36results about How to "Eliminate tremors" patented technology

The invention relates to a fixed platform which enables to locate on the water any fixed structure such as the house, garden, road, airport, car park, children's park and holiday village in the seas, lakes and rivers. Our invention comprises the platform (7) where the floats (22) thereof capable of floating are submerged up to a safe zone 3-5 m from the water (10) surface, the floats (22) spending energy to come out on the water surface (5) produce forces to try to maintain the platform (7) always at the same point owing to the tightness of the ropes (3) of the floats (22) and where said platform (7) is prevented from being drifted by the violent storms and huge waves and the currents in the sea, wherein the platform (7) which is manufactured in a manner suitable for its purpose comprises the weight (4) to the end of which the ropes (3) are connected, the connecting ropes (3) serving to maintain the floats (22) at a constant distance from the floor and in submerged state, the floats (22) producing the buoyancy carried over by the platform (7), the carrier columns (21) connecting the floats (22) with the platform (7) and the connecting pieces (20) that connect the columns (21) with the platform (7).

The invention discloses a PSD feedback-based two dimensional rapid control reflector and a control system thereof. The reflector comprises a pedestal, a PSD feedback optical path structure fixed on the pedestal, a movable support structure with piezoelectric ceramics, a fixed support structure without piezoelectric ceramics, a support connected with the movable support structure and the fixed support structure, and a reflector body fixed on the support. According to the invention, the feedback optical path structure based on a position sensing detector PSD is integrated, so deflection precision of angles of the reflector is improved; via the triangular support structure, it is ensured that while reflector can deflect in two dimensions, space utilization rate of the structure is greatly increased; and the structure of the reflector is quite compact and proper.

The invention discloses a differential fuzzy combination control method for electric automobile driving skid resistance, and the driving skid resistance is realized by combination control of a fuzzy controller based on an optimal tracking differentiator (TD-Fuzzy)and a PID controller. A vehicle-mounted electronic control unit (ECU) based on the control algorithm receives information from various vehicle-mounted sensors; current expected vehicle wheel rotation speed can be calculated through expected slip ratio according to a slip ratio definition formula; after comparing the current expected vehicle wheel rotation speed with actual vehicle wheel rotation speed, and output torque adjustment value of a drive motor of an electric automobile is obtained through the TD-Fuzzy and the PID combination control method, thereby realizing adjustment of motor output torque and rotation speed, reducing slip ratio of the electric automobile in the driving process, realizing driving skid resistance and improving driving stability of the electric automobile. According to the differential fuzzy combination control method, the intelligent controller adjusts the output torque of the motor according to the control algorithm so as to realize electric automobile driving skid resistance.

The embodiment of the invention relates to a motor and air blower. The motor includes a housing, a pressure expander, a rotor assembly and a stator assembly. The housing includes a shell part, an inner ring part, a plurality of clamping arms and a plurality of vertical blades. A circular passage is formed between the inner ring part and the shell part, and the plurality of vertical blades are connected with the shell part and the inner ring part. The plurality of clamping arms are arranged on an inner wall of the shell part in a surrounding manner, and are connected and fixed to the shell part. The pressure expander includes a main body part and a plurality of bent blades. The bent blades are annularly arranged on the main body part, are in one-to-one correspondence with the vertical blades on the housing, and are connected with the vertical blades. The rotor assembly includes a bearing assembly, a rotating shaft and a magnetic force piece. The bearing assembly is fixedly arranged on the inner ring part, the rotating shaft is connected with the bearing assembly in a matched manner, and the magnetic force piece is annularly arranged on the rotating shaft. The stator assembly is connected and fixed to the clamping arms. The motor provided by the invention can stably run at high rotating speed, air speed that is formed is high, air volume is large, and manufacturing cost is controllable.

The invention relates to a composition for improving symptoms of a cerebrovascular disease. The composition is composed of Ligusticum wallichii, rhizoma Gastrodiae and nervonic acid, and has advantages of synergistic and complementary pharmacological effects, high content of active ingredients, quick taking-effect, controllable quality, small taking dose and definite therapeutic effect. The composition can be prepared into various healthcare product dosage forms suitable for clinical application.

The invention discloses a knee joint rehabilitation robot system and a human-machine compliance control method thereof. The system comprises a thigh rod, a calf rod, a motor and a transmission system;the transmission system comprises a load slider, a guide nut and a lead screw; the motor and the lead screw are fixed to the thigh rod; the load slider is fixed to the calf rod; the motor drives theguide nut to move horizontally through the screw; and the guide nut drives the calf rod to move through the load slider. The control method includes: position control for follow-up control in a swingperiod and a pre-tightening phase; direct force control for a later pre-tensioning phase and a buckling assist phase; and admittance control for an extended assist phase. The system and method has theadvantages of simple structure, convenient use and good control effect.

The invention provides a gearbox control unit and a shifting fork advance gear engagement method of the gearbox control unit. The shifting fork advance gear engagement method comprises the steps that when the situation that a vehicle is located in a manual driving mode is determined, information of the rotating speed of an engine is acquired; and when the situation that the rotating speed of the engine is located between a first rotating speed and a second rotating speed is determined, operation of advance gear engagement of a shifting fork is forbidden, wherein the first rotating speed is the minimum rotating speed formed when gear rattles can be caused by gear engagement of the shifting fork, and the second rotating speed is the maximum rotating speed formed when gear rattles can be caused by gear engagement of the shifting fork. By the adoption of the scheme, chattering and noise caused by rattles between gears of a non-bearing gear shaft system can be eliminated, and the driving comfort is improved.

A loading rack with an oblong table body having a lateral extent and posterior and anterior ends and a pair of legs attached closably/foldably to posterior and anterior side parts of the body. The loading rack further has a plurality of leg holders which are attached at laterally spaced locations to the posterior and anterior side of the table body and a supporting hole which opens downwardly on each leg holder. Multiple insertion parts on an upper part of each of the legs can be inserted one each into the supporting holes. Each leg is held and fixed in a vertically standing position by peripheral walls surrounding the supporting holes as insertion parts are inserted into the supporting holes and the table body is loaded on the leg.

The invention discloses a flapping-wing micro-aircraft based on motor antisymmetric arrangement driving, and belongs to the field of micro-aircrafts. When a driving structure is used for driving, motors which are arranged in an anti-symmetric mode symmetrically rotate reversely to eliminate the influence of motor torque, so that large-amplitude vibration of a fuselage in the horizontal direction is eliminated, and the stability during flight is improved; the motor drive arranged in an anti-symmetric mode is equivalent to motor parallel drive, the problems of insufficient drive force and drive power of a single existing micro motor are solved, and the requirement for high flapping frequency of the flapping-wing micro aircraft in a special flight environment can be met. A mechanism for passive torsion during flapping of a wing is arranged at the root of the wing, so that the wing flaps downwards in a small-attack-angle attitude to obtain larger beneficial aerodynamic lift force and flaps upwards in a large-attack-angle attitude to obtain smaller aerodynamic resistance, and the average beneficial aerodynamic lift force of the flapping-wing micro aircraft is increased by means of a torsion mechanism. The device also has the advantages of simple structure, high integration level, firmness, reliability and convenience in manufacturing and assembling.

The invention relates to an energy-saving transmission mechanism of a ball press machine. The energy-saving transmission mechanism comprises a motor, a speed reducer, a transmission spindle with one end connected with the speed reducer and a transmission main gear fixedly mounted at the other end of the transmission spindle. The transmission spindle is mounted on a conjoined double-shaft bearing seat through transmission bearings, and a driving roller shaft is mounted on the conjoined double-shaft bearing seat through transmission bearings. A ball press machine driving roller is mounted on the driving roller shaft, and a driving roller gear engaged with the transmission main gear is mounted at the end of the ball press machine driving roller. A driven roller shaft is mounted through driven roller shaft bearings and driven roller shaft bearing seats. A ball press machine driven roller is mounted on the driven roller shaft, and a driven roller gear engaged with the driving roller gear is mounted at the end of the driven roller shaft. The driving roller and the driven roller of the ball press machine are matched, and energy conservation is obvious; the acting point of force is long, the load of the speed reducer and the load of the motor are greatly lowered, and the load of the driving roller shaft is reduced; deviation, deflection and slight shock are eliminated, rigidity and stability of the machine are improved, and the product quality is improved.

An electronic device is provided and includes a display device and a processor configured to identify a composite image in which one or more first images obtained using a first camera corresponding to a first direction and one or more second images obtained using a second camera corresponding to a second direction are combined, the second direction being different from the first direction, receive a request for playing the composite image, in response to the request for playing the composite image, identify movement information corresponding to a movement which is detected while the one or more first images and the one or more second images are obtained, correct a partial region to be displayed using the display device among regions of the composite image based on at least the movement information, and display a partial image corresponding to the corrected partial region in the composite image on the display device.

An accommodating portion (13) is formed at the center of a body (8) of a first member (1) having a belt attachment (10). The accommodating portion (13) has an opening (14) on the front and back sides thereof, the opening (14) being sufficient for molding a bulging head (42) of the rotary shaft (40) therein, a groove (15) sufficient for molding a neck portion (41) of the rotary shaft (40) is provided at the center of the lower side of the opening, and a concave groove (22) capable of molding a part of the neck portion (41) is formed in lateral direction. The rotary shaft (40) is integrated with the second member (2) at an upper side of a body (9) thereof and has an insert hole of an insert-type male body at a lower side. Since a gap is generated between the first member and the second member during the molding process and movement thereof becomes shaky, a retainer (34) having a bearing (35) at a distal end thereof is fitted between the bulging head (42) of the rotary shaft and the lower side (23) of the accommodating portion (13) to prevent shaky movement.

The invention aims to provide an automatic detection device of a vibrating screen square girder. The device comprises brackets, axial movement systems and circumferential direction rotation systems, wherein each axial movement system of the device consists of a driving travelling mechanism and a driven travelling mechanism; each driving travelling mechanism comprises a motor, a motor base, a speed reducer, a driving wheel, a initiative wheel bracket, a spring I and a nut I; each driven travelling mechanism comprises a driven wheel, a driven wheel bracket, a spring II and a nut II; each circumferential direction rotation system comprises a connecting plate, a track, a sensor base, a tension spring, an adjusting nut and a sensor box. The traditional manual detection is low in efficiency and difficult in detection at various places, while the device provided by the invention can realize the automatic detection and simplify the detection, remarkably improves the detecting efficiency, is high in automation degree and excellent in movement stability, effectively eliminates the influences of shaking and speed on detection signals, and improves the repeatability and accuracy of detection signals to a great extent.

The invention discloses a pressure self-adaptive switching hydraulic logic control device for main and auxiliary hydraulic cylinders. The pressure self-adaptive switching hydraulic logic control device comprises the main cylinder and the auxiliary cylinder, wherein the main cylinder and the auxiliary cylinder are parallelly and rigidly connected on a load, a first electromagnetic directional valve is connected to the main cylinder, a pressure regulating valve, a throttling valve and a second electromagnetic directional valve are sequentially connected to the auxiliary cylinder, a first logic valve and a second logic valve are respectively connected between the pressure regulating valve and the auxiliary cylinder, and the first logic valve is connected between the main cylinder and the first electromagnetic directional valve. The pressure self-adaptive switching hydraulic logic control device can completely achieve functions achieved in an existing control mode, the links easily causing faults are decreased, the problems including slippage and the like occurred in quiver, switching impact and a static state are eliminated by relying on the intrinsic rapidity, sensitivity and reliability of pressure self-adaption, and the main and auxiliary hydraulic cylinders are smoother to switch and greatly meet the working condition requirements of the pressure self-adaptive switching hydraulic logic control device.

The invention discloses a mounting structure of a curtain wall sun visor. The mounting structure comprises the sun visor and a connecting piece; the sun visor is used for large-depth mounting of a sunshade piece, the connecting piece is connected with a curtain wall framework and used for fixing components of the sun visor and a curtain wall glass assembly; a mounting end of a panel of the sun visor is provided with a hanging structure and a leveling structure; the connecting piece is provided with a sun visor clamping hanging structure and an abutment joint structure; the connecting piece isfurther provided with an insertion hanging structure of the curtain wall glass assembly. According to the mounting structure of the curtain wall sun visor, stress among the sun visor, the curtain wallglass assembly and the connecting piece is transmitted through a structure, non-clearance fit is achieved, the shaking phenomenon of the sun visor under the effect of wind load is effectively eliminated, the requirement for mounting the sun visor with large depth can be met, a glass curtain wall unit plate and the sun visor can be fixed through one connecting piece, and the mounting structure issimple, safe and reliable.

The invention aims at providing an automation detection device of a vibration screen I-shaped beam. The device comprises a moving system, a machine body and a rotary system, wherein the I-shaped beam is a component to be detected; the moving system of the device mainly comprises a driving walking mechanism and a driven walking mechanism. By the device, the defects that manual detection is needed and automation cannot be achieved in a beam automation detection process are solved, and the beam detection efficiency and quality are remarkably improved; traditional manual detection is low in efficiency, and multiple places are hard to detect, but with the device, the detection can be automatically and easily performed, and moreover, the detection efficiency is remarkably improved; the device is high in automation degree and good in moving stability, the influence of shaking and speed on detection signals is effectively eliminated, and the repeatability and the accuracy of the detection signals are improved to a large extent.

The invention relates to a preparation method of a milling cutter with open slots, a manufacturing process comprises: the excircle of a metal disc is cut into a plurality of sawtooth grooves in the same direction in a uniformly distributed manner so as to form a cutter body, the method is characterized in that: (1) after a plurality of open slots are made at the bottom of the sawtooth grooves in a uniformly distributed manner along the center line direction of one surface of the cutter body, oil quenching and tempering treatments are carried out on the cutter body; (2) an alloy cutter head is welded on each sawtooth groove of the cutter body along the same direction, so as to form a milling cutter; (3) a vacuum furnace heat treatment is carried out on the milling cutter manufactured in step (2). According to the preparation method, the open slots are made in one surface of the cutter body, the internal stress of the cutter body is released during cutting, the vibration of the cutter body is eliminated, the problem that the milling cutter vibrates during working is solved, the processing resistance is reduced, the abrasion of a cutting edge is lowered, the phenomena of resonance, cutter blocking and cutter hitting generated when the milling cutter works are prevented, not only are the processing precision and the cutting speed enhanced, but also the waste of raw materials caused by the rejection rate of products is reduced by a large margin.

This connector is provided with: a connector housing (3) having a holder housing chamber (31c); and a rear holder (32A), with an electrical wire (21) inserted into an electrical wire insertion hole (39) thereof, housed within the a holder housing chamber (31c). The outside diameter dimension (D1) of the electrical wire (21) is larger than the inside diameter dimension (D2) of the electrical wire insertion hole (39) of the rear holder (32A), and the outside diameter dimension (D3) of the rear holder (32A) with the electrical wire (21) housed within the electrical wire insertion hole (39) is smaller than the inside diameter dimension (D4) of the holder housing chamber (31c) of the connector housing (3).

The invention relates to the technical field of chain transmission, in particular to a chain transmission device of a sound wave vibration exciter. The chain transmission device of the sound wave vibration exciter comprises a chain, and a driving chain wheel, a vibration chain wheel A, a chain distance adjusting device, a vibration chain wheel B, a driven chain wheel, a tensioning device and a mounting bottom plate which are arranged in sequence; through the chain distance adjusting device, a second adjusting chain wheel can be moved and adjusted in the direction perpendicular to the center connecting line of vibration wheels, and then fine adjustment of the phase difference of two vibrating shafts is achieved; and the whole chain is tensioned through the tensioning device, and tremble generated during high-speed transmission can be eliminated.