CN110549807A - Front plate spring suspension system - Google Patents

Front plate spring suspension system Download PDF

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Publication number
CN110549807A
CN110549807A CN201910802187.XA CN201910802187A CN110549807A CN 110549807 A CN110549807 A CN 110549807A CN 201910802187 A CN201910802187 A CN 201910802187A CN 110549807 A CN110549807 A CN 110549807A
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CN
China
Prior art keywords
leaf spring
frame
plate
lug
fixed
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201910802187.XA
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Chinese (zh)
Inventor
杜笑晨
李应涛
彭显威
闫明星
范培斌
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dongfeng Commercial Vehicle Co Ltd
Original Assignee
Dongfeng Commercial Vehicle Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dongfeng Commercial Vehicle Co Ltd filed Critical Dongfeng Commercial Vehicle Co Ltd
Priority to CN201910802187.XA priority Critical patent/CN110549807A/en
Publication of CN110549807A publication Critical patent/CN110549807A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60GVEHICLE SUSPENSION ARRANGEMENTS
    • B60G11/00Resilient suspensions characterised by arrangement, location or kind of springs
    • B60G11/02Resilient suspensions characterised by arrangement, location or kind of springs having leaf springs only
    • B60G11/10Resilient suspensions characterised by arrangement, location or kind of springs having leaf springs only characterised by means specially adapted for attaching the spring to axle or sprung part of the vehicle
    • B60G11/12Links, pins, or bushes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60GVEHICLE SUSPENSION ARRANGEMENTS
    • B60G15/00Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type
    • B60G15/02Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60GVEHICLE SUSPENSION ARRANGEMENTS
    • B60G2202/00Indexing codes relating to the type of spring, damper or actuator
    • B60G2202/10Type of spring
    • B60G2202/11Leaf spring

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vehicle Body Suspensions (AREA)

Abstract

The utility model provides a preceding leaf spring suspension system, belongs to heavy truck spare part field, including frame (1) and leaf spring (3), leaf spring (3) front end on the vehicle advancing direction is preceding eye (32), preceding eye (32) fix on frame (1), leaf spring (3) front end on the vehicle advancing direction is back eye (31), back eye (31) fix on frame (1) rear end, leaf spring (3) middle part is fixed on front axle (10) through U type bolt (9), be equipped with between front axle (10) and lug end support (17) shock absorber (14), leaf spring (3) be single leaf spring, still be fixed with protection mechanism (18) on frame (1), protection mechanism (18) be located lug end support (17) at the back. The single leaf spring is light in weight, small in dynamic stiffness, low in offset frequency and capable of improving smoothness of an automobile, and the protective mechanism is used for limiting backward movement of the lifting lug.

Description

Front plate spring suspension system
Technical Field
The invention relates to the technical field of heavy truck parts, in particular to a front steel spring plate suspension system.
Background
The suspension system of the automobile refers to a connection structure system among a vehicle body, a vehicle frame and wheels, when the automobile runs on a road, the automobile is subjected to vibration and impact due to the change of the ground, and part of the force of the impact is absorbed by tires, but most of the force is absorbed by the suspension system between the tires and the vehicle body.
At present, the development of heavy trucks is restricted by objective factors such as the implementation of national policy for managing overload and charging by weight, the rising of fuel price, and the strong requirements of enterprises and users on cost saving and operation efficiency improvement. The heavy truck reduces the dead weight of the whole vehicle is an important way to reduce oil consumption, currently, most of front suspension systems of heavy trucks use a steel plate spring as an elastic element, for example, a pair of three leaf springs, the weight of which is generally above 90 kg, so that the weight reduction of the elastic element is one of the methods for solving the dead weight.
Chinese patent grant publication no: CN203666306U, date of authorized announcement: year 2014, 25/06 month, patent name: the utility model discloses a heavy truck suspension structure, this utility model discloses a heavy truck suspension structure, including the leaf spring, the one end and the big support of frame of leaf spring are through round pin hub connection, and the other end passes through leaf spring lug, round pin axle and leaf spring leg joint, the leaf spring support pass through the bolt and be connected with the solebar, the middle part of leaf spring is passed through U type bolt with leaf spring clamp plate and leaf spring bottom bracket fixed connection on the front axle, simple structure, the leaf spring quality that adopts macromolecular material to make is light, the travelling comfort is good. However, the single leaf spring may break at the front half section in the advancing direction when working for a long time, and the corresponding front axle after breaking can move backwards directly, so that the front axle is abnormally steered, and potential safety hazards exist.
Referring to fig. 2, a front leaf spring suspension system of a certain commercial vehicle on the market comprises a leaf spring 3, wherein the leaf spring 3 is of a two-leaf spring structure, one end of the leaf spring 3 is fixed on a vehicle frame 1 through a bushing, a front leaf spring pin and a fixed end bracket 2, the other end of the leaf spring 3 is fixed on the vehicle frame 1 through a lifting lug 16, the bushing, a rear leaf spring pin and a lifting lug end bracket 17, the middle part of the leaf spring 3 is fixed on a front axle 10 through a U-shaped bolt 9, a cover plate 8 is padded between the upper surface of the leaf spring 3 and the U-shaped bolt 9, a backing plate 11 is padded between the lower surface of the leaf spring 3 and the front axle 10, a limiting block 13 is further fixed on the vehicle frame 1, the limiting block 13 is positioned above the front axle 10, a shock absorber 14 is arranged between the limiting block 13 and the U-shaped bolt 9, one end of the shock absorber 14 is connected with the front axle 10, still even there is stabilizer bar 6 on the front axle 10, stabilizer bar 6 one end is passed through stabilizer bar support 7 and is linked on front axle 10, and the other end passes through jib 5 and jib support 4 and links on frame 1, and the leaf spring is two leaf spring structures, and weight is heavy, and dynamic stiffness is big, has caused the damping effect poor, and the ride comfort is poor.
Disclosure of Invention
The invention aims to overcome the defects that the existing plate spring is a multi-leaf spring, so that the existing plate spring is heavy in weight, large in dynamic stiffness and poor in smoothness, and a single leaf spring has potential safety hazards under the condition of long-time work, and provides a front plate spring suspension system which is light in leaf spring, small in dynamic stiffness, good in smoothness and free of potential safety hazards.
In order to achieve the above purpose, the technical scheme of the invention is as follows:
A front leaf spring suspension system comprises a vehicle frame and a leaf spring, wherein the front end of the leaf spring in the advancing direction of a vehicle is a front rolling lug, the front rolling lug is fixed on the frame through a bush, a front steel plate spring pin and a fixed end bracket, the rear end of the plate spring in the advancing direction of the vehicle is a rear rolling lug, the rear rolling lug is fixed on the frame through a lifting lug, a bush, a rear steel plate spring pin and a lifting lug end bracket, the middle part of the plate spring is fixed on a front axle through a U-shaped bolt, a shock absorber is arranged between the front axle and the lifting lug end bracket, one end of the shock absorber is connected with the front axle through a lower bracket of the shock absorber, the other end of the shock absorber is fixed on the frame through an upper bracket of the shock absorber, the plate spring is a single-piece spring, a protection mechanism is arranged behind the lifting lug end support, one end of the protection mechanism is fixed on the frame, and the other end of the protection mechanism extends out towards the lower part of the frame and extends to the front back of the rear rolling lug.
The part of the protection mechanism fixed on the frame is a connecting frame, the part of the protection mechanism extending towards the lower part of the frame is a stop plate, one surface of the stop plate towards the back rolling lug is a stop surface, and the stop surface is opposite to the back rolling lug.
The link is "L" type structure, comprises vertical board and horizontal plate, all be equipped with the bolt hole on vertical board and the horizontal plate.
The middle of the stop plate is of a hollow structure.
The distance from the stop surface to the back rolling lug is a1, and when the lifting lug swings backwards to the maximum extent, a1 is 3-5 mm.
And an elastic body is arranged on the stop surface.
A cover plate is arranged between the upper surface of the plate spring and the U-shaped bolt, a base plate is arranged between the lower surface of the plate spring and the front axle, a limiting block is further fixed on the frame, and the limiting block is located above the front axle.
The frame is also connected with a transverse stabilizer bar, the transverse stabilizer bar is positioned between the front axle and the fixed end bracket, one end of the transverse stabilizer bar is connected on the front axle through a stabilizer bar bracket, and the other end of the transverse stabilizer bar is connected on the frame through a suspender and a suspender bracket.
Compared with the prior art, the invention has the beneficial effects that:
1. According to the invention, the spring is a single leaf spring, so that on one hand, a lighter single leaf spring is selected, the overall weight of the front leaf spring suspension is reduced, on the other hand, the dynamic stiffness of the leaf spring is reduced, the offset frequency is reduced, and the smoothness of an automobile is improved. Because the front half section of single leaf spring breaks the back, corresponds the front axle and can directly move backward, leads to the front wheel to turn to unusually, influences driving safety, so install a protection machanism behind lug end support additional, after the front half section of single leaf spring breaks, protection machanism can block the leaf spring that moves backward, avoids the front axle to move backward by a wide margin.
2. According to the invention, one surface of the stop plate facing the back rolling lug is a stop surface, the stop surface faces the back rolling lug, and the stop surface is a main contact surface between the broken single spring and the back rolling lug, so that a protection mechanism can be ensured to resist against the broken plate spring.
3. The connecting frame is of an L-shaped structure and comprises a vertical plate and a horizontal plate, and bolt holes are formed in the vertical plate and the horizontal plate. The connecting frame is of an L-shaped structure, so that the connection firmness of the protection mechanism and the frame is improved, and the protection mechanism is prevented from falling off due to strong impact; the stop plate is connected with the vertical plate, and the vertical plate is perpendicular to the plate spring, so that the stress direction of the protection mechanism is parallel to the frame, and the deformation of the protection mechanism is avoided.
4. The middle of the stop plate is of a hollow structure, so that the weight of the protection mechanism is reduced under the condition that the strength of the protection mechanism is not influenced.
5. The distance from the stop surface to the rear eye is a1, when the lifting lug swings backwards to the maximum extent, a1 is 3-5 mm, the safe distance for the front axle to move backwards after the front axle is broken is achieved, and abnormal steering is avoided.
6. The stop surface is provided with an elastic body. When the single-leaf spring normally works, the elastic body can reduce the force caused by the backward swing of the single-leaf spring, the vibration of a vehicle caused by overlarge inertia is avoided, and when the broken leaf spring impacts the protection mechanism, the elastic body can reduce the impact of the leaf spring on the protection mechanism due to the inertia, so that the safety is improved.
7. according to the invention, the cover plate is padded between the upper surface of the plate spring and the U-shaped bolt, the base plate is padded between the lower surface of the plate spring and the front axle for adjusting the vehicle height, the vehicle frame is also fixedly provided with the limiting block, and the limiting block is positioned above the front axle to avoid the collision between the front axle and the vehicle frame.
8. the transverse stabilizer bar is connected to the frame, so that the vehicle body is prevented from transversely inclining too much when turning, and the vehicle body is kept balanced as much as possible.
drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a front view of the prior art;
FIG. 3 is a perspective view of the protection mechanism;
FIG. 4 is a right side view of a portion of the present invention;
FIG. 5 is a front view of a portion of the structure of the present invention;
FIG. 6 is a front view of a portion of a second construction of the present invention;
in the figure: the suspension device comprises a frame 1, a fixed end bracket 2, a leaf spring 3, a back rolling lug 31, a front rolling lug 32, a suspension rod bracket 4, a suspension rod 5, a stabilizer bar 6, a stabilizer bar bracket 7, a cover plate 8, a U-shaped bolt 9, a front axle 10, a backing plate 11, a lower vibration absorber bracket 12, a limiting block 13, a vibration absorber 14, an upper vibration absorber bracket 15, a lifting lug 16, a back steel plate spring pin 161, a lifting lug end bracket 17, a protection mechanism 18, a stop plate 181, a connecting plate 182, a vertical plate 183, a horizontal plate 184, a bolt hole 185, a stop surface 186, an elastic body 187, and a distance a1 from the stop surface 186 to the back rolling.
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, 3, 4, 5 and 6, a front leaf spring suspension system comprises a vehicle frame 1 and a leaf spring 3, wherein the front end of the leaf spring 3 in the vehicle advancing direction is a front eye 32, the front eye 32 is fixed on the vehicle frame 1 through a bushing, a front leaf spring pin and a fixing end bracket 2, the bushing is arranged in the front eye 32, the front leaf spring pin penetrates through the bushing to fix the front eye 32 and the fixing end bracket 2 together, the rear end of the leaf spring 3 in the vehicle advancing direction is a rear eye 31, the rear eye 31 is fixed on the vehicle frame 1 through a lifting lug 16, a bushing, a rear leaf spring pin 161 and a lifting lug end bracket 17, the bushing is arranged in the rear eye 31, the rear leaf spring pin 161 penetrates through the bushing to fix the rear eye 31 and one end of the lifting lug 16 together, the other end of the lifting lug 16 is fixed on the lifting lug end bracket 17, the middle part of the leaf spring 3 is fixed on a front axle 10 through a U-shaped bolt 9, a shock absorber 14 is arranged between the front axle 10 and the lifting lug end support 17, one end of the shock absorber 14 is connected with the front axle 10 through a shock absorber lower support 12, the other end of the shock absorber 14 is fixed on the frame 1 through a shock absorber upper support 15, the plate spring 3 is a single plate spring, a protection mechanism 18 is arranged behind the lifting lug end support 17, one end of the protection mechanism 18 is fixed on the frame 1, and the other end of the protection mechanism extends out towards the lower part of the frame 1 and extends to the rear part right behind the rear rolling lug 32.
The protection mechanism 18 is made of metal or engineering plastic, the part of the protection mechanism 18 fixed on the vehicle frame 1 is a connecting frame 182, the part of the protection mechanism 18 extending towards the lower part of the vehicle frame 1 is a stop plate 181, one surface of the stop plate 181 facing the rear rolling lug 31 is a stop surface 186, and the stop surface 186 faces the rear rolling lug 31.
the stop plate 181 is a thick metal plate or a thick engineering plastic plate, the stop plate 181 is perpendicular to the upper cross beam of the frame 1, the stop plate 181 faces the side surface of the rear rolling lug 31 to form a stop surface 186, the stop plate 181 is located behind the stop surface 186 and has a hollow structure in the middle of the plate, or the stop plate 181 is perpendicular to the upper longitudinal beam of the frame 1 and faces the front surface of the rear rolling lug 31 to form the stop surface 186.
the connecting frame 182 is of an L-shaped structure and comprises a vertical plate 183 and a horizontal plate 184, and bolt holes 185 are formed in the vertical plate 183 and the horizontal plate 184.
The distance from the stop surface 186 to the rear rolling lug 31 is a1, and when the lifting lug 16 swings backwards maximally, the distance a1 is 3-5 mm.
An elastic body 187 is mounted on the stop surface 186.
A cover plate 8 is padded between the upper surface of the plate spring 3 and the U-shaped bolt 9, a backing plate 11 is padded between the lower surface of the plate spring 3 and the front axle 10, a limiting block 13 is further fixed on the frame 1, and the limiting block 13 is positioned above the front axle 10.
Still even have stabilizer bar 6 on frame 1, stabilizer bar 6 be located front axle 10 and stiff end support 2 between, stabilizer bar 6 one end is passed through stabilizer bar support 7 and is connected on front axle 10, and the other end passes through jib 5 and jib support 4 and is connected on frame 1.
The single leaf spring is light in weight, small in dynamic stiffness, low in offset frequency and capable of improving smoothness of an automobile, and the protective mechanism is used for limiting backward movement of the lifting lug.
Example 1
Referring to fig. 1, a front leaf spring suspension system comprises a vehicle frame 1 and a leaf spring 3, wherein the front end of the leaf spring 3 in the vehicle advancing direction is a front rolling lug 32, the front rolling lug 32 is fixed on the vehicle frame 1 through a bushing, a front leaf spring pin and a fixed end bracket 2, the rear end of the leaf spring 3 in the vehicle advancing direction is a rear rolling lug 31, the rear rolling lug 31 is fixed on the vehicle frame 1 through a lifting lug 16, a bushing, a rear leaf spring pin and a lifting lug end bracket 17, the middle part of the leaf spring 3 is fixed on a front axle 10 through a U-shaped bolt 9, a cover plate 8 is padded between the upper surface of the leaf spring 3 and the U-shaped bolt 9, a backing plate 11 is padded between the lower surface of the leaf spring 3 and the front axle 10, a limiting block 13 is further fixed on the vehicle frame 1, the limiting block 13 is positioned above the front axle 10, and a shock absorber 14 is arranged between the limiting block 13 and, one end of the shock absorber 14 is connected with the front axle 10 through a shock absorber lower support 12, the other end of the shock absorber is fixed on the frame 1 through a shock absorber upper support 15, the frame 1 is further connected with a transverse stabilizer bar 6, the transverse stabilizer bar 6 is positioned between the front axle 10 and the fixed end support 2, one end of the transverse stabilizer bar 6 is connected on the front axle 10 through a stabilizer bar support 7, the other end of the transverse stabilizer bar is connected on the frame 1 through a hanger rod 5 and a hanger rod support 4, the plate spring 3 is a single-leaf spring, a protection mechanism 18 is arranged behind the lifting lug end support 17, one end of the protection mechanism 18 is fixed on the frame 1, and the other end of the protection mechanism extends towards the lower part of the frame 1 and extends to.
The protection mechanism 18 is made of steel, the part of the protection mechanism 18 fixed on the vehicle frame 1 is a connecting frame 182, the part of the protection mechanism 18 extending towards the rear rolling lug 32 is a baffle 181, one surface of the baffle 181 facing the rear rolling lug 31 is a baffle surface 186, and the baffle surface 186 faces the rear rolling lug 31. The stop plate 181 is a thick steel plate, the stop plate 181 is perpendicular to the upper cross beam of the frame 1, the side surface of the stop plate 181 facing the rear rolling lug 31 is a stop surface 186, and the middle of a plate located behind the stop surface 186 on the stop plate 181 is of a hollow structure.
Referring to fig. 3, the connecting frame 182 is made of steel material with an "L" shaped structure, and is composed of a vertical plate 183 and a horizontal plate 184, and bolt holes 185 are formed in both the vertical plate 183 and the horizontal plate 184.
referring to fig. 4, the stop plate 181 is connected to the vertical plate 183, the stop plate 181 and the vertical plate 183 are in a perpendicular relationship with the plate spring 3, and the thickness of the stop plate 181 is smaller than the width of the rear ear 32.
Referring to fig. 5, the distance from the stop surface 186 to the rear rolling ear 31 is a1, and when the lifting lug 16 swings backwards maximally, a1 is equal to 3-5 mm.
Example 2
Referring to fig. 1, a front leaf spring suspension system comprises a vehicle frame 1 and a leaf spring 3, wherein the front end of the leaf spring 3 in the vehicle advancing direction is a front rolling lug 32, the front rolling lug 32 is fixed on the vehicle frame 1 through a bushing, a leaf spring pin and a fixed end bracket 2, the rear end of the leaf spring 3 in the vehicle advancing direction is a rear rolling lug 31, the rear rolling lug 31 is fixed on the vehicle frame 1 through a lifting lug 16, a bushing, a leaf spring pin and a lifting lug end bracket 17, the middle part of the leaf spring 3 is fixed on a front axle 10 through a U-shaped bolt 9, a cover plate 8 is padded between the upper surface of the leaf spring 3 and the U-shaped bolt 9, a backing plate 11 is padded between the lower surface of the leaf spring 3 and the front axle 10, a limiting block 13 is further fixed on the vehicle frame 1, the limiting block 13 is positioned above the front axle 10, and a shock absorber 14 is arranged between the limiting block 13 and, one end of the shock absorber 14 is connected with the front axle 10 through a shock absorber lower support 12, the other end of the shock absorber is fixed on the frame 1 through a shock absorber upper support 15, the frame 1 is further connected with a transverse stabilizer bar 6, the transverse stabilizer bar 6 is positioned between the front axle 10 and the fixed end support 2, one end of the transverse stabilizer bar 6 is connected on the front axle 10 through a stabilizer bar support 7, the other end of the transverse stabilizer bar 6 is connected on the frame 1 through a hanger rod 5 and a hanger rod support 4, the plate spring 3 is a single-leaf spring, a protection mechanism 18 is arranged behind the lifting lug end support 17, one end of the protection mechanism 18 is fixed on the frame 1, and the other end of the protection mechanism extends towards the rear rolling lug 32 and extends to the right.
The protection mechanism 18 is made of polyamide, the part of the protection mechanism 18 fixed on the frame 1 is a connecting frame 182, the part of the protection mechanism 18 extending towards the rear rolling lug 32 is a baffle 181, one surface of the baffle 181 facing the rear rolling lug 31 is a baffle surface 186, and the baffle surface 186 faces the rear rolling lug 31. The stop plate 181 is a thick polyamide plate, the stop plate 181 is perpendicular to the upper cross beam of the frame 1, the side surface of the stop plate 181 facing the rear rolling lug 31 is a stop surface 186, and the middle of the plate behind the stop surface 186 on the stop plate 181 is a hollow structure.
Referring to fig. 3, the connecting frame 182 is a polyamide plate with an "L" shaped structure, and is composed of a vertical plate 183 and a horizontal plate 184, and bolt holes 185 are formed in both the vertical plate 183 and the horizontal plate 184.
Referring to fig. 6, an elastic body 187 is mounted on the stop surface 186, and the elastic body 187 is natural rubber or synthetic rubber or polyurethane.

Claims (8)

1. A front steel plate spring suspension system comprises a vehicle frame (1) and a plate spring (3), wherein the front end of the plate spring (3) in the advancing direction of a vehicle is a front rolling lug (32), the front rolling lug (32) is fixed on the vehicle frame (1) through a bushing, a front steel plate spring pin and a fixed end support (2), the rear end of the plate spring (3) in the advancing direction of the vehicle is a rear rolling lug (31), the rear rolling lug (31) is fixed on the vehicle frame (1) through a lifting lug (16), a bushing, a rear steel plate spring pin (161) and a lifting lug end support (17), the middle of the plate spring (3) is fixed on a front axle (10) through a U-shaped bolt (9), a lifting lug (14) is arranged between the front axle (10) and the lifting lug end support (17), one end of the vibration absorber (14) is connected with the front axle (10) through a lower vibration absorber support (12), and the other end of the vibration absorber is fixed on the vehicle frame (1) through an, the method is characterized in that: the plate spring (3) is a single-leaf spring, a protection mechanism (18) is arranged behind the lifting lug end support (17), one end of the protection mechanism (18) is fixed on the frame (1), and the other end of the protection mechanism extends out towards the lower part of the frame (1) and extends to the rear part right behind the rear rolling lug (32).
2. A front leaf spring suspension system according to claim 1, wherein: the part of the protection mechanism (18) fixed on the frame (1) is a connecting frame (182), the part of the protection mechanism (18) extending towards the lower part of the frame (1) is a stop plate (181), one surface of the stop plate (181) facing the rear rolling lug (31) is a stop surface (186), and the stop surface (186) faces the rear rolling lug (31).
3. A front leaf spring suspension system according to claim 2, wherein: the connecting frame (182) is of an L-shaped structure and comprises a vertical plate (183) and a horizontal plate (184), and bolt holes (185) are formed in the vertical plate (183) and the horizontal plate (184).
4. A front leaf spring suspension system according to claim 2, wherein: the middle of the stop plate (181) is of a hollow structure.
5. A front leaf spring suspension system according to claim 2, wherein: the distance from the stop surface (186) to the back rolling lug (31) is a1, and when the lifting lug (16) swings backwards maximally, the a1 is 3-5 mm.
6. A front leaf spring suspension system according to claim 2, wherein: an elastic body (187) is arranged on the stop surface (186).
7. A front leaf spring suspension system according to claim 1, wherein: cover plate (8) are cushioned between the upper surface of leaf spring (3) and U type bolt (9), backing plate (11) are cushioned between the lower surface of leaf spring (3) and front axle (10), still be fixed with stopper (13) on frame (1), stopper (13) be located front axle (10) top.
8. A front leaf spring suspension system according to claim 1, wherein: still even there is stabilizer bar (6) on frame (1), stabilizer bar (6) be located between front axle (10) and stiff end support (2), stabilizer bar (6) one end is passed through stabilizer bar support (7) and is connected on front axle (10), and the other end passes through jib (5) and jib support (4) and links on frame (1).
CN201910802187.XA 2019-08-28 2019-08-28 Front plate spring suspension system Pending CN110549807A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112009190A (en) * 2020-08-14 2020-12-01 东风商用车有限公司 Leaf spring lug length adjustable leaf spring suspension system
CN112009191A (en) * 2020-08-14 2020-12-01 东风商用车有限公司 Leaf spring lug and install leaf spring suspension system of this leaf spring lug
CN112013064A (en) * 2020-08-24 2020-12-01 东风商用车有限公司 Leaf spring assembly
CN113370731A (en) * 2021-06-23 2021-09-10 东风柳州汽车有限公司 Leaf spring suspension
CN114228424A (en) * 2022-01-24 2022-03-25 一汽解放汽车有限公司 Automotive suspension system and vehicle

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EP1571013A1 (en) * 2004-03-05 2005-09-07 MAN Nutzfahrzeuge Österreich AG Sprung suspension of a rigid axle to the chassis of a vehicle, especially a lorry or a bus
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CN200939817Y (en) * 2006-08-18 2007-08-29 上海科曼车辆部件系统有限公司 Single swinging arm air suspension combined structure of semitrailer
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Publication number Priority date Publication date Assignee Title
JPS57118913U (en) * 1981-01-19 1982-07-23
CN2546233Y (en) * 2002-05-30 2003-04-23 中国重型汽车集团有限公司 Oscillating balance suspension frame
JP2005075017A (en) * 2003-08-28 2005-03-24 Hino Motors Ltd Suspension apparatus
EP1571013A1 (en) * 2004-03-05 2005-09-07 MAN Nutzfahrzeuge Österreich AG Sprung suspension of a rigid axle to the chassis of a vehicle, especially a lorry or a bus
DE102005032611A1 (en) * 2005-07-11 2007-01-18 Iveco Magirus Ag Leaf spring suspension e.g. front axle suspension, for commercial vehicle, has stop unit attached on vehicle frame to limit backward directed pivoting of spring bail over preset maximum hopping-pivoting range
CN200939817Y (en) * 2006-08-18 2007-08-29 上海科曼车辆部件系统有限公司 Single swinging arm air suspension combined structure of semitrailer
CN102365183A (en) * 2009-04-09 2012-02-29 日本发条株式会社 Suspension device
CN206264741U (en) * 2016-11-01 2017-06-20 中国第一汽车股份有限公司 A kind of lightweight front suspension apparatus
CN109664703A (en) * 2017-10-16 2019-04-23 福特全球技术公司 Axle suspension
CN208630297U (en) * 2018-03-30 2019-03-22 东风商用车有限公司 A kind of fixed device of Automotive Stabilizer Bar

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112009190A (en) * 2020-08-14 2020-12-01 东风商用车有限公司 Leaf spring lug length adjustable leaf spring suspension system
CN112009191A (en) * 2020-08-14 2020-12-01 东风商用车有限公司 Leaf spring lug and install leaf spring suspension system of this leaf spring lug
CN112009191B (en) * 2020-08-14 2021-05-11 东风商用车有限公司 Leaf spring lug and install leaf spring suspension system of this leaf spring lug
CN112009190B (en) * 2020-08-14 2021-05-11 东风商用车有限公司 Leaf spring lug length adjustable leaf spring suspension system
CN112013064A (en) * 2020-08-24 2020-12-01 东风商用车有限公司 Leaf spring assembly
CN113370731A (en) * 2021-06-23 2021-09-10 东风柳州汽车有限公司 Leaf spring suspension
CN114228424A (en) * 2022-01-24 2022-03-25 一汽解放汽车有限公司 Automotive suspension system and vehicle

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Application publication date: 20191210