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7075 results about "Telescopic cylinder" patented technology

Telescopic cylinders are a special design of a hydraulic cylinder or pneumatic cylinder as well as pulley system which provide an exceptionally long output travel from a very compact retracted length. Typically the collapsed length of a telescopic cylinder is 20 to 40% of the fully extended length depending on the number of stages. Some pneumatic telescoping units are manufactured with retracted lengths of under 15% of overall extended unit length. This feature is very attractive to machine design engineers when a conventional single stage rod style actuator will not fit in an application to produce the required output stroke.

Device for improving water quality of laminated mixed oxygenated water

The invention discloses a device for improving water quality of laminated mixed oxygenated water. The device comprises an elevating cylinder, an aerating chamber, a gas storing chamber, an air releasing pipe, a guide plate, a perforated plate, a micro-pore aerator, a powerless automatic switching device and an anchoring pier, wherein the elevating cylinder is vertically arranged in water; the aerating chamber and the gas storing chamber are formed at the middle position of a reservoir; the micro-pore aerator is arranged at a position close to the bottom of the reservoir; a full-layer mixed oxygenation function and an isothermal layer mixed oxygenation function are integrated organically; and a telescopic cylinder for adjusting the height of the device is arranged between the aerating chamber and the micro-pore aerator, so that the stability of the entire device is improved. Through improvements on a multifunctional water pumping aerator, full-layer mixed oxygenation and isothermal layer mixed oxygenation are performed respectively by using the device for improving water quality of laminated mixed oxygenated water according to the water quality improving requirement, so that the problem of water quality pollution in the reservoir can be solved at lower energy consumption, and the aim of organically unifying two functions, the water quality improving benefit and the economic benefit is fulfilled.
Owner:西安唯源环保科技有限公司

Hydraulic oil distribution controlling device for crane hydraulic system

The invention relates to a hydraulic oil distributing and controlling device of a crane hydraulic system, which consists of a first oil inlet and a second oil inlet which are used for communicating with at least two duplex pumps, a first oil outlet and a second oil outlet which are used for supplying oil for a main hoisting motor and an auxiliary hoisting motor as well as a third oil outlet and a fourth oil outlet which are used for supplying oil for a derricking cylinder and a telescopic cylinder; the first oil inlet and the second oil inlet are communicated with the four oil outlets through an oil circuit; control valves are arranged at least on the communicating oil circuits of the first oil inlet and the second oil outlet as well as the third oil outlet and the fourth oil outlet; the control valves are arranged at least on the communicating oil circuits of the second oil inlet and the first oil outlet as well as the second oil outlet and the third oil outlet. The hydraulic oil distributing and controlling device can realize interfluent oil supply of the two duplex pumps so as to improve the operation speed of the corresponding operating condition and operation efficiency, and can use any duplex pump to supply oil respectively to realize a flexible and convenient flow distribution proposal combined by diversified operating conditions.
Owner:SANY AUTOMOBILE HOISTING MACHINERY

Two-sided paint spraying device used for building timber spray finishing

The invention discloses a two-sided paint spraying device used for building timber spray finishing. The two-sided paint spraying device used for building timber spray finishing comprises a base, the two sides of the upper end of the base are connected with supporting frames, the upper ends of the supporting frames are connected with top plates, and the middles of the top plates are connected with a drive box. The two sides of the lower end of the base are connected with supporting legs, the right end of the left supporting leg is connected with a drive motor, the right end of the drive motor is connected with a drive shaft, and the right end of the drive shaft is connected with a driving gear. The upper end of the driving gear is meshed with a driven gear, the middle of the driven gear is connected with a transmission shaft, the two ends of the transmission shaft are connected with transmission belt wheels, the upper end of each transmission belt wheel is connected with a turnover belt wheel through a belt, and the middle of each transmission belt wheel is connected with a turnover shaft. The inner end of each turnover shaft is connected with a telescopic cylinder, the inner side of each telescopic cylinder is connected with a telescopic shaft, each telescopic shaft is connected with a U-shaped plate, and the upper end and the lower end of each U-shaped plate are separately connected with a clamping device. The two-sided paint spraying device used for building timber spray finishing realizes two-sided spray finishing of building timber; a horizontal paint spraying mode is adopted, and compared with a vertical paint spraying mode, evenness of timber paint spraying is increased.
Owner:CHANGSHA WUDAO IND DESIGN CO LTD

Rotary wall board paint spraying bracket

The invention discloses a rotary wall board paint spraying bracket. The rotary wall board paint spraying bracket comprises a door fixture, wherein a bearing platform is arranged below a cross beam of the door fixture; a rectangular slideway 1 is machined on the lower surface of the cross beam of the door fixture; a slide rail 1 is arranged inside the rectangular slideway 1; an electric trolley 1 is arranged on the slide rail 1; a telescopic cylinder 1 with a downward telescopic end is arranged on the lower surface of the electric trolley 1; a mounting box is arranged at the telescopic end of the telescopic cylinder 1; a circular through hole is formed in the center of the lower surface of the mounting box; a spray head is embedded into the circular through hole; a controller is arranged on the front surface of the bearing platform; a storage battery is arranged inside the controller; the storage battery is electrically connected with the controller; and the controller is electrically connected with the electric trolley 1, the telescopic cylinder 1, electric trolleys 2, telescopic cylinders 2, rotary motors and clamping claws. The rotary wall board paint spraying bracket has the beneficial effects of simple operation, convenience in use, automatic rotary paint spraying treatment, high working efficiency, high convenience and practicality.
Owner:江苏凯蒂家居用品有限公司

Synchronous dust extraction steel tube piece inner wall polishing device

The invention discloses a synchronous dust extraction steel tube piece inner wall polishing device which comprises an outer box and a base. A transverse support is arranged on the right side of the top of the base, a second stretchable cylinder is arranged on the left side of the transverse support, a rotary barrel is rotationally arranged on a vertical support, an eccentric gear is installed at the left end of the rotary barrel, a fixing rod is installed on the left side of the eccentric gear, and a polishing rod is installed at the left end of the fixing rod; and a driven belt wheel on the rotary barrel is connected with a driving belt wheel through a triangular belt, the driving belt wheel is fixedly installed on an output shaft of a driving motor, and the lower end of a piston rod of a first stretchable cylinder on the left side of the outer box and the upper end of a piston rod of a third stretchable cylinder are provided with an upper clamping plate and a lower clamping plate corresponding. By means of the synchronous dust extraction steel tube piece inner wall polishing device, the steel tube polishing time is greatly saved, steel tube polishing is more sufficient, the steel tube polishing quality and working efficiency are improved, synchronous dust extraction during polishing is achieved, the clean and tidy working environment is kept, and the health of workers is facilitated.
Owner:HEFEI ZHIHUI LONGTUTENG INTPROP CO LTD

Light weight parallel manipulators using active/passive cables

The present invention provides parallel, cable based robotic manipulators, for use in different applications such as ultra high-speed robots or positioning devices with between three to six degrees of freedom. The manipulators provide more options for the number of degrees of freedom and also more simplicity compared to the current cable-based robots. The general structure of these manipulators includes a base platform, a moving platform or end effector, an extensible or telescoping central post connecting the base to moving platform to apply a pushing force to the platforms. The central post can apply the force by an actuator (active), or spring or air pressure (passive) using telescoping cylinders. The robotic manipulators use a combination of active and passive tensile (cable) members, and collapsible and rigid links to maximize the benefits of both pure cable and conventional parallel mechanisms. Different embodiments of the robotic manipulators use either active cables only, passive cables only, or combinations of active and passive cables. An active cable is one whose length is varied by means of a winch. A passive cable is one whose length is constant and which is used to provide a mechanical constraint. These mechanisms reduce the moving inertia significantly to enhance the operational speed of the robots. They also provide a simpler, more cost effective way to manufacture parallel mechanisms for use in robotic applications.
Owner:KHAJEPOUR AMIR +3

Loading and unloading manipulator

The invention discloses a loading and unloading manipulator which is characterized by comprising a rotary workpiece module, a loading module, a clamping module, an unloading module and a motion control system module, wherein the rotary workpiece module mainly comprises a bracket, a telescopic swinging cylinder, a connecting plate, a rotary motion device, a first linear slide rail and a rotary paw; the rotation of the telescopic swinging cylinder drives the rotary paw to rotate; the expansion and the contraction of the telescopic swinging cylinder drives the rotary paw to expand and contract along the first linear slide rail; the loading module mainly comprises a loading paw device, a tiny moving mechanism, a movable large cylinder and a second slide rail; the expansion and the contraction of the movable large cylinder drives the loading paw device to move forwards and backwards along an axis X under the driving of the tiny moving mechanism; the clamping module comprises two cylinders which are perpendicularly connected with each other; the vertical cylinder expands and contracts in an axis Z direction, and the horizontal cylinder expands and contracts in an axis Y direction, so as to clamp and release a workpiece; and the unloading module comprises an unloading pusher mechanism, an inclined plane delivery mechanism and an unloading conveyor belt.
Owner:HEBEI UNIV OF TECH

Automobile crane and device with multiple sections of telescopic jibs thereof

The invention discloses a device with multiple sections of telescopic jibs, comprising a fringe connection part and a bolt connection part; the fringe connection part comprises at least two sections of telescopic jibs located in the inside and connected with a travel cable through a turning wheel; the bolt connection part comprises at least one section of telescopic jib located at the outside and connected with a cylinder pin through a jib pin and a basic jib (211); a cylinder tube (281) of a telescopic cylinder (28) is connected with the outmost section of telescopic jib of the fringe connection part. Therefore, in the extending processing of the telescopic jibs, each section of telescopic jib of the fringe connection part extends synchronously, which increases the extending speed of the device with multiple sections of telescopic jibs as well as the working efficiency; at the same time, because the fringe connection part is connected with the bolt connection part by the jib pin (262), and the axial force between the telescopic jibs is transmitted through the jib pin, the stress condition of the telescopic cylinder (28) is improved, the size is reduced properly so as to reduce the cost. The invention further discloses an automobile crane comprising the device with multiple sections of telescopic jibs.
Owner:SANY AUTOMOBILE MFG CO LTD

Novel quick digging and anchoring integrated machine for rectangular coal roadway

The invention discloses a novel quick digging and anchoring integrated machine for a rectangular coal roadway, which comprises a heading machine, a temporary support system, an anchoring system, a conveying system and a dust removing system, and also comprises a support system, wherein a sealing device is arranged between the head of the heading machine and the front of the support system; the sealing device comprises a main body plate, a movable sealing plate and left and right movable sealing plates; support hydraulic cylinders are arranged on the main body plate and an upper movable sealing plate bracket; support hydraulic cylinders are arranged on the main body plate and left and right movable sealing plate brackets as well; meanwhile, an upper movable sealing plate, the left and right movable sealing plates are provided with flexible sealing belts; the front end of a dust removing pipeline of the dust removing system is installed on the main body plate of the sealing device; and the dust removing pipeline is communicated with the space in the front part of the sealing device. The novel quick digging and anchoring integrated machine for the rectangular coal roadway, provided by the invention, employs a novel telescopic cylinder to cut and mold the width of a roadway in one step, therefore, the high efficiency is achieved, and in addition, the damage to a base plate due to repeated displacement is avoided; through cooperation of adjusting oil cylinders with flexible sealing, a top plate and lateral walls are very adaptive, so that dust is prevented from rushing into a rear working space; and meanwhile, a working environment is improved.
Owner:CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD

Electric automatic levelling brace

The invention relates to an electric automatic levelling brace for realizing multipoint electric automatic levelling, and aims to provide an electric automatic levelling brace with large lifting weight, rapid and reliable touchdown, good repeatability of levelling precision, high precision, safety, convenience, convenient maintenance and simple electric connection. The electric automatic levelling brace comprises a levelling bearing disc connected with a levelling brace cylinder body and a direct current servo motor with an electric control unit. The top of the levelling brace cylinder body is provided with a transmission chain which is connected with an output shaft of a speed reducer and a leading screw pair for rotary motion; the leading screw pair drives a levelling telescopic cylinder body manufactured with a screw and the levelling bearing disc fixedly connected with the leading screw pair together to do linear lifting motion; a microswitch for feeding back the lifting position to an external control system is arranged on the cylinder wall of the levelling brace cylinder body; a small displacement triggering shaft records the moving position, triggers the microswitch at a triggering point and transfers an electrical signal of the lifting position of the levelling brace to the outside; and the small displacement triggering shaft is connected external control equipment through the microswitch and forms a closed loop levelling system with the servo motor connected with the speed reducer .
Owner:LINGBAYI ELECTRONICS GRP
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