CN222329408U - Leaf spring suspension - Google Patents

Abstract

The utility model discloses a leaf spring suspension, which comprises a front axle and a frame longitudinal beam, wherein a leaf spring assembly at least comprises a leaf spring, the middle part of the leaf spring is arranged on the front axle, two ends of the leaf spring are connected with the frame longitudinal beam, and a shock absorber assembly comprises a shock absorber and a shock absorber support, the first end of the shock absorber is hinged to the shock absorber support, the shock absorber support is arranged on the frame longitudinal beam, a shock absorber rolling lug is formed on the leaf spring, and the second end of the shock absorber is hinged to the shock absorber rolling lug. According to the leaf spring suspension, the shock absorber winding lug is arranged on the leaf spring, so that the shock absorber can be directly hinged on the shock absorber winding lug of the leaf spring through the hinge shaft, a mounting seat is not required to be fixed on the leaf spring, connection with the shock absorber can be achieved, and the mounting cost is reduced.

Description

Leaf spring suspension

Technical Field

The utility model relates to the technical field of mining dump trucks, in particular to a leaf spring suspension.

Background

The existing front suspension structure of the mining dumper can be divided into a suspension oil cylinder structure, a plurality of connecting rods are matched to bear longitudinal and transverse forces through buffering and damping of an oil-gas spring, and a leaf spring structure, wherein the leaf spring structure is used for bearing gravity, longitudinal force and transverse force through a leaf spring and a leaf spring support arranged on a frame.

In the prior art, the leaf spring structure is applied more, and the leaf spring structure is particularly divided into two main stream arrangement structures, namely, two ends of the leaf spring are provided with rolling lug structures, the rolling lug structures at the two ends are connected to a leaf spring support, and the leaf spring support is fixed on a frame longitudinal beam. The other is that both ends of the leaf spring are in sliding fit with the leaf spring support. In general, in order to achieve a cushioning effect under heavy load, a shock absorber is usually provided between a frame rail and a leaf spring to avoid hard collision.

One end of the shock absorber is hinged to the frame longitudinal beam, the other end of the shock absorber is hinged to the leaf spring, and the two ends of the shock absorber are installed through the installation seat, so that the installation cost is high.

Therefore, how to reduce the installation cost of the damper is a technical problem that a person skilled in the art needs to solve at present.

Disclosure of utility model

Accordingly, an object of the present utility model is to provide a leaf spring suspension for reducing the installation cost of a shock absorber.

In order to achieve the above object, the present utility model provides the following technical solutions:

A leaf spring suspension comprising:

Front axles and frame rails;

The steel plate spring assembly at least comprises a steel plate spring, the middle part of the steel plate spring is arranged on the front axle, and two ends of the steel plate spring are connected with the frame longitudinal beam;

The shock absorber assembly comprises a shock absorber and a shock absorber support, wherein the first end of the shock absorber is hinged to the shock absorber support, the shock absorber support is installed on the frame longitudinal beam, the leaf spring is provided with a shock absorber winding lug, and the second end of the shock absorber is hinged to the shock absorber winding lug.

Optionally, in the above leaf spring suspension, the hinge center of the first end of the damper is perpendicular to the hinge center of the second end of the damper.

Optionally, in the above leaf spring suspension, the leaf spring assembly further includes a first leaf spring mount and a second leaf spring mount mounted to the frame rail;

And two ends of the leaf spring are respectively connected with the frame longitudinal beam through the first leaf spring mounting seat and the second leaf spring mounting seat.

Optionally, in the leaf spring suspension, a leaf spring eye is formed at a first end of the leaf spring, and a limit bending part is formed at a second end of the leaf spring;

The leaf spring eye pass through the leaf spring hinge connect in first leaf spring mount pad, the second leaf spring mount pad has the guide chute, leaf spring the second end with guide chute sliding fit, and pass through spacing bending portion is spacing.

Optionally, in the above leaf spring suspension, the suspension further comprises a steering cylinder assembly, wherein the steering cylinder assembly comprises a steering cylinder and a steering cylinder support installed on the frame longitudinal beam, one end of the steering cylinder is hinged with the steering cylinder support, and the other end of the steering cylinder is hinged with a steering arm on the front axle.

Alternatively, in the above leaf spring suspension, the middle portion of the leaf spring is provided on the front axle by a saddle bolt.

Optionally, in the above leaf spring suspension, the leaf spring suspension further includes a shock absorbing assembly disposed on the frame rail, the shock absorbing assembly includes a shock absorbing member mounting support and a shock absorbing member, and the shock absorbing member is mounted on the shock absorbing member mounting support and faces the leaf spring.

Optionally, in the above leaf spring suspension, the damper mount includes:

The buffer piece mounting plate is mounted on the buffer piece mounting plate;

The side beam mounting plate is provided with a side beam side mounting wall which is used for being attached to the side surface of the side beam of the frame and a side beam bottom mounting wall which is attached to the bottom surface of the side beam of the frame, and the side beam side mounting wall is provided with a fastening hole for mounting a fastening piece;

and the reinforcing connecting plates are respectively connected with the buffer piece mounting plate and the longitudinal beam mounting plate.

Optionally, in the above leaf spring suspension, the side rail mounting wall and the side rail bottom mounting wall are perpendicular, and/or,

The side mounting wall of the longitudinal beam and the bottom mounting wall of the longitudinal beam are in transitional connection through a transitional plate, the transitional plate is an arc-shaped plate, and/or,

The bumper mounting plates are arranged parallel to and spaced apart from the stringer bottom mounting walls and/or,

The reinforcing connection plate is provided with a connection joint surface which is attached to the side mounting wall of the longitudinal beam and the bottom mounting wall of the longitudinal beam, and the connection joint surface is attached to one side of the side mounting wall of the longitudinal beam and the bottom mounting wall of the longitudinal beam, which is opposite to the longitudinal beam of the frame, and/or,

The width of the reinforcing connection plate gradually increases from the distance from the buffer mounting plate to the direction close to the buffer mounting plate.

Optionally, in the above leaf spring suspension, the reinforcing connection plates are two and are respectively connected to two side edges of the stringer mounting plate;

and supporting ribs are arranged between the two reinforcing connecting plates and are respectively connected with the longitudinal beam mounting plate and the buffer piece mounting plate.

According to the leaf spring suspension provided by the utility model, the shock absorber assembly is arranged between the frame longitudinal beam and the leaf spring assembly, so that longitudinal jolt in running of a vehicle is effectively reduced, and the comfort in a cab above the front suspension is improved. In order to facilitate the installation of the damper assembly, the damper is hinged on the damper winding lug of the leaf spring directly through the hinge shaft by arranging the damper winding lug on the leaf spring, so that the damper can be connected with the damper without fixing an installation seat on the leaf spring, and the installation cost is reduced.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a leaf spring suspension according to an embodiment of the present utility model at an angle;

FIG. 2 is a schematic view of a leaf spring suspension according to an embodiment of the present utility model at another angle;

FIG. 3 is a front view of a leaf spring suspension disclosed in an embodiment of the present utility model;

FIG. 4 is a cross-sectional view of a leaf spring suspension at a leaf spring assembly as disclosed in an embodiment of the present utility model;

FIG. 5 is a top view of a leaf spring suspension disclosed in an embodiment of the present utility model;

FIG. 6 is a schematic illustration of a cushioning vibration reduction assembly mounted to a frame rail in accordance with an embodiment of the present utility model;

FIG. 7 is a side view of a cushion damper assembly according to an embodiment of the present utility model mounted to a frame rail;

FIG. 8 is a schematic view of a buffer mounting support at an angle according to an embodiment of the present utility model;

FIG. 9 is a top view of a bumper mount at another angle as disclosed in an embodiment of the present utility model;

FIG. 10 is a front view of a bumper mount according to an embodiment of the present disclosure;

fig. 11 is a side view of a bumper mount according to an embodiment of the present disclosure.

The meaning of the individual reference numerals in the figures is as follows:

100-cushioning vibration reduction assemblies, 110-cushioning member mounting brackets, 111-longitudinal beam mounting plates, 1111-fastening holes, 1112-longitudinal beam side mounting walls, 1113-longitudinal beam bottom mounting walls, 1114-transition plates, 112-reinforcing connection plates, 113-cushioning member mounting plates, 114-supporting ribs and 120-cushioning members;

200-frame rails;

300-leaf spring components, 310-leaf springs, 311-leaf spring lugs, 312-limit bending parts, 313-shock absorber lugs, 320-first leaf spring mounting seats, 330-second leaf spring mounting seats and 340-saddle bolts;

400-front axle;

500-damper assembly, 510-damper, 520-damper mount;

600-steering cylinder assembly, 610-steering cylinder and 620-steering cylinder support.

Detailed Description

The core of the utility model is to provide a leaf spring suspension to reduce the installation cost of the shock absorber.

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1 to 5, an embodiment of the present utility model discloses a leaf spring suspension that can be used for a mining dump truck. In this embodiment, the leaf spring suspension includes a front axle 400, a frame rail 200, a leaf spring assembly 300, and a shock absorber assembly 500.

The leaf spring assembly 300 at least includes a leaf spring 310, wherein the middle portion of the leaf spring 310 is disposed on the front axle 400, and both ends of the leaf spring are connected to the frame rail 200. Frame rail 200 is mounted above front axle 400 under the support of leaf springs 310. When the vehicle is in a bumpy road condition, the leaf spring 310 can filter out part of vibration, so that the comfort of the vehicle in a bumpy road surface is ensured.

To further enhance the shock absorbing effect, the leaf spring suspension may also be provided with a shock absorber assembly 500, the shock absorber assembly 500 comprising a shock absorber 510 and a shock absorber mount 520, a first end of the shock absorber 510 being hinged to the shock absorber mount 520, the shock absorber mount 520 being mounted to the frame rail 200. Since shock absorber 510 receives the impact of the vehicle, shock absorber mount 520 and the junction between shock absorber mount 520 and shock absorber 510 are prone to fracture and deformation. To facilitate replacement of shock absorber support 520 after deformation or breakage, shock absorber support 520 in this embodiment may be mounted to frame rail 200 by fasteners.

As shown in fig. 4, the leaf spring 310 is formed with a damper coil 313, and a second end of the damper 510 is hinged to the damper coil 313. Specifically, the end of the lowermost leaf spring 310 of the leaf spring forms a damper coil 313 by winding so as to be hinged to the second end of the damper 510 by a hinge shaft. In this embodiment, the two ends of the shock absorber 510 are all connected in a hinged manner, so that the upper and lower ends of the shock absorber 510 can rotate freely around the corresponding hinge shafts, and thus, when the front axle 400 and the frame rail 200 are displaced relatively in the horizontal direction, the shock absorber 510 can swing along the corresponding hinge shafts to adapt.

The plate spring suspension disclosed by the embodiment of the utility model effectively reduces longitudinal jolt in the running process of the vehicle and improves the comfort in a cab above the front suspension by adding the shock absorber assembly 500. In addition, by providing the damper coil 313 on the leaf spring 310, the damper 510 can be directly hinged on the damper coil 313 of the leaf spring 310 through the hinge shaft, and the connection with the damper 510 can be realized without fixing the mounting seat on the leaf spring 310, thereby reducing the mounting cost.

In this embodiment, the hinge center of the first end of the damper 510 is perpendicular to the hinge center of the second end of the damper 510. For example, the axial direction of the hinge shaft at the first end of shock absorber 510 is parallel to the extending direction of frame rail 200, and the axial direction of the hinge shaft at the second end of shock absorber 510 is perpendicular to the extending direction of frame rail 200. So configured, the degree of freedom is provided by the articulation of the first end of the shock absorber 510 when the vehicle body is displaced in the left-right direction relative to the front axle 400, and the degree of freedom is provided by the articulation of the second end of the shock absorber 510 when the vehicle body is displaced in the front-rear direction relative to the front axle 400.

In one embodiment of the present utility model, leaf spring assembly 300 further includes a first leaf spring mount 320 and a second leaf spring mount 330 mounted to frame rail 200, with the ends of leaf spring 310 being connected to frame rail 200 by first leaf spring mount 320 and second leaf spring mount 330, respectively. The first leaf spring mount 320 and the second leaf spring mount 330 may each be secured to the frame rail 200 by fasteners to facilitate replacement of the first leaf spring mount 320 and the second leaf spring mount 330 after they are damaged.

As shown in fig. 4, further, a leaf spring eye 311 is formed at a first end of the leaf spring 310, and a limit bending portion 312 is formed at a second end of the leaf spring 310. The leaf spring eye 311 is hinged to the first leaf spring mounting seat 320 through a leaf spring hinge shaft, the second leaf spring mounting seat 330 is provided with a guide chute, and the second end of the leaf spring 310 is in sliding fit with the guide chute and is limited through a limiting bending part 312. It should be noted that, the limiting bending portion 312 is located at the outer side of the guide chute, when the leaf spring 310 deforms, the second end of the leaf spring 310 slides relatively to the guide chute, and the first end of the leaf spring 310 rotates around the leaf spring hinge shaft, so that the leaf spring 310 can deform freely, and the limiting bending portion 312 can prevent the second end of the leaf spring 310 from separating from the guide chute.

In one embodiment of the present utility model, the leaf spring suspension may further include a steering cylinder assembly 600, the steering cylinder assembly 600 including a steering cylinder 610 and a steering cylinder mount 620 mounted to the frame rail 200, one end of the steering cylinder 610 being hinged to the steering cylinder mount 620 and the other end being hinged to a steering arm on the front axle 400. The steering cylinder assemblies 600 are symmetrically arranged two, one being installed at each of the left and right sides of the front axle 400, to assist the vehicle in steering.

Further, the middle portion of the leaf spring 310 is provided on the front axle 400 by a saddle bolt 340. The top of the leaf spring 310 may be provided with an auxiliary arcuate block against which the top arcuate segment of the saddle bolt 340 is crimped to provide a more uniform preload on each leaf spring of the leaf spring 310.

As shown in fig. 6 and 7, in one embodiment of the present utility model, the leaf spring suspension may further include a cushion damper assembly 100 provided on the frame rail 200, the cushion damper assembly 100 including a cushion mounting bracket 110 and a cushion 120, the cushion 120 being mounted to the cushion mounting bracket 110 and disposed facing the leaf spring 310. It should be noted that, only one leaf spring 310 may be correspondingly provided with one cushioning assembly 100, so as to reduce the cost.

Further, referring to fig. 8-11, bumper mounting bracket 110 is used to mount bumper 120, providing a mounting base and support for bumper 120 such that bumper 120 can be mounted to frame rail 200 via bumper mounting bracket 110.

The bumper mounting bracket 110 disclosed in the embodiment of the present utility model includes a bumper mounting plate 113, a rail mounting plate 111, and a reinforcing connection plate 112. The buffer mounting plate 113 is used for mounting the buffer 120, specifically, the buffer mounting plate 113 has a plate-shaped structure, which has a first side surface and a second side surface opposite to each other, the buffer 120 is mounted on the first side surface of the buffer mounting plate 113, in a normal working state, the first side surface of the buffer mounting plate 113 is a lower surface, and the second side surface of the buffer mounting plate 113 is an upper surface. The buffer 120 may be a buffer rubber pad, and may be specifically fixed on the buffer mounting plate 113 by a fastener, so that the buffer 120 may be replaced. The leaf spring contacts with the cushioning member 120 for a long time, so that the cushioning member 120 is easy to damage, and the cushioning effect is lost, and the cushioning member 120 is easy to detach due to the fact that the cushioning member 120 is installed through the fastener, so that the cushioning member 120 is convenient to replace.

The side member mounting plate 111 has a side member side mounting wall 1112 for attaching to the side surface of the side member 200 and a side member bottom mounting wall 1113 for attaching to the bottom surface of the side member 200. It can be seen that in this embodiment, the rail mounting plate 111 is distinguished from prior art rail mounting plates, which are attached to at least the side and bottom surfaces of the frame rail 200.

The side mounting walls 1112 of the side members are provided with fastening holes 1111 for fastening fasteners, and the number, positions and arrangement of the fastening holes 1111 can be designed as required by those skilled in the art to carry impact loads while satisfying the installation.

The reinforcing connection plates 112 are connected to the bumper mounting plates 113 and the rail mounting plates 111, respectively, to achieve connection of the bumper mounting plates 113 and the rail mounting plates 111. The reinforcing connection plate 112 is connected to the second side surface of the damper mounting plate 113.

The bumper mounting bracket 110 of the present embodiment is configured such that, after being mounted to the frame rail 200, the side surface of the rail mounting plate 111 (i.e., the rail side mounting wall 1112) is connected to the side surface of the frame rail 200 by fasteners passing through the fastening holes 1111, and the bottom of the rail mounting plate 111 (i.e., the rail bottom mounting wall 1113) is in contact with the bottom of the frame rail 200. When the vehicle is jumping up and down and the leaf spring is in contact with the cushion member, the impact force is transmitted to the side surfaces and the bottom surface of the frame rail 200 through the rail side mounting wall 1112 and the rail bottom mounting wall 1113 at the same time after being buffered by the cushion member. The utility model increases the bottom support of the frame rail 200 on the basis of the prior art, has more reasonable stress compared with the bearing only through the side surface of the frame rail 200, improves the reliability of the buffer mounting support 110, and reduces the risk of deformation or tearing.

In the present embodiment, the side rail mounting wall 1112 and the side rail bottom mounting wall 1113 are connected as a unitary structure, and the side rail mounting wall 1112 and the side rail bottom mounting wall 1113 are perpendicular. The side rail mounting wall 1112 and the side rail bottom mounting wall 1113 are connected into an integral structure, and may be directly bent into the shape shown in fig. 6 by a plate member through a bending process, or may be connected by two plate members to form the side rail mounting wall 1112 and the side rail bottom mounting wall 1113 which are perpendicular to each other, wherein the connection manner is not limited to welding, fastening connection, and the like.

In order to reduce stress concentration generated at the connection portion of the side rail mounting wall 1112 and the side rail bottom mounting wall 1113, in this embodiment, the side rail mounting wall 1112 and the side rail bottom mounting wall 1113 are connected in transition by a transition plate 1114, and the transition plate 1114 is an arc plate. That is, in this embodiment, the side rail mounting wall 1112 gradually transitions to the side rail bottom mounting wall 1113 through the transition plate 1114 having an arc-shaped structure, so as to avoid forming a sharp corner therebetween, and when a large impact is applied, the side rail mounting wall breaks at the sharp corner.

As shown in fig. 8, for ease of processing, the side rail mounting wall 1112 and the side rail bottom mounting wall 1113 may each be rectangular. For ease of understanding, the dimension in the extending direction of the frame rail 200 is defined as the extending direction dimension, and the dimension in the other direction (i.e., the direction in which the rail side mounting wall 1112 and the rail bottom mounting wall 1113 are perpendicular to the extending direction of the frame rail 200) is defined as the extending direction dimension. I.e., the extension direction of the side rail mounting wall 1112 may be understood as the direction extending outwardly in the vertical direction, and the extension direction of the side rail bottom mounting wall 1113 may be understood as the direction extending outwardly in the horizontal direction.

The extension direction dimension of the side rail mounting wall 1112 is equal to the extension direction dimension of the side rail bottom mounting wall 1113, that is, the side rail mounting plate 111 may be bent by a rectangular plate material to form the side rail mounting wall 1112 and the side rail bottom mounting wall 1113.

The extension direction dimension of the side rail mounting wall 1112 is larger than the extension direction dimension of the side rail bottom mounting wall 1113, i.e., a larger area is reserved for the side rail mounting wall 1112 when bending. The side rail mounting wall 1112 and the side rail bottom mounting wall 1113 are rectangular plates having two dimensions such as a width of a plate material and a length of the plate material, irrespective of the dimension of the thickness. The extension direction dimension of the side rail side mounting wall 1112 and the side rail bottom mounting wall 1113 may be a width dimension or a length dimension.

As shown in fig. 8, the extension direction of the side member mounting wall 1112 is the longitudinal direction, and the extension direction thereof is the width direction, and the extension direction of the side member bottom mounting wall 1113 is the longitudinal direction, and the extension direction thereof is the width direction. If the dimension of the side frame mounting wall 1112 in the extension direction is larger than the dimension in the extension direction, the extension direction of the side frame mounting wall 1112 is the width direction, and the extension direction thereof is the length direction.

In this embodiment, since the side member side mounting wall 1112 has both fastening function with the frame rail 200, the dimension of the side member side mounting wall 1112 in the extension direction needs to be designed to be large to facilitate the arrangement of the plurality of fastening points, while the side member bottom mounting wall 1113 only needs to provide the supporting force, as long as the force transmission can be achieved, the dimension in the extension direction does not need to be designed to be large.

In one embodiment of the utility model, as shown in FIG. 11, the bumper mounting plates 113 are arranged parallel to and spaced apart from the rail bottom mounting wall 1113. The distance between the bumper mounting plate 113 and the rail bottom mounting wall 1113 is controlled by the reinforcing web 112. Because the frame rail 200 and the leaf spring 310 are staggered in the vertical direction, the buffer mounting plate 113 and the rail mounting plate 111 are designed to be two pieces, and the connection of the buffer mounting plate 113 and the rail mounting plate 111 is realized through the reinforcing connection plate 112, so that the buffer mounting plate 113 can have a larger area to facilitate the arrangement of the buffer 120, and the rail bottom mounting wall 1113 only needs to transmit impact force, and does not need to be designed with a larger area. In addition, the buffer mounting plate 113 is spaced from the side member bottom mounting wall 1113 by a distance, so that the reinforcing connection plate 112 has a larger contact area with the buffer mounting plate 113 and the side member bottom mounting wall 1113, respectively, to improve the connection reliability and facilitate the force transmission.

The reinforcing connection plate 112 has a connection bonding surface bonded to the side rail mounting wall 1112 and the side rail bottom mounting wall 1113, and the connection bonding surface is bonded to the side rail side mounting wall 1112 and the side rail bottom mounting wall 1113 on the side opposite to the frame rail 200. That is, in the present embodiment, the side surface of the reinforcing connection plate 112 facing the side member mounting plate 111 matches the shape of the side member mounting plate 111 so that the connection bonding surface can be bonded to the side member side mounting wall 1112 and the side member bottom mounting wall 1113. By the arrangement, the contact area between the reinforcing connection plate 112 and the longitudinal beam mounting plate 111 can be increased, and the connection stability can be improved.

In the present embodiment, the width of the reinforcing connection plate 112 gradually increases from the distance from the bumper mounting plate 113 to the distance from the bumper mounting plate 113. Since the cushion mounting plate 113 is a main stress portion, the width of the side of the reinforcing connection plate 112 facing the cushion mounting plate 113 is large, and other portions do not need to be so large in order to reduce the overall weight.

As shown in fig. 9, the reinforcing connection plates 112 are two and connected to both side edges of the side member mounting plate 111, respectively. A support rib 114 is provided between the two reinforcing connection plates 112, and the support rib 114 is connected to the side member mounting plate 111 and the buffer mounting plate 113, respectively. The supporting ribs 114 may be provided or not, the volume of the supporting ribs 114 is smaller than that of the reinforcing connection plate 112, the number of the supporting ribs 114 can be adjusted according to requirements, and one supporting rib or a plurality of supporting ribs or no supporting ribs can be provided.

It should be noted that, in the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described as different from other embodiments, and identical and similar parts between the embodiments are all enough to be referred to each other.

As used in the specification and in the claims, the terms "a," "an," "the," and/or "the" are not specific to a singular, but may include a plurality, unless the context clearly dictates otherwise. In general, the terms "comprises" and "comprising" merely indicate that the steps and elements are explicitly identified, and they do not constitute an exclusive list, as other steps or elements may be included in a method or apparatus. The inclusion of an element as defined by the phrase "comprising one does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises an element.

The terms "first" and "second" are used below for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature.

The principles and embodiments of the present utility model have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the core concepts of the utility model. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the utility model can be made without departing from the principles of the utility model and these modifications and adaptations are intended to be within the scope of the utility model as defined in the following claims.

Claims (10)

1. A leaf spring suspension comprising:

a front axle (400) and a frame rail (200);

The steel plate spring assembly (300) at least comprises a steel plate spring (310), wherein the middle part of the steel plate spring (310) is arranged on the front axle (400), and two ends of the steel plate spring are connected with the frame longitudinal beam (200);

shock absorber assembly (500) including shock absorber (510) and shock absorber support (520), shock absorber (510) first end articulated in shock absorber support (520), shock absorber support (520) install in frame rail (200), leaf spring (310) are formed with shock absorber ear (313), shock absorber (510) second end with shock absorber ear (313) are articulated.

2. The leaf spring suspension according to claim 1, characterized in that the hinge center of the first end of the damper (510) is perpendicular to the hinge center of the second end of the damper (510).

3. The leaf spring suspension of claim 1 wherein the leaf spring assembly (300) further comprises a first leaf spring mount (320) and a second leaf spring mount (330) mounted to the frame rail (200);

Both ends of the leaf spring (310) are connected to the frame rail (200) through the first leaf spring mount (320) and the second leaf spring mount (330), respectively.

4. A leaf spring suspension according to claim 3, characterized in that a leaf spring eye (311) is formed at a first end of the leaf spring (310), and a limit bend (312) is formed at a second end of the leaf spring (310);

The leaf spring eye (311) pass through the leaf spring hinge connect in first leaf spring mount pad (320), second leaf spring mount pad (330) have the direction spout, the second end of leaf spring (310) with direction spout sliding fit, and pass through spacing bending portion (312) is spacing.

5. The leaf spring suspension according to claim 1, further comprising a steering cylinder assembly (600), the steering cylinder assembly (600) comprising a steering cylinder (610) and a steering cylinder mount (620) mounted to the frame rail (200), the steering cylinder (610) being hinged at one end to the steering cylinder mount (620) and at the other end to a steering arm on the front axle (400).

6. The leaf spring suspension according to claim 1, characterized in that a middle portion of the leaf spring (310) is provided on the front axle (400) by a saddle bolt (340).

7. The leaf spring suspension according to any one of claims 1 to 6, further comprising a cushion damper assembly (100) provided on the frame rail (200), the cushion damper assembly (100) comprising a cushion mount (110) and a cushion (120), the cushion (120) being mounted to the cushion mount (110) and provided facing the leaf spring (310).

8. The leaf spring suspension according to claim 7, wherein the bumper mount (110) comprises:

A buffer mounting plate (113), wherein the buffer (120) is mounted on the buffer mounting plate (113);

A side member mounting plate (111) having a side member side mounting wall (1112) for attaching to a side surface of a side member (200) of a vehicle frame and a side member bottom mounting wall (1113) for attaching to a bottom surface of the side member (200), wherein a fastening hole (1111) for mounting a fastener is formed in the side member side mounting wall (1112);

And a reinforcing connection plate (112) connected to the bumper mounting plate (113) and the side member mounting plate (111), respectively.

9. The leaf spring suspension according to claim 8, characterized in that the side rail mounting wall (1112) and the side rail bottom mounting wall (1113) are perpendicular and/or,

The side mounting wall (1112) and the bottom mounting wall (1113) are connected in a transitional way through a transitional plate (1114), the transitional plate (1114) is an arc-shaped plate, and/or,

The bumper mounting plates (113) are arranged parallel to and spaced apart from the side sill bottom mounting wall (1113), and/or,

The reinforcing connection plate (112) has a connection contact surface which is bonded to the side rail mounting wall (1112) and the side rail bottom mounting wall (1113) and which is bonded to the side rail side mounting wall (1112) and the side rail bottom mounting wall (1113) on the side facing away from the frame rail (200), and/or,

The width of the reinforcing connection plate (112) gradually increases from the direction away from the bumper mounting plate (113) to the direction close to the bumper mounting plate (113).

10. The leaf spring suspension according to claim 8, characterized in that the reinforcing connection plates (112) are two and are connected to both side edges of the side member mounting plate (111), respectively;

And supporting ribs (114) are arranged between the two reinforcing connecting plates (112), and the supporting ribs (114) are respectively connected with the longitudinal beam mounting plates (111) and the buffer piece mounting plates (113).