38results about How to "Improve motor coordination" patented technology

The invention relates to a power assisting device for human body lower limb movement. The power assisting device comprises a power assisting bracket and a swing device, wherein the swing device is hinged to the power assisting bracket; the swing device is provided with a swing device angular velocity sensor and/or a swing device acceleration sensor; the swing device angular velocity sensor and/or the swing device acceleration sensor are/is connected with a control system, and the control system can control a power system to drive the power assisting bracket to stretch or bend; the control system judges the movement intention and movement tendency of the human body, and then drives the power assisting bracket to stretch or bend; the sensor is sensitive and can accelerate the response speed of the power system, so that the problem that the movement intention of the human body is hindered by the rigid power assisting bracket is avoided, the coordination between the rigid power assisting bracket and the human body movement is improved, and the interferences of various forces to the transmission of the movement intention of the human body during movement are effectively solved.

The invention relates to a press-robot synchronous movement coordination method. The method comprises the following steps of automatically adjusting a non-load section locus ROM (Read Only Memory) between a point at which a robot Ri lays down parts and then departs from a press Pi and a holding point at which the robot Ri is ready to enter a press Pi-1 to grab the parts; automatically adjusting a load section locus ROM between a point at which the robot Ri grabs the parts and then departs from the press Pi-1 and a holding point at which the Ri is ready to enter the press Pi and lays down the parts; and enabling a blanking robot Ri+1 to enter a mold in advance before a sliding block arrives at 360 degrees, i.e., when the crank angle of the press Pi enters the beta moment, the robot Ri+1 waits beside the mold. According to the method, the non-load stoke section speed of the robot is automatically adjusted according to a synchronous movement control algorithm, so that the press-robot coordination is increased, a press and robot synchronizing function is realized, the overlap ratio between the feeding and blanking movements of the robot and the movement of the press is maximized, and the purpose of improving the production metre and the production efficiency of a positive line through smoothly switching the speed of the robot is achieved.

The invention relates to a hydraulic system of an excavator. In order to solve the problem that an existing excavator has a nodding phenomenon during working on a flat ground, the invention provides ahydraulic control method for the excavator. A bucket rod regeneration control valve is arranged on an oil return oil path of a bucket rod control valve of the excavator; and when the excavator is ina state of working on the flat ground, the opening degree of a valve port of the bucket rod regeneration control valve is controlled to meet the requirement that the opening degree of the valve port of the bucket rod regeneration control valve at the initial stage of bucket rod recycling is greater than that of the valve port of the bucket rod regeneration control valve at the later stage of bucket rod recycling. According to the hydraulic control method for the excavator, when the excavator is in the state of working on the flat ground, the opening degree of the valve port of the bucket rod regeneration control valve is controlled to meet the requirement that the opening degree of the valve port of the bucket rod regeneration control valve at the initial stage of bucket rod recycling is greater than that of the valve port of the bucket rod regeneration control valve at the later stage of bucket rod recycling, so that the bucket rod regeneration amount can be adjusted to achieve effects of slowing down the bucket rod recycling, improving the harmoniousness of operation and eliminating the nodding phenomenon on the flat ground.

The invention discloses a coiling block paper die-cutting machine with a waste removing function. The coiling block paper die-cutting machine is characterized by being composed of a coiling block paper discharging unit, a die cutting unit, a waste removing unit, a finished product cleaning unit and a waste edge collecting unit, coiling block paper is discharged from the coiling block paper discharging unit, the die cutting unit is used for die cutting of the coiling block paper, small waste in the middle of a die cutting finished product is poked out through the waste removing unit, the die cutting finished product is poked out of the coiling block paper through the finished product cleaning unit, and remaining waste edges are collected through the waste edge collecting unit. According tothe coiling block paper die-cutting machine, the coiling block paper can be used for die cutting production, the functions of automatic waste removing, finished product collecting and waste edge collecting are achieved, the coiling block paper conveying quality and the all-unit linkage performance are good, the overall equipment movement harmony is improved, the production speed is further increased, traction and transmission can adapt to different-version die cutting products, and the structure is simple.

The automobile steering system includes the first vertical arm with middle part connected to the output shaft of the steering gear, the second vertical arm with the middle part connected to the output shaft of the assisting servo device, the first straight axle pull rod hinged to lower end of the first vertical arm, a linking pull rod with end hinged separately to the upper end of the first vertical arm and the upper end of the second vertical arm, and the second straight axle pull rod hinged to lower end of the second vertical arm, and has no transition arm similar to that in available steering system. The automobile steering system has relatively great regulating space and range, and can cooperate the first front axle and the second front axle in the turning angles and avoid the abnormal and early wear of the tyre in the second front axle.

The invention relates to the field of engineering vehicles, and discloses an excavator control method and an excavator. The control method comprises the steps that the load power of an excavator hydraulic system is calculated, and engine demand power is calculated according to the load power; according to the mapping relation between the engine rotating speed and the engine power, the engine rotating speed corresponding to the engine demand power is inquired, and the engine rotating speed is adjusted to the inquired engine rotating speed; according to the mapping relation between the operation mode of the excavator and the set flow of the hydraulic system, the set flow corresponding to the current operation mode is inquired; and the displacement of the hydraulic pump is calculated according to the inquired rotating speed of the engine and the set flow, and the displacement of the hydraulic pump is adjusted to the calculated displacement of the hydraulic pump. The displacement of the hydraulic pump and the power of the engine are dynamically matched, the rotating speed of the engine is self-adaptively adjusted according to the load, the displacement of the hydraulic pump is self-adaptively adjusted according to the adjusted rotating speed of the engine, and the action coordination and smoothness in the operation process of the excavator are improved.

The invention discloses application of apolipoprotein D (ApoD) in the preparation of a Parkinson's disease medicament, an ApoD oral preparation and a preparation method thereof. The preparation methodof the ApoD oral preparation comprises the following steps: S1, preparation of an inner-layer liposome: mixing liposome raw materials, carrying out rotary decompression evaporation and blow-drying, adding ApoD, auxiliary materials and ether solution, and carrying out ultrasonic stirring to obtain the liposome I; S2, modification of the liposome: adding transferrin receptor antibody OX26 subjectedto sulfhydrylation treatment into the liposome I, carrying out coupling reaction, connecting the OX26 antibody to the liposome I so as to obtain liposome II, and carrying out chromatography treatment; and S3, combining the outer layer of the liposome II with a chitosan layer to obtain composite liposome III. The invention discloses the application of the ApoD in the preparation of the Parkinson'sdisease medicament for the first time, develops the application value of the ApoD in the Parkinson's disease medicament field, and provides a brand-new Parkinson's disease medicament type-ApoD oral preparation. The preparation has good targeting effect, is not easy to degrade, and has long drug effect duration.

The invention relates to the technical field of flame-retardant slice production, in particular to a condensation polymerization vacuum reaction system for flame-retardant slice production and a production process. The hollow coil spring is arranged in the kettle body; the feeding pipe extends into the kettle body and is used for conveying materials to the upper end of the hollow coil spring so as to enable the materials to flow downwards along the side wall of the hollow coil spring; the first pipe and the second pipe are respectively communicated with two ends of the hollow coil spring and are matched to drive the hollow coil spring to contract and contract so as to promote heat exchange between fluid in the hollow coil spring and materials; the device has the advantages of high heat exchange efficiency, high polymerization reaction rate, high byproduct discharge rate and high product yield.

The invention discloses an improved ground user terminal device for a communication satellite. The device comprises a cabinet in which a transferring cavity is fixedly arranged, wherein a revolution cavity positioned in the cabinet is arranged under the transferring cavity, annularly arranged sensing blocks are fixedly arranged in left and right end walls of the revolution cavity, a motor A is fixedly arranged in the rear end wall of the transferring cavity, a spiral rod is fixedly arranged on the outer surface of the output shaft of the motor A, a spiral wheel positioned in the transferring cavity is arranged on the right side of the spiral rod in an engaging manner, a rotation shaft is fixedly arranged at the lower end face of the spiral wheel, the rotation shaft rotationally penetratesthrough the lower end wall of the transferring cavity and stretches into the revolution cavity, a rotation disc positioned in the revolution cavity and opposite to the sensing blocks is fixedly arranged on the lower end face of the rotation shaft, and a placement cavity is fixedly arranged in the left end face of the rotation disc. The device provided by the invention is simple in structure and convenient to use; according to the device, communication equipment is combined with a series of mechanical devices, and thus the reliability of the device is improved.

The invention belongs to the fields of cytobiology and pharmacology, and relates to an application of a natural medicine herba epimedii extract epimedin B, in particular to an application of epimedinB in preparation of a medicine for treating dopaminergic neuron damage. Expression of apoptotic protein is promoted by increase of dopaminergic neurons in brain substantia nigra due to dopaminergic neuron damage, and meanwhile, expression of tyrosine hydroxylase and anti-apoptotic protein is reduced. Epimedin B has remarkable anti-apoptotic activity, can be used for preparing medicines for preventing and/or treating neuronal apoptosis and related diseases thereof. The application has higher clinical application value and development prospects.