A snowmobile includes a chassis, at least one ski steerably secured to a front of the chassis, and a skid frame having a rear suspension and one or more slide rails. The rear suspension includes a flexible, composite member affixed on a first end to the one or more slide rails and on a second end to the chassis, wherein the flexible, composite member includes a main body and a secondary body.

A track system for a vehicle having a rear swing arm that is movable between a compressed suspension position and an extended suspension position. The track system has a frame and a dynamic traction device. The frame is pivotably attachable to the swing arm. The dynamic traction device has at least two elongate portions, one of which is movable relative to the other between a retracted position and an extended position and biased toward the retracted position. In use, the elongate portions interconnect the vehicle and the frame. When the vehicle is lifted off terrain, during at least a part of a movement of the swing arm from the compressed suspension position toward the extended suspension position, the dynamic traction device applies a torque to the frame and thereby changes a longitudinal angular position of the frame counter-clockwise relative to a left side of the vehicle.

A working vehicle has an undercarriage assembly configured to drive the working vehicle over ground and a chassis connected to the undercarriage assembly through a suspension system. The suspension system includes a mechanical spring, the mechanical spring having a first end connected to the undercarriage assembly and a second end. The suspension system includes a hydraulic cylinder, the hydraulic cylinder having a first portion that mounts to the second end of the mechanical spring and a second portion that connects to the chassis such that the mechanical spring and hydraulic cylinder are arranged in series between the undercarriage assembly and the chassis to modify the height of the chassis. The suspension system is configured to level the chassis to offset the effects of ballast weights or other external loads such as from a drawbar or 3-point hitch.

A working vehicle has an undercarriage assembly configured to drive the working vehicle over ground and a chassis connected to the undercarriage assembly through a suspension system. The suspension system includes a mechanical spring, the mechanical spring having a first end connected to the undercarriage assembly and a second end. The suspension system includes a hydraulic cylinder, the hydraulic cylinder having a first portion that mounts to the second end of the mechanical spring and a second portion that connects to the chassis such that the mechanical spring and hydraulic cylinder are arranged in series between the undercarriage assembly and the chassis to modify the height of the chassis. The suspension system is configured to level the chassis to offset the effects of ballast weights or other external loads such as from a drawbar or 3-point hitch.

A roller suspension system for a track-driven work vehicle may generally include a support beam and a resilient bushing configured to be coupled to the support beam. The resilient bushing may define a shaft opening. In addition, the system may include a roller wheel assembly having a roller wheel and a roller shaft. The roller wheel may be rotatable relative to the roller shaft. In addition, the roller shaft may be received within the shaft opening of the resilient bushing such that the roller shaft is coupled to the support beam via the resilient bushing.

Disclosed are a special robot with complex terrain adaptive function and a motion and operation method thereof. The special robot comprises a crawler chassis, a shock absorption suspension assembly, a suspension adaptive adjustment assembly and an electronic control assembly. The present disclosure achieves an adaptive angle adjustment on the left and right sides of the shock absorption suspension assembly, including the independent pitch angle and roller angle adjustment on the left and right sides of the shock absorption suspension assembly by the configuration of structures such as the suspension adaptive adjustment assembly and then achieves the adaptability of the robot on complex and tough pavement conditions by the combination with a sensor for pavement perception, which ensures walking performance and attachment ability of mechanisms, further improves the load-bearing performance of the crawler robot, ensures the safety, stability and adaptability of the mobile platform.

The present disclosure provides a suspension system with damping and buffering properties, comprising a suspension assembly, a wheel train assembly and a track assembly, the suspension assembly comprises a suspension lateral plate, an approach plate, a first elastic element, a tensioning assembly, a second elastic element, an oscillating arm plate and a damping element; the wheel train assembly comprises a first approach wheel, a second approach wheel, a first load-bearing wheel, a second load-bearing wheel, a track supporting wheel and an actuation wheel. A high stability of a mobile platform moving through obstacles can be realized by assembling the approach plate, the first elastic plate and the damping element into a loading and shock absorbing module in the present disclosure.

The present disclosure provides a suspension system with damping and buffering properties, comprising a suspension assembly, a wheel train assembly and a track assembly, the suspension assembly comprises a suspension lateral plate, an approach plate, a first elastic element, a tensioning assembly, a second elastic element, an oscillating arm plate and a damping element; the wheel train assembly comprises a first approach wheel, a second approach wheel, a first load-bearing wheel, a second load-bearing wheel, a track supporting wheel and an actuation wheel. A high stability of a mobile platform moving through obstacles can be realized by assembling the approach plate, the first elastic plate and the damping element into a loading and shock absorbing module in the present disclosure.

The present invention generally relates to vehicle and machinery in agriculture, construction, forestry, mining and powersport. It further generally relates to track systems and traction assemblies used with such vehicles. The track assembly includes components having particular features that, alone or in combination, participate in decreasing the vibrations 5 undergone by the vehicle. According to embodiments, split frames are used with suspension, tandem subassemblies, “tridem subassemblies”, adjustable damping components, drive shaft openings, lowering of resulting the track band tension and rosta assemblies.

A suspension system for supporting a ground engaging member relative to a frame is provided. The suspension system includes a torsion axle assembly including an arm, an axle coupled to the ground engaging member and connected to the arm, a shaft connected to the arm and a tube that is connected to the frame. The tube is configured such that at least a portion of the shaft is received in the tube and supported by the tube for rotation relative to the tube and the frame. A lockout assembly includes a coupling mechanism that is selectively operable to fix the shaft against rotational movement with respect to the tube.