Novel large-tonnage single-sided double-tire steering drive axle

Abstract

The utility model relates to the field of drive axle, especially a new type of large tonnage single side double tire steering drive axle. The driving axle assembly in the driving axle includes axle housing, tire and transmission structure, and the left and right sides of axle housing are equipped with C type connecting bridge, and C type connecting bridge rotationally is equipped with connecting plate, and connecting plate is rotationally connected with tire, steering assembly includes rotary seat, telescopic oil cylinder and steering knuckle arm, rotary seat is equipped in the front of axle housing, and the both ends of steering knuckle arm are clamping the connecting place of C type connecting bridge and connecting plate and are fixedly connected with connecting plate, and the left and right ends of telescopic oil cylinder are rotationally connected with rotary seat and steering knuckle arm respectively. The utility model increases the carrying capacity of driving axle through the setting of axle housing auxiliary drive axle support, and the left and right sides of axle housing are equipped with C type connecting bridge, and the connecting strength between driving frame and tire is increased while leaving enough space for the universal work.

Description

Technical Field

[0001] This utility model relates to the field of drive axles, and in particular to a novel large-tonnage single-sided dual-tire steering drive axle. Background Technology

[0002] The steering drive axle is the core component that enables vehicle driving and steering functions. The wheel spokes on the vehicle are connected to the steering axle through a universal joint to achieve drive transmission during the steering process. The steering function is driven by a telescopic component on one side of the wheel spokes. This results in limited steering drive force, making it difficult to meet the steering requirements of large tonnage vehicles. Moreover, most existing steering drive axles are single-sided and single-tire, which limits their load-bearing capacity. Utility Model Content

[0003] The purpose of this invention is to overcome the above-mentioned shortcomings and provide a new type of large-tonnage single-sided dual-tire steering drive axle, which has the advantages of strong steering control force and high load-bearing capacity.

[0004] This utility model provides a novel large-tonnage single-sided dual-tire steering drive axle, including a drive wheel assembly, a driven wheel assembly, a drive assembly, and a steering assembly. The drive wheel assembly and the driven wheel assembly are arranged front and rear. The drive assembly connects the drive wheel assembly and the driven wheel assembly and drives the drive wheel assembly to move. The drive wheel assembly includes an axle housing, tires, and a transmission structure. C-shaped connecting axles are provided on the left and right sides of the axle housing. Connecting plates are rotatably provided on the C-shaped connecting axles. There are two tires on the same side of the drive wheel assembly, and the two tires are coaxially connected. The connecting plate is rotatably connected to the tires. The transmission structure is located inside the axle housing and transmits power to the drive assembly and the tires on both sides of the axle housing. The steering assembly includes a pivot, a telescopic cylinder, and a steering knuckle arm. The pivot is located in front of the axle housing. The two ends of the steering knuckle arm clamp the connection between the C-shaped connecting axle and the connecting plate and are fixedly connected to the connecting plate. The left and right ends of the telescopic cylinder are rotatably connected to the pivot and the steering knuckle arm, respectively. Controlling the telescopic cylinder to extend and retract causes the connecting plate to rotate around the C-shaped connecting axle.

[0005] Furthermore, the steering assembly also includes a steering tie rod, with an extension plate extending forward below the steering knuckle arm, and both ends of the steering tie rod being rotatably connected to two extension plates located on both sides of the axle housing.

[0006] Furthermore, the two tires on the same side are provided with inner ring assemblies. One side of the inner ring assembly is rotatably connected to the connecting plate. The inner ring assembly is cylindrical and its outer ring is provided with two fixing rings. The two tires are respectively connected to the two fixing rings to achieve coaxial movement.

[0007] Furthermore, the drive axle also includes leaf spring assemblies, with two leaf spring assemblies symmetrically arranged on the top of the axle housing.

[0008] Furthermore, a U-bolt is provided between the leaf spring assembly and the axle housing, and a fixing plate is provided below the axle housing. The two U-bolts, with their openings facing downwards, pass through the leaf spring assembly to the bottom of the axle housing and are connected to the fixing plate.

[0009] By adopting the above technical solution, the beneficial effects of this utility model are: This invention increases the load-bearing strength of the drive axle by setting an auxiliary drive axle support in the axle housing. C-shaped connecting axles are set on both sides of the axle housing to provide sufficient space for universal joint operation while increasing the connection strength between the drive frame and the tires. The tire steering transmission is achieved by setting a steering knuckle arm, which has a more uniform and reasonable point of action compared to the traditional articulated plate, thus improving the transmission effect of steering drive force. The single-sided dual-tire structure increases the vehicle's load capacity and is more suitable for heavy-duty vehicles.

[0010] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure.

[0011] Undoubtedly, such and other objects of this invention will become more apparent after the following detailed description of the preferred embodiments, which are illustrated in various accompanying drawings and figures.

[0012] To make the above and other objects, features and advantages of this utility model more apparent and understandable, one or more preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0013] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0014] In the accompanying drawings, the same parts use the same reference numerals, and the drawings are schematic and not necessarily drawn to actual scale.

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only one or more embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on such drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of a novel large-tonnage single-sided dual-tire steering drive axle according to the present invention. Figure 2 This is a partial structural schematic diagram of a novel large-tonnage single-sided dual-tire steering drive axle according to the present invention. Figure 3 This is a schematic diagram of the drive wheel assembly structure of a novel large-tonnage single-sided dual-tire steering drive axle according to the present invention. Figure 4 This is a schematic diagram of the tire structure of a novel large-tonnage single-sided dual-tire steering drive axle according to the present invention. Figure 5 This is a schematic diagram of the leaf spring assembly structure of a novel large-tonnage single-sided dual-tire steering drive axle according to the present invention. Explanation of key figure labels: 1. Drive wheel assembly; 11. Axle housing; 111. C-type connecting axle; 112. Connecting plate; 13. Tire; 131. Inner ring assembly; 132. Retaining ring; 2. Driven wheel assembly; 3. Driver components; 4. Steering components; 41. Rotary seat; 42. Telescopic cylinder; 43. Steering knuckle arm; 44. Extension plate; 5. Steering tie rod; 6. Leaf spring assembly; 61. U-bolt; 62. Fixing plate. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments. It should be understood that the specific embodiments described herein are merely for explaining the present utility model and are not intended to limit the present utility model.

[0018] Reference Figure 1-5 This utility model provides a novel large-tonnage single-sided dual-tire steering drive axle, including a drive wheel assembly 1, a driven wheel assembly 2, a drive assembly 3, and a steering assembly 4.

[0019] The driving wheel assembly 1 and the driven wheel assembly 2 are arranged one behind the other. The drive assembly 3 connects the driving wheel assembly 1 and the driven wheel assembly 2 and drives the driving wheel assembly 1 to move. The drive assembly 3 serves as the power component of the drive axle and may include a power component for driving and a transmission shaft. The transmission shaft passes through the driven wheel assembly 2 and connects to the driving wheel assembly 1. The connection method is the existing drive axle connection method, which will not be described in detail here. The driving wheel assembly 1 includes an axle housing 11, tires 13, and a transmission structure. C-shaped connecting axles 111 are provided on the left and right sides of the axle housing 11. The C-shaped connecting axles 111 are rotatably connected to connecting plates 112. There are two tires 13 on the same side of the driving wheel assembly 1. The two tires 13 are coaxially connected. Specifically, the two tires 13 on the same side have an inner ring assembly 131. One side of the inner ring assembly 131 is rotatably connected to the connecting plate 112. The inner ring assembly 131 is cylindrical and its outer ring has two fixing rings 132. The two tires 13 are connected to the two fixing rings 132 respectively to achieve coaxial movement. The connecting plate 112 is rotatably connected to the tire 13 via bearings. The transmission structure is located inside the axle housing 11 (not shown in the figure) and transmits power to the drive assembly 3 and the tires 13 on both sides of the axle housing 11. The middle part of the transmission structure is connected to the drive assembly 3 via a gear set, and both ends of the transmission structure are equipped with universal joints that are connected to the tires 13. Both connection methods are existing technologies; any method that enables rotatable drive from the drive assembly 3 to the tires 13 is acceptable. The steering assembly 4 includes a pivot 41, a telescopic cylinder 42, and a steering knuckle arm 43. The pivot 41 is located in front of the axle housing 11. The two ends of the steering knuckle arm 43 clamp the connection points of the C-shaped connecting bridge 111 and the connecting plate 112 and are fixedly connected to the connecting plate 112. The left and right ends of the telescopic cylinder 42 are rotatably connected to the pivot 41 and the steering knuckle arm 43, respectively. Controlling the telescopic cylinder 42 to extend or retract causes the connecting plate 112 to rotate around the C-shaped connecting bridge 111. To increase the synchronous steering of the tires 13 on both sides of the axle housing 11, the steering assembly 4 also includes a steering tie rod 5. An extension plate 44 is provided forward below the steering knuckle arm 43, and the two ends of the steering tie rod 5 are rotatably connected to the two extension plates 44 located on both sides of the axle housing 11.

[0020] To enhance the vibration resistance of the drive axle, it also includes leaf spring assemblies 6, with two leaf spring assemblies 6 symmetrically arranged on the top of the axle housing 11. The connection between the leaf spring assemblies 6 and the axle housing 11 is as follows: U-bolts 61 are provided between the leaf spring assemblies 6 and the axle housing 11, and a fixing plate 62 is provided at the bottom of the axle housing 11. The two U-bolts, with their openings facing downwards, pass through the leaf spring assemblies 6 to the bottom of the axle housing 11 and connect with the fixing plate 62.

[0021] It should be noted that the driven wheel structure can be the same as the driving wheel structure, allowing it to move passively under the traction of the driving wheel, or it can have the same transmission structure as the driving wheel inside to move actively. Regardless of whether the driven wheel structure moves actively or passively, its structure can be connected to the steering assembly 4, steering tie rod 5, and leaf spring assembly 6 just like the driving wheel.

[0022] It should be understood that the embodiments disclosed herein are not limited to the specific processing steps or materials disclosed herein, but should be extended to equivalent substitutions of such features as understood by those skilled in the art. It should also be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting.

[0023] The term "embodiment" in this specification refers to a specific feature or characteristic described in connection with an embodiment that is included in at least one embodiment of the present invention. Therefore, phrases or "embodiments" appearing in various places throughout the specification do not necessarily refer to the same embodiment.

[0024] Furthermore, the described features or characteristics may be incorporated into one or more embodiments in any other suitable manner. In the above description, specific details, such as thickness, quantity, etc., are provided to provide a comprehensive understanding of embodiments of the present invention. However, those skilled in the art will understand that the present invention can be implemented without the aforementioned one or more specific details or may be implemented using other methods, components, materials, etc.

Claims

1. A novel large-tonnage single-sided dual-tire steering drive axle, characterized in that, The system includes a drive wheel assembly, a driven wheel assembly, a drive assembly, and a steering assembly. The drive wheel assembly and the driven wheel assembly are arranged one behind the other. The drive assembly connects the drive wheel assembly and the driven wheel assembly and drives the drive wheel assembly to move. The drive wheel assembly includes an axle housing, tires, and a transmission structure. C-shaped connecting axles are provided on the left and right sides of the axle housing. Connecting plates are rotatably mounted on the C-shaped connecting axles. There are two tires on the same side of the drive wheel assembly, and the two tires are coaxially connected. The connecting plate is rotatably connected to the tires. The transmission structure is located inside the axle housing and transmits power to the drive assembly and the tires on both sides of the axle housing. The steering assembly includes a pivot, a telescopic cylinder, and a steering knuckle arm. The pivot is located in front of the axle housing. The two ends of the steering knuckle arm clamp the connection between the C-shaped connecting axle and the connecting plate and are fixedly connected to the connecting plate. The left and right ends of the telescopic cylinder are rotatably connected to the pivot and the steering knuckle arm, respectively. Controlling the telescopic cylinder to extend and retract causes the connecting plate to rotate around the C-shaped connecting axle.

2. The novel large-tonnage single-sided dual-tire steering drive axle according to claim 1, characterized in that, The steering assembly also includes a steering tie rod, with an extension plate extending forward below the steering knuckle arm, and the two ends of the steering tie rod being rotatably connected to two extension plates located on both sides of the axle housing.

3. The novel large-tonnage single-sided dual-tire steering drive axle according to claim 1, characterized in that, The two tires on the same side are provided with inner ring assemblies. One side of the inner ring assembly is rotatably connected to the connecting plate. The inner ring assembly is cylindrical and its outer ring is provided with two fixing rings. The two tires are respectively connected to the two fixing rings to achieve coaxial movement.

4. The novel large-tonnage single-sided dual-tire steering drive axle according to claim 1, characterized in that, It also includes leaf spring assemblies, with two leaf spring assemblies symmetrically arranged on the top of the bridge housing.

5. The novel large-tonnage single-sided dual-tire steering drive axle according to claim 4, characterized in that, The leaf spring assembly is connected to the axle housing by U-bolts. A fixing plate is located below the axle housing. Two U-bolts with their openings facing downwards pass through the leaf spring assembly to the bottom of the axle housing and are connected to the fixing plate.

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