A chassis assembly includes: a chassis; a lifting connecting rod assembly arranged on the chassis; and a lifting power assembly, including a lifting bracket pivotally connected to one end of the lifting connecting rod assembly and a lifting drive mechanism arranged on the chassis and connected to the lifting bracket, wherein the lifting bracket includes a sleeve portion having a cylindrical hollow cavity; the lifting drive mechanism includes: a lead screw penetrating through the sleeve portion, a screw nut fixed to the sleeve portion and in thread fit with the lead screw, and a power output unit drivingly connected to the lead screw; and the power output unit is configured to cause the lead screw to rotate to drive the screw nut and the lifting bracket to rise or fall synchronously relative to the chassis. An automatic guided vehicle having the chassis assembly is included.

A chassis assembly includes: a chassis; a lifting connecting rod assembly arranged on the chassis; and a lifting power assembly, including a lifting bracket pivotally connected to one end of the lifting connecting rod assembly and a lifting drive mechanism arranged on the chassis and connected to the lifting bracket, wherein the lifting bracket includes a sleeve portion having a cylindrical hollow cavity; the lifting drive mechanism includes: a lead screw penetrating through the sleeve portion, a screw nut fixed to the sleeve portion and in thread fit with the lead screw, and a power output unit drivingly connected to the lead screw; and the power output unit is configured to cause the lead screw to rotate to drive the screw nut and the lifting bracket to rise or fall synchronously relative to the chassis. An automatic guided vehicle having the chassis assembly is included.

Method and related system to set-up and control a system for lifting loads, preferably motor vehicles, includes causing the user to be positioned at each column to be registered as belonging to the system and to provide an activation command in the user interface of each column to register it as belonging to the lifting system, the user interface providing no information to the user about the position of that column in relation to the other columns and to the load. The user then moves each registered column to any of the operating positions for lifting the load; by acting on the user interface of one of the registered columns, assigns to that column the role of command column; and commands, by acting on the user interface of the command column, the simultaneous lifting/lowering of at least one or all the columns of the lifting system.

A mobile platform carrying system is configured to be adjusted to remain level. The mobile platform carrying system includes a chassis, attached to a front axle assembly and a rear axle assembly. The front axle assembly includes a front axle housing through which a front axle telescoping portion extends. A first front wheel housing is joined to the front axle telescoping portion, and a first front actuator. The first front actuator is adapted to adjust a front linear position of the first front wheel housing relative to the chassis. A first front wheel is joined to the first front wheel housing with a first front hinge. The rear axle assembly is similarly arranged.

A mobile platform carrying system is configured to be adjusted to remain level. The mobile platform carrying system includes a chassis, attached to a front axle assembly and a rear axle assembly. The front axle assembly includes a front axle housing through which a front axle telescoping portion extends. A first front wheel housing is joined to the front axle telescoping portion, and a first front actuator. The first front actuator is adapted to adjust a front linear position of the first front wheel housing relative to the chassis. A first front wheel is joined to the first front wheel housing with a first front hinge. The rear axle assembly is similarly arranged.

The height of a platform relative to a support surface is adjustable by rotating a drive shaft to actuate a first height-adjusting device and a second height-adjusting device, thereby changing the height of the respective ends of the first and second height-adjusting devices relative to the support surface. The drive shaft is selectively drivable by either a drive motor or a manually-operable drive.

The height of a platform relative to a support surface is adjustable by rotating a drive shaft to actuate a first height-adjusting device and a second height-adjusting device, thereby changing the height of the respective ends of the first and second height-adjusting devices relative to the support surface. The drive shaft is selectively drivable by either a drive motor or a manually-operable drive.

A chassis assembly includes: a chassis; a lifting connecting rod assembly arranged on the chassis; and a lifting power assembly, including a lifting bracket pivotally connected to one end of the lifting connecting rod assembly and a lifting drive mechanism arranged on the chassis and connected to the lifting bracket, wherein the lifting bracket includes a sleeve portion having a cylindrical hollow cavity; the lifting drive mechanism includes: a lead screw penetrating through the sleeve portion, a screw nut fixed to the sleeve portion and in thread fit with the lead screw, and a power output unit drivingly connected to the lead screw; and the power output unit is configured to cause the lead screw to rotate to drive the screw nut and the lifting bracket to rise or fall synchronously relative to the chassis. An automatic guided vehicle having the chassis assembly is included.

A chassis assembly includes: a chassis; a lifting connecting rod assembly arranged on the chassis; and a lifting power assembly, including a lifting bracket pivotally connected to one end of the lifting connecting rod assembly and a lifting drive mechanism arranged on the chassis and connected to the lifting bracket, wherein the lifting bracket includes a sleeve portion having a cylindrical hollow cavity; the lifting drive mechanism includes: a lead screw penetrating through the sleeve portion, a screw nut fixed to the sleeve portion and in thread fit with the lead screw, and a power output unit drivingly connected to the lead screw; and the power output unit is configured to cause the lead screw to rotate to drive the screw nut and the lifting bracket to rise or fall synchronously relative to the chassis. An automatic guided vehicle having the chassis assembly is included.

Aspects herein relate to using motor velocity as feedback for controlling the extension or retraction of jacks for control of the angular orientation of a structure, or other means for accomplishing the same. Embodiments include a structure orientation control apparatus comprising one or more jacks configured to support a structure, one or more jack drive mechanisms coupled to at least one of the one or more jacks, the one or more jack drive mechanisms configured to extend or retract the one or more jacks, and a jack controller configured to cause the one or more jack drive mechanisms to extend or retract the one or more jacks based on a jack command. The jack controller may be configured to monitor one or more jack velocities during extension or retraction.