6022 results about "Self weight" patented technology

Provided is a substrate-processing device capable of preventing a top lid from sagging downward by the own weight of the substrate-processing device and/or a vacuum suction force generated by a vacuum pump and/or thermal shock at high temperature process, in a chamber including a plurality of reactors. Also, provided is a rotating shaft for transferring a substrate between the plurality of reactors.

The invention relates to a light-weight six-shaft universal robot. A shaft seat is fixedly arranged on an arm shaft, a shaft seat protecting box is fixedly arranged on the shaft seat, a third-shaft driving motor, a fourth-shaft driving motor, a fifth-shaft driving motor and a sixth-shaft driving motor are arranged in the shaft seat protecting box, a small-arm rod casing and a small-arm lengthening rod casing are respectively and fixedly arranged at the front part and the back part of a small-arm speed reducer, a sixth shaft is inserted and sheathed in a fifth shaft, the fifth shaft is inserted and sheathed in a fourth shaft, the fourth shaft is inserted and sheathed into the small-arm rod casing, the small-arm speed reducer and the small-arm lengthening rod casing, a fourth-shaft driven gear, a fifth-shaft driven gear and a sixth-shaft driven gear are respectively and fixedly arranged on the fourth shaft, the fifth shaft and the sixth shaft, and the length of the small-arm rod casing is smaller than 100mm. The light-weight six-shaft universal robot has the advantages that the torque load required by the self weight is effectively reduced, the traditional balance cylinder device is not needed, the balance of a swinging arm during the work can also be met, and the machine structure is simplified. The effective protection effect on a motor is also realized through a tight protecting cover.

A compact, lightweight manipulation system that excels in operability and has a force feedback capability is provided.

When automatic operation of a slave manipulator105 that follows manual operation of a master manipulator 101 is bilaterally controlled by means of communication, the force acting on the slave manipulator is fed back to the master manipulator by operating the master manipulator primarily under electrically-driven speed control and the slave manipulator primarily under pneumatically-driven force control. Therefore, in the master manipulator, it is not necessary to compensate for the dynamics and the self-weight of the master manipulator in the motion range of a user, allowing highly accurate, broadband positional control, which is specific to an electrically-driven system, and in the slave manipulator, nonlinearity characteristics specific to a pneumatically-driven system presents passive softness, provides a high mass-to-output ratio, and produces a large force.

Novel devices and systems are provided to provide safe navigation through cancellous bone marrow spaces attendant to the harvesting of bone marrow. In accordance with a featured embodiment, these comprise a rigid, self re-directing stylet having a proximal, mating end for cooperating with a cannula handle together with a distal end having a convex geometry, such as a dome.

The invention provides a light-type triaxial ISP (inertially stabilized platform) system using an aerial remote sensing technology, comprising a base, four linear vibration dampers, a rolling framework, a pitching framework, a direction framework, two MEMS (micro-electromechanical system) accelerometers, three MEMES gyroscopes, three DC (direct current) brushless torque motors, three sets of reduction gears, three photoelectric encoders and three framework servo control circuits, wherein the base is connected with a plane by the four linear vibration dampers so as to separate linear vibration; the rolling framework and the pitching framework are used for tracking the local geographical level and rotate around the X axis and the Y axis respectively; and the direction framework is used for tracking heading and rotates around the Z axis. The control part drives the three DC brushless motor frameworks to carry out compensation isolation on angular motion of the plane in accordance with angular rate information of the frameworks provided by the three MEMS gyroscopes and attitude information provided by a POS (position and orientation system) or the two EMES accelerators. The light-type triaxial ISP system has the characteristics of high accuracy, high load bearing/self weight ratio, wide stable range, small volume and light weight as well as self-attitude reference, and is suitable for stabilizing the camera visual axis in light-small type aerial remote sensing systems.

The invention provides a pressure adjusting structure comprising a valve seat, an exhaust tube and a magnetic valve body. The lower end of the exhausting tube passes through the valve seat; the magnetic valve body sleeves the upper end port of the exhausting tube; a magnetic cushion block is arranged between the valve seat and the magnetic valve body; and the magnetic cushion block is connected with the valve seat via a magnetic cushion block adjusting structure adjusting up-down positions of the magnetic cushion block. When a pressure limiting value of a pressure-limiting valve has to be adjusted, the up-down positions of the magnetic cushion block is adjusted by the magnetic cushion block adjusting structure, so a distance from the magnetic gasket to the magnetic valve body can be changed; when the distance changes, magnetic field force between the magnetic cushion block and the magnetic valve body can be changed; the pressure limiting value of the pressure limiting valve is the self weight of the magnetic valve body and the magnetic field force between the pressure limiting valve and the magnetic valve body; the pressure limiting value of the pressure limiting valve can be adjusted and food cooking effect of the pressure cooker can be improved; meanwhile, the use of elastic components such as springs can be avoided in the adjusting structure, so fewer components are required; and the pressure adjusting structure is simply structured, convenient to assembly and has high reliability.

The invention relates to a two-freedom-degree heavy-load tracking stabilized platform system which comprises a base, four line vibration dampers, a position framework, a pitching framework, external loads (a photoelectric imaging device, two micro-electromechanical system (MEMS) accelerometers two MEMS gyroscopes and a position orientation system (POS)), two direct current (DC) torque motors with brushes, two photoelectric coded discs and two framework control circuits. The base is connected with an airplane through line vibration dampers for isolating airplane line vibration. The position framework is supported by the base and carries a pitching frame component to achieve gyration within 0 degree to 360 degrees. The pitching framework is supported by a position frame and carries external loads to achieve gyration within -90 degrees to 0 degree. A control part drives a motor to enable the framework to rotate according to frame angular rate information which is provided by the gyroscopes and attitude information which is provided by the POS or the accelerometers, so that airplane angular motion is compensated and isolated. The two-freedom-degree heavy-load tracking stabilized platform system has the advantages of being high in precision, large in ration between load and self weight, standard in self attitude, and suitable for camera boresight stability in light small air monitoring systems.

The invention relates to composite light building block and preparation method thereof. The slurry comprises brine, light burnt powder, filler, air producing agent, foam stabilizer, adjusting agent, cement, water and aggregate. Taking a 60*15*25cm building block with the volume weight of 18kg as an example, the slurry is prepared from the following raw material in percentage by weight: 30-50% of brine, 0.008-0.01% of air producing agent, 25-35% of light burnt powder, 0.0005-0.001% of foam stabilizer, 20-30% of filler, and the balance of adjusting agent. The invention can improve the processing property, increases the slurry flowability, is easy to cast in forming, has short production period and low manufacturing cost, increases the activity, enhances the impermeability and post strength, reduces dry shrinkage, and prevents cracking. The composite light building block has the advantages of light weight, high strength, small volume density, low heat conduction coefficient, heat insulation, sound insulation, fire prevention, heat isolation, freezing and melting resistance, little dry shrinkage, and the like. By using the gas-added building block to replace the traditional bearing building block as the building wall filling material, the self weight of the building structure is decreased, the foundation burden is reduced, and the energy and material are saved.

The invention relates to the technical field of revetments and provides a construction method of a cast-in-site planting concrete revetment. The concrete revetment manufactured by utilizing the method has the advantages of high strength, good overall landscape effect, strong gradient adaptability, no water-body pollution, water erosion resistance, larger revetment self-weight, safety and reliability, and a water body can be effectively protected. The construction method comprises the following steps of 1, prefabricating acid nutrient soil; 2, arranging a side slope and pouring a concrete lattice frame; 3, pre-placing a nutrient layer; 4, laying inverted-filtering geotechnical cloth on the nutrient layer; 5, pouring planting concrete; 6 carrying out water-preserving, heat-preserving, fertilizer-preserving and alkalinity-reducing processing on the planting concrete; and 7, finally, uniformly spreading the seeds of greening grass and the nutrient soil onto the surface of the planting concrete to form a planting layer with the thickness of 1.8 to 2.2cm, and covering a non-woven fabric onto the surface of the planting layer for watering, moisture preservation and maintenance until the greening grass covers the whole green area.

An adjustable apparatus for performing bodyweight exercises comprises a pair of side frames. The forward struts of the side frames are inclined rearwards to allow a user to exercise unimpeded. The side frames are spaced apart in a secure opposed relationship by cross members sufficiently to allow a user to exercise between them. Stabilising extensions at the base ensure the apparatus is safe to use. A pair of elongate rigid handles that project forward is demountably secured to the forward struts of the side frames. These may be moved between a plurality of pre-determined positions to allow various exercises to be performed. A cushioned rigid member for supporting a user's lower body is suspended between the pair of side frames. This lower body support may be raised and lowered between and secured in a plurality of positions. The lower body support assists the user by supporting a proportion of his or her bodyweight. The lower body support may swing freely to allow fluid exercise movement. Adjusting the relative positions of the elongate handles and lower body support allows variation in the angle of the user's body. The apparatus may further comprise a cushioning element at the base for the user's comfort. Additional detachable cross bars and a body support strap may be attached to the handles or structure of the apparatus to allow further variation in exercises. Furthermore embodiments of the invention may be designed to allow folding for storage.

The invention relates to a touch-plate display device, comprising a touch-plate unit (11) arranged at the front side of the display unit (1) and inputted with information through touch, wherein, the touch-plate unit (11) is adhered at the front of the display unit through a transparent adhesive agent (17); and the touch-plate unit (11) is provided with a glass panel (12 and 13) for covering the display unit (1). The glass panel (12 and 13) is flat, the surface of which is grinded mechanically when being impacted by dissolved liquid with an acceleration which is larger than the acceleration produced by the self weight after spraying out the dissolved liquid, with a thickness smaller than 0.5mm and a maximum surface roughness smaller than 0.5mum. The invention provides a thin touch-plate display device.

The invention discloses a ground line device of a power transmission line tower, and the device comprises a line clamp which consists of two articulated splints and a torsion spring, a block pin is arranged between the two splints, the line clamp is connected with a grounding seat by a flexible copper wire, the tail ends of the two splints are respectively provided with symmetric connecting plates, opposite surfaces of the two connecting plates are symmetrically provided with clamping blocks which are respectively provided with cross clamping slots, and one end of the flexible copper wire which is connected with the line clamp correspondingly are divided into two connecting terminals and are respectively connected with the two connecting plates. A dedicated hitching device of the ground line device comprises an insulating bar, the front end of which is provided with a connecting shaft, and the front end of the connecting shaft is provided with a cross shaft head which is matched with the cross clamping slot of the ground line device of the power transmission line tower. The device has the advantages of simple structure, convenient use, time-saving and labor-saving operation, high safety performance, light self-weight, easy carrying and labor-saving disassembly, and the device can realize the ground line hitching on various towers at one step and is especially suitable for a tower with a large rotation angle and a terminal tower.

The present invention belongs to the building material technology field, in particular to relate to a self-compact strengthened fibre active concrete and the corresponding preparation method. The present invention is made of cement, silicon ash, quartz powder, quartz sand, water reducer and steel fibre or polypropylene fibre or the mixing fibre between the steel fibre and the polypropylene fibre according to the weight ratio. By using the new type water reducer, the present invention makes the concrete not need any vibration when being molded and the concrete can rely on the self weight to be filled in each angle of the building mould. Besides, the concrete can rely on the self weight to reach the compact situation. By using the rational fibre, both the compression strength and the folding strength can be enhanced greatly, especially for the folding strength, the enhanced degree is much greater. And moreover, the tenacity of the RPC is also enhanced greatly. The self-compact strengthened fibre active concrete in the present invention can simplify the manufacturing process greatly and provide much wider application foreground for manufacturing thin-wall products, slight components or other components with novel structure shape.

The invention discloses a design method for longitudinal pre-stressing tendons of a variable-cross-section pre-stressed concrete continuous bridge. The optimization design method for the longitudinal pre-stressing tendons of the pre-stressed concrete continuous bridge is built based on the design principle of the pre-stressed degree and through combining an analytic method with a finite element method and compressively considering dead load and live load action effects. A three moment equation of the variable-cross-section pre-stressed concrete continuous box girder bridge is established to solve the internal force of the structure under the action of the self weight on the basis of the average bending moment method. A calculation formula of pre-stressed effective pre-pressure is built through a load equal effect method and a unit load method; a creep effect calculation formula is built through a force method; the temperature effect and the automobile load effect are calculated through the finite element method; and a variable-cross-section statically indeterminate structure pre-stressing tendon reinforcement calculation formula is obtained through combination of the stress ratio with the definition of the competitive pre-stressed degree.

The invention discloses a six-degree-of-freedom humanoid robot arm, and relates to a robot arm. The invention aims to solve the problems that the existing robot arm is cumbersome in joint structure, heavy in self weight, low in load bearing ratio and complicated to control. A shoulder rotating joint, a shoulder joint, an upper arm, an elbow rotating joint, a elbow swing joint, a fore arm, a wrist rotating joint, a wrist swing and a hand are sequentially arranged from top to bottom, wherein an arm swing motor is connected with a worm by virtue of a conveyor belt, an arm rotating motor is connected with a shoulder swing support by virtue of a conveyor belt, an upper arm shell is arranged between a shoulder joint and an elbow joint, an elbow rotating drive motor and a speed reducer are sequentially arranged in the upper arm shell from top to bottom, an elbow swing joint motor is arranged in an elbow joint shell and is connected with an elbow joint conveyor belt, an elbow joint speed reducer is arranged in the elbow joint shell, a hand connecting support is arranged between the fore arm and the hand, a wrist joint swing motor is arranged on one side of the hand connecting support, and a wrist joint rotating motor is arranged at the upper end of the hand connecting support. The six-degree-of-freedom humanoid robot arm is applied to a humanoid robot.

A multi-operating mode frame type portable landslide testing device for a geomechanical model belongs to the field of geological hazard model test. The testing device comprises a frame-beam-type testing bed, a rainfall simulator, a water level regulator and a self-weight horizontal loading mechanism, wherein the frame-beam-type testing bed mainly comprises a cuboid framework, a front panel, a rear panel and a base plate; the rainfall simulator is arranged at the top of the frame-beam-type testing bed and comprises a plurality of spraying pipes and nozzles on the spraying pipes and is used for simulating rainfall in the frame-beam-type testing bed; the water level regulator comprises a left-side trough and a right-side trough respectively formed on the left and the right sides of the frame-beam-type testing bed, and a plurality of drainage holes are respectively formed on the right panel of the left-side trough and the left panel of the right-side trough and used for changing the water levels of water level simulation libraries in the left-side trough and the right-side trough; and the self-weight horizontal loading mechanism is arranged above the right-side trough and used for bearing weights, so as to exert horizontal load to the landslide model in the frame-beam-type testing bed.