36results about How to "Realize the lifting function" patented technology

The invention discloses an electromagnetic lifting appliance for a forklift. The electromagnetic lifting appliance comprises a lifting beam system, a generator set system, a lifting electromagnet control system and a lifting electromagnet system. By means of effective combination of the forklift and the electromagnetic lifting appliance for the forklift, an electromagnet lifting function can be achieved for various sites with no movable power source, and a matched gantry crane and various auxiliary devices are omitted. The electromagnetic lifting appliance has the advantages of being convenient and fast to use, safe, saving and the like.

The invention discloses a maintenance crane used for a large-size wind power device, comprising a steel structure, a raising drive mechanism, a special hanger and an electronic controlling system, wherein, the steel structure is arranged inside an engine room of the wind power device and is provided with the raising drive mechanism and a trolley as well as the traction and anti-shake device. The invention is characterized in that the crane also comprises a weight difference variable multiplying factor raising line which consists of a wire rope, a direction-changing assembly pulley, a trolley assembly pulley, a hanger assembly pulley, a fixed assembly pulley and a fixed point or a balancing device; one end of the wire rope is fixed on the raising drive mechanism, the other end of the wire rope is respectively connected to the special hanger by the weight difference variable multiplying factor raising line, the raising and the dropping of a weight are realized under the control of an electric control system. The invention can replace the existing ultra-large type mobile crane or the floating crane and provides an economic and safe hoisting method and a path for the large-size wind power device.

The invention discloses a method for lifting fluid and a device, which belong to the technical field of fluid delivery. The conventional fluid delivery method needs conversion of other power input, and the energy is needed to be consumed. According to the invention, an upper fluid reservoir and a lower fluid reservoir which are sealed are used; the top part of the upper fluid reservoir and the top part of the lower fluid reservoir are communicated through an air pipe; and an air column is generated between the upper fluid reservoir and the lower fluid reservoir. The device for lifting the fluid uses inner cavities of an upper container and a lower container as the fluid reservoirs; the fluid reservoirs and the air pipe connected with the top parts form fluid pressure feed mechanisms; the two fluid pressure feed mechanisms are connected in parallel or in series; the fluid inlets and the fluid outlets of the upper container and the lower container are respectively provided with a valve; a fluid input source with the fluid level being higher than the bottom surface of the upper fluid reservoir utilizes source fluid potential energy to force the air column to move between the upper fluid reservoir and the lower fluid reservoir; and when the air column moves to the upper fluid reservoir, according to a principle that intensities of pressure at two ends of the air column are equal, fluid in the upper fluid reservoir is pressed to a high position through a pipeline, so that one part of the source fluid can be lifted and delivered, and the energy consumption is saved.

The invention relates to a bottom lifting mechanism for a hydraulic bracket of a thin coal bed. The bottom lifting mechanism comprises a first upper connecting rod, a second upper connecting rod, a first lower connecting rod, a second lower connecting rod, a rib plate and a bottom lifting jack; the upper ends of the first upper connecting rod and the second upper connecting rod are hinged through a pin shaft; the lower end of the first upper connecting rod is hinged with the upper end of the first lower connecting rod; the lower end of the second upper connecting rod is hinged with the upper end of the second lower connecting rod; the position of a hinging shaft of the first upper connecting rod and the first lower connecting rod is hinged with one end of the bottom lifting jack; the other end of the bottom lifting jack is hinged on an ear plate of a base; the position of a hinging shaft of the second upper connecting rod and the second lower connecting rod is hinged with one end of another bottom lifting jack; and the other end of the another bottom lifting jack is hinged on the ear plate of the base. According to the bottom lifting mechanism for the hydraulic bracket of the thin coal bed, the bottom lifting mechanism can be reasonably arranged in a limited space of the base as much as possible so that the space of the bracket for the thin coal bed is enlarged as much as possible; a bottom lifting function can be better realized; and the problem that the thin coal bed cannot be used for lifting a bottom is avoided.

The invention discloses a lifting type nitrogen balancer. The lifting type nitrogen balancer comprises a connecting rod, a cylinder block assembly, a guide pipe, a piston and a supporting seat; the guide pipe is fixed in the cylinder block assembly, and a closed cavity for storing gas is formed by the outer side face of the guide pipe and the inner side face of the cylinder block assembly; the upper end of the piston is arranged on the outer side of the guide pipe in a sleeving mode, movably connected with the outer side face of the guide pipe and meanwhile movably connected with the inner side face of the cylinder block assembly; the lower end of the piston is fixed to the supporting seat, and the supporting seat is fixed to a machine frame above a spindle head; and the connecting rod penetrates through an upper end cover, the guide pipe, the piston and the supporting seat and is connected to the spindle head. By the adoption of the nitrogen balance technology, the high response speedof the balancer is guaranteed. By using the hollow piston for replacing a solid piston, the lifting function of the balancer is achieved, the whole balancer can be installed on the machine frame above the spindle head of a machine tool, and the stroke and space of the balancer can meet the large size requirement of a heavy handpiece since the machine frame is not limited by the space and stroke.

The invention discloses a pneumatic lifting device, comprising a lifting platform, an airbag-type cylinder, a guide rod, a wear-resistant copper sleeve, a lifting protection device, a pin shaft, a guide rod limit block and a fixing frame; the upper surface of the lifting platform In direct contact with the heavy load, the upper surface of the airbag type cylinder is fixedly connected with the lower bottom surface of the lifting platform, and the lower surface of the airbag type cylinder is fixedly connected with the upper part of the fixing frame; the wear-resistant copper sleeve is fixed on the upper part of the fixing frame, and the top of the guide rod is pierced. After passing through the wear-resistant copper sleeve, it is fixedly connected to the fixed sleeve on the lower bottom surface of the lifting platform, and the guide rod limit block is fixed at the bottom of the guide rod; when the main air circuit supplies air to the air bag type cylinder 1, the air bag type cylinder inflates and expands, thereby promoting the lifting The lifting platform and the guide rod move upward along the inner side of the wear-resistant copper sleeve 4 . The invention adopts the airbag type cylinder, which has strong axial and radial load bearing capacity, can realize flexible transmission of bearing capacity, effective adjustment of stroke and efficient control of vibration, and ensures the safety of the whole lifting and transportation process.