CN219667910U - Air suspension system of intelligent large-scale bearing chassis - Google Patents

Abstract

The utility model provides an air suspension system of an intelligent large-scale bearing chassis, which is characterized in that: the air suspension system (2) is arranged at the rear wheel of the intelligent large-scale bearing chassis (1) and is used for connecting the body of the intelligent large-scale bearing chassis (1) with the tire component (6), and the air suspension system (2) comprises a cylinder component (3), a rotary swing arm component (4) and a follow-up support component (5). The utility model creatively adopts the air suspension system capable of solving the problem of unbalanced load of the air cylinder, successfully realizes the intelligent large-scale bearing chassis adopting the four-wheel structure, can simulate the high-speed motion characteristics of the vehicle on an actual road, has high motion reliability and stability, can improve the fidelity and the test repeatability of a test scene, has low cost, high precision, good consistency and strong pavement adaptability, and is easy to maintain and transition during the test.

Description

Air suspension system of intelligent large-scale bearing chassis

Technical Field

The utility model relates to the technical field of active safety of automobiles, in particular to an air suspension system of an intelligent large-scale bearing chassis.

Background

In recent years, the industry increasingly pays attention to vehicle automatic driving technology aiming at the sequential release of test regulations of intelligent driving of vehicles, and the requirements on test scenes, test regulations and passing conditions of the automatic driving technology are increasingly severe. In the testing process of intelligent network-connected automobiles in China, the intelligent large-scale bearing chassis is key equipment necessary for constructing complex testing scenes in intelligent driving testing, has a high-precision high-speed motion control function, and can realize the authenticity of field testing through self-defined track motion. One of the key core technologies and difficulties is how to construct a suspension system with high stability and high strength in a limited space, so that the high-speed motion characteristics of a vehicle on an actual road can be simulated, and meanwhile, the high-speed motion characteristics have high motion precision and stability, and the fidelity and the test repeatability of a test scene are improved.

At present, related products in the field exist temporarily in China, the related products in the field abroad mainly adopt a three-wheel structural form because the problem of unbalanced load of the air cylinders caused by vertical arrangement of the air cylinders cannot be solved, and a customized suspension system and a customized motor are basically adopted for supporting and driving, so that the cost of the products is extremely high, the time for goods intake is long, the equipment is difficult to maintain after being damaged, monopoly markets are extremely easy to form, and the three-wheel three-wheeled pneumatic cylinder is difficult to adapt to actual application scenes of China roads. Therefore, there is a need for a low cost air suspension system for an intelligent large load-bearing chassis that achieves an adjustable ground clearance.

Disclosure of Invention

The utility model aims to utilize the existing cylinder in the market to set a machine body supporting device, solve the problem that the cylinder is damaged or can not be lifted due to unbalanced load under the four-wheel bearing chassis structure, and realize the functions that the wheels can extend out of the machine body during normal running, retract into the machine body when being rolled by weights exceeding a certain load limit, and the like; meanwhile, the adjustment of the ground clearance of the intelligent large-scale bearing chassis is realized by adjusting the air quantity of the air cylinder or the travel of the flat head screw, the road condition adaptability is strong, the manufacturing cost is low, and the test requirement of the actual road condition of the Chinese road is further met.

The technical scheme of the utility model provides an intelligent large-scale air suspension system for a bearing chassis, which is characterized in that: the device comprises a cylinder assembly, a rotary swing arm assembly and a follow-up support;

one end of the air cylinder assembly is fixedly connected with the intelligent large-scale bearing chassis machine body rib plate through a screw, and the other end of the air cylinder assembly is kept in contact with a bearing on the rotary swing arm assembly through a platform end of a flat head screw;

the rotary swing arm assembly is fixed on a machine body rib plate of the intelligent large-scale bearing chassis through a screw, the front end of the rotary swing arm assembly is kept in contact with the platform end of the flat head screw on the cylinder assembly through a bearing, and the side end of the rotary swing arm assembly is kept in contact with the supporting shaft on the follow-up supporting piece through a swing rod on the rotary swing arm assembly;

one end of the follow-up support piece is fixedly connected with the tire assembly through a screw, and the other end of the follow-up support piece is kept in contact with the swing rod on the rotary swing arm assembly through a support shaft on the follow-up support piece.

Further, the air cylinder assembly comprises an air cylinder and a flat head screw, wherein the air cylinder is provided with a first threaded hole and a second threaded hole;

the screw penetrates through the first threaded hole, so that the air cylinder is fixedly connected with the intelligent large-scale bearing chassis body rib plate;

the second threaded hole is used for fixing the flat head screw; the flat head screw is provided with a screw rod; one end of the flat head screw is fixedly connected with a second threaded hole on the air cylinder through a screw rod, and the end face of the flat head nut of the other flat head end is kept in contact with a bearing arranged on the transverse shaft on the rotary swing arm assembly.

Further, the rotary swing arm assembly comprises a rotary swing arm support, a support end cover, a rotary support, a transverse shaft, a bearing and a rotary shaft; the transverse shaft penetrates through the bearing and is assembled with the rotary support to form a whole, then the rotary shaft is assembled on the rotary swing arm support after being fixed with the rotary support, and the rotary swing arm assembly is fixedly connected with the intelligent large-scale bearing chassis body rib plate through the support end cover.

Further, the rotary swing arm support is fixedly arranged on the intelligent large-scale bearing chassis machine body rib plate through screw installation, and is used for assembling and supporting support end covers, the rotary support, the transverse shaft, the bearing, the swing rod, the gasket and the rotating shaft.

Further, a first arc-shaped groove, a third threaded hole, a first U-shaped through groove, a second U-shaped sinking groove and a fourth threaded hole are formed in the rotary swing arm support;

the first circular arc-shaped groove is matched with the support end cover through a bearing and supports and fixes the rotating shaft, so that the rotating motion of the rotating shaft is realized;

the third threaded hole is used for fixing the support end cover through a screw;

the first U-shaped through groove provides an installation space for the rotary support;

the second U-shaped sinking groove reserves a movement space for the rotary support;

and the fourth threaded hole enables the rotary swing arm support to be fixedly connected with the intelligent large-scale bearing chassis body rib plate through a screw.

Further, a first circular through hole and a second circular arc-shaped groove are formed in the support end cover;

the screw penetrates through the first circular through hole and is fixed with a third threaded hole on the rotary swing arm support, so that the support end cover is fixedly connected with the rotary swing arm support;

the second arc-shaped groove is matched with the arc-shaped groove on the rotary swing arm support and is used for fixedly mounting the bearing and the rotary shaft.

Further, the rotary support is provided with a half silkworm-shaped table, a second circular through hole, a fifth threaded hole, a U-shaped sinking groove, a sixth circular through hole, a sixth threaded hole and a U-shaped groove;

the semi-silkworm-shaped tables are arranged at two ends of the rotary support, and the second round through holes on the semi-silkworm-shaped tables are used for fixedly connecting the transverse shafts;

the fifth threaded holes are respectively arranged at the center of the top end of the half silkworm-shaped table and are used for preventing the left and right movement of the transverse shaft through mounting machine screws;

the U-shaped sinking groove is a reserved installation and movement space of a bearing assembled on the transverse shaft;

the U-shaped groove is a reserved installation space matched with the installation surface of the rotating shaft, the rotating support is fixedly connected with the rotating shaft through a sixth circular through hole and a sixth threaded hole on the rotating support, and the rotating support is driven to rotate through the rotating motion of the rotating shaft.

Further, a first square sinking groove is arranged on the transverse shaft and is symmetrically arranged at the shaft end of the transverse shaft in a left-right and up-down mode;

the bearing is arranged on the transverse shaft and is limited by a spacer bush arranged on the transverse shaft.

Further, a silkworm-shaped through hole is formed in the swing rod; the silkworm-shaped through holes on the swinging rods are used for fixedly connecting the swinging rods with the long end shafts of the rotating shafts and limiting when being stressed through the two straight side surfaces of the silkworm-shaped through holes.

Further, a short end shaft and a long end shaft are arranged on the rotating shaft;

the short end shaft is arranged in a first arc-shaped groove on the rotary swing arm support after being matched with the bearing, and is fixed through the support end cover;

one end of the long end shaft, which is close to the short end shaft, is matched with a bearing and then is arranged in a first arc-shaped groove on the rotary swing arm support and is fixed through a support end cover; and a second square sinking groove is symmetrically arranged at one end of the long end shaft, which is close to the end surface.

The beneficial effect of this scheme is:

(1) The utility model designs an air suspension system, which saves the height space through the transverse arrangement design of the air cylinders, and supports the suspension system during normal running, so that wheels are grounded, when the intelligent large-scale bearing chassis is rolled by a weight exceeding a certain weight, the air cylinders are compressed, the wheels are lifted off, the body of the intelligent large-scale bearing chassis contacts the ground, and the suspension and tire system components are protected.

(2) The utility model designs a double ground clearance adjusting system, which can realize the adjustable ground clearance of an intelligent large-scale bearing chassis by adjusting the air pressure of an air cylinder or a flat head screw, improves the overall trafficability of products and the pavement adaptability, and is easy to maintain and transition during testing.

(3) The cylinder used by the utility model has the advantages of high transmission efficiency, stable transmission, low noise, good consistency, no need of lubrication and maintenance and the like, and greatly reduces the manufacturing cost and the use cost of the product.

(4) According to the utility model, the cylinder assembly, the rotary swing arm assembly and the follow-up support are designed according to split contact, so that the problem of quick replacement of each assembly is solved, the testing efficiency is improved, and the maintenance cost is reduced.

(5) According to the utility model, the linear motion of the air cylinder is converted into rotary motion through the rotary swing arm assembly, and then the rotary motion is converted into the up-and-down arc motion of the tire assembly through the cooperation of the swing rod on the rotary swing arm assembly and the follow-up support piece, so that the key problem that the air cylinder is easy to damage or can not lift due to unbalanced load of the tire assembly when the air cylinder is vertically arranged is successfully solved.

(6) The utility model develops an adjustable air suspension system, which ensures the running stability of an intelligent large-scale bearing chassis through ingenious and simple arrangement design, and solves the problems of unbalanced load, high-precision high-speed movement shake fluctuation and difficult control with low cost.

Drawings

The advantages of the foregoing and/or additional aspects of the present utility model will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:

FIG. 1 is a schematic diagram of the overall assembly of an air suspension system for an intelligent large load-bearing chassis of the present utility model;

FIG. 2 is a schematic diagram of an air suspension system for an intelligent large load-bearing chassis according to the present utility model;

FIG. 3 is a schematic diagram of a cylinder configuration of an embodiment of the present utility model;

FIG. 4 is a schematic view of the construction of a grub screw according to one embodiment of the present utility model;

FIG. 5 is a schematic diagram of a rotary swing arm assembly according to an embodiment of the utility model;

FIG. 6 is a front view of a rotating swing arm mount structure of one embodiment of the present utility model;

FIG. 7 is a rear view of a swing arm mount structure according to one embodiment of the utility model;

FIG. 8 is a front view of a seat end cap structure of one embodiment of the present utility model;

FIG. 9 is a rear view of a seat end cap structure of one embodiment of the present utility model;

FIG. 10 is a front view of a swivel mount configuration of one embodiment of the utility model;

FIG. 11 is a rear view of a swivel mount configuration of one embodiment of the utility model;

FIG. 12 is a schematic diagram of a cross-axis structure of an embodiment of the utility model;

FIG. 13 is a schematic view of a bearing structure of an embodiment of the present utility model;

FIG. 14 is a schematic view of a pendulum rod configuration of one embodiment of the present utility model;

FIG. 15 is a schematic view of a gasket construction of an embodiment of the present utility model;

FIG. 16 is a front view of a rotating shaft structure of an embodiment of the present utility model;

FIG. 17 is a rear view of a rotating shaft structure of an embodiment of the present utility model;

FIG. 18 is a front view of a follower support structure of one embodiment of the utility model;

fig. 19 is a rear view of a follower support structure of one embodiment of the utility model.

Wherein: 1-an intelligent large-scale bearing chassis; 2-air suspension system; a 3-cylinder assembly; 301-cylinder; 30101-a first threaded hole; 30102-a second threaded hole; 302-flat head screw; 30201-a screw; 30202-a flat head nut; 04-rotating swing arm assembly; 401-rotating a swing arm support; 40101-a first circular arc recess; 40102-a third threaded bore; 40103-U-shaped through slot; 40104-U-shaped sink; 40105-a fourth threaded hole; 402-a pedestal end cap; 40201-a first circular through hole; 40202-second circular arc groove; 403-rotating the support; 40301-a half silkworm-shaped table; 40302-second circular through hole; 40303-fifth threaded hole; 40304-U-shaped sink; 40305-sixth circular through hole; 40306-sixth threaded bore; 40307-U-shaped groove; 404-horizontal axis; 40401-first square sink; 405-a bearing; 406-swinging rod; 40601-silkworm-shaped through holes; 407-washers; 40701-a third circular through hole; 408-a rotation axis; 40801-stub shaft; 40802-long end shaft; 4080201-second square sink; 4080202-threaded holes; 40803-square sink; 40804-fourth circular through holes; 05-a follower support; 501-a fixed plate; 502-a support shaft; 50201-round bench; 50202-circular axis; 503-countersunk through holes; 504-fifth circular through holes; 06-tire assembly.

Detailed Description

In order that the above-recited objects, features and advantages of the present utility model will be more clearly understood, a more particular description of the utility model will be rendered by reference to the appended drawings and appended detailed description. It should be noted that, without conflict, embodiments of the present utility model and features in the embodiments may be combined with each other.

In the present utility model, terms such as "mounted," "connected," "fixed," "front-to-back," "left-to-right," "inside-to-outside," "up-to-down," and the like are to be construed broadly based on the device, and for example, "connected" may be a fixed connection, a detachable connection, or an integral connection; "coupled" may be directly coupled or indirectly coupled through intermediaries. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

As shown in fig. 1-2, this embodiment provides an air suspension system for an intelligent large load-bearing chassis. The air suspension system 2 is arranged at the rear wheel of the intelligent large-scale bearing chassis 1 and is used for connecting the body of the intelligent large-scale bearing chassis 1 with the tire component 6, the air suspension system 2 solves the problem that an air cylinder is damaged or can not lift due to unbalanced load under the air cylinder of a four-wheel bearing chassis structure, and the functions that the wheels can extend out of the body during normal running, retract into the body when being rolled by weights exceeding a certain load limit and the like are realized; meanwhile, the adjustment of the ground clearance of the intelligent large-scale bearing chassis is realized by adjusting the air quantity of the air cylinder or the travel of the flat head screw, so that the road condition adaptability is strong, the manufacturing cost is low, and the consistency is good;

the air suspension system 2 comprises a cylinder assembly 3, a rotary swing arm assembly 4 and a follow-up support 5;

one end of the air cylinder assembly 3 is fixedly connected with a machine body rib plate of the intelligent large-scale bearing chassis 1 through a screw, and the other end of the air cylinder assembly 3 is kept in contact with a bearing 405 on the rotary swing arm assembly 4 through a platform end of a flat head screw 302;

the rotary swing arm assembly 4 is fixed on a machine body rib plate of the intelligent large-scale bearing chassis 1 through a screw, the front end of the rotary swing arm assembly 4 is kept in contact with the platform end of the flat head screw 302 on the cylinder assembly 3 through a bearing 405, and the side end of the rotary swing arm assembly 4 is kept in contact with the supporting shaft 502 on the follow-up supporting piece 5 through a swing rod 406 on the rotary swing arm assembly 4;

one end of the follow-up support 5 is fixedly connected with the tire assembly 6 through a screw, and one end of the follow-up support 5 is kept in contact with the swing rod 406 on the rotary swing arm assembly 4 through a support shaft 502 on the follow-up support;

when the cylinder 301 on the cylinder assembly 3 is compressed or jacked in a linear motion, the bearing 405 on the rotary swing arm assembly 4 is driven to move through the platform end of the flat head screw 302 on the cylinder assembly 3, the bearing 405 on the rotary swing arm assembly 4 drives the swing rod 406 on the rotary swing arm assembly 4 to rotate, the swing rod 406 on the rotary swing arm assembly 4 drives the follow-up support 5 to move up and down through contact with the support shaft 502 on the follow-up support 5, so that the tire assembly 6 is driven to move in an up-down arc manner, the expansion and contraction of the tire are realized, meanwhile, the expansion stroke of the cylinder is accurately determined through adjusting the inflation pressure of the cylinder 301, the rotation stroke of the flat head screw 302 is adjusted, the landing height of the tire assembly 6 is further determined, and the adjustment of the ground clearance of the intelligent large-scale bearing chassis 1 is realized.

Fig. 3-4 are schematic structural views of a cylinder and grub screw according to one embodiment of the present utility model. The cylinder assembly 3 consists of a cylinder 301, a flat head screw 302 and the like;

the cylinder 301 is provided with a first screw hole 30101 and a second screw hole 30102; the first threaded hole 30101 is used for fixedly connecting with a body rib plate of the intelligent large-scale bearing chassis 1 through a screw by using an air cylinder 301; the second threaded hole 30102 is used for fixing a flat head screw in cooperation with a screw rod 30201 on the flat head screw 302, the air cylinder 301 is used for providing intelligent large-scale bearing chassis supporting force, and the air cylinder stroke can be changed by adjusting air pressure of the air cylinder 301;

the flat head screw 302 is a threaded rod with a flat head nut which is integrally processed and molded, the flat head screw 302 is provided with a screw rod 30201 and a flat head nut 30202; one end of the flat head screw 302 is fixedly connected with a second threaded hole 30102 on the air cylinder 301 through a screw rod 30201, and the other flat head end, namely the end surface of the flat head nut 30202, is kept in contact with a bearing 405 arranged on a transverse shaft 404 on the rotary swing arm assembly 4; besides the force transmission function, the flat head screw 302 can also adjust the ground clearance of the intelligent large-scale bearing chassis 1 by adjusting the assembly, namely the rotation stroke, of the flat head screw 302.

Fig. 5 is a schematic diagram of a rotary swing arm assembly according to an embodiment of the utility model. The rotary swing arm assembly 4 is formed by processing metal materials, and the rotary swing arm assembly 4 comprises a rotary swing arm support 401, a support end cover 402, a rotary support 403, a transverse shaft 404, a bearing 405, a swing rod 406, a gasket 407, a rotary shaft 408 and the like;

when the rotary swing arm assembly 4 is installed, firstly, the transverse shaft 404 passes through the bearing 405 and is assembled with the rotary support 403 into a whole, then, the rotary shaft 408 and the rotary support 403 are fixed and then are assembled on the rotary swing arm support 401, and are fixed through the support end cover 402, and finally, the rotary swing arm assembly 4 is fixedly connected with the body rib plate of the intelligent large-scale bearing chassis 1.

Fig. 6-7 are front and rear views of a swing arm mount structure according to one embodiment of the utility model. The rotary swing arm support 401 is fixedly arranged on a machine body rib plate of the intelligent large-scale bearing chassis 1 through screws, and the rotary swing arm support 401 is used for assembling and supporting a support end cover 402, a rotary support 403, a transverse shaft 404, a bearing 405, a swing rod 406, a gasket 407, a rotary shaft 408 and the like;

the rotary swing arm support 401 is provided with a first arc-shaped groove 40101, a third threaded hole 40102, a first U-shaped through groove 40103, a second U-shaped sinking groove 40104 and a fourth threaded hole 40105;

the first circular arc grooves 40101 are symmetrically arranged left and right, and the first circular arc grooves 40101 are matched with the support end cover 402 through bearings and are used for fixing the rotating shaft 408, so that the rotating motion of the rotating shaft 408 is realized;

the four third threaded holes 40102 are symmetrically arranged, and the third threaded holes 40102 are used for fixing the support end cover 402 through screws;

the first U-shaped through groove 40103 is a space for installing the rotary support 403, and enables the rotary support 403 to freely rotate within a certain range;

the second U-shaped sinking groove 40104 is used for reducing weight and reserving a movement space of the rotary support 403;

the fourth threaded hole 40105 enables the rotary swing arm support 401 to be fixedly connected with the intelligent large-scale bearing chassis 1 body rib plate through screws.

Fig. 8-9 are front and rear views of a seat end cap structure according to one embodiment of the present utility model. The support end cover 402 is provided with a first circular through hole 40201 and a second circular arc-shaped groove 40202;

the first circular through hole 40201 is used for fixing a screw through a third threaded hole 40102 on the rotary swing arm support 401, so that the support end cover 402 is fixedly connected with the rotary swing arm support 401;

the second circular arc groove 40202 is used in cooperation with the first circular arc groove 40101 on the rotary swing arm support 401, and is used for fixedly mounting the bearing and the rotary shaft 408.

Fig. 10-11 are front and rear views of a swivel mount structure according to one embodiment of the utility model. The rotary support 403 is formed by processing a metal material, and the rotary support 403 is provided with a half silkworm-shaped table 40301, a second circular through hole 40302, a fifth threaded hole 40303, a U-shaped sinking groove 40304, a sixth circular through hole 40305, a sixth threaded hole 40306 and a U-shaped groove 40307;

the half silkworm-shaped platforms 40301 are arranged at two ends of the rotary support 403, and the second round through holes 40302 on the half silkworm-shaped platforms 40301 are used for fixedly connecting the transverse shafts 404;

the two fifth threaded holes 40303 are respectively arranged at the center of the top end of the half silkworm-shaped table 40301, and the fifth threaded holes 40303 are used for preventing the left and right movement of the transverse shaft 404 by installing machine screws;

the U-shaped sinking groove 40304 is a reserved installation and movement space of a bearing 405 assembled on the transverse shaft 404;

the U-shaped groove 40307 is a reserved installation space matched with the installation surface of the rotating shaft 408, the rotating support 403 is fixedly connected with the rotating shaft 408 through a sixth circular through hole 40305 and a sixth threaded hole 40306 on the rotating support 403, and the rotating support 403 is driven to rotate through the rotating motion of the rotating shaft 408, so that the linear motion of the air cylinder 301 is converted into the rotating motion, and the expansion and contraction of the air suspension system 2 are realized.

As shown in fig. 12, the transverse shaft 404 is provided with a first square sink 40401; the number of the first square sinking grooves 40401 is 4, and the first square sinking grooves 40401 are symmetrically arranged at the shaft end of the transverse shaft 404 in a left-right up-down mode, and the first square sinking grooves 40401 are used for being matched with confidential screws arranged in the fifth threaded holes 40303 to prevent the transverse shaft 404 from moving left and right.

As shown in fig. 13, the bearing 405 is mounted on the transverse shaft 404, and the spacer bush mounted on the transverse shaft 404 is used for limiting, so as to avoid the movement of the bearing 405.

As shown in fig. 14, the swing rod 406 is provided with a silkworm-shaped through hole 40601; the silkworm-shaped through hole 40601 on the swing rod 406 is used for fixedly connecting the swing rod 406 with the long end shaft 40802 of the rotating shaft 408, and limiting when being stressed by two straight edge surfaces of the silkworm-shaped through hole 40601.

As shown in fig. 15, the washer 407 is provided with a third circular through hole 40701; the third circular through hole 40701 is used for allowing a screw to pass through to fixedly connect the washer 407 with the rotation shaft 408, thereby limiting the longitudinal freedom of the swing rod 406 and preventing the swing rod from falling out during movement.

Fig. 16-17 are front and rear views of a rotating shaft structure according to an embodiment of the present utility model. The rotating shaft 408 is a rod body integrally formed by metal materials, and the rotating shaft 408 is provided with a short end shaft 40801, a long end shaft 40802, a second square sink 4080201, a threaded hole 4080202, a square sink 40803 and a fourth circular through hole 40804;

the short end shaft 40801 is mounted in a first arc-shaped groove 40101 on the rotary swing arm support 401 after being matched with a bearing, and is fixed through the support end cover 402;

one end of the long end shaft 40802, which is close to the short end shaft 40801, is mounted in a first arc-shaped groove 40101 on the rotary swing arm support 401 after being matched with a bearing, and is fixed through the support end cover 402; the end face of the long end shaft 40802 is symmetrically arranged up and down and is provided with 2 second square sinking grooves 4080201 near one end of the end face, the end face of the long end shaft 40802 is symmetrically arranged up and down, and the second square sinking grooves 4080201 are used for being matched and connected with silkworm-shaped through holes 40601 on the swinging rod 406 to limit the rotation of the swinging rod 406 under force;

the end face of the long end shaft 40802 is further provided with a threaded hole 4080202, and the threaded hole 4080202 is used for installing the gasket 407 on the end face of the long end shaft 40802 and fixing the gasket by a screw;

the square sinking groove 40803 which is arranged in a vertically symmetrical way and is arranged in the middle of the rotating shaft 408 is used for being matched with the plane of the mounting surface of the rotating support 403 to limit the relative movement between the rotating support 403 and the rotating shaft 408 when the rotating support 403 is stressed;

the fourth circular through hole 40804 is used for allowing a screw to pass through, and fixedly connects the rotating shaft 408 with the rotating support 403.

Fig. 18-19 are front and rear views of a follower support structure of one embodiment of the utility model. The follow-up support 5 is integrally formed by metal materials (welding forming can be used for saving cost), and the follow-up support 5 is connected through the tire component 6, so that the adjustment of the ground clearance of the intelligent large-scale bearing chassis 1 is realized;

the follow-up support 5 is provided with a fixed plate 501, a support shaft 502, a round table 50201, a round shaft 50202, a countersunk through hole 503 and a fifth round through hole 504;

the fixing plate 501 is fixedly connected with the tire assembly 6 through a screw penetrating through the countersunk through hole 503, and a fifth round through hole 504 on the fixing plate 501 is used for reducing weight and avoiding a driving shaft on the tire assembly 6;

the supporting shaft 502 is integrally formed by milling two parts of the round table 50201 and the round shaft 50202, and the supporting shaft 502 can be fixedly connected with the fixing plate 501 through welding or integrally formed by integrally processing the fixing plate 501 and the supporting shaft 502.

The air suspension system 2 composed of the air cylinder assembly 3, the rotary swing arm assembly 4, the follow-up support 5 and the like successfully realizes that the air cylinder 301 is transversely arranged, the linear motion of the transversely arranged air cylinder 301 is converted into rotary motion through the rotary swing arm assembly 4, and then the rotary motion is converted into the up-and-down arc motion of the tire assembly 6 through the matching action of the swing rod 406 on the rotary swing arm assembly 4 and the follow-up support 5, so that the key problem that the air cylinder 301 is damaged due to the unbalanced load of the tire assembly 6 or cannot be lifted when the air cylinder 301 is vertically arranged is successfully solved, meanwhile, the height space is saved, the ground clearance of the intelligent large-scale bearing chassis 1 is adjustable through the telescopic or flat head screw 302 assembly rotary stroke amount of the air cylinder 301, and the telescopic motion of the whole tire assembly 6 are protected, and the tire assembly 6 and the whole air suspension system 2 are protected.

In the test process, the equipment of the air suspension system of the intelligent large-scale bearing chassis is provided with an adjustable ground clearance mechanism, can simulate the high-speed motion characteristics of vehicles on actual roads, has high motion precision and stability, can improve the fidelity of test scenes and the test repeatability, has low cost, high precision, good synchronism and strong pavement adaptability, and is easy to maintain and transfer during the test.

Although the utility model has been provided in detail with reference to the accompanying drawings, it is to be understood that these descriptions are merely illustrative and are not intended to limit the application of the utility model. The scope of the utility model is defined by the appended claims and may include various modifications, alterations and equivalents of the utility model without departing from the scope and spirit of the utility model.

Claims (10)

1. An air suspension system of large-scale bearing chassis of intelligence, its characterized in that: comprises a cylinder assembly (3), a rotary swing arm assembly (4) and a follow-up support (5);

one end of the air cylinder assembly (3) is fixedly connected with a machine body rib plate of the intelligent large-scale bearing chassis (1) through a screw, and the other end of the air cylinder assembly (3) is kept in contact with a bearing (405) on the rotary swing arm assembly (4) through a platform end of a flat head screw (302);

the rotary swing arm assembly (4) is fixed on a machine body rib plate of the intelligent large-scale bearing chassis (1) through a screw, the front end of the rotary swing arm assembly (4) is kept in contact with the platform end of the flat head screw (302) on the air cylinder assembly (3) through a bearing (405), and the side end of the rotary swing arm assembly (4) is kept in contact with the supporting shaft (502) on the follow-up supporting piece (5) through a swing rod (406) on the rotary swing arm assembly (4);

one end of the follow-up support (5) is fixedly connected with the tire component (6) through a screw, and one end of the follow-up support (5) is kept in contact with the swing rod (406) on the rotary swing arm component (4) through a support shaft (502) on the follow-up support.

2. The intelligent large load-bearing chassis air suspension system of claim 1 wherein: the method is characterized in that:

the cylinder assembly (3) comprises a cylinder (301), a flat head screw (302), a first threaded hole (30101) and a second threaded hole (30102) are formed in the cylinder (301);

the screw penetrates through the first threaded hole (30101) to enable the air cylinder (301) to be fixedly connected with a machine body rib plate of the intelligent large-scale bearing chassis (1);

the second threaded hole (30102) is used for fixing a flat head screw; the flat head screw (302) is provided with a screw rod (30201); one end of the flat head screw (302) is fixedly connected with a second threaded hole (30102) on the air cylinder (301) through a screw rod (30201), and the end face of the flat head nut (30202) of the other flat head end is kept in contact with a bearing (405) arranged on the transverse shaft (404) on the rotary swing arm assembly (4).

3. The intelligent large load-bearing chassis air suspension system of claim 1 wherein: the rotary swing arm assembly (4) comprises a rotary swing arm support (401), a support end cover (402), a rotary support (403), a transverse shaft (404), a bearing (405) and a rotary shaft (408); the transverse shaft (404) passes through the bearing (405) and is assembled with the rotary support (403) into a whole, then the rotary shaft (408) is assembled on the rotary swing arm support (401) after being fixed with the rotary support (403), and is fixed through the support end cover (402), and the rotary swing arm assembly (4) is fixedly connected with the body rib plate of the intelligent large-scale bearing chassis (1).

4. The intelligent large load-bearing chassis air suspension system of claim 1 wherein:

the intelligent large-scale bearing chassis (1) body rib plate is fixedly arranged on the rotary swing arm support (401) through screw installation, the rotary swing arm support (401) is used for assembling a support end cover (402), a rotary support (403), a transverse shaft (404), a bearing (405), a swing rod (406), a gasket (407) and a rotary shaft (408).

5. The intelligent large load-bearing chassis air suspension system of claim 4 wherein:

a first arc-shaped groove (40101), a third threaded hole (40102), a first U-shaped through groove (40103), a second U-shaped sinking groove (40104) and a fourth threaded hole (40105) are formed in the rotary swing arm support (401);

the first arc-shaped groove 40101 is matched with the support end cover 402 through a bearing and supports and fixes the rotary shaft 408, so that the rotary motion of the rotary shaft 408 is realized;

the third threaded hole (40102) is used for fixing the support end cover (402) through a screw;

the first U-shaped through groove (40103) provides an installation space for the rotary support (403);

the second U-shaped sinking groove (40104) reserves a movement space for the rotary support (403);

the fourth threaded hole (40105) enables the rotary swing arm support (401) to be fixedly connected with the machine body rib plate of the intelligent large-scale bearing chassis (1) through screws.

6. The intelligent large load-bearing chassis air suspension system of claim 1 wherein:

a first circular through hole (40201) and a second circular arc-shaped groove (40202) are formed in the support end cover (402);

the screw passes through the first round through hole (40201) and is fixed with a third threaded hole (40102) on the rotary swing arm support (401), so that the support end cover (402) is fixedly connected with the rotary swing arm support (401);

the second arc-shaped groove (40202) is matched with the first arc-shaped groove (40101) on the rotary swing arm support (401) for fixedly mounting the bearing and the rotary shaft (408).

7. The intelligent large load-bearing chassis air suspension system of claim 1 wherein:

a half silkworm-shaped table (40301), a second round through hole (40302), a fifth threaded hole (40303), a U-shaped sinking groove (40304), a sixth round through hole (40305), a sixth threaded hole (40306) and a U-shaped groove (40307) are arranged on the rotary support (403);

the half silkworm-shaped tables (40301) are arranged at two ends of the rotary support (403), and the second round through holes (40302) on the half silkworm-shaped tables (40301) are used for fixedly connecting the transverse shafts (404);

the two fifth threaded holes (40303) are respectively arranged at the top centers of the half silkworm-shaped tables (40301), and the fifth threaded holes (40303) are used for preventing the left and right movement of the transverse shaft (404) through mounting machine screws;

the U-shaped sinking groove (40304) is a reserved installation and movement space of a bearing (405) assembled on the transverse shaft (404);

the U-shaped groove (40307) is a reserved installation space matched with the installation surface of the rotating shaft (408), the rotating support (403) is fixedly connected with the rotating shaft (408) through a sixth circular through hole (40305) and a sixth threaded hole (40306) on the rotating support (403), and the rotating support (403) is driven to rotate through the rotating motion of the rotating shaft (408).

8. The intelligent large load-bearing chassis air suspension system of claim 7 wherein:

a first square sinking groove (40401) is arranged on the transverse shaft (404) and is symmetrically arranged at the shaft end of the transverse shaft (404) in a left-right up-down mode;

the bearing (405) is arranged on the transverse shaft (404) and is limited by a spacer bush arranged on the transverse shaft (404).

9. The intelligent large load-bearing chassis air suspension system of claim 7 wherein:

a silkworm-shaped through hole (40601) is arranged on the swing rod (406); the silkworm-shaped through holes (40601) on the swinging rods (406) are used for enabling the swinging rods (406) to be fixedly connected with the long end shafts (40802) of the rotating shafts (408) and limiting when the two straight edge surfaces of the silkworm-shaped through holes (40601) are stressed.

10. The intelligent large load-bearing chassis air suspension system of claim 7 wherein:

the rotary shaft (408) is provided with a short end shaft (40801) and a long end shaft (40802);

the short end shaft (40801) is arranged in a first arc-shaped groove (40101) on the rotary swing arm support (401) after being matched with a bearing, and is fixed through a support end cover (402); one end of the long end shaft (40802) close to the short end shaft (40801) is arranged in a first arc-shaped groove (40101) on the rotary swing arm support (401) after being matched with a bearing, and is fixed through a support end cover (402); the long end shaft (40802) is provided with a second square sinking groove (4080201) which is symmetrically arranged up and down near one end of the end surface.