CN217294177U - Front suspension of vehicle - Google Patents
Front suspension of vehicle Download PDFInfo
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- CN217294177U CN217294177U CN202221264187.2U CN202221264187U CN217294177U CN 217294177 U CN217294177 U CN 217294177U CN 202221264187 U CN202221264187 U CN 202221264187U CN 217294177 U CN217294177 U CN 217294177U
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- spring
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Abstract
The utility model discloses a vehicle front suspension, which comprises two groups of leaf spring suspensions respectively arranged above two ends of a front axle, wherein each leaf spring suspension comprises a leaf spring, a front bracket, a rear bracket, a thrust rod and a riding bolt; the two ends of the leaf spring are respectively supported in the front support and the rear support, an upper lug and a lower lug are respectively arranged on the inner top and the inner bottom of the front support, the leaf spring is clamped by the upper lug and the lower lug, an upper lug is arranged on the inner top of the rear support, an anti-jumping pin is arranged at the bottom of the rear support in a penetrating mode, the leaf spring is clamped by the upper lug and the anti-jumping pin, and the leaf spring is hooked by the anti-jumping pin. The utility model discloses an ingenious structural design makes the suspension limited in horizontal, vertical, has guaranteed the stability of vehicle.
Description
Technical Field
The utility model belongs to the technical field of the vehicle engineering and specifically relates to a front suspension system suitable for heavy haulage vehicle is related to.
Background
The suspension is a general name of all force transfer devices between a vehicle frame (or a vehicle body) and an axle (or a wheel). A typical suspension structure is composed of an elastic element, a guide mechanism, a damping device, and the like. The elastic element is in the form of a leaf spring, an air spring, a spiral spring, a torsion bar spring and the like. For heavy vehicles such as heavy trucks, cement mixer trucks, pump trucks and cranes, the plate spring suspension is a common form, has low price and high rigidity, but has large impact on the road surface in the driving process, and the vehicle also bears large impact, so that the service life of the whole vehicle is shortened, the comfort is poor, and the traditional plate spring suspension has heavy weight, increases the oil consumption and increases the cost. The load capacity of the front suspension of the existing plate spring is low and is below 16 tons.
In addition, the suspension is structurally divided into an independent suspension and a non-independent suspension, the front and rear limiting of the front and rear sliding type leaf spring of the non-independent suspension is not well controlled, the existing suspension is limited only by a thrust rod and a front and rear mounting bracket of the leaf spring, the limiting is not good, and the suspension is easy to separate during braking.
There is therefore a need for improvements in suspension systems in vehicles.
SUMMERY OF THE UTILITY MODEL
The utility model provides a vehicle front suspension, aiming at the defects in the prior art, the front suspension adopts a leaf spring form, the leaf spring adopts a balance slippage type, the limit is carried out on the longitudinal direction of the vehicle through a thrust rod and a front and a rear supports of the leaf spring, the limit is carried out on the transverse direction of the vehicle through the front and the rear supports of the leaf spring, the limit is carried out on the wheel through the front and the rear supports, a buffer block and a riding bolt when the vehicle jumps upwards, and the limit is carried out on the wheel through the front and the rear supports of the leaf spring and an anti-jumping pin when the wheel jumps downwards; in addition, a tube damper (HH type) is used for damping. The stable connection between the frame and the axle can be ensured through the structural layout of the suspension system, the stability of the vehicle is kept, and the dynamic load of the vehicle is increased to more than 35 tons.
The utility model adopts the technical scheme as follows: a vehicle front suspension is in a plate spring suspension form and comprises two groups of plate springs which are respectively arranged above two ends of a front axle, wherein each group of plate spring suspension comprises a plate spring, a front bracket, a rear bracket, a thrust rod and a riding bolt;
two ends of the steel plate spring are respectively supported in the front bracket and the rear bracket, and the front bracket and the rear bracket are connected to the frame;
the thrust rod is connected between the front bracket and the front axle;
the riding bolt strides over the steel plate spring and is connected to the front axle;
wherein,
the inner top and the inner bottom of the front bracket are respectively provided with an upper convex block and a lower convex block, and the steel plate spring is clamped between the upper convex block and the lower convex block;
an upper convex block is arranged at the inner top of the rear support, an anti-bouncing pin is arranged at the bottom of the rear support in a penetrating mode, and the steel plate spring is clamped between the upper convex block and the anti-bouncing pin.
Further: the steel plate spring is installed in a state that the head end of the vehicle is high and the tail end of the vehicle is low.
Further, the method comprises the following steps: the front bracket is nearly h-shaped with a back vertical plate, an upper seat plate, a front vertical plate and a lower seat plate forming a back cover, and the top and the bottom of the h-shaped hollow center are respectively provided with the upper convex block and the lower convex block;
the rear support is of an approximately h shape with an empty bottom formed by a back vertical plate, an upper seat plate and a front vertical plate, the upper convex block is arranged at the top of the h-shaped empty middle part, and the anti-jumping pin is arranged at the bottom of the h-shaped empty middle part.
Further, the method comprises the following steps: the steel plate spring is a laminated plate spring, a return bend is arranged on one plate spring, and the return bend is hooked on the anti-bouncing pin.
Further: the upper lug and the lower lug of the front bracket are arranged oppositely up and down and are arranged at one end close to the steel plate spring.
Further: the heads of all the lugs are circular arc.
Further, the method comprises the following steps: the thrust rod is connected to the front bracket and the front axle through a thrust rod shaft; wherein, a thrust rod shaft connected with the front bracket is connected on the front side position of the bottom mounting block of the front bracket through a bolt.
Further: two horse-riding bolts are arranged at the top of each group of steel plate springs and are arranged in a splayed mode.
The utility model takes a non-independent suspension leaf spring as a model, on the basis, supports are arranged in front of and behind the suspension, the leaf spring adopts a front and back balance sliding mode, and the front and back supports can limit the leaf spring in the longitudinal direction, the transverse direction and the vertical direction of the vehicle; not only sets up the after-poppet, still sets up on the after-poppet and prevents jumping the round pin, restricts the leaf spring slippage. The top of the plate spring is provided with a double-riding bolt for being connected with an axle, and the motion height of the suspension is limited. The thrust rod is connected between the front bracket and the axle, and the suspension is limited to move in the longitudinal direction of the vehicle through the front bracket. The top of the suspension is provided with a limiting block, the wheel is limited by the limiting block when jumping upwards, and the wheel is limited by the leaf spring and the anti-jumping pin when jumping downwards. The utility model discloses simple structure is reliable, and the suspension is all limited on the indulges and hangs, has guaranteed the stationarity that the vehicle travel.
Drawings
The drawings are only for purposes of illustrating particular embodiments and are not to be construed as limiting the invention.
Fig. 1 is an overall structure diagram of a front suspension system of the present invention;
FIG. 2 is a cross-sectional view of the connection of the leaf springs of the front suspension system with the front and rear brackets;
FIG. 3 is a structural view of a leaf spring;
FIG. 4 is a front bracket structure view;
FIG. 5 is a rear bracket structure view;
fig. 6 is a structure view of a saddle bolt plate spring holding plate.
Detailed Description
The invention will be described in detail with reference to the drawings, which form a part hereof, and with reference to the embodiments, which are used to explain the invention. However, it should be understood by those skilled in the art that the following examples are not intended to limit the technical solutions of the present invention, and all equivalent changes or modifications made in the spirit of the technical solutions of the present invention should be considered as falling within the protection scope of the present invention.
As shown in FIG. 1 and FIG. 2, the utility model provides a front suspension adopts the non-independent suspension form of leaf spring, include left and right two sets of the same suspensions on the axle, use the vehicle longitudinal axis to arrange as central symmetry on same front axle, common preceding axle is for supporting, and the frame is supported to the top. Each group of suspension comprises a steel plate spring 1, a front bracket 2, a rear bracket 3, a thrust rod assembly 4, a riding bolt 5, a limiting buffer block 6, a shock absorber 7 and the like.
As shown in figure 3, the leaf spring 1 adopts a laminated leaf spring structure, a plurality of leaf springs are stacked in a short-end and long-end mode, and the leaf spring is made of SUP9/9A materials and is higher in strength. The front bracket 2 and the rear bracket 3 are respectively arranged at the front end and the rear end of the steel plate spring 1. Two ends of the steel plate spring 1 are movably telescopic in the air of the front support and the rear support, and can properly slide in the front-rear direction. Further, the leaf spring 1 has a leaf spring with a bent-back end at one end connected to the rear bracket 3.
As shown in fig. 4, the front frame 2, as an important supporting part and a limiting part of the leaf spring, is of an overall "h" type seat structure, and includes a back plate 21, an upper plate 22, a front plate 23, and a lower plate 24. The upper half part of the back vertical plate 21 and the upper seat plate 22 form an L-shaped supporting surface for supporting a frame longitudinal beam, the frame longitudinal beam is of an I-beam structure, the back vertical plate 21 is connected with a longitudinal beam web plate through a bolt, the connection surface of the back vertical plate 21 is smooth, the technical requirements are met, and a recess is formed in the position of a non-connection surface for reducing weight; the upper seat plate 22 is provided with a groove 221 so that the longitudinal beam bottom plate is just clamped in the groove to ensure the stable connection of the frame.
The front vertical plate 23, the lower half part of the back vertical plate 21 and the lower seat plate 24 enclose to form a hollow, the end part of the steel plate spring extends into the hollow, an upper convex block 25 and a lower convex block 26 are respectively arranged in the upper part and the lower part of the hollow, and the upper convex block and the lower convex block are used for limiting the spring up and down. Further, the upper and lower cams 25, 26 are arranged opposite one another and close to the end of the spring to support the spring even if a certain jump occurs. The front vertical plate and the back vertical plate can limit the transverse swing of the spring, and the upper convex block and the lower convex block can limit the vertical bounce of the spring, which are characteristic designs. The bottom of the lower seat plate 24 is provided with a mounting block 27 for attachment of a thrust rod assembly. Still further, the heads of the upper and lower cams 25, 26 are arranged in a circular arc shape to accommodate the up and down swinging of the spring to reduce wear.
As shown in fig. 5, the rear bracket 3 is located at the other end of the leaf spring, opposite to the front bracket 2, and also functions to support and restrain the leaf spring, and the whole is also of an "h" type seat structure. The upper half part of the back vertical plate 31 and the upper seat plate 32 are combined into an L shape to support the frame longitudinal beam, and the back vertical plate 31, the upper seat plate 32 and the front vertical plate 33 are the same as the front bracket 2; the lower parts of the front vertical plate 33 and the back vertical plate 31 are enclosed to form a hollow space, and the end part of the steel plate spring extends into the hollow space. Unlike the front bracket 2, the rear bracket 3 is not provided with a lower seat plate, but is provided with an upper protrusion 34 at the free top, pin holes are provided on the lower portions of the front upright plate 33 and the back upright plate 31, an anti-bounce pin 35 (fig. 2) is inserted into the pin holes, the end of the spring is sandwiched between the upper protrusion 34 and the anti-bounce pin 35, and a leaf spring return hook (see fig. 3) is provided at one end of the leaf spring 1 to make the leaf spring return hook on the anti-bounce pin 35 (see fig. 2) to prevent the leaf spring from moving outward. Can be spacing to the spring on horizontal through the combination of preceding riser and back of the body board, can prevent through the combination of last lug and anti-bouncing pin that the spring from beating on vertical, can restrict the spring through anti-bouncing pin 35 on vertical simultaneously.
The utility model discloses both ends set up the support around leaf spring, can all provide support and spacing to the leaf spring both ends, when maintaining suspension stable in structure, still increased spacing to the suspension, make the vehicle be unlikely to take place excessively to heel and excessively beat. The front and rear brackets are all integrally cast.
And a group of thrust rod assemblies 4 are arranged at the bottom of each group of suspensions, each thrust rod assembly comprises one thrust rod and two thrust rod shafts, and two ends of each thrust rod are respectively connected to the two thrust rod shafts in a rotating mode. One end of the thrust rod is connected to the bottom of the front support, the other end of the thrust rod is connected to the axle, so that the angle can be adjusted along with the change of the suspension, and the suspension can be limited in the longitudinal direction of the vehicle through the thrust rod. The utility model discloses a characteristic is on the thrust bar is connected with fore-stock 2, see figure 1, and a thrust rod axle is balanced to be connected on the installation piece 27 of bedplate 24 bottom down through two bolts 43 (the bolt passes installation piece 27 and thrust rod axle simultaneously), and another thrust rod axle is installed on the axle, and the thrust bar both ends are switched respectively on two thrust rod axles. Different from the existing structure, the existing connection between the thrust rod shaft and the front bracket 2 is realized by arranging the thrust rod shaft at the inner side (close to the thrust rod side) of the mounting block 27, and the structure can improve the stress of the bolt, protect the bolt, and ensure that the bolt only bears the tension and does not bear the bending moment. Otherwise, because the thrust rod is inclined, the bolt is easily twisted off when the thrust rod swings and acts on the coupling shaft. It is also undesirable to wear the thrust rod shaft on the mounting block 27, and damage to the mounting block 27 will result in a high cost of replacing the entire front bracket; and the utility model discloses with the thrust rod axle setting in the outside of installation piece 27, make bolt rod portion keep away from the thrust rod, can reduce the probability that the bolt was twisted off greatly like this, it is very effective through experimental verification.
As shown in fig. 1 and 2, the utility model discloses set up two bolts 5 on horse at leaf spring's top, 5 screw rods on horse are perpendicular downwards, and the lower extreme is connected and is restricted the spring and beat on the axle, and two bolts on horse bilateral symmetry arrange can maintain leaf spring's equilibrium. Furthermore, two bolts 5 on horse are arranged in a splayed shape, thus meeting the upward tilting characteristics of the two ends of the spring and enhancing the connecting force. Still further, a plate spring pressing plate 8 is arranged on the top of the steel plate spring, as shown in fig. 6, for cushioning the riding bolt, the riding bolt 5 rides on the plate spring pressing plate to reduce the abrasion of the spring, and two grooves matched with the bolts are arranged on the plate spring pressing plate 8, for placing the riding bolt, so that the bolts can be prevented from sliding. Through setting up riding bolt and leaf spring clamp plate, can firmly link leaf spring and axle together.
The utility model discloses still hang spacing buffer block 6 above leaf spring, prevent that the spring from jumping upwards and impacting the frame, as shown in fig. 1, spacing buffer block 6 upper portion is "L" type spacing seat, connect on the frame longeron, the lower part is the buffer block, the buffer block sets up under the frame, space has been saved, and the power directly acts on the longeron, can protect the frame well simultaneously, and, the material of buffer block is rubber material (phenolic resin), and is elastic, all is not damaged to frame and leaf spring, also is lightweight design simultaneously; the bottom of the buffer block is inclined, the angle of elevation is 3 degrees as the whole suspension, and the front part is high and the rear part is low. The utility model discloses the purpose that sets up spacing buffer block is the vertical height of restriction leaf spring.
The utility model discloses still respectively set up two shock absorbers in every group suspension outside and guarantee the suspension stability when vertical beating, further strengthen the damping effect.
The whole set of front suspension system adopts a plate spring dependent suspension structure, and the plate spring can bear larger torsion by adopting a balanced sliding mode. The front suspension limiting conditions are as follows:
(1) x-direction (vehicle longitudinal) limit: the limit is realized through a thrust rod, a steel plate spring, a front support and a rear support of the steel plate spring;
(2) y-direction (vehicle lateral direction) limit: limiting through a front support and a rear support of the steel plate spring;
(3) limiting in the Z direction (vertical direction of the vehicle): when the wheel jumps up, the limit is carried out through a limit buffer block; when the wheel jumps down, the wheel is limited by the front support, the rear support and the anti-jumping pin.
Claims (8)
1. The utility model provides a vehicle front suspension, is leaf spring suspension form which characterized in that:
the suspension device comprises two groups of leaf spring suspensions which are respectively arranged above two ends of a front axle, wherein each group of leaf spring suspensions comprises a leaf spring, a front bracket, a rear bracket, a thrust rod and a riding bolt;
two ends of the steel plate spring are respectively supported in the front bracket and the rear bracket, and the front bracket and the rear bracket are connected to the frame;
the thrust rod is connected between the front bracket and the front axle;
the riding bolt spans the steel plate spring and is connected to a front axle;
wherein,
the inner top and the inner bottom of the front bracket are respectively provided with an upper convex block and a lower convex block, and the steel plate spring is clamped between the upper convex block and the lower convex block;
the inner top of the rear support is provided with an upper convex block, the bottom of the rear support is provided with an anti-bouncing pin in a penetrating mode, and the steel plate spring is clamped between the upper convex block and the anti-bouncing pin.
2. The vehicle front suspension of claim 1, characterized in that: the steel plate spring is installed in a state that the head end is high and the tail end is low.
3. The vehicle front suspension of claim 1, characterized in that:
the front bracket is nearly h-shaped with a back vertical plate, an upper seat plate, a front vertical plate and a lower seat plate forming a back cover, and the top and the bottom of the h-shaped hollow center are respectively provided with the upper convex block and the lower convex block;
the rear support is of an approximately h shape with an empty bottom formed by a back vertical plate, an upper seat plate and a front vertical plate, the upper convex block is arranged at the top of the h-shaped empty middle part, and the anti-jumping pin is arranged at the bottom of the h-shaped empty middle part.
4. Vehicle front suspension according to claim 1 or 3, characterized in that:
the steel plate spring is a laminated plate spring, a return bend is arranged on one plate spring, and the return bend is hooked on the anti-bouncing pin.
5. Vehicle front suspension according to claim 1 or 3, characterized in that: the upper lug and the lower lug of the front bracket are arranged oppositely up and down and are arranged at one end close to the steel plate spring.
6. Vehicle front suspension according to claim 1 or 3, characterized in that: the heads of all the lugs are circular arc.
7. The vehicle front suspension of claim 1, characterized in that: the thrust rod is connected to the front bracket and the front axle through a thrust rod shaft; wherein, a thrust rod shaft connected with the front bracket is connected with the front position of the mounting block at the bottom of the front bracket through a bolt.
8. The vehicle front suspension of claim 1, characterized in that: two horse-riding bolts are arranged at the top of each group of steel plate springs and are arranged in a splayed mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221264187.2U CN217294177U (en) | 2022-05-25 | 2022-05-25 | Front suspension of vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221264187.2U CN217294177U (en) | 2022-05-25 | 2022-05-25 | Front suspension of vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217294177U true CN217294177U (en) | 2022-08-26 |
Family
ID=82919193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221264187.2U Active CN217294177U (en) | 2022-05-25 | 2022-05-25 | Front suspension of vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217294177U (en) |
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2022
- 2022-05-25 CN CN202221264187.2U patent/CN217294177U/en active Active
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