A pantograph includes a chassis, a bow, an articulated arm comprising at least one main rod and at least one auxiliary rod, an aileron assembly comprising at least one aileron which is movable relative to the articulated arm, support means for supporting the movable aileron which are movably mounted on the main rod or the auxiliary rod, means for immobilizing the support means relative to the support rod, and orienting means mounted on the main rod or the auxiliary rod. Over a first range of extension of the articulated arm, the orienting means do not act on the support means such that a characteristic angle of the aileron is substantially constant. Over a second range of extension of the articulated arm, the orienting means act on the support means such that the characteristic angle of the aileron varies continuously.

A pantograph includes a chassis, a bow, an articulated arm comprising at least one main rod and at least one auxiliary rod, an aileron assembly comprising at least one aileron which is movable relative to the articulated arm, support means for supporting the movable aileron which are movably mounted on the main rod or the auxiliary rod, means for immobilizing the support means relative to the support rod, and orienting means mounted on the main rod or the auxiliary rod. Over a first range of extension of the articulated arm, the orienting means do not act on the support means such that a characteristic angle of the aileron is substantially constant. Over a second range of extension of the articulated arm, the orienting means act on the support means such that the characteristic angle of the aileron varies continuously.

A mounting structure for supporting one or more pantographs in a machine is disclosed. The mounting structure includes a bottom support structure and a middle support structure removably mounted on the bottom support structure. The middle support structure includes a pair of secondary front legs removably coupled to the pair of primary front legs. The middle support structure includes reinforcement members for removably connecting the top portion of one of a secondary front leg and a rear leg with a deck. The mounting structure includes a top platform removably mounted on the middle support structure for supporting the pantographs. The top platform includes a first supporting member and a second supporting member. Each of the first supporting member and the second supporting member is supported along a first side arm and a second side arm of the deck, respectively.

A mounting structure for supporting one or more pantographs in a machine is disclosed. The mounting structure includes a bottom support structure and a middle support structure removably mounted on the bottom support structure. The middle support structure includes a pair of secondary front legs removably coupled to the pair of primary front legs. The middle support structure includes reinforcement members for removably connecting the top portion of one of a secondary front leg and a rear leg with a deck. The mounting structure includes a top platform removably mounted on the middle support structure for supporting the pantographs. The top platform includes a first supporting member and a second supporting member. Each of the first supporting member and the second supporting member is supported along a first side arm and a second side arm of the deck, respectively.

The invention discloses a three-DOF hybrid damping pantograph, comprising an electric driving transmission system fixed on a base, and collector heads, transverse dampers, parallel support frames as well as longitudinal dampers. Square auxiliary holes are arranged on the base, supporting insulators are arranged on four angles below the base; four transverse dampers are symmetrically fixed on the base, and arranged on the outside of the parallel support frames and connected with the parallel support frames through hinges; four longitudinal dampers are symmetrically fixed on the top of the parallel support frames; the collector heads are connected with the parallel support frames by the longitudinal dampers and separators are arranged on the collector heads. The invention can realize bearing and damping spatially in three directions, avoid pantograph detachment, catenary scraping and other safety accidents, and improve the structural stability of the pantograph and adaptability to the catenary.

The invention discloses a three-DOF hybrid damping pantograph, comprising an electric driving transmission system fixed on a base, and collector heads, transverse dampers, parallel support frames as well as longitudinal dampers. Square auxiliary holes are arranged on the base, supporting insulators are arranged on four angles below the base; four transverse dampers are symmetrically fixed on the base, and arranged on the outside of the parallel support frames and connected with the parallel support frames through hinges; four longitudinal dampers are symmetrically fixed on the top of the parallel support frames; the collector heads are connected with the parallel support frames by the longitudinal dampers and separators are arranged on the collector heads. The invention can realize bearing and damping spatially in three directions, avoid pantograph detachment, catenary scraping and other safety accidents, and improve the structural stability of the pantograph and adaptability to the catenary.

A frame system for a truck can comprise a chassis for connecting to wheels of the truck, and a removable mounting structure attached to the chassis, wherein the removable mounting structure can be configured to support cooling accessories for a propulsion system of the truck and to receive one or more modular components for supporting cooling accessories for different types of propulsion systems.

A frame system for a truck can comprise a chassis for connecting to wheels of the truck, and a removable mounting structure attached to the chassis, wherein the removable mounting structure can be configured to support cooling accessories for a propulsion system of the truck and to receive one or more modular components for supporting cooling accessories for different types of propulsion systems.

A vehicle power supply device is provided. The vehicle power supply device includes: a fixed base; a scissor-fork lifting mechanism, where the scissor-fork lifting mechanism is configured to be driven by a drive device to ascend or descend; and the scissor-fork lifting mechanism includes at least one scissor-fork swing rod set, the scissor-fork swing rod set includes at least one pair of swing rods, each pair of swing rods includes two swing rods that are cross-arranged and are hinged with each other, and two swing rods in a pair of swing rods that is closest to the fixed base are separately mounted on the fixed base; and a power supply head, where the power supply head is mounted on two swing rods in a pair of swing rods that is farthest from the fixed base, and the power supply head is driven by the scissor-fork lifting mechanism to ascend or descend.

A vehicle power supply device is provided. The vehicle power supply device includes: a fixed base; a scissor-fork lifting mechanism, where the scissor-fork lifting mechanism is configured to be driven by a drive device to ascend or descend; and the scissor-fork lifting mechanism includes at least one scissor-fork swing rod set, the scissor-fork swing rod set includes at least one pair of swing rods, each pair of swing rods includes two swing rods that are cross-arranged and are hinged with each other, and two swing rods in a pair of swing rods that is closest to the fixed base are separately mounted on the fixed base; and a power supply head, where the power supply head is mounted on two swing rods in a pair of swing rods that is farthest from the fixed base, and the power supply head is driven by the scissor-fork lifting mechanism to ascend or descend.