Suspension axle of tunnel engineering vehicle

Abstract

The utility model relates to the technical field of vehicles, in particular to a tunnel engineering vehicle suspension axle which comprises an engineering vehicle frame and further comprises a suspension frame, an axle body, an axle swing driving assembly and a wheel assembly, and the suspension frame is rotationally arranged at the bottom of the engineering vehicle frame; one end of the left half axle and one end of the right half axle are hinged to the suspension bracket; the axle swing driving assembly is hung below an engineering vehicle frame, the two ends of the axle swing driving assembly are rotationally connected with the left half axle and the right half axle respectively, and the wheel assemblies are arranged on the outer side of the left half axle and the outer side of the right half axle respectively. According to the utility model, the tunnel engineering vehicle can conveniently walk on bumpy road surfaces and uneven left and right road surfaces, the trafficability of the tunnel engineering vehicle on various bumpy road conditions can be met, and the working efficiency of the tunnel engineering vehicle is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to a suspension axle for tunnel engineering vehicles. Background Art

[0002] At present, traditional shield and TBM construction methods are equipped with tunnel engineering vehicles. Tunnel engineering vehicles can transport the materials, equipment and tools required for tunnel construction into the tunnel. At the same time, they can also transport the waste and slag generated during the tunnel construction process out of the tunnel to avoid the influence of debris, dust, cement and other debris inside the tunnel on construction and use, so as to ensure the cleanliness of the tunnel construction working environment and the smooth progress of construction.

[0003] During tunnel construction, limited by the tunnel's pavement and other factors, such as underground construction space, the majority of tunnel construction vehicles are wheel-rail vehicles. Track laying, a complex and costly process, requires the laying of tracks within the tunnel. Furthermore, over long distances and steep slopes, the low friction coefficient between the wheels and rails of wheel-rail vehicles means the vehicle's driving and braking forces are insufficient to meet construction requirements. Therefore, existing technologies have replaced wheel-rail vehicles with tire-type vehicles for material transport in tunnel construction. However, due to the limitations of their suspension structure, tire-type vehicles struggle to meet operational requirements in complex conditions or on uneven surfaces. They struggle to navigate potholes and uneven surfaces, and are unsuitable for curved and similarly shaped surfaces. Summary of the Invention

[0004] The utility model aims to solve the problem that existing tire-type vehicles are difficult to travel on potholes and uneven roads when transporting materials in tunnels. The utility model provides a tunnel engineering vehicle suspension axle, so that the tunnel engineering vehicle can easily travel on potholes and uneven roads, can meet the passability of the tunnel engineering vehicle in various pothole-prone road conditions, and greatly improve the working efficiency of the tunnel engineering vehicle.

[0005] In order to achieve the above-mentioned purpose, the technical solution of the present utility model is: a tunnel engineering vehicle suspension axle, including an engineering vehicle frame, a suspension frame, an axle, an axle swing drive assembly and a wheel assembly, the suspension frame is rotatably arranged at the bottom of the engineering vehicle frame; the axle includes a left half axle and a right half axle, one end of the left half axle and the right half axle are both hinged to the suspension frame, and the left half axle and the right half axle can swing relative to the suspension frame to realize the function of changing the swing angle of the left half axle and the right half axle.

[0006] The axle swing drive assembly is suspended below the engineering vehicle frame, and both ends of the axle swing drive assembly are rotationally connected to the left half axle and the right half axle respectively. The wheel assemblies are provided on the outer sides of the left half axle and the right half axle. The axle swing drive assembly can drive the left half axle and the right half axle to complete the up and down swinging movement, so that the left half axle and the right half axle respectively drive the wheel assemblies to swing up and down, realize mutual compensation of the two wheel assemblies, and improve the passability of the tunnel engineering vehicle on bumpy roads.

[0007] Furthermore, an articulated seat is fixedly provided at the bottom of the suspension frame, and an articulated shaft is fixedly provided on the articulated seat. The left half axle and the right half axle can be connected through the cooperation of the articulated seat and the articulated shaft.

[0008] Furthermore, the left half axle and the right half axle are both in an L-shaped structure, and the horizontal parts of the left half axle and the right half axle are both provided with axial holes. The horizontal parts of the left half axle and the right half axle are both rotatably sleeved on the articulated shaft through the axial holes. The through holes in the horizontal parts of the left half axle and the right half axle cooperate with the articulated shaft so that the left half axle and the right half axle can complete an up and down swinging movement relative to the suspension frame.

[0009] Furthermore, the axle swing drive assembly comprises a suspension cylinder, the tail end and piston rod of which are pivotally connected to the vertical portions of the left and right axle halves, respectively, via pins. This allows the left and right axle halves to swing by retracting and extending the suspension cylinder piston rods, facilitating the navigation of tunnel engineering vehicles over potholes and uneven surfaces, ensuring their ability to navigate various pothole-prone road conditions.

[0010] Furthermore, axle side plates are fixedly provided on the outer sides of the left half axle and the right half axle, and the axle side plates are connected to the wheel assemblies.

[0011] Furthermore, the wheel assembly includes a rim shaft, a rim and a tire, one end of the rim shaft is rotatably connected to the rim, and the other end is connected to the axle side plate, and the rim is connected to the tire.

[0012] Furthermore, the left half axle and the right half axle are both provided with a braking system, through which the wheel assembly can be braked.

[0013] Furthermore, cabs are provided at both ends of the engineering vehicle frame, so that the tunnel engineering vehicle can be prevented from turning around in a tunnel or a narrow space through the two cabs.

[0014] Through the above technical solution, the beneficial effects of the utility model are:

[0015] The utility model has a reasonable structure and good use effect, can make tunnel engineering vehicles easy to travel on potholes and uneven roads, can meet the passability of tunnel engineering vehicles in various pothole-prone road conditions, and greatly improves the working efficiency of tunnel engineering vehicles.

[0016] The utility model realizes the function of changing the yaw angle of the left half axle and the right half axle by extending and retracting the piston rod of the suspension oil cylinder, thereby realizing the left half axle and the right half axle to independently complete the up and down swinging movement, and the left half axle and the right half axle respectively drive the wheel assembly to complete the up and down swinging movement. When the tunnel engineering vehicle travels on uneven roads on the left and right sides, the two wheel assemblies compensate for each other, meet the passability of the tunnel engineering vehicle in various potholes and road conditions, and greatly improve the working efficiency of the tunnel engineering vehicle; at the same time, the suspension oil cylinder itself can also play a good shock absorption effect during the driving of the tunnel engineering vehicle.

[0017] The utility model realizes the swinging action of the left half axle and the right half axle by the suspension oil cylinder, which can meet the needs of tunnel construction with curved or other special-shaped road surfaces, improves the passability of tunnel engineering vehicles on curved or other special-shaped road surfaces and horizontal roads, reduces tire wear, reduces costs, improves work efficiency, and reduces work difficulty. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of a tunnel engineering vehicle suspension axle of the utility model. Figure 1 ;

[0019] Figure 2 This is a schematic diagram of the structure of a tunnel engineering vehicle suspension axle of the utility model. Figure 2 .

[0020] The numbers in the accompanying drawings are: 1 is the frame of the engineering vehicle, 2 is the suspension frame, 3 is the articulated seat, 4 is the articulated shaft, 5 is the left half axle, 6 is the right half axle, 7 is the suspension cylinder, 8 is the axle side plate, 9 is the rim, 10 is the tire, 11 is the braking system, 12 is the rim shaft, and 13 is the cab. DETAILED DESCRIPTION

[0021] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0022] like Figures 1 and 2As shown, a tunnel engineering vehicle suspension axle includes an engineering vehicle frame 1, a suspension frame 2, an axle, an axle swing drive assembly, and a wheel assembly. The suspension frame 2 is rotatably mounted on the bottom of the engineering vehicle frame 1. The axle includes a left half-axle 5 and a right half-axle 6, each of which has one end hinged to the suspension frame 2. In this embodiment, at least two suspension frames 2 are mounted on the bottom of the engineering vehicle frame 1. When the engineering vehicle frame 1 is longer, three, four, or more suspension frames 2 may be mounted. The suspension frames 2 are rotatable relative to the engineering vehicle frame 1. The rotation of the suspension frames 2 can be achieved by the steering system of the tunnel engineering vehicle, which is mounted on the engineering vehicle frame 1 and is prior art and will not be described in detail here. The left half-axle 5 and the right half-axle 6 are rotatable relative to the suspension frame 2, thereby achieving the function of changing the yaw angle of the left half-axle 5 and the right half-axle 6.

[0023] The axle swing drive assembly is suspended below the construction vehicle frame 1. Its ends are pivotally connected to the left and right axle halves 5 and 6, respectively. Wheel assemblies are provided on the outer sides of each of the left and right axle halves 5 and 6. In this embodiment, the axle swing drive assembly can drive the left and right axle halves 5 and 6 to rotate relative to the suspension frame 2, independently performing an up-and-down swing motion. This ensures tunnel construction vehicles can navigate various potholes, curved, or other irregularly shaped roads.

[0024] The bottom of the suspension frame 2 is fixedly provided with an articulated seat 3, and an articulated shaft 4 is fixedly provided on the articulated seat 3. In this embodiment, both ends of the articulated shaft 4 are fixedly connected to the articulated seat 3, and the articulated seat 3 and the articulated shaft 4 act to allow the left half axle 5 and the right half axle 6 to swing up and down.

[0025] The left and right axle halves 5, 6 are both L-shaped. Axle holes are defined in the horizontal portions of the left and right axle halves 5, 6. The horizontal portions of the left and right axle halves 5, 6 are rotatably sleeved onto the articulation shaft 4 through the holes. In this embodiment, the through holes in the horizontal portions of the left and right axle halves 5, 6 cooperate with the articulation shaft 4 to allow the left and right axle halves 5, 6 to swing up and down relative to the suspension frame 2.

[0026] The axle swing drive assembly comprises a suspension cylinder 7, the tail end and piston rod of which are pivotally connected to the vertical portions of the left and right axle halves 5 and 6, respectively, via pins. In this embodiment, a lug is mounted on the tail end of the suspension cylinder 7. The piston rod end and lug are pivotally mounted on the pins, with the left and right axle halves 5 and 6 connected to the two pins, respectively. The piston rod of the suspension cylinder 7 retracts and retracts, driving the left and right axle halves 5 and 6 to swing downward or upward, facilitating the navigation of tunnel engineering vehicles over potholes and uneven surfaces. The suspension cylinder 7 can also be replaced with an air spring, which can be extended and retracted by configuring an air circuit system to achieve variable wheel assembly yaw angles.

[0027] Axle side plates 8 are fixedly provided on the outer sides of the left half axle 5 and the right half axle 6, and the axle side plates 8 are connected to the wheel assemblies. In this embodiment, the axle side plates 8 are used to connect the two wheel assemblies to the left half axle 5 and the right half axle 6 respectively.

[0028] The wheel assembly includes a rim shaft 12 , a rim 9 and a tire 10 . One end of the rim shaft 12 is rotatably connected to the rim 9 , and the other end is connected to the axle side plate 8 . The rim 9 is connected to the tire 10 .

[0029] The left half axle 5 and the right half axle 6 are both provided with a braking system 11. In this embodiment, the braking system 11 can brake the wheel assembly, wherein the braking system 11 is prior art and will not be described in detail here.

[0030] Both ends of the engineering vehicle frame 1 are provided with a cab 13. In this embodiment, the cabs 13 at both ends of the engineering vehicle frame 1 can prevent the tunnel engineering vehicle from turning around in a tunnel or a narrow space, making it easier to travel in a small space.

[0031] The working principle of the present utility model is as follows: when the tunnel engineering vehicle is traveling on a pothole-shaped or uneven road surface, the suspension cylinder 7 is controlled to open, the piston rod of the suspension cylinder 7 is extended, and the tail end and the piston rod of the suspension cylinder 7 respectively drive the left half axle 5 and the right half axle 6 to swing downward relative to the suspension frame 2, so that the tunnel engineering vehicle can meet the passability of traveling on various pothole-shaped road conditions and curved or other special-shaped road surfaces; after the tunnel engineering vehicle has traveled over the pothole-shaped or uneven road surface, the piston rod of the suspension cylinder 7 is retracted, and the tail end and the piston rod of the suspension cylinder 7 respectively drive the left half axle 5 and the right half axle 6 to swing upward relative to the suspension frame 2, so that the two wheel assemblies correspond to each other.

[0032] The embodiments described above are only preferred embodiments of the utility model and do not limit the scope of implementation of the utility model. Therefore, any equivalent changes or modifications made according to the technical solutions described in the patent scope of the utility model should be included in the scope of the patent application of the utility model.

Claims

1. A tunnel engineering vehicle suspension axle, comprising an engineering vehicle frame (1), characterized in that: It also includes a suspension frame (2), an axle, an axle swing drive assembly and a wheel assembly, wherein the suspension frame (2) is rotatably arranged at the bottom of the engineering vehicle frame (1); the axle includes a left half axle (5) and a right half axle (6), and one end of each of the left half axle (5) and the right half axle (6) is hinged to the suspension frame (2); The axle swing drive assembly is suspended below the engineering vehicle frame (1), and both ends of the axle swing drive assembly are rotationally connected to the left half axle (5) and the right half axle (6), respectively. The wheel assembly is provided on the outer sides of the left half axle (5) and the right half axle (6).

2. The tunnel engineering vehicle suspension axle according to claim 1, characterized in that: A hinge seat (3) is fixedly provided at the bottom of the suspension frame (2), and a hinge shaft (4) is fixedly provided on the hinge seat (3).

3. The tunnel engineering vehicle suspension axle according to claim 2, characterized in that: The left half axle (5) and the right half axle (6) are both L-shaped structures. The horizontal parts of the left half axle (5) and the right half axle (6) are both provided with shaft holes. The horizontal parts of the left half axle (5) and the right half axle (6) are both rotatably sleeved on the articulated shaft (4) through the shaft holes.

4. The tunnel engineering vehicle suspension axle according to claim 3, characterized in that: The axle swing drive assembly is a suspension cylinder (7), and the tail end and piston rod of the suspension cylinder (7) are rotationally connected to the vertical parts of the left half axle (5) and the right half axle (6) respectively through pins.

5. The tunnel engineering vehicle suspension axle according to claim 1, characterized in that: Axle side plates (8) are fixedly provided on the outer sides of the left half axle (5) and the right half axle (6), and the axle side plates (8) are connected to the wheel assembly.

6. The tunnel engineering vehicle suspension axle according to claim 5, characterized in that: The wheel assembly comprises a rim shaft (12), a rim (9) and a tire (10), one end of the rim shaft (12) is rotatably connected to the rim (9), and the other end is connected to the axle side plate (8), and the rim (9) is connected to the tire (10).

7. The tunnel engineering vehicle suspension axle according to claim 1, characterized in that: The left half axle (5) and the right half axle (6) are both provided with a braking system (11).

8. The tunnel engineering vehicle suspension axle according to claim 1, characterized in that: A cab (13) is provided at both ends of the engineering vehicle frame (1).

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