Damping front axle assembly for a mower and a mower

Abstract

The utility model discloses a shock attenuation front axle assembly for mower, including front axle and front axle mounting bracket, the front axle is installed in the front axle mounting bracket with the mode of two ends swing up and down around a center axis, and the shock attenuation cooperation between front axle and front axle mounting bracket is located on the both sides of center axis, the complex spring and damper structure are saved in the application, and the good shock attenuation effect is realized in the compact space, and the simple structure can guarantee that front axle can rotate around the frame, and the front and rear will not appear the shift, and have the shock attenuation effect under the condition that the space occupies little, improve the stability of mower driving and operation comfort.

Description

Technical Field

[0001] This utility model relates to the field of front axle technology, and in particular to a shock-absorbing front axle assembly for a lawnmower and the lawnmower itself. Background Technology

[0002] In lawn mowers, lithium-ion zero-turn type is commonly used, meaning that the overall power is driven by the rear wheels, the front wheels are not powered, and the front wheel mainly provides support. Among them, the front axle connected to the front wheels is an indispensable structure. As a key support structure at the front of the mower, the front axle bears the weight of the cutting system, drive components and part of the machine body, ensuring the stability of the whole machine structure and the reliability of operation. It can transmit the power output from the rear wheel drive to the front wheels and provide mounting positions for the cutting blades and other working parts.

[0003] In existing technologies, front axles mainly have two structures. One is welded to the frame and cannot move independently. This structure is simple and the technology is mature, but when a single wheel goes uphill or over a pothole, the frame needs to twist to resist deformation, which can lead to unstable driving. The other is connected to the frame through a rotating joint and a shock absorber is added. This allows the front axle to rotate around the frame at a certain angle, improving driving stability and comfort. However, the springs and dampers included in the shock absorber result in a large space occupation and a more complex structure.

[0004] Therefore, there is an urgent need to develop a front axle that has a simple structure, can ensure that the front axle can rotate around the vehicle frame without swaying back and forth, and has a shock absorption effect while occupying little space, thereby improving driving stability and comfort. Utility Model Content

[0005] In view of this, the purpose of this utility model is to provide a shock-absorbing front axle assembly for a lawnmower and a lawnmower in general. The structure is simple, and it can ensure that the front axle can rotate around the frame without back-and-forth movement. It also has a shock-absorbing effect while occupying little space, thus improving driving stability and comfort.

[0006] The present invention relates to a shock-absorbing front axle assembly for a lawnmower, comprising a front axle and a front axle mounting frame. The front axle is mounted on the front axle mounting frame in such a way that both ends can swing up and down around a central axis, and is located on both sides of the central axis to provide shock absorption between the front axle and the front axle mounting frame.

[0007] Furthermore, the aforementioned damping mechanism is achieved between the front axle and the front axle mounting bracket through a damping assembly; the damping assembly consists of at least two components and is symmetrically arranged on both sides of the central axis with respect to the central axis.

[0008] Furthermore, the front axle is provided with shock-absorbing holes, and the shock-absorbing assembly includes a shock-absorbing rubber sleeve and a screw. The shock-absorbing rubber sleeve is disposed in the shock-absorbing hole, and the screw passes through the shock-absorbing rubber sleeve and is installed on the front axle mounting bracket.

[0009] Furthermore, the shock-absorbing rubber sleeve includes an outer bushing and an inner bushing fitted inside the outer bushing. The screw passes through the inner bushing, and shock-absorbing rubber is filled between the inner bushing and the outer bushing. The shock-absorbing rubber has a shock-absorbing support portion.

[0010] Furthermore, the shock-absorbing support is a reinforcing rib, and the space between adjacent reinforcing ribs is filled with the shock-absorbing rubber.

[0011] Furthermore, the shock-absorbing rubber has a hollow portion, and the radial cross-section of the hollow portion is a hollow fan-shaped ring.

[0012] Furthermore, one end of the screw is fixedly connected to the front axle mounting bracket, and the other end is fixedly connected to the vehicle frame.

[0013] Furthermore, the front axle is provided with a front axle center hole coaxial with the central axis, and the front axle mounting bracket is provided with a mounting bracket center hole coaxial with the central axis. A central shaft passes through the front axle center hole and the mounting bracket center hole, so that the two ends of the front axle can swing up and down around the central axis.

[0014] Furthermore, the front axle center hole is provided with a bushing, the center shaft passes through the bushing, one end of the center shaft is fixedly connected to the front axle mounting bracket, and the other end is fixedly connected to the vehicle frame.

[0015] This utility model also provides a lawnmower, on which the above-described shock-absorbing front axle assembly for lawnmowers is installed.

[0016] The beneficial effects of this utility model are as follows: The shock-absorbing front axle assembly and lawnmower of this utility model eliminate the need for complex spring and damper structures, achieving good shock absorption in a compact space. The structure is simple and can ensure that the front axle can rotate around the frame without back-and-forth movement. Moreover, it has a shock absorption effect while occupying little space, improving the stability and operating comfort of the lawnmower. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0018] Figure 1 This is a schematic diagram of the structure of the present invention. Figure I ;

[0019] Figure 2 This is a schematic diagram of the structure of the present invention. Figure II ;

[0020] Figure 3 This is a schematic diagram of the shock-absorbing rubber sleeve structure of this utility model. Figure I ;

[0021] Figure 4 This is a schematic diagram of the shock-absorbing rubber sleeve structure of this utility model. Figure II .

[0022] Reference numerals: 1. Frame; 2. Front axle; 3. Bolt; 4. Nut; 5. Front axle mounting bracket; 6. Shock absorber bushing; 601. Outer bushing; 602. Inner bushing; 603. Shock absorber support; 604. Shock absorber rubber; 7. Bushing; 8. Central shaft; 9. Shock absorber hole; 10. Front axle center hole; 11. Mounting bracket center hole. Detailed Implementation

[0023] The technical solutions of this application will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of this application.

[0024] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] Figure 1 This is a schematic diagram of the structure of the present invention. Figure I , Figure 2 This is a schematic diagram of the structure of the present invention. Figure II , Figure 3 This is a schematic diagram of the shock-absorbing rubber sleeve structure of this utility model. Figure I , Figure 4 This is a schematic diagram of the shock-absorbing rubber sleeve structure of this utility model. Figure IIAs shown in the figure: This embodiment of the shock-absorbing front axle assembly for a lawnmower includes a front axle 2 and a front axle mounting frame 5. The front axle 2 is mounted on the front axle mounting frame 5 with both ends able to swing up and down around a central axis. The front axle 2 and the front axle mounting frame 5 are located on either side of the central axis, providing shock absorption between the front axle 2 and the front axle mounting frame 5. The front axle 2 is used to mount components such as the lawnmower's vehicle and cutting blades, and can be made of cast steel or aluminum alloy. Its cross-sectional shape can be I-shaped or box-shaped to enhance bending stiffness. The front axle mounting frame 5 is fixed to the frame 1 by welding or bolting. The mounting position can be adjusted according to the lawnmower's center of gravity distribution. The central axis can be set as a horizontal axis perpendicular to the vehicle's forward direction. The front axle 2 can be oscillating via bearings or bushings. The shock absorption can be achieved through elastic elements such as rubber buffers, spring assemblies, or hydraulic dampers. The rubber buffers are preferably made of natural rubber or polyurethane. The damping elements between the front axle 2 and the front axle mounting bracket 5 can be symmetrically arranged on both sides of the central axis. The specific spacing is determined according to the length of the front axle 2 and the load distribution, which will not be elaborated here.

[0026] By incorporating a shock-absorbing structure between the front axle 2 and the front axle mounting bracket 5, the front axle 2 can swing around its central axis at a limited angle. When the lawnmower travels on uneven surfaces, both ends of the front axle 2 can move independently up and down, absorbing and buffering ground impacts through the shock-absorbing elements. Compared to existing rigid-connected front axles, this structure avoids torsional deformation of the frame 1, improving driving stability; compared to solutions using spring dampers, this structure is more compact, saving installation space. The symmetrical arrangement of the shock-absorbing elements ensures balanced force distribution on the front axle 2, preventing uneven loading. The overall structure is simple and reliable, reducing manufacturing costs and maintenance difficulty while ensuring effective shock absorption.

[0027] In this embodiment, the front axle 2 and the front axle mounting bracket 5 are connected by a damping assembly for vibration damping. At least two damping assemblies are symmetrically arranged on both sides of the central axis. This symmetrical arrangement of damping assemblies achieves stable vibration damping for the front axle 2. When an external force is applied to the front axle 2, the symmetrically arranged damping assemblies can evenly distribute the load, preventing excessive force on one side. Compared with existing technologies, this solution has a compact structure, does not require additional springs and dampers, achieves good vibration damping performance within a limited space, and avoids the problem of the front axle 2 moving back and forth.

[0028] In this embodiment, the front axle 2 is provided with a shock-absorbing hole 9. The shock-absorbing assembly includes a shock-absorbing rubber sleeve 6 and a screw 3. The shock-absorbing rubber sleeve 6 is disposed in the shock-absorbing hole 9, and the screw 3 passes through the shock-absorbing rubber sleeve 6 and is mounted on the front axle mounting bracket 5. The shock-absorbing rubber sleeve 6 includes an outer bushing 601 and an inner bushing 602 fitted inside the outer bushing 601. The screw 3 passes through the inner bushing 602, and shock-absorbing rubber 604 is filled between the inner bushing 602 and the outer bushing 601. The shock-absorbing rubber 604 has a shock-absorbing support portion 603. The shock-absorbing rubber sleeve 6 adopts an inner and outer bushing 601 structure, and the outer bushing 601 is used to connect with the shock-absorbing hole. The installation can be done by using an interference fit between the outer bushing 601 and the damping hole 9, resulting in a simple and compact structure with strong load-bearing capacity. The inner bushing 602 is used to fix the screw 3 and separates the screw 3 from the damping rubber 604. During use, this avoids direct contact between the screw 3 and the damping rubber 604, reducing wear caused by contact friction, lowering replacement costs, and increasing service life. Alternatively, the damping rubber sleeve 6 can be made using only the outer bushing 601, with the screw 3 directly contacting the damping rubber 604 and passing through to be installed on the front axle mounting bracket 5, further reducing assembly steps and making production more convenient.

[0029] In this embodiment, the shock-absorbing support 603 is a reinforcing rib, and the shock-absorbing rubber 604 is filled between adjacent reinforcing ribs. The material of the shock-absorbing support 603 can be the same as that of the shock-absorbing rubber 604 to prevent excessive deformation of the shock-absorbing rubber 604. The number and size of the shock-absorbing support 603 can be selected according to factors such as the actual size of the shock-absorbing hole 9 and the structural strength, which will not be elaborated here. The shock-absorbing support 603 can also be in the form of reinforcing ribs to evenly distribute the force. Furthermore, the thickness of the reinforcing ribs can be slightly greater than the wall thickness of the inner and outer bushings 601 to provide higher structural stability. As a preferred embodiment, there are two shock-absorbing supports 603, which are radially symmetrically arranged at the cross-section of the shock-absorbing hole 9, which can enhance the connection strength between the inner and outer bushings 601 and provide shock-absorbing space.

[0030] The combination of inner and outer bushings 601 and damping support 603 achieves stable damping within a limited space. The arrangement of the damping support 603 ensures that the damping rubber sleeve 6 distributes the load evenly under stress, avoiding localized stress concentration and preventing excessive deformation of the damping rubber 604. Compared to existing technologies, this structure eliminates the need for complex springs and dampers, simplifying the overall structure. Simultaneously, the design of the damping support 603 ensures stability during the damping process, effectively solving the problems of large space occupation and complex structure in traditional damping devices.

[0031] The damping rubber 604 is made of an elastic material, such as natural or synthetic rubber, and its hardness can be adjusted according to actual needs. The distribution of the damping rubber 604 includes, but is not limited to: multiple independent rubber blocks evenly distributed along the circumference, or a continuous annular rubber strip with clearance notches at the corresponding reinforcing rib positions when using reinforcing ribs as the damping support 603. As a preferred embodiment, a 1-3mm gap can be maintained between the damping rubber 604 and the reinforcing rib to avoid interference. The inner bushing 602 and the outer bushing 601 can be cast from metal. The damping rubber 604 is bonded to the bushing via a vulcanization process or press-fitted using an interference fit.

[0032] The installation of a damping sleeve 6 within the damping hole 9 effectively solves the problem of large space occupation in traditional damping structures. When the screw 3 is subjected to force and compresses the damping sleeve 6, the damping rubber 604 undergoes elastic deformation to absorb impact energy, while the damping support 603 prevents excessive radial deformation of the damping sleeve 6. The arrangement of the damping support 603 ensures both damping effect and structural strength. Compared to existing technologies using springs and dampers, this structure has a more compact spatial layout and achieves a progressive damping effect through the nonlinear deformation characteristics of the rubber material. Specifically, under small impacts, the damping rubber 604 can deform to buffer vibrations; under larger impacts, the damping support 603 and the rubber work together to prevent structural damage. This achieves the technical effect of balancing damping performance and structural reliability within a limited space.

[0033] In this embodiment, the shock-absorbing rubber has a hollow portion, and the radial cross-section of the hollow portion is a hollow fan-shaped ring; as shown... Figure 3 As shown, the radial cross-section of the damping rubber 604 is a hollow fan-shaped ring. The radial cross-section refers to the radial cross-section of the damping sleeve 6. The hollow fan-shaped ring is a fan-shaped cavity structure evenly distributed along the circumference of the damping rubber 604, and its cross-sectional shape is consistent with the geometric characteristics of the fan ring. Of course, other shapes such as rectangular or circular shapes with hollow radial cross-sections can also be used, which will not be elaborated here. As a preferred embodiment, the radial cross-section of the damping rubber 604 is a hollow fan-shaped ring, with the inner radius of the hollow part of the fan-shaped ring being 5mm to 8mm smaller than the outer radius, and the cavity thickness controlled within the range of 3mm to 5mm. Furthermore, the number of hollow fan-shaped rings provided in the damping rubber 604 can be set according to actual load-bearing requirements.

[0034] By designing a hollow structure with a specific shape, the damping rubber 604 can undergo progressive deformation under pressure. When the screw 3 compresses the damping rubber 604, the fan-shaped hollow part first undergoes elastic deformation. As the pressure increases, the hollow space is gradually compressed until the inner and outer arc surfaces contact each other. This design ensures both the initial flexible buffering effect and prevents excessive deformation of the rubber material through the limiting effect of the hollow part. Compared with a solid rubber structure, this solution achieves a larger effective deformation stroke within the same spatial dimensions, while the geometric constraints of the fan-ring structure ensure the controllability of the deformation. During the lawnmower's operation, the oscillating impact of the front axle 2 is converted into the elastic deformation energy of the damping rubber 604, and the energy is dissipated through the directional compression-rebound process of the hollow part, thereby effectively improving driving stability.

[0035] In this embodiment, one end of the screw 3 is fixedly connected to the front axle mounting bracket 5, and the other end is fixedly connected to the vehicle frame 1. The screw 3, as a connecting member, passes through the shock-absorbing rubber sleeve 6, wherein the shock-absorbing rubber sleeve 6 consists of an outer bushing 601 and an inner bushing 602, with a shock-absorbing rubber 604 and a shock-absorbing support 603 provided between them. As a preferred embodiment, the screw 3 can be made of high-strength alloy steel to ensure connection strength and durability. Furthermore, the screw 3 and the shock-absorbing hole 9 can be connected by threads or interference fit to achieve stable fixation. Corresponding shock-absorbing holes 9 are provided on the front axle 2, and the connection is achieved by the screw 3 passing through the shock-absorbing rubber sleeve 6, so that when the front axle 2 swings around the central axis, the screw 3 can exert a squeezing effect on the shock-absorbing rubber 604, thereby providing a rebound force to assist in shock absorption. Thus, this structure ensures that the front axle 2 can rotate around the vehicle frame 1 while avoiding the problem of front-to-back movement, and the overall structure is compact and occupies little space. Compared to existing technologies, this solution eliminates the complex spring and damper structure, simplifies the assembly process, and achieves effective shock absorption through the elastic deformation of the 604 shock-absorbing rubber, thus improving the smoothness and comfort of the lawnmower's operation; for example Figure 1 As shown, in a preferred embodiment, the screw 3 can pass through the front axle mounting bracket 5 and be fixedly connected to the front axle mounting bracket 5 by the nut 4, making disassembly convenient.

[0036] In this embodiment, when the front axle 2 rotates around its central axis, the screw 3 compresses the damping rubber 604 in the direction opposite to the rotation, generating a rebound force. This rebound force assists the front axle 2 in rotating and damping, and in returning to its initial state. The screw 3, as a rigid connector, moves in the opposite direction to the rotation of the front axle 2. When the front axle 2 swings upward, the screw 3 compresses the damping rubber 604 downward; when the front axle 2 swings downward, the screw 3 compresses the damping rubber 604 upward. The elastic deformation of the damping rubber 604 generates a rebound force opposite to the compression direction, which is transmitted to the front axle 2 through the screw 3, creating a damping effect. As a preferred embodiment, the damping rubber 604 can be made of natural or synthetic rubber to ensure sufficient elastic deformation space and rebound force. Furthermore, the contact surface between the screw 3 and the damping rubber 604 can be set as a plane or a curved surface with anti-slip texture to enhance force transmission efficiency. Through the interaction between the screw 3 and the damping rubber 604, passive damping is formed during the swinging of the front axle 2. Compared with existing technologies that use springs and dampers, this structure has the following advantages: First, the combination of damping rubber 604 and screw 3 is more compact, significantly reducing space occupation; second, the rubber material itself has non-linear elastic properties, providing flexible buffering during small swaying of the front axle 2 and stronger damping force during large swaying, thus adapting to the damping requirements under different road conditions; finally, the entire damping process requires no additional lubrication or maintenance, resulting in higher reliability. This design effectively solves the problems of complex structure and large space occupation of traditional damping devices, while ensuring the smooth rotation of the front axle 2 and automatic reset function.

[0037] In this embodiment, the shock-absorbing rubber 604 has a maximum deformation during vibration. During vibration, the maximum deformation of the shock-absorbing rubber 604 is the inner arc of its hollow fan-shaped ring abutting against the outer arc; as... Figure 4As shown, the maximum deformation refers to the maximum amount of deformation that the damping rubber 604 can undergo when compressed. This deformation is determined by the material properties and structural design of the damping rubber 604. The hollow fan-shaped ring is a cavity with a specific shape inside the damping rubber 604, with its inner and outer arcs referring to the arc-shaped surfaces on the inner and outer sides of the hollow portion, respectively. As a preferred embodiment, multiple hollow fan-shaped rings can be set and evenly distributed along the circumference to optimize the stress distribution of the damping rubber 604. In addition, the size and shape of the fan-shaped rings can be adjusted according to actual damping requirements. For example, increasing the hollow area can reduce the stiffness of the damping rubber 604, while decreasing the hollow area can increase the supporting strength of the damping rubber 604. By setting a damping rubber 604 with a specific shape and hollow structure, and ensuring that the inner and outer arcs of the hollow fan-shaped rings abut against each other when the maximum deformation is reached, excessive deformation of the damping rubber 604 can be effectively limited, preventing damage to the damping assembly due to overload. Meanwhile, the hollow, fan-shaped design allows the 604 damping rubber to undergo progressive elastic deformation under pressure, thus providing a smoother damping effect. Compared with existing technologies, this solution simplifies the structural design and reduces space occupation while ensuring damping performance, making it particularly suitable for lawnmower front axle assemblies with high installation space requirements.

[0038] In this embodiment, the front axle 2 has a front axle center hole 10 coaxial with the central axis, and the front axle mounting bracket 5 has a mounting bracket center hole 11 coaxial with the central axis. A central shaft 8 passes through the front axle center hole 10 and the mounting bracket center hole 11, allowing the two ends of the front axle 2 to swing up and down around the central axis. The front axle center hole 10 is provided with a bushing 7, and the central shaft 8 passes through the bushing 7. One end of the central shaft 8 is fixedly connected to the front axle mounting bracket 5, and the other end is fixedly connected to the vehicle frame 1. The coaxiality of the front axle center hole 10 and the mounting bracket center hole 11 is ensured by machining. The bushing 7 can be made of powder metallurgy material, and its inner surface is precision ground. As a preferred embodiment, the bushing 7 has sealing ring grooves at both ends, which can be used to install fluororubber sealing rings to prevent mud and sand from entering. Through the mating structure of the central shaft 8 and the bushing 7, the front axle 2 can swing up and down around the central axis. The bushing 7 serves both as a wear-resistant part to reduce the wear of the central shaft 8 and as a clearance fit to control the swing resistance. When the vehicle is in motion, the oscillating torque generated by the impact of the ground on the front axle 2 is transmitted to the central shaft 8 through the bushing 7. Since the central shaft 8 is rigidly connected to the frame 1, the front axle 2 can only rotate around the shaft, effectively preventing longitudinal movement. Compared with existing technologies, this structure eliminates the need for complex springs and dampers, simplifying the overall structure while ensuring shock absorption, reducing space occupation, and requiring only the replacement of the bushing 7 to restore the fit accuracy during maintenance.

[0039] In this embodiment, a lawnmower is also provided, on which the aforementioned shock-absorbing front axle assembly for lawnmowers can be installed. Stable shock absorption of the front axle 2 is achieved through symmetrically arranged shock-absorbing components. The combined structure of the shock-absorbing bushing 6 and the shock-absorbing rubber 604 provides effective cushioning performance within a limited space. When the lawnmower travels on uneven surfaces, the swaying of the front axle 2 compresses the shock-absorbing rubber 604 through the screw 3, utilizing the elastic deformation of the rubber to absorb impact energy. The fan-shaped hollow section design ensures shock absorption while avoiding excessive compression of the rubber material. Compared with existing technologies, this solution eliminates the need for complex spring and damper structures, achieving good shock absorption within a compact space. Simultaneously, the symmetrically arranged shock-absorbing components prevent the front axle 2 from shifting back and forth, improving the lawnmower's smoothness and operational comfort.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A shock-absorbing front axle assembly for a lawnmower, characterized in that: It includes a front axle and a front axle mounting bracket. The front axle is mounted on the front axle mounting bracket in such a way that both ends can swing up and down around a central axis. It is located on both sides of the central axis and provides shock absorption between the front axle and the front axle mounting bracket.

2. The shock-absorbing front axle assembly for a lawnmower according to claim 1, characterized in that: The aforementioned damping mechanism is achieved between the front axle and the front axle mounting bracket through a damping assembly; the damping assembly consists of at least two components and is symmetrically arranged on both sides of the central axis with respect to the central axis.

3. The shock-absorbing front axle assembly for a lawnmower according to claim 2, characterized in that: The front axle is provided with shock-absorbing holes, and the shock-absorbing assembly includes a shock-absorbing rubber sleeve and a screw. The shock-absorbing rubber sleeve is disposed in the shock-absorbing hole, and the screw passes through the shock-absorbing rubber sleeve and is installed on the front axle mounting bracket.

4. The shock-absorbing front axle assembly for a lawnmower according to claim 3, characterized in that: The shock-absorbing rubber sleeve includes an outer bushing and an inner bushing fitted inside the outer bushing. The screw passes through the inner bushing, and shock-absorbing rubber is filled between the inner bushing and the outer bushing. The shock-absorbing rubber has a shock-absorbing support portion.

5. The shock-absorbing front axle assembly for a lawnmower according to claim 4, characterized in that: The shock-absorbing support is a reinforcing rib, and the space between adjacent reinforcing ribs is filled with the shock-absorbing rubber.

6. The shock-absorbing front axle assembly for a lawnmower according to claim 4, characterized in that: The shock-absorbing rubber has a hollow section, and the radial cross-section of the hollow section is a hollow fan-shaped ring.

7. The shock-absorbing front axle assembly for a lawnmower according to claim 3, characterized in that: One end of the screw is fixedly connected to the front axle mounting bracket, and the other end is fixedly connected to the vehicle frame.

8. The shock-absorbing front axle assembly for a lawnmower according to claim 1, characterized in that: The front axle has a central hole coaxial with the central axis, and the front axle mounting bracket has a central hole coaxial with the central axis. A central shaft passes through the central hole of the front axle and the central hole of the mounting bracket, so that both ends of the front axle can swing up and down around the central axis.

9. The shock-absorbing front axle assembly for a lawnmower according to claim 8, characterized in that: The front axle center hole is provided with a bushing, the central shaft passes through the bushing, one end of the central shaft is fixedly connected to the front axle mounting bracket, and the other end is fixedly connected to the vehicle frame.

10. A lawnmower, characterized in that: The lawnmower is equipped with a shock-absorbing front axle assembly for a lawnmower as described in any one of claims 1-9.

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