A system includes an outrigger assembly configured to be coupled to a chassis of the vehicle. The outrigger assembly includes a pair of outriggers. Each outrigger of the pair of outriggers includes an arm and a support foot. The arm is selectively extendable laterally outward at a fixed angle relative a horizontal.

To reduce the number of places where dimension control regarding an attachment position of a coupling portion to a structure is required. A first coupling portion includes a first pin receiving portion into which a coupling pin can be inserted, and a load transmitting portion integrally provided with the first pin receiving portion. A second coupling portion includes a second pin receiving portion into which the coupling pin can be inserted, and a load receiving portion integrally provided with the second pin receiving portion. The first pin receiving portion and the second pin receiving portion match with each other so as to detachably attach the coupling pin in a state where the load transmitting portion and the load receiving portion are in contact with each other.

A hydraulic steering system, comprising a steering pump and a plurality of digital steering cylinder assemblies. Each digital steering cylinder assembly includes a steering cylinder and a digital hydraulic valve configured to selectively communicate a rodless cavity of the steering cylinder with one of the steering pump and a return oil circuit, and communicate a rod cavity of the steering cylinder with the other of the steering pump and the return oil circuit. A controller can be configured to emit a digital pulse signal to a motor and cause the digital hydraulic valve to move towards a first working position or a second working position. A mechanical feedback structure can be configured to be driven by a piston rod of the steering cylinder when the valve core of the digital hydraulic valve moves towards the first working position or the second working position, so as to drive the digital hydraulic valve to return to a neutral position. The system can improve the control precision and the response speed of the steering system.

A mid-mount fire apparatus includes a chassis, a body assembly coupled to the chassis, a front cabin coupled to the chassis forward of the body assembly, a front axle coupled to the chassis, a rear axle coupled to the chassis, a stability system including a single set of outriggers positioned between the front axle and the rear axle, and a ladder assembly including a base ladder section and a plurality of extensible ladder sections. The base ladder section has a proximal end that is coupled to the chassis rearward of the front cabin and between the front axle and the rear axle. The ladder assembly has a horizontal reach of at least 88 feet.

An embodiment relates to a mobile crane having an articulated body and an elongate boom attached to the body, the boom being for carrying a load when the crane is stationary and while the crane is mobile. The boom is articulated to provide a movement for lifting and lowering an end of the boom, and the boom is further articulated to provide a movement of the boom laterally. A further embodiment relates to controlling swing of a load carried at the end of a boom of a mobile crane by varying lateral orientation of the boom.

Lift apparatus for selectively lifting and storing removable components of a convertible vehicle. The lift apparatuses including a frame and a lift mechanism. The frame is configured to removably mount to a tow hitch of a towing vehicle. The frame includes a base, a post, and a boom. The base is configured to removably mount to the tow hitch. The post extends vertically from the base. The boom is pivotally mounted to the post and configured to pivot between a travel position where the boom is aligned with the post and a lift position where the boom extends transverse to the post. The lift mechanism is operatively supported on the frame and configured to selectively lift a removable top of the convertible vehicle.

A portable lifting machine is provided including a rollable base, a base post extending upward from the rollable base, a mast pivotally attached to the base post at a pivot point, and a load lifting assembly attached to the mast and selectively operable to lift a load. The rollable base may include a plurality of legs selectively rotatable about the base between an inward orientation and an outward orientation. The pivoting of the mast on the base post and the rotatability of the plurality of legs on the base can allow the portable lifting machine to move to an orientation where it can be rolled through doorways or other confined spaces.

This crane comprises a traveling vehicle body that travels through use of a motor driven by a power supply unit, and a first cooling system for cooling the motor, the first cooling system having a plurality of cooling devices that are distributed in the traveling vehicle body and connected in parallel with each other, and that cool a fluid that flows through a circuit of the first cooling system.

The invention discloses an extended-range hybrid power system and a control method therefor, and a crane, and belongs to the technical field of construction machinery. The extended-range hybrid power system comprises a power battery, an all-in-one controller, a first motor, a second motor and an engine, wherein the first motor is connected to a lower traveling mechanism; the engine is connected to the second motor, and the second motor is connected to an upper operating mechanism; the power battery, the first motor and the second motor are connected to the all-in-one motor, and the all-in-one motor is connected to an external power supply.

A method and apparatus to invert a robotic arm, includes an angling adaptor and swing arm. The angling adaptor includes a truck or crane boom head adaptor and a hinge coupler. The swing arm extends downwardly from the angling adaptor and may include a boom adaptor arm and a jib. The lower end of the swing arm is mounted to the main beam of the robotic arm. The hinge coupler mounts to the upper end of the crane or truck boom. The robotic arm is mounted on the swing arm so as to downwardly orient the insulators on the robotic arm. A lowermost end of each insulator is adapted for releasably holding an electrical bypass which may include a bus bar and electrical cable jumpers.