; so as to reduce the roll angle of the whole vehicle.
Furthermore, the top flange assembly is arranged at the front end of the rear suspension fixing arm assembly and is positioned at the central axis of the rear suspension fixing arm assembly, and the top end of the top flange assembly is connected with the frame through a frame connecting bolt.
Furthermore, left side gasbag assembly and right gasbag assembly structure are the same, including gasbag support and gasbag, and gasbag support fixed mounting is on the gasbag bracket, and the gasbag bottom is connected with the gasbag support, and the gasbag top is connected with the frame bottom surface through frame connecting bolt.
Furthermore, a shock absorber support is connected to the air bag support, a shock absorber is connected to the shock absorber support, and the shock absorber is located on the outer side of the air bag.
Further, rear axle housing both ends are respectively through axle housing clamp plate and U-shaped bolt and rear suspension fixed arm assembly fixed connection, the axle housing clamp plate sets up in rear axle housing top, and the U-shaped bolt opening upwards passes rear suspension fixed arm assembly rear and axle housing clamp plate fixed connection.
Furthermore, the rear suspension fixed arm assembly is provided with inclined base plates on two sides of the rear axle housing respectively, U-shaped bolts penetrate through the inclined base plates to fix the inclined base plates between the axle housing pressing plate and the rear suspension fixed arm assembly, one end face of each inclined base plate is connected with the rear suspension fixed arm assembly, and the other end face of each inclined base plate is connected with the rear axle housing.
Compared with the prior art, the beneficial effects of the utility model are that:
1) the structure of the utility model optimizes and adjusts the whole design idea and the whole structure design on the basis of the structure of the rear air suspension base which is commonly used at present, so that the whole design structure is more compact, simpler and more convenient and more practical, and meanwhile, the city bus with the full-bearing type vehicle body air suspension structure also obtains higher operation performance and running stability;
2) simple and reasonable structure and high integration level
The utility model adopts the frame-type rear suspension fixed arm as the integral structural support, the air bag assembly and the shock absorber assembly are arranged at the rear end of the rear suspension fixed arm assembly, and the rear axle housing is close to the rear end, the thrust rod and the stabilizer bar are cancelled, the front, middle and rear loads are distributed reasonably, the load ratio is 3:3:4, the device structure is compact integrally, and the convenience and the rapidness of component installation and disassembly are met;
3) high operation performance and good safety
The rear axle housing and the air bag assembly are arranged at the rear end of the rear suspension fixed arm assembly, the vertex flange assembly is arranged at the front end and is a key position point of the frame connected with the rear suspension assembly, torsion resistance and push-pull resistance are achieved, the rear air suspension assembly forms a three-point structure, the position of the air bag is raised, driving force acts near the gravity center point of the vehicle, driving efficiency is improved by 5% compared with that of a 6-point type air suspension in the prior art, operation type and stability are obviously improved, and a limiting block is arranged to reduce the side inclination angle of the whole vehicle and ensure the driving safety of the whole vehicle;
3) high structural strength
The utility model simplifies the structure, reduces the number of parts and bolt connection, the rear axle housing and the rear suspension fixing arm are connected by the axle housing pressing plate and the U-shaped bolt, the number of the upper cover plate, the lower cover plate and the bolt is reduced, the connection stability is enhanced, and the lightweight level of the whole vehicle is improved;
4) reduce the manufacturing cost and facilitate the maintenance
The thrust rod, the stabilizer bar, the lower cover plate and the upper cover plate top fitting are optimized, the material cost is reduced, the assembly process is simplified, the manufacturing cost is reduced, and meanwhile, the structure is simplified, so that later maintenance is more convenient and quicker.
Drawings
FIG. 1 is a schematic view of the rear air suspension assembly of the present invention;
FIG. 2 is a structural view of the assembly of the rear air suspension assembly and the rear suspension section frame assembly of the present invention;
FIG. 3 is a block diagram of the overall design of a conventional rear air suspension assembly;
FIG. 4 is a schematic diagram of a conventional rear air suspension assembly and rear suspension section frame assembly.
Detailed Description
The invention will be further explained with reference to the drawings attached to the specification in order to facilitate better understanding by those skilled in the art.
Referring to fig. 1-2, a structure based on a full-load type rear air suspension of a city bus comprises: the rear suspension fixed arm assembly 1, the airbag assembly 2, the shock absorber assembly 3, the rear axle housing 4, the tie rod assembly 5, the limiting block 6 and the vertex flange assembly 7.
The main body of the rear suspension fixed arm assembly 1 is of a frame structure, and the frame structure is integrally formed, so that the structural stability of the whole device is enhanced. Two ends of the rear part of the rear suspension fixed arm assembly 1, namely the rear ends of two cross beams of a frame of the rear suspension fixed arm assembly 1, extend outwards and obliquely upwards to form an air bag bracket 11 for mounting the air bag assembly 2.
The airbag assembly 2 comprises a left airbag assembly 21 and a right airbag assembly 22, the left airbag assembly 21 and the right airbag assembly 22 are identical in structure and comprise airbag supports 210 and airbags 211, the airbag supports 210 are respectively and fixedly installed on the two airbag brackets 11, the bottom ends of the airbags 211 are connected with the airbag supports 210, and the top ends of the airbags 22 are connected with the bottom surface of the frame through frame connecting bolts; and the airbag bracket 210 is connected with the damper bracket 31, the damper bracket 31 is connected with the damper 3, and the damper 3 is positioned outside the airbag 211. This design is raised gasbag 211 mounting height through gasbag bracket 11, and whole car operation type and stability obviously improve.
Rear axle housing 4 installs and hangs fixed arm assembly 1 main part in the back and be close to rear end position, and rear axle housing 4 both ends are respectively through axle housing clamp plate 41 and U-shaped bolt 42 and the fixed arm assembly 1 fixed connection of back suspension, axle housing clamp plate 41 sets up 4 tops of rear axle housing, and U-shaped bolt 42 opening upwards passes behind the fixed arm assembly of back suspension 1 with axle housing clamp plate 41 fixed connection. The axle housing pressing plate 41 and the U-shaped bolt 42 are directly adopted to fix the rear axle housing 4 and the rear suspension fixing arm assembly 1, connecting parts are reduced, the connecting mode is simplified, and the installation and the disassembly are convenient.
Further, it still is equipped with the backing plate 43 respectively to lie in 4 both sides of rear axle housing on the fixed arm assembly 1 of rear suspension for rear axle housing 4 is connected closely with rear suspension fixed arm assembly 1 and is laminated, U-shaped bolt 42 runs through backing plate 43 and fixes it between axle housing clamp plate 41 and rear suspension fixed arm assembly 1, a backing plate 43 terminal surface is connected with rear suspension fixed arm assembly, another terminal surface is connected with the rear axle housing, the backing plate is fixed to its centre gripping from 4 both sides of rear axle housing, avoid rear axle housing 4 to take place the skew at the vehicle in-process of traveling, guarantee structural stability and driving safety nature.
The limiting blocks 6 are two, the top ends of the limiting blocks are respectively mounted on a frame located on one side of the rear axle housing 4 at the rear end of the main body of the rear suspension fixed arm assembly 1 through bolts, and the bottom ends of the limiting blocks are suspended in the air so as to reduce the side inclination angle of the whole vehicle and ensure the driving safety of the stubble.
The vertex flange assembly 7 is arranged at the front end of the rear suspension fixing arm assembly 1 and is positioned on the central axis of the rear suspension fixing arm assembly 1, and the top end of the vertex flange assembly 7 is connected with the frame through a frame connecting bolt, is a key position point of the frame connecting rear suspension assembly, and plays roles of torsion resistance and push-pull resistance.
The rear air suspension assembly formed by the structure is of a three-point structure, when the rear air suspension assembly is installed, the gravity center is deviated to the rear part of a vehicle frame, driving force acts near the gravity center point of a vehicle, the driving efficiency is improved by 5% compared with a 6-point air suspension in the prior art, the operating performance is obviously improved, the front load, the middle load and the rear load are distributed reasonably, the load ratio is 3:3:4, and the safety and reliability of the vehicle in the form are improved.
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention and do not limit the scope of the present invention. Without departing from the spirit and principles of the present invention, various modifications and improvements of the technical solution of the present invention will be considered by those skilled in the art within the scope of the present invention as defined in the appended claims.
Claims (7)
1. The utility model provides a structure based on air suspension behind full formula of bearing city passenger train which characterized in that includes: a rear suspension fixed arm assembly (1), an air bag assembly (2), a rear axle housing (4) and a tie rod assembly (5), the main body of the rear suspension fixed arm assembly (1) is of a frame structure, two ends of the rear part of the rear suspension fixed arm assembly (1) are inclined outwards and extend upwards to form an air bag bracket (11), the air bag assembly (2) comprises a left air bag assembly (21) and a right air bag assembly (22), the left air bag assembly (21) and the right air bag assembly (22) are respectively arranged on the air bag bracket (11), the rear axle housing (4) is arranged at the position close to the rear end of the main body of the rear suspension fixed arm assembly (1), the tie rod assembly (5) is arranged between the left air bag assembly (21) and the right air bag assembly (22), one end of the tie rod assembly (5) is connected with the right air bag assembly (22) through a frame connecting bolt, and the other end of the tie rod assembly is connected with the left air bag assembly (21) through a rotating shaft.
2. The structure based on air suspension behind full formula of bearing city passenger train of claim 1, characterized in that: it still includes stopper (6), stopper (6) are equipped with two, and the top adopts the bolt installation respectively to hang fixed arm assembly (1) main part rear end behind and is located the frame of rear axle housing (4) one side.
3. The structure based on air suspension behind full formula of bearing city passenger train of claim 1, characterized in that: the top flange assembly (7) is arranged at the front end of the rear suspension fixing arm assembly (1) and is positioned on a central axis of the rear suspension fixing arm assembly (1), and the top end of the top flange assembly (7) is connected with a frame through a frame connecting bolt.
4. The structure based on air suspension behind full formula of bearing city passenger train of claim 1, characterized in that: left side gasbag assembly (21) and right gasbag assembly (22) structure is the same, including gasbag support (210) and gasbag (211), gasbag support (210) fixed mounting is on gasbag bracket (11), and gasbag (211) bottom is connected with gasbag support (210), and gasbag (211) top is connected with the frame bottom surface through frame connecting bolt.
5. The structure based on air suspension behind full formula of bearing city passenger train of claim 4, characterized in that: the air bag support (210) is connected with the shock absorber support (31), the shock absorber support (31) is connected with the shock absorber (3), and the shock absorber (3) is located on the outer side of the air bag (211).
6. The structure based on air suspension behind full formula of bearing city passenger train of claim 1, characterized in that: rear axle housing (4) both ends are respectively through axle housing clamp plate (41) and U-shaped bolt (42) and rear suspension fixed arm assembly (1) fixed connection, axle housing clamp plate (41) set up in rear axle housing (4) top, and U-shaped bolt (42) opening makes progress, passes rear suspension fixed arm assembly (1) back and axle housing clamp plate (41) fixed connection.
7. The structure based on air suspension behind full formula of bearing city passenger train of claim 6, characterized in that: the rear suspension fixed arm assembly (1) is provided with oblique base plates (43) on two sides of a rear axle housing (4), U-shaped bolts (42) penetrate through the oblique base plates (43) to be fixed between an axle housing pressing plate (41) and the rear suspension fixed arm assembly (1), one end face of each oblique base plate (43) is connected with the rear suspension fixed arm assembly (1), and the other end face of each oblique base plate is connected with the rear axle housing (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022474125.1U CN213383771U (en) | 2020-10-30 | 2020-10-30 | Structure based on air suspension behind formula city passenger train bears entirely |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022474125.1U CN213383771U (en) | 2020-10-30 | 2020-10-30 | Structure based on air suspension behind formula city passenger train bears entirely |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213383771U true CN213383771U (en) | 2021-06-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022474125.1U Active CN213383771U (en) | 2020-10-30 | 2020-10-30 | Structure based on air suspension behind formula city passenger train bears entirely |
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| Country | Link |
|---|---|
| CN (1) | CN213383771U (en) |
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2020
- 2020-10-30 CN CN202022474125.1U patent/CN213383771U/en active Active
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