357results about How to "Easy to change directions" patented technology

The invention relates to a multiturn absolute rotary encoder based on a rotary transformer, which is characterized in that: a sensor is displaced by taking the rotary transformer as a shaft angle; a shaft angle decoding circuit can be formed by adopting DSP as a core processor; a sine wave which can be controlled by frequency and phase in the method that the circuit is synthesized by direct digital frequency for the numerical control of an oscillator; and the sine wave is directly taken as an excitation rotary transformer signal via a power amplifier and a filter circuit; the rotary transformer signal is transferred to A/D converter after being run through a matching circuit of electronic transformer; after sampling, digital filtering and digital signal processing, the sine and cosine value for the actual angle of two channels is generated; the angle error change is tracked dynamically by the PI algorithm; the mechanical displacement of the rotating object is converted into digital shaft angle position and speed. The multiturn absolute rotary encoder based on a rotary transformer has the advantages of high tracking speed, high conversion accuracy, high reliability, simple structure, sensitive movement, low environmental condition, strong anti-interference capability, high measuring accuracy and speed voltage output.

To provide an instrument for fabricating a prepared slide of a tissue section and a sectioning method capable of easily changing a direction of a cut face relative to a cut blade while observing the cut face of an embedding block and capable of increasing an efficiency of a rough cutting operation by specifying a section face by an inconsiderable burden regardless of skill of an operator, an instrument for fabricating a prepared slide of a tissue section includes a cut blade moving along one imaginary plane, a collimated on axis illuminating system having an optical axis in parallel with Z axis orthogonal to the one imaginary plane, an observing system having an image taking portion arranged with an image taking element, not illustrated, having an image taking axis the same as the optical axis and a display portion for displaying an image based on an image taking data acquired by the image taking portion, a base portion including a support base (support portion) for mounting an embedding block, a pivoting mechanism for pivoting the support base around respective axes of X, Y axes, and a straight advancing mechanism for moving the support base in a direction of Z axis, and a joy stick (pivoting operating portion) for operating the pivoting mechanism.

A dual action weightlifting machine has a stationary main frame assembly comprising a right side frame and a left side frame on opposite sides of an exercise area, and a traveling frame movably supported on the stationary frame assembly and having right and left sides and a cross bar connecting the right and left sides above the exercise area, each side of the traveling frame having a vertical guide. A weight bearing exercise bar is movably supported on the traveling frame and has spaced first and second vertical slides slidably mounted on the right and left vertical guides. A horizontal slide assembly has dual horizontal guides on each side frame which engage dual slides on each side of the traveling frame. The horizontal slide assembly is located in a lower portion of the stationary frame assembly completely below the vertical travel path of a user engaging portion of the weight bearing exercise bar.

The invention relates to an intelligent robot capable of high-speed feeding and discharging. An existing feeding and discharging device is complicated to operate. Accordingly, the intelligent robot capable of high-speed feeding and discharging comprises a stand column and a cross arm, wherein the stand column s provided with a vertical linear guide rail, a lifting block is arranged on the vertical linear guide rail, the cross arm is fixed to the lifting block, the lifting block is driven by a ball screw pair, lead screws of the ball screw pair are driven by a lifting servo motor and sleeved with nuts of the ball screw pair, and the nuts and the lifting block are fixed together. The cross arm is provided with a horizontal linear guide rail provided with a slide block, a telescopic arm is fixed to the slide block, a sucker rack or a manipulator grabbing device is fixed to the front end of the telescopic arm, the slide block is driven by a ball screw pair, lead screws of the ball screw pair are driven by a telescopic serve motor and sleeved with nuts of the ball screw pair, and the nuts and the slide block are fixed together. The intelligent robot has the advantages of being convenient to use, safe and efficient, thereby being suitable for various production enterprises needing workpiece carrying.

The invention discloses a method for multi-section equal-fluidity energy-assembled parallel synchronous oil driving in non-uniform oil layer. First, according to the water adsorption ability, dividing the non-uniform oil layer into several sections; then selecting the fluidity of oil driving agent and keep the fluidity of each section same; uses the formula that the fluidity=oil layer filter rate/fluid viscidity to calculate the fluid viscidity of needed oil driving agent; and selecting polymers to attain the fluid in said viscidity; the sub sections in different viscidities are connected to the integrated one; at last, from high to low viscidity, filling sub sections into oil layer. The invention changes the integrated oil driving into separated oil driving, with less driving resistance; the energy-assembled section has high part pressure, and high driving pressure difference. And it can reduce ineffective water cycle, improve efficiency and reduce the consumption of driving agent.

The invention provides a door lock handle reversing device. The device is characterized in that a limiting structure and a torsional spring positioning block are rotated, a torsional spring, a connecting block, a reversing strip, a door handle and other parts are innovatively arranged and interconnected, and the door lock handle can be reversed and positioned through the reversing strip, namely, the door handle can be freely rotated in 360 degrees when the reversing strip is not inserted, and thus the function of reversing the door handle is easily achieved; when the reversing strip is inserted, the door handle is positioned under the effect of an angle limiting block and a bulge b, and meanwhile, the handle is downwards pressed and upwards lifted. With the adoption of the integral structure design, the device has the advantages of being convenient to mount and reverse, small in space used, and easy and safe to be operated.

Provided is a shaft hoist load simulation hydraulic loading test device. The device is formed by the fact that a tested hoist rolling barrel of a hoist main lifting mechanism is integrally connected with a steel wire rope wound on an accompany-test rolling barrel of a hoist load simulation hydraulic loading test mechanism through the steel wire rope wound on the tested hoist rolling barrel. The hoist load simulation hydraulic loading test mechanism comprises a hydraulic pump/a motor, a pressure sensor, a single-way valve, an overflow valve, a torque sensor, a clutch and a speed increaser. According to the shaft hoist load simulation hydraulic loading test device, the hydraulic pump/the motor are used as a loading device and a pump device, a proportional overflow valve controls the pressure of the hydraulic pump/the motor, and continuous load and driving torque which meet actual working conditions are provided for a tested hoist.

An energy-storage lifting intelligent hydraulic pumping unit is formed by a hydraulic power device and a transmitter, which uses a step motor to control a three-way ball valve as unique hydraulic element used in steering control of the pumping unit, while one opening is connected with the outlet of the hydraulic pump, one opening is connected with a bottom inlet of a piston cylinder, and another opening is connected with a hydraulic oil pot, the inlet of the hydraulic pump is connected with an outlet of the hydraulic oil pot, the air pot contains a sliding sealing plug or the air pot contains an air bubble insulated from the hydraulic oil, the upper end of the piston rod is disposed with a block base arranged with one or three blocks fixed on the block base via a support, the hydraulic room is fixed with a block to form a strike-variable block group, one end of hair line is connected with a well smooth rod via a suspender and a square clamper while another end via the strike-variable block group is fixed on the hydraulic room. The invention has reliable operation and energy saving.

An armature for a brush commutated electric motor having a distributed coil winding arrangement for reducing brush arcing and electromagnetic interference (EMI). The winding pattern involves winding a first coil into a first pair of slots of the armature. A second coil having a first subcoil portion is then wound into the same slots as the first coil, while a second subcoil portion of the second coil is wound into a pair of slots that is offset by one slot position from the first pair of slots. The two subcoil portions have the same number of turns, and the total turns of the two subcoil portions equals the number of turns of the first coil. A third coil is then wound in the same slots as the second subcoil portion of the second coil. The third coil has the same number of turns as the first coil. This pattern is repeated around the armature. In a two coil per slot armature, this pattern enables the magnetic axis of each coil to be maintained at a constant angular position relative to the commutator bars to which it is coupled without the need for using uneven numbers of turns for the two subcoil portions of each segmented coil.

The invention discloses a wall climbing robot. The wall climbing robot comprises a vehicle body, four driving units and four crawler belts, wherein two of the driving units are respectively mounted on the left side and the right side of the vehicle body, and the four driving units are connected with the crawler belts separately; each of the crawler belts comprises a plurality of crawler belt plates in annular connection, each of the crawler belt plates comprises a magnetism conductive mounting plate, a magnetism isolating plate and permanent magnets, the magnetism isolating plate is arranged on the magnetism conductive mounting plate, and the two permanent magnets in contrary magnetism are embedded at lateral symmetrical positions of the magnetism isolating plate; the magnetism of one of the two adjacent permanent magnets on the two adjacent crawler belt plates is contrary to the other; the vehicle body comprises a frame, a turning and mounting device and a cleaner main body, wherein one end of the turning and mounting device is connected with the front end of the frame through hinges; the cleaner main body is arranged at the central position of the turning and mounting device; an pneumatic motor is arranged in the vehicle body. The wall climbing robot disclosed by the invention has the advantages of being flexible and smooth, being good in loading property, being wide in cleaning range, and being high in magnetic adsorption efficiency, and is suitable for hulls and large-scale tank bodies.

The invention belongs to the technical field of robots, and particularly relates to a nucleus-related-complex-environment-oriented high-adaptability robotic versatile movement platform. The movement platform aims at improving the capacity of a robot to pass through the environments such as narrow space, flat channels, steps, obstacles and gullies. The platform is composed of four three-degree-of-freedom robotic leg systems based on synchronous belt driving; each three-degree-of-freedom robotic leg system comprises a foot-type robotic body, a hip-joint-'outward-stretching/inward-retracting' driving motor, an integral reduction gearbox of the driving motor, a gear A, a knee-joint-'stretching/bending' driving motor, a gear B, a hip-joint-'outward-stretching/inward-retracting' movement base, athigh connecting rod, a foot-end hexagonal rubber block, a hip-joint-'stretching/bending' driving motor, a bearing, a ball-screw installation rod base, a ball-screw nut connecting shaft, hip-joint pushing rods, a shank connecting rod and a ball screw.

The present disclosure relates to a flying vehicle comprising an annular hollow outer body having an outer circumferential open portion and an inner circumferential open portion; a blade system disposed in the outer body and configured to allow air flow from the outer circumferential open portion to the inner circumferential open portion; a first magnetic system configured to enable the blade system to be kept to have a clearance with the annular hollow outer body and to be kept in a floated state using a first magnetic force; a second magnetic system configured to allow the blade system to rotate using a second magnetic force; and a steering system configured to allow air discharged from the inner circumferential open portion via the blade system to flow upwardly or downwardly.

The invention belongs to the field of manufacturing and conveying equipment of household appliances, and particularly relates to a workpiece conveying and detecting system. The workpiece conveying and detecting system comprises a moving trolley, a control mechanism and a rail of a linear structure. Power mechanisms are arranged at the two ends of the rail. The two power mechanisms are connected through a synchronous belt. The moving trolley is driven by the synchronous belt to move along the rail and be reversed. The control mechanism is electrically connected with the power mechanisms and controls the power mechanisms to operate. At least one side of the rail is provided with a plurality of detection tables for goods storage and detection. The synchronous belt is provided with a steel wire. A frame of the moving trolley is formed by welding rectangular pipes. The workpiece conveying and detecting system has the beneficial effects that the structure is simple, and mounting is convenient; the power mechanisms are arranged at the two ends of the rail and connected through the synchronous belt, so that bidirectional movement of the moving trolley is achieved, and reversing is convenient; the detection tables are arranged, so that storage and buffering storage detection of products are achieved, and product accumulation is avoided; cost is reduced, and the production efficiency is improved; the moving trolley is used for conveying, so that operation and conveying are stable, and the products are not liable to be damaged.

An upright vacuum cleaner includes a nozzle assembly, a lower body pivotally connected to the nozzle assembly and provided with an inclination unit on the outer circumferential surface of the lower body, an upper body rotatably connected to the lower body, a bearing member installed between the lower body and the upper body, a steering unit contacting the inclination unit and elastically installed on the upper body, wherein, when the upper body is swiveled with respect to the lower body, the steering unit is moved upwards and downwards by the inclination unit and then applies pressure to the upper body so as to return the upper body to its original position.