CN110539601B - Combined type air suspension system of unmatched thrust rod - Google Patents
Combined type air suspension system of unmatched thrust rod Download PDFInfo
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- CN110539601B CN110539601B CN201910749206.7A CN201910749206A CN110539601B CN 110539601 B CN110539601 B CN 110539601B CN 201910749206 A CN201910749206 A CN 201910749206A CN 110539601 B CN110539601 B CN 110539601B
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- cross beam
- beam body
- frame
- guide arm
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G11/00—Resilient suspensions characterised by arrangement, location or kind of springs
- B60G11/32—Resilient suspensions characterised by arrangement, location or kind of springs having springs of different kinds
- B60G11/34—Resilient suspensions characterised by arrangement, location or kind of springs having springs of different kinds including leaf springs
- B60G11/46—Resilient suspensions characterised by arrangement, location or kind of springs having springs of different kinds including leaf springs and also fluid springs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G13/00—Resilient suspensions characterised by arrangement, location or type of vibration dampers
- B60G13/001—Arrangements for attachment of dampers
- B60G13/005—Arrangements for attachment of dampers characterised by the mounting on the axle or suspension arm of the damper unit
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
- B62D21/02—Understructures, i.e. chassis frame on which a vehicle body may be mounted comprising longitudinally or transversely arranged frame members
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
- B62D21/11—Understructures, i.e. chassis frame on which a vehicle body may be mounted with resilient means for suspension, e.g. of wheels or engine; sub-frames for mounting engine or suspensions
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
- B60G2202/10—Type of spring
- B60G2202/11—Leaf spring
- B60G2202/112—Leaf spring longitudinally arranged
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
- B60G2202/10—Type of spring
- B60G2202/15—Fluid spring
- B60G2202/152—Pneumatic spring
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
- B60G2204/10—Mounting of suspension elements
- B60G2204/12—Mounting of springs or dampers
- B60G2204/126—Mounting of pneumatic springs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
- B60G2204/10—Mounting of suspension elements
- B60G2204/12—Mounting of springs or dampers
- B60G2204/129—Damper mount on wheel suspension or knuckle
Abstract
The utility model provides a combined type air suspension system of mismatching distance rod, which comprises a vehicle rack, the axle, the guiding arm, the frame crossbeam, the one end of guiding arm is connected with the frame through the guiding arm support, the other end of guiding arm is connected with air spring through the air spring crossbeam, the tip of frame crossbeam is connected with the guiding arm support through the frame, the guiding arm is located the below of axle, both sides are provided with the upper cover plate respectively about the axle, the lower cover plate, U type bolt stridees across the upper cover plate in proper order, the lower cover plate, be connected with U type bolt bottom plate behind the guiding arm, the lower cover plate is connected with the shock absorber, lower cover plate both sides face symmetry is provided with two otic placodes, be provided with adjusting bolt on the otic placode, adjusting bolt supports on the guiding arm, the guiding arm. The design not only reduces the risk and cost of frame cracking, improves the vehicle trafficability, but also ensures the steering performance, reduces tire wear, and can avoid abrasion to the guide arm support.
Description
Technical Field
The invention relates to the technical field of automobile air suspensions, in particular to a composite air suspension system unmatched with a thrust rod, which is mainly suitable for reducing the frame cracking risk and cost and improving the vehicle trafficability.
Background
Compared with a steel plate spring suspension, the air suspension can effectively improve the driving smoothness of the vehicle, so that the vehicle can be safely and comfortably taken; when the load changes, the height of the vehicle body can be automatically adjusted and maintained unchanged; the vehicle provided with the air suspension has small vibration, so that the damage to the electric appliances, instruments, the vehicle body and other accessories of the chassis can be reduced, and the maintenance cost of the vehicle is reduced; the impact on roads is reduced, the road surface is protected, and the maintenance cost of the highway is reduced, so that the application of the highway is more and more common on automobiles.
The invention discloses a heavy-duty car air suspension which comprises a car frame, wherein guide arms connected with an axle through U-shaped bolts are respectively arranged below longitudinal beams on two sides of the car frame, one end of each guide arm on the two sides is in lap joint with a transverse supporting beam, air springs connected with the longitudinal beams on the two sides of the car frame are respectively arranged on the supporting beams, the other end of each guide arm is connected with the longitudinal beam of the car frame through a guide arm support, a limiting block is arranged above the axle, a shock absorber for connecting the axle with the car frame is arranged between each guide arm and the car frame, a transverse thrust rod with one end connected with the axle through a support is arranged above the axle, and the other end of each transverse thrust rod is fixed on the inner sides of the longitudinal beams on the two sides of the car frame. Although the invention solves the problems of poor dead weight and poor driving smoothness of the existing heavy-duty automobile adopting a plate spring suspension, the invention still has the following defects:
firstly, the axle is transversely positioned by the transverse thrust rod, the variety of parts is large, the transverse force is transmitted to the frame through the transverse thrust rod, the stress of the frame is uneven, the local stress of the frame is overlarge, and the risk of frame cracking exists; secondly, the shock absorber lower carriage is installed at the guide arm rear end, is located the frame afterbody, and ground clearance is little for the vehicle leaves the angle less, influences the trafficability characteristic of vehicle.
Disclosure of Invention
The invention aims to overcome the defects and problems of high frame cracking risk, high cost and poor vehicle trafficability in the prior art, and provides a composite air suspension system with unmatched thrust rods, which has low frame cracking risk, low cost and good vehicle trafficability.
In order to achieve the above purpose, the technical solution of the invention is as follows: a composite air suspension system not matched with a thrust rod comprises a vehicle frame, an axle and a guide arm, wherein one end of the guide arm is connected with the vehicle frame through a guide arm bracket, the other end of the guide arm is connected with one end of an air spring through an air spring cross beam, the other end of the air spring is connected with the vehicle frame, and the middle part of the guide arm is connected with the axle through a U-shaped bolt;
the combined type air suspension system further comprises a frame cross beam, the end part of the frame cross beam is connected with a guide arm support through a frame, the guide arm is located below the axle, a U-shaped bolt bottom plate is arranged below the guide arm, a lower cover plate is arranged between the guide arm and the axle, an upper cover plate is arranged above the axle, the U-shaped bolt sequentially crosses over the upper cover plate, the lower cover plate and the guide arm and then is connected with the U-shaped bolt bottom plate, the lower cover plate is connected with one end of the shock absorber, and the other end of the shock absorber is connected with the frame through a shock absorber support.
The bottom plate includes riser, No. two risers of bottom plate and upper end symmetry setting, the U type groove that bottom plate and riser, No. two risers constitute is used for arranging the axle, and the middle part of bottom plate is provided with the bolt hole that is connected with the guiding arm, be provided with the bracing between the side that No. two risers were kept away from to a riser and the bottom plate, the side symmetry that No. two risers were kept away from to No. two risers is provided with diaphragm, No. two diaphragms, diaphragm, No. one, No. two diaphragms all are connected with the bottom plate, are provided with the reinforcing plate between diaphragm and No. two diaphragms, are provided with the through hole that is connected with the shock absorber on diaphragm, No. two diaphragms.
A first lug plate and a second lug plate are symmetrically arranged on two side faces of the base plate, second bolt holes are formed in the first lug plate and the second lug plate, adjusting bolts are arranged in the second bolt holes, and the adjusting bolts abut against the guide arms.
And a large gasket is arranged at the joint of the guide arm and the guide arm bracket.
The upper cover plate comprises a top plate and a third vertical plate and a fourth vertical plate which are symmetrically arranged at the lower ends of the top plate, the top plate and an inverted U-shaped groove formed by the third vertical plate and the fourth vertical plate are used for arranging an axle, and the upper end of the top plate is symmetrically provided with mounting grooves used for arranging U-shaped bolts.
The utility model discloses a guide arm support, including the backup pad, No. two backup pads that mounting panel and symmetry set up, the one end of a backup pad is connected with the mounting panel, and the other end of a backup pad is provided with a pair of flange, the one end of No. two backup pads is connected with the mounting panel, and the other end of No. two backup pads is provided with a pair of flange No. two, from the top down has set gradually No. three diaphragms, No. four diaphragms between a backup pad and No. two backup pads, and the one end of No. three diaphragms is connected with the mounting panel, and the other end of No. three diaphragms is connected with the middle part of No. four diaphragms through No. five risers, be provided with No. six risers that are connected with No. four diaphragm tip between a flange and No. two flanges, the end connection of No. one flange, No. two flanges has the boss, is provided with No. two through holes that, The mounting plate is provided with a groove at the position between the first support plate and the second support plate.
The frame cross beam comprises a cross beam body and a connecting plate connected with the two ends of the cross beam body, the cross beam body is of a hollow structure, the cross section of the cross beam body is of a rectangular structure, a plurality of second connecting holes connected with the frame and the guide arm support are formed in the periphery of the connecting plate, and a through hole communicated with the inner cavity of the cross beam body is formed in the middle of the connecting plate.
The cross beam body comprises a first cross beam body and a second cross beam body and a third cross beam body which are symmetrically arranged at two ends of the first cross beam body, the cross sectional area of the first cross beam body is equal from the second cross beam body to the third cross beam body, one end of the second cross beam body and one end of the third cross beam body are connected with a connecting plate, the other end of the second cross beam body and the other end of the third cross beam body are connected with the first cross beam body, and the cross sectional areas of the second cross beam body and the third cross beam body are sequentially increased from the first cross beam body to the connecting plate.
The air spring comprises a guide arm and is characterized in that the guide arm comprises a first leaf spring and a second leaf spring which are sequentially arranged from top to bottom, the first leaf spring comprises a first horizontal section, one end of the first horizontal section is provided with a rolling lug connected with the guide arm support, a bushing is sleeved in the rolling lug, the other end of the first horizontal section is provided with a first mounting hole connected with a lower cover plate, the second leaf spring comprises a second horizontal section, one end of the second horizontal section is provided with a wrapping lug wrapping the rolling lug, the middle of the second horizontal section is provided with a second mounting hole connected with one end, far away from the rolling lug, of the first horizontal section, and the other end of the second horizontal section is provided with a third mounting hole connected with an air spring beam.
A limiting block is arranged right above the upper cover plate and connected with the frame through a limiting block support.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the composite air suspension system with the unmatched thrust rods, the end part of the frame cross beam is connected with the guide arm support through the frame, the axle is transversely positioned by virtue of the guide arm support, the guide arm and the frame cross beam, the variety of parts is reduced, transverse force is uniformly transmitted to the frame through the guide arm support and the frame cross beam, and the risk that the frame is locally stressed and cracked due to nonuniform stress of the frame is avoided; the U-shaped bolt sequentially crosses the upper cover plate, the lower cover plate and the guide arm and then is connected with the U-shaped bolt bottom plate, the lower cover plate is connected with one end of the shock absorber, the other end of the shock absorber is connected with the frame through the shock absorber support, the shock absorber is arranged above the guide arm, ground clearance is increased, and the problem that the vehicle trafficability is poor in the prior art is effectively solved. Therefore, the invention reduces the cracking risk of the frame, reduces the cost and improves the vehicle trafficability.
2. The lower cover plate in the composite air suspension system comprises a bottom plate and a first vertical plate and a second vertical plate which are symmetrically arranged at the upper end of the bottom plate, wherein a U-shaped groove formed by the bottom plate, the first vertical plate and the second vertical plate is used for arranging an axle; the upper cover plate comprises a top plate, a third vertical plate and a fourth vertical plate, wherein the third vertical plate and the fourth vertical plate are symmetrically arranged at the lower end of the top plate; the first lug plate and the second lug plate are symmetrically arranged on two side faces of the bottom plate, second bolt holes are formed in the first lug plate and the second lug plate, adjusting bolts are arranged in the second bolt holes and abut against the guide arms, and the parallelism between the guide arms and the frame is guaranteed through the adjusting bolts, so that transverse force can be uniformly distributed on longitudinal beams on two sides of the frame, the steering performance is guaranteed, and tire abrasion is reduced; the joint of guide arm and guide arm support is provided with big gasket, adds big gasket, can effectively spacing and transmission transverse force, can avoid again causing wearing and tearing to the guide arm support. Therefore, the steering device has the advantages of high structural strength, simplicity and convenience in installation, high reliability in connection between the axle and the guide arm, small risk of frame cracking, guaranteed steering performance, reduced tire abrasion and avoidance of abrasion to the guide arm support.
3. The invention relates to a composite air suspension system without matching a thrust rod, wherein the end part of a first support plate is provided with a pair of first flanges, the end part of a second support plate is provided with a pair of second flanges, a third transverse plate and a fourth transverse plate are sequentially arranged between the first support plate and the second support plate from top to bottom, one end of the third transverse plate is connected with a mounting plate, the other end of the third transverse plate is connected with the middle part of the fourth transverse plate through a fifth vertical plate, a sixth vertical plate connected with the end part of the fourth transverse plate is arranged between the first flange and the second flange, the end parts of the first flange and the second flange are connected with a boss, the boss is provided with a second through hole connected with a guide arm, the mounting plate is provided with a plurality of first connecting holes connected with a frame and a frame cross beam, the mounting plate is provided with a groove, and the guide arm bracket with the, and light weight and simple installation. Therefore, the invention has high structural strength, light weight and simple and convenient installation.
4. The cross beam body in the composite air suspension system mismatched with the thrust rod is of a hollow structure, the cross section of the cross beam body is of a rectangular structure, the cross beam body comprises a first cross beam body, a second cross beam body and a third cross beam body, the two ends of the first cross beam body are symmetrically arranged, the cross section area of the first cross beam body is equal from the second cross beam body to the third cross beam body, the cross section areas of the second cross beam body and the third cross beam body are sequentially increased from the first cross beam body to the connecting plate, and the frame cross beam of the structure not only enables the two sides of a frame to be uniformly stressed, but also reduces the dead weight on the premise of ensuring the structural strength requirement. Therefore, the invention not only reduces the risk of frame cracking, but also improves the strength of the frame cross beam and reduces the self weight of the frame cross beam.
5. The guide arm in the composite air suspension system mismatched with the thrust rod comprises a first leaf spring and a second leaf spring which are sequentially arranged from top to bottom, wherein the first leaf spring comprises a first horizontal section and a rolling lug, and the second leaf spring comprises a second horizontal section and a wrapping lug. Therefore, the guide arm has simple structure, low manufacturing cost and light weight.
6. According to the composite air suspension system unmatched with the thrust rod, the limit block is connected with the frame through the limit block bracket, the limit block limits the upward jumping height of the axle, and the axle and the frame are prevented from being collided and damaged; the limiting block is arranged right above the upper cover plate, so that the axle is well protected. Therefore, the invention not only can prevent the collision damage of the axle and the frame, but also can well protect the axle.
Drawings
Fig. 1 is a schematic structural view of the present invention.
FIG. 2 is a schematic view of the connection between the cross member of the vehicle frame and the bracket of the guide arm according to the present invention.
Fig. 3 is a schematic view of the installation structure of the large gasket of the present invention.
Fig. 4 is a schematic view of the installation structure of the lower cover plate in the present invention.
FIG. 5 is a schematic view of the lower cover plate being screwed into the adjusting bolt in the present invention.
FIG. 6 is a schematic view showing the connection structure of the guide arm, the guide arm support and the lower cover plate according to the present invention.
Fig. 7 is a schematic view of a side of the guide arm bracket of fig. 6.
Fig. 8 is a schematic view of the other side of the guide arm bracket of fig. 6.
Fig. 9 is a schematic view of the structure of the guide arm of fig. 6.
Fig. 10 is a perspective view of the lower cover plate of fig. 6.
Fig. 11 is a front view of the lower cover plate of fig. 6.
Fig. 12 is a schematic structural view of the first ear plate and the second ear plate in fig. 10.
FIG. 13 is a schematic view of the connection between the cross member and the frame of the present invention.
Fig. 14 is a perspective view of the cross member of the frame of fig. 13.
Fig. 15 is a side view of the frame rail of fig. 13.
In the figure: the suspension device comprises a frame 1, an axle 2, a guide arm 3, a first leaf spring 31, a first horizontal section 311, a rolling lug 312, a bushing 313, a second leaf spring 32, a second horizontal section 321, a wrapping lug 322, a third mounting hole 323, a guide arm support 4, a mounting plate 41, a first support plate 42, a second support plate 43, a first flange 44, a second flange 45, a boss 46, a second through hole 47, a first connecting hole 48, a groove 49, an air spring cross beam 5, an air spring 6, a U-shaped bolt 7, a frame cross beam 8, a cross beam body 81, a first cross beam body 811, a second cross beam body 812, a third cross beam body 813, a connecting plate 82, a second connecting hole 83, a through hole 84, an upper cover plate 9, a lower cover plate 10, a bottom plate 101, a first vertical plate 102, a second vertical plate 103, a first bolt hole 104, an inclined strut 105, a first transverse plate 106, a second transverse plate 107, a reinforcing plate 108, a first through hole 109, a first lug, The shock absorber comprises a second lug plate 111, a second bolt hole 112, an adjusting bolt 113, a U-shaped bolt bottom plate 11, a shock absorber 12, a shock absorber support 13, a large gasket 14, a limiting block 15 and a limiting block support 16.
Detailed Description
The present invention will be described in further detail with reference to the following description and embodiments in conjunction with the accompanying drawings.
Referring to fig. 1 to 15, a composite air suspension system without matching with a thrust rod comprises a vehicle frame 1, an axle 2 and a guide arm 3, wherein one end of the guide arm 3 is connected with the vehicle frame 1 through a guide arm bracket 4, the other end of the guide arm 3 is connected with one end of an air spring 6 through an air spring cross beam 5, the other end of the air spring 6 is connected with the vehicle frame 1, and the middle part of the guide arm 3 is connected with the axle 2 through a U-shaped bolt 7;
the combined type air suspension system further comprises a frame cross beam 8, the end portion of the frame cross beam 8 is connected with a guide arm support 4 through a frame 1, the guide arm 3 is located below the axle 2, a U-shaped bolt bottom plate 11 is arranged below the guide arm 3, a lower cover plate 10 is arranged between the guide arm 3 and the axle 2, an upper cover plate 9 is arranged above the axle 2, the U-shaped bolt 7 sequentially crosses over the upper cover plate 9, the lower cover plate 10 and the guide arm 3 and then is connected with the U-shaped bolt bottom plate 11, the lower cover plate 10 is connected with one end of a shock absorber 12, and the other end of the shock absorber 12 is connected with the frame 1 through a shock absorber support 13.
The lower cover plate 10 comprises a bottom plate 101 and a first vertical plate 102 and a second vertical plate 103 which are symmetrically arranged at the upper end of the bottom plate 101, a U-shaped groove formed by the bottom plate 101 and the first vertical plate 102 and the second vertical plate 103 is used for arranging the axle 2, a bolt hole 104 connected with the guide arm 3 is arranged in the middle of the bottom plate 101, an inclined strut 105 is arranged between the side face of the first vertical plate 102 far away from the second vertical plate 103 and the bottom plate 101, a transverse plate 106 and a transverse plate 107 are symmetrically arranged on the side face of the second vertical plate 103 far away from the first vertical plate 102, the first transverse plate 106 and the second transverse plate 107 are both connected with the bottom plate 101, a reinforcing plate 108 is arranged between the first transverse plate 106 and the second transverse plate 107, and a through hole 109 connected with the shock absorber 12 is arranged on the first transverse plate 106 and.
A first lug plate 110 and a second lug plate 111 are symmetrically arranged on two side faces of the bottom plate 101, a second bolt hole 112 is formed in the first lug plate 110 and the second lug plate 111, an adjusting bolt 113 is arranged in the second bolt hole 112, and the adjusting bolt 113 abuts against the guide arm 3.
And a large gasket 14 is arranged at the joint of the guide arm 3 and the guide arm bracket 4.
The upper cover plate 9 comprises a top plate and a third vertical plate and a fourth vertical plate which are symmetrically arranged at the lower ends of the top plate, the top plate and an inverted U-shaped groove formed by the third vertical plate and the fourth vertical plate are used for arranging the axle 2, and the upper end of the top plate is symmetrically provided with a mounting groove used for arranging the U-shaped bolt 7.
The guide arm support 4 comprises a mounting plate 41, a first support plate 42 and a second support plate 43 which are symmetrically arranged, one end of the first support plate 42 is connected with the mounting plate 41, the other end of the first support plate 42 is provided with a pair of first flanges 44, one end of the second support plate 43 is connected with the mounting plate 41, the other end of the second support plate 43 is provided with a pair of second flanges 45, a third transverse plate and a fourth transverse plate are sequentially arranged between the first support plate 42 and the second support plate 43 from top to bottom, one end of the third transverse plate is connected with the mounting plate 41, the other end of the third transverse plate is connected with the middle part of the fourth transverse plate through a fifth vertical plate, a sixth vertical plate connected with the end part of the fourth transverse plate is arranged between the first flange 44 and the second flange 45, the end parts of the first flange 44 and the second flange 45 are connected with a boss 46, and a second through hole 47 connected with the guide arm 3 is arranged on, the mounting plate 41 is provided with a plurality of first connecting holes 48 connected with the frame 1 and the frame cross beam 8, and a groove 49 is arranged on the mounting plate 41 between the first supporting plate 42 and the second supporting plate 43.
The frame cross beam 8 comprises a cross beam body 81 and a connecting plate 82 connected with two ends of the cross beam body 81, the cross beam body 81 is of a hollow structure, the cross section of the cross beam body 81 is of a rectangular structure, a plurality of second connecting holes 83 connected with the frame 1 and the guide arm support 4 are formed in the periphery of the connecting plate 82, and a through hole 84 communicated with an inner cavity of the cross beam body 81 is formed in the middle of the connecting plate 82.
The beam body 81 comprises a first beam body 811 and a second beam body 812 and a third beam body 813 which are symmetrically arranged at two ends of the first beam body 811, wherein the cross-sectional area of the first beam body 811 is equal from the second beam body 812 to the third beam body 813, one end of the second beam body 812 and one end of the third beam body 813 are connected with the connecting plate 82, the other end of the second beam body 812 and the other end of the third beam body 813 are connected with the first beam body 811, and the cross-sectional areas of the second beam body 812 and the third beam body 813 are sequentially increased from the first beam body 811 to the connecting plate 82.
The guide arm 3 comprises a first leaf spring 31 and a second leaf spring 32 which are sequentially arranged from top to bottom, the first leaf spring 31 comprises a first horizontal section 311, one end of the first horizontal section 311 is provided with a rolling lug 312 connected with the guide arm support 4, a bushing 313 is sleeved in the rolling lug 312, the other end of the first horizontal section 311 is provided with a first mounting hole connected with the lower cover plate 10, the second leaf spring 32 comprises a second horizontal section 321, one end of the second horizontal section 321 is provided with a wrapping lug 322 wrapping the rolling lug 312, the middle of the second horizontal section 321 is provided with a second mounting hole connected with one end, far away from the rolling lug 312, of the first horizontal section 311, and the other end of the second horizontal section 321 is provided with a third mounting hole 323 connected with the air spring beam 5.
A limiting block 15 is arranged right above the upper cover plate 9, and the limiting block 15 is connected with the frame 1 through a limiting block support 16.
The principle of the invention is illustrated as follows:
the design aims at solving the problems that the manufacturing process of the guide arm in the prior art is high in requirement and has to be matched with a transversely arranged thrust rod and the trafficability characteristic of a vehicle is not good, and the design is specifically improved as follows:
(1) shape improvement of guide arm
Compared with the prior structure, the guide arm bracket is lengthened, the installation positions of the two ends of the guide arm are flush, and the middle part of the guide arm bracket is installed at the lower end of the axle, so that a Z-shaped bending structure is cancelled, the links of heat treatment and manufacturing of the guide arm are reduced, and the weight and the cost are reduced.
(2) Lower cover plate integrated shock absorber support
Because the lower support of the shock absorber is arranged at the rear end of the guide arm and is positioned at the tail part of the frame, and the ground clearance is small, the departure angle of the vehicle is small, and the trafficability of the vehicle is influenced; the shock absorber support is integrated under in this design on the apron, compares current structure, when reducing part quantity, the mounted position has risen to the guide arm top, has increased ground clearance and angle from the ground, effectively improves the trafficability characteristic of vehicle.
(3) Eliminating lateral thrust rods
Rely on the transverse thrust pole to axle transverse positioning, the part variety is many, and transverse force transmits the frame through the transverse thrust pole and easily leads to the frame atress uneven, and the local atress of frame is too big, has the risk of frame fracture, consequently, following three point improvement is made to this design:
a. the frame cross beam is additionally arranged at the mounting positions of the left longitudinal beam and the right longitudinal beam of the frame and the guide arm bracket to replace the original transverse thrust rod to serve as a force transmission and limiting structure, and compared with the transverse thrust rod, the transverse thrust rod has the advantages that the transverse force is dispersed to the two sides of the frame, the stress is more uniform, and the frame cracking risk is effectively avoided;
b. newly-increased gasket at the joint of the guide arm and the guide arm bracket
The large gasket has a large enough diameter, can effectively limit and transmit transverse force, can avoid abrasion to the guide arm support, can be replaced after abrasion, and avoids the problem that the guide arm support is abraded by using the guide arm of the existing air suspension for a long time;
c. the limiting structure on the lower cover plate has a transverse limiting effect on the guide arms by screwing in the adjusting bolts, so that the parallelism of the guide arms on two sides and the frame is ensured, the transverse force can be uniformly distributed on the longitudinal beams on two sides of the frame, the steering performance is ensured, and tire abrasion is reduced;
based on the newly added transverse force transmission and limiting structure, a transverse thrust rod is omitted, and the variety of parts of the suspension system is reduced; the transverse force is uniformly transmitted to the frames on the two sides through the guide arms, the guide arm supports and the frame cross beams, so that the transverse positioning effect is achieved, and the risk of cracking caused by overlarge local stress due to nonuniform stress of the frames is avoided.
Example 1:
referring to fig. 1 to 5, a composite air suspension system without matching with a thrust rod comprises a vehicle frame 1, an axle 2 and a guide arm 3, wherein one end of the guide arm 3 is connected with the vehicle frame 1 through a guide arm bracket 4, the other end of the guide arm 3 is connected with one end of an air spring 6 through an air spring cross beam 5, the other end of the air spring 6 is connected with the vehicle frame 1, and the middle part of the guide arm 3 is connected with the axle 2 through a U-shaped bolt 7; the combined type air suspension system further comprises a frame cross beam 8, the end portion of the frame cross beam 8 is connected with a guide arm support 4 through a frame 1, the guide arm 3 is located below the axle 2, a U-shaped bolt bottom plate 11 is arranged below the guide arm 3, a lower cover plate 10 is arranged between the guide arm 3 and the axle 2, an upper cover plate 9 is arranged above the axle 2, the U-shaped bolt 7 sequentially crosses over the upper cover plate 9, the lower cover plate 10 and the guide arm 3 and then is connected with the U-shaped bolt bottom plate 11, the lower cover plate 10 is connected with one end of a shock absorber 12, and the other end of the shock absorber 12 is connected with the frame 1 through a shock absorber support 13.
Example 2:
the basic contents are the same as example 1, except that:
referring to fig. 1 to 12, the lower cover plate 10 includes a bottom plate 101 and a first vertical plate 102 and a second vertical plate 103 symmetrically arranged at the upper end thereof, a U-shaped groove formed by the bottom plate 101, the first vertical plate 102 and the second vertical plate 103 is used for arranging the axle 2, a first bolt hole 104 connected with the guide arm 3 is arranged in the middle of the bottom plate 101, an inclined strut 105 is arranged between the side surface of the first vertical plate 102 away from the second vertical plate 103 and the bottom plate 101, a first transverse plate 106 and a second transverse plate 107 are symmetrically arranged on the side surface of the second vertical plate 103 away from the first vertical plate 102, the first transverse plate 106 and the second transverse plate 107 are both connected with the bottom plate 101, a reinforcing plate 108 is arranged between the first transverse plate 106 and the second transverse plate 107, and a first through hole 109 connected with the shock absorber 12 is arranged on the first transverse plate 106 and the second transverse; a first lug plate 110 and a second lug plate 111 are symmetrically arranged on two side surfaces of the bottom plate 101, a second bolt hole 112 is formed in the first lug plate 110 and the second lug plate 111, an adjusting bolt 113 is arranged in the second bolt hole 112, and the adjusting bolt 113 abuts against the guide arm 3; a large gasket 14 is arranged at the joint of the guide arm 3 and the guide arm bracket 4; the upper cover plate 9 comprises a top plate and a third vertical plate and a fourth vertical plate which are symmetrically arranged at the lower ends of the top plate, the top plate and an inverted U-shaped groove formed by the third vertical plate and the fourth vertical plate are used for arranging the axle 2, and the upper end of the top plate is symmetrically provided with a mounting groove used for arranging the U-shaped bolt 7.
Example 3:
the basic contents are the same as example 1, except that:
referring to fig. 1 to 8, the guide arm support 4 includes a mounting plate 41, a first support plate 42 and a second support plate 43 which are symmetrically arranged, one end of the first support plate 42 is connected with the mounting plate 41, the other end of the first support plate 42 is provided with a pair of first flanges 44, one end of the second support plate 43 is connected with the mounting plate 41, the other end of the second support plate 43 is provided with a pair of second flanges 45, a third transverse plate and a fourth transverse plate are sequentially arranged between the first support plate 42 and the second support plate 43 from top to bottom, one end of the third transverse plate is connected with the mounting plate 41, the other end of the third transverse plate is connected with the middle part of the fourth transverse plate through a fifth vertical plate, a sixth vertical plate connected with the end part of the fourth transverse plate is arranged between the first flange 44 and the second flange 45, the end parts of the first flange 44 and the second flange 45 are connected with a boss 46, the boss 46 is provided with a second through hole 47 connected with the guide arm 3, the mounting plate 41 is provided with a plurality of first connecting holes 48 connected with the frame 1 and the frame cross beam 8, and a groove 49 is arranged on the mounting plate 41 between the first support plate 42 and the second support plate 43.
Example 4:
the basic contents are the same as example 1, except that:
referring to fig. 2, 13, 14 and 15, the frame cross beam 8 includes a cross beam body 81 and a connecting plate 82 connected to two ends of the cross beam body 81, the cross beam body 81 is of a hollow structure, the cross section of the cross beam body 81 is of a rectangular structure, a plurality of second connecting holes 83 connected to the frame 1 and the guide arm support 4 are formed in the periphery of the connecting plate 82, and a through hole 84 communicated with an inner cavity of the cross beam body 81 is formed in the middle of the connecting plate 82; the beam body 81 comprises a first beam body 811 and a second beam body 812 and a third beam body 813 which are symmetrically arranged at two ends of the first beam body 811, wherein the cross-sectional area of the first beam body 811 is equal from the second beam body 812 to the third beam body 813, one end of the second beam body 812 and one end of the third beam body 813 are connected with the connecting plate 82, the other end of the second beam body 812 and the other end of the third beam body 813 are connected with the first beam body 811, and the cross-sectional areas of the second beam body 812 and the third beam body 813 are sequentially increased from the first beam body 811 to the connecting plate 82.
Example 5:
the basic contents are the same as example 1, except that:
referring to fig. 1 to 9, the guide arm 3 includes a first leaf spring 31 and a second leaf spring 32 sequentially arranged from top to bottom, the first leaf spring 31 includes a first horizontal section 311, one end of the first horizontal section 311 is provided with a rolling lug 312 connected to the guide arm support 4, a bushing 313 is sleeved in the rolling lug 312, the other end of the first horizontal section 311 is provided with a first mounting hole connected to the lower cover plate 10, the second leaf spring 32 includes a second horizontal section 321, one end of the second horizontal section 321 is provided with a wrapping lug 322 wrapping the rolling lug 312, the middle of the second horizontal section 321 is provided with a second mounting hole connected to one end of the first horizontal section 311 away from the rolling lug 312, and the other end of the second horizontal section 321 is provided with a third mounting hole 323 connected to the air spring beam 5.
Example 6:
the basic contents are the same as example 1, except that:
referring to fig. 1, a limit block 15 is arranged right above the upper cover plate 9, and the limit block 15 is connected with the frame 1 through a limit block bracket 16.
Claims (9)
1. The utility model provides a combined type air suspension system who does not match distance rod, includes frame (1), axle (2), leading arm (3), the one end of leading arm (3) is connected with frame (1) through leading arm support (4), and the other end of leading arm (3) is connected with the one end of air spring (6) through air spring crossbeam (5), and the other end of air spring (6) is connected with frame (1), and the middle part of leading arm (3) is connected with axle (2) through U type bolt (7), its characterized in that:
the combined type air suspension system further comprises a frame cross beam (8), the end part of the frame cross beam (8) is connected with a guide arm support (4) through a frame (1), the guide arm (3) is located below the axle (2), a U-shaped bolt bottom plate (11) is arranged below the guide arm (3), a lower cover plate (10) is arranged between the guide arm (3) and the axle (2), an upper cover plate (9) is arranged above the axle (2), the U-shaped bolt (7) sequentially crosses over the upper cover plate (9), the lower cover plate (10) and the guide arm (3) and then is connected with the U-shaped bolt bottom plate (11), the lower cover plate (10) is connected with one end of a shock absorber (12), and the other end of the shock absorber (12) is connected with the frame (1) through a shock absorber support (13);
the frame cross beam (8) comprises a cross beam body (81) and connecting plates (82) connected with the two ends of the cross beam body (81), the cross beam body (81) is of a hollow structure, the cross section of the cross beam body (81) is of a rectangular structure, a plurality of second connecting holes (83) connected with the frame (1) and the guide arm support (4) are formed in the periphery of each connecting plate (82), and through holes (84) communicated with the inner cavity of the cross beam body (81) are formed in the middle of each connecting plate (82).
2. The mismatched thrust bar composite air suspension system of claim 1, wherein: the lower cover plate (10) comprises a bottom plate (101) and a first vertical plate (102) and a second vertical plate (103) which are symmetrically arranged at the upper end of the bottom plate, a U-shaped groove formed by the bottom plate (101), a first vertical plate (102) and a second vertical plate (103) is used for arranging the axle (2), a first bolt hole (104) connected with the guide arm (3) is arranged in the middle of the bottom plate (101), an inclined strut (105) is arranged between the side surface of the first vertical plate (102) far away from the second vertical plate (103) and the bottom plate (101), a first transverse plate (106) and a second transverse plate (107) are symmetrically arranged on the side surface of the second vertical plate (103) far away from the first vertical plate (102), the first transverse plate (106) and the second transverse plate (107) are connected with the bottom plate (101), a reinforcing plate (108) is arranged between the first transverse plate (106) and the second transverse plate (107), and first through holes (109) connected with the shock absorber (12) are formed in the first transverse plate (106) and the second transverse plate (107).
3. The mismatched thrust bar composite air suspension system of claim 2, wherein: a first lug plate (110) and a second lug plate (111) are symmetrically arranged on two side faces of the bottom plate (101), a second bolt hole (112) is formed in the first lug plate (110) and the second lug plate (111), an adjusting bolt (113) is arranged in the second bolt hole (112), and the adjusting bolt (113) abuts against the guide arm (3).
4. The mismatched thrust bar composite air suspension system of claim 3, wherein: and a large gasket (14) is arranged at the joint of the guide arm (3) and the guide arm bracket (4).
5. The mismatched thrust bar composite air suspension system of claim 1, wherein: the upper cover plate (9) comprises a top plate and a third vertical plate and a fourth vertical plate which are symmetrically arranged at the lower ends of the top plate, the top plate and an inverted U-shaped groove formed by the third vertical plate and the fourth vertical plate are used for arranging the axle (2), and the upper end of the top plate is symmetrically provided with mounting grooves used for arranging U-shaped bolts (7).
6. The mismatched thrust bar composite air suspension system of any of claims 1-5, wherein: the guide arm support (4) comprises a mounting plate (41), a first support plate (42) and a second support plate (43) which are symmetrically arranged, one end of the first support plate (42) is connected with the mounting plate (41), the other end of the first support plate (42) is provided with a pair of first flanges (44), one end of the second support plate (43) is connected with the mounting plate (41), the other end of the second support plate (43) is provided with a pair of second flanges (45), a third transverse plate and a fourth transverse plate are sequentially arranged between the first support plate (42) and the second support plate (43) from top to bottom, one end of the third transverse plate is connected with the mounting plate (41), the other end of the third transverse plate is connected with the middle part of the fourth transverse plate through a fifth vertical plate, and a sixth vertical plate connected with the end part of the fourth transverse plate is arranged between the first flange (44) and the second flange (45), the end parts of the first flange (44) and the second flange (45) are connected with a boss (46), a second through hole (47) connected with the guide arm (3) is formed in the boss (46), a plurality of first connecting holes (48) connected with the frame (1) and the frame cross beam (8) are formed in the mounting plate (41), and a groove (49) is formed in the position, between the first supporting plate (42) and the second supporting plate (43), of the mounting plate (41).
7. The mismatched thrust bar composite air suspension system of claim 1, wherein: the cross beam body (81) comprises a first cross beam body (811) and a second cross beam body (812) and a third cross beam body (813) which are symmetrically arranged at two ends of the first cross beam body (811), the cross sectional area of the first cross beam body (811) is equal from the second cross beam body (812) to the third cross beam body (813), one end of the second cross beam body (812) and one end of the third cross beam body (813) are connected with a connecting plate (82), the other end of the second cross beam body (812) and the other end of the third cross beam body (813) are connected with the first cross beam body (811), and the cross sectional area of the second cross beam body (812) and the cross sectional area of the third cross beam body (813) are sequentially increased from the first cross beam body (811) to the connecting plate.
8. The mismatched thrust bar composite air suspension system of any of claims 1-5, wherein: the guide arm (3) comprises a first leaf spring (31) and a second leaf spring (32) which are arranged from top to bottom in sequence, the first leaf spring (31) comprises a first horizontal section (311), one end of the first horizontal section (311) is provided with a rolling lug (312) connected with the guide arm bracket (4), a bushing (313) is sleeved in the rolling lug (312), the other end of the first horizontal section (311) is provided with a first mounting hole connected with the lower cover plate (10), the second leaf spring (32) comprises a second horizontal section (321), one end of the second horizontal section (321) is provided with a lug (322) wrapping the lug (312), the middle of the second horizontal section (321) is provided with a second mounting hole connected with one end, far away from the lug (312), of the first horizontal section (311), and the other end of the second horizontal section (321) is provided with a third mounting hole (323) connected with the air spring beam (5).
9. The mismatched thrust bar composite air suspension system of any of claims 1-5, wherein: a limiting block (15) is arranged right above the upper cover plate (9), and the limiting block (15) is connected with the frame (1) through a limiting block support (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910749206.7A CN110539601B (en) | 2019-08-14 | 2019-08-14 | Combined type air suspension system of unmatched thrust rod |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910749206.7A CN110539601B (en) | 2019-08-14 | 2019-08-14 | Combined type air suspension system of unmatched thrust rod |
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| Publication Number | Publication Date |
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| CN110539601A CN110539601A (en) | 2019-12-06 |
| CN110539601B true CN110539601B (en) | 2021-02-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910749206.7A Active CN110539601B (en) | 2019-08-14 | 2019-08-14 | Combined type air suspension system of unmatched thrust rod |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111791659B (en) * | 2020-06-30 | 2022-08-19 | 东风商用车有限公司 | Air suspension system |
| CN112937245A (en) * | 2021-01-15 | 2021-06-11 | 东风柳州汽车有限公司 | Automobile air suspension structure and automobile |
| CN114475123A (en) * | 2022-03-10 | 2022-05-13 | 一汽解放汽车有限公司 | Integrated cover plate, suspension system and automobile |
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| EP1420996A2 (en) * | 2001-08-22 | 2004-05-26 | Volvo Trucks North America, Inc. | Heavy duty vehicle frame |
| DE10334156A1 (en) * | 2003-07-26 | 2005-02-24 | Man Nutzfahrzeuge Ag | Axle suspension for e.g. goods vehicle or omnibus has stiff semi-trailing arms so that apart from them no other transverse force absorbing axle location elements such as for example a Panhard rod are required |
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| CN106394151A (en) * | 2016-09-23 | 2017-02-15 | 奇瑞汽车股份有限公司 | Composite air spring suspension device |
| CN208842168U (en) * | 2018-07-27 | 2019-05-10 | 江西远成汽车配件有限公司 | A kind of air suspension and automobile |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2189795A (en) * | 1994-03-25 | 1995-10-17 | Holland Binkley Company | Wheeled vehicle suspension |
| EP1420996A2 (en) * | 2001-08-22 | 2004-05-26 | Volvo Trucks North America, Inc. | Heavy duty vehicle frame |
| DE10334156A1 (en) * | 2003-07-26 | 2005-02-24 | Man Nutzfahrzeuge Ag | Axle suspension for e.g. goods vehicle or omnibus has stiff semi-trailing arms so that apart from them no other transverse force absorbing axle location elements such as for example a Panhard rod are required |
| CN2841388Y (en) * | 2005-11-11 | 2006-11-29 | Tuthill悬架技术(北京)有限公司 | Improved air suspension propelling rod arrangement structure |
| CN102616098A (en) * | 2012-04-17 | 2012-08-01 | 苏州奥杰汽车工业有限公司 | Plate spring and guide arm combined-type air suspension |
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| CN110539601A (en) | 2019-12-06 |
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