32results about How to "Stable equilibrium" patented technology

The present invention discloses a tail device and a tail dragging method. The tail device comprises: a tail end row which at least comprises a boom system, a travelling mechanism and a lifting mechanism, wherein the boom system is provided with a lifting mechanism and is supported on the travelling mechanism; and a tailstock which is used for being removably fixed to the lower part of a lifted device, and is provided with lifting holes. In the process of lifting the lifted device from the ground, the lifting mechanism is in hanging connection with the lifting holes, and the lifting holes are located at the end deviating from the ground. When the tail device is use for lifting a device, the center of gravity of the lifted device can be guaranteed to be always located below a connection line between the lifting point of main lifting equipment and the lifting point or the support point of the tail end row. The tail device has the advantages of good security, small weight borne by the tail end row, low lifting cost, etc.

The invention provides a magnetic resonance diffuse imaging method. At least two reunion phase radio frequency pulses are added at the back of an excitation radio frequency pulse of a magnetic resonance diffuse imaging pulse sequence, and two sides of each reunion phase radio frequency pulse are symmetrically provided with a diffuse sensitive gradient, wherein two sides of each reunion phase radio frequency pulse are symmetrically provided with a destroying gradient which is placed between the reunion phase radio frequency pulse and the diffuse sensitive gradients at two sides of the reunion phase radio frequency pulse and is used for completely dispelling the phase of the transverse magnetized vector to eliminate the artifact. At least one of a lamella selecting gradient, a phase coding gradient and a numerating gradient direction is provided with the destroying gradient to completely dispelling the phase of the transverse magnetized vector to achieve the steady and balanced state and eliminate the artifact of the diffuse imaging, and at the same time the characteristic of high b value is retained.

The invention relates to an automatic balancing mechanism for a platemaking roller. A corresponding device is arranged for the roller aiming at the unbalance generated on a platemaking roller body and different widths of plates on the platemaking roller body so as to realize the automatic balance under multiple sizes of plates. The automatic balancing mechanism is characterized in that: outer discs 14 at two ends of a roller 1 are provided with arc-shaped balancing grooves 17; a movable balancing block 18 is arranged in each balancing groove 17; and when different widths of printing plates are loaded, tail plate clamp bars 13 move to drive the balancing grooves 17 on the outer discs 14 to rotate so that the balancing blocks 18 move to corresponding balancing positions in the balancing grooves 17 along inner grooves of cams 19 and the whole roller is kept to be in a balancing state. The automatic balancing mechanism has the advantages that the same platemaking machine can be used for making multiplex widths of printing plates; a complex balancing drive control system is not required in the roller design, therefore the design cost of the roller and the production cost of the platemaking machine are greatly reduced; and the convenience for use and the easiness of general implementation are realized.

Continuously variable transmission (1) for motor vehicles, provided with a primary pulley (2) and a secondary pulley (3), around which there is arranged a drive belt (10), which is clamped between two conical pulley disks of the primary pulley (2) with a primary claming force and between two conical pulley disks of the secondary pulley (3) with a secondary clamping force, wherein, as a result of a contact angle of at least one of the pulley disks of the respective pulleys (2; 3) with the drive belt (10) being adapted, and at least in the largest transmission ratio of the transmission (1), i.e. Low, a clamping force ratio between the primary clamping force and the secondary clamping force has a value in the range between 1 and the clamping force ratio in the smallest transmission ratio, i.e. Overdrive.

The invention relates to a manufacturing method of a metal-coated ceramic baseplate, which is carried out according to the following steps of: (1) cleanly washing the two surfaces of a ceramic baseplate; (2) directly welding metal layers on the upper surface and the lower surface of the ceramic baseplate, or brazing the metal layers on the upper surface and the lower surface of the ceramic baseplate, wherein the outer peripheral surface of each metal layer and the outer peripheral surface of the ceramic baseplate have a space d; and (3) brushing a photoresist along the outer peripheral surfaces of the two metal layers, forming at least one thinned and annular step surface at the peripheries of the two metal layers through illumination and corrosion, and manufacturing the metal-coated ceramic baseplate after washing. In the invention, by photoetching and thinning the thicknesses of the edges of the metal layers on the metal-coated ceramic baseplate, the heat stress on the two connecting edges of the step surface can be continuously released, so that not only is the metal-coated ceramic baseplate convenient to manufacture, but also the circulating heat stress among the ceramic baseplate and the metal layers is effectively reduced, the deformation quantity on the edges of a ceramic basal layer combined with the metal layers is greatly decreased, and the temperature-cycling reliability and the service of the metal ceramic baseplate can be greatly improved and prolonged.

The invention provides a hinge mechanism. The hinge mechanism comprises an outer shell and a rotary shaft mechanism arranged in the inner cavity of the outer shell main body part, the outer shell mainbody part is placed on the inner cavity wall of the device body, the hinge mechanism is integrally designed to be not protruded from the device body and a door body, the occupation space is small, and the attractive appearance of the device is guaranteed. Meanwhile the rotary shaft mechanism comprises a first rotary shaft, a first sliding block, a spring assembly, a second sliding block and a second rotary shaft which are coaxially arranged, and the outer end of the first rotary shaft and the outer end of the second rotary shaft are connected with the door body. The first rotary shaft and thesecond rotary shaft are driven to rotate after the door is opened, due to the fact that the spiral directions of the outer spiral surfaces of the first rotary shaft and the second rotary shaft are opposite, the first sliding block and the second sliding block move oppositely, the spring assembly is compressed synchronously, an axial support force is provided for the first sliding block and the second sliding block, radial force overcoming the gravity of the door body is generated on the spiral arc surface and changed along with the opening and closing angle of the door, and the radial force is changed correspondingly, and thus the door keeps balance. The invention further provides a device provided with the hinge mechanism.

The invention discloses a multi-level charge state balance unified control method and system for an energy storage system. The energy storage system is developed towards a large-scale, large-capacityand hierarchical direction, and in order to fully utilize the energy storage system, the balance of multi-level SoC of a power station, a battery stack, a battery cluster and the like needs to be considered. According to the method, a continuous nonlinear function is adopted, the state of charge and the discharge depth value of the units needing to be equalized such as the power station, the battery stack and the battery cluster obtained through sampling are converted, and then active power instructions of the units needing to be equalized are given in proportion in sequence according to the converted state of charge or the converted discharge depth. According to the invention, a unified SoC equalization strategy is provided for a hierarchical energy storage system, and by selecting a proper continuous nonlinear function, the equalization process can be ensured to be stable and rapid, the availability of the energy storage system and the grid-connected friend satisfaction can be improved to the maximum extent, and rapid plug and play can be realized.

The invention belongs to a workpiece forming and machining device and particularly relates to an improved non-die copy necking system and application of the same in workpiece necking machining. The improved non-die copy necking system comprises a driving wheel, wherein a driven wheel is coaxially and parallelly arranged on one side of the driving wheel in a spaced mode, the spacing between the driven wheel and the driving wheel is controlled by a driven wheel ejection mechanism, the edge of the driving wheel and the edge of the driven wheel are matched with the appearance of a mouth part of a workpiece undergoing necking machining, a working platform is parallelly arranged on one side of the driving wheel and the driven wheel in a spaced mode, and a crank sliding block rotation mechanism makes the working platform rotate in the same plane in the radial direction of the driving wheel. A height adjusting device is arranged at the bottom of the working platform, two ends of a clamping mechanism are arranged on the upper side and the lower side of the working platform, the action executing end clamps a workpiece cavity, and a positioning mechanism matched with the appearance of the workpiece to be machined is arranged on the upper surface of the working platform. The technical problem that the workpiece necking machining requirement is difficult to meet is effectively solved, and the improved non-die copy necking system has the advantages of better meeting the workpiece machining requirement and being ingenious in design, easy to control automatically and the like.

The invention discloses a constant-tension buffering mechanism based on a hinge zero-stiffness spring, relates to the technical field of constant-tension buffering devices and the field of low-frequency vibration isolation, and solves the problems that a common triangular zero-stiffness spring is very small in range of keeping zero stiffness and the stiffness characteristic cannot be accurately adjusted. The hinge zero-rigidity spring can keep the rigidity close to zero within a large range near a balance position, the maximum displacement can reach 30-40% of the length of a swing rod, and the rigidity of the hinge zero-rigidity spring at the maximum displacement position is about 1/27 of the rigidity of a vertical spring. The rigidity and restoring force of the hinge zero-rigidity spring are both increased along with increase of vertical displacement, the whole system is in a stable and balanced state, the zero-rigidity characteristic can be accurately adjusted by changing the center distance of the hinge, and the hinge zero-rigidity spring has the advantages of being high in bearing capacity, excellent in zero-rigidity characteristic, convenient to adjust and the like.

The invention relates to a balanced type suspension frame and a motor vehicle. The balanced type suspension frame is installed on a front wheel of a vehicle body and comprises a direction yoke plate, a first suspension frame and a second suspension frame, and the first suspension frame and the second suspension frame are perpendicularly fixed to the two ends of the direction yoke plate in a mirror image mode correspondingly. One end of a direction shaft of the vehicle body is perpendicularly fixed to the middle of the direction yoke plate. The first suspension frame and the second suspension frame each comprise a supporting arm, a swing arm and a shock absorber which are connected in sequence; one end of the supporting arm is perpendicularly connected with one end of the direction yoke plate through a first bearing; the other end of the supporting arm is connected with one end of the swing arm through a second bearing; the other end of the swing arm is connected with one end of the shock absorber through a third bearing; and the other end of the shock absorber is hinged to one end of the supporting arm. The two ends of a front axle of the vehicle body are fixed to the third bearing in the first suspension frame and the third bearing in the second suspension frame correspondingly. According to the balanced type suspension frame and the motor vehicle, the direction shaft is small in bending moment and not prone to being damaged; a direction handle is not shaking; the vehicle body is smooth and steady; and when the front wheel moves upwards, the shock absorbers move more flexibly, and the produced friction force is small.

The invention relates to the field of wood processing, in particular to plywood of a full-symmetrical structure. The plywood is composed of even layers of rotary cut veneers, specifically, the middle two layers of rotary cut veneers are the same in wood fiber direction and opposite in loose face and tight face, and veneers which are perpendicular to the corresponding inner veneers in fiber direction, opposite to the corresponding inner veneers in loose face or tight face, and same as the corresponding inner veneers in thickness and texture are sequentially arranged from middle to outside. Owing to the fact that the full-symmetrical even-layer structure is adopted, the stress of all layers of the plywood is mutually counteracted from middle to outside, and a more stable balancing state is achieved; and meanwhile a formaldehyde-free adhesive is adopted, and therefore formaldehyde pollution is effectively avoided.

The invention discloses a wet garbage and domestic sewage treatment system and method.The system comprises a wet garbage cleaning pool, a wet garbage crusher, a sewage receiving pool, a sewage collecting pipe and a sectional type treatment device.The wet garbage cleaning pool is connected with the wet garbage crusher through a pool bottom connecting pipe; the wet garbage crusher is connected with the sewage collecting pipe; the sewage receiving pool is connected with the sewage collecting pipe through a sewage discharge pipe at the bottom of the pool; the sewage collecting pipe is connected with the sectional type treatment device; the sectional treatment device is of a barrel-shaped structure, a top cover is arranged at the top of the sectional treatment device, a sectional partition plate is arranged at the bottom of the sectional treatment device, and a first-section device, a second-section device, a third-section device, a fourth-section device and a fifth-section device are sequentially arranged in the sectional treatment device from inside to outside. The treatment method comprises the steps of wet garbage collection and crushing, sewage collection and one to five stages of degradation treatment processes, ultimately reaches the standard for reuse, and has the advantages of high efficiency, simplicity, convenience, low energy consumption, low investment, low cost and the like.

The invention provides a pipe fitting support and a thermal deformation compensation device for the pipe fitting support. The thermal deformation compensation device comprises a sleeve, wherein the sleeve is provided with a first end and a second end, and the second end is provided with a micro air gap communicating with the outside of the sleeve and a third connecting part; and a piston rod which comprises an inner end and an outer end, wherein the inner end is located in the sleeve and is in sealing and sliding fit with the inner wall of the sleeve, and the outer end extends out of the first end and is located on the outer side of the sleeve. An air chamber is formed between the inner end of the piston rod and the second end of the sleeve, the micro air gap allows air in the air chamber to expand when heated or contract when cooled to form pressure difference with air pressure outside the sleeve, the piston rod is pushed outwards or inwards through the pressure difference, and the outer end of the piston rod and the third connecting part are used for being connected with two parts capable of moving relatively. Through stretching of the piston rod in the sleeve, pipeline thermal deformation can be effectively offset, and pipeline stress is reduced.

The invention discloses a balanced self-stabilization type spatial motion positioning system which comprises a spherical shell, a balance state self-stabilization mechanism, a balance table, an integrated circuit board and a power supply; the balance state self-stabilizing mechanism is arranged in the spherical shell and fixedly connected with the balance table, the balance table is fixedly connected with the integrated circuit board, and the power source is connected with the integrated circuit board; the balance state self-stabilization mechanism is provided with three sets of driving and detecting units, and the three sets of driving and detecting units are distributed around the circumference of the power source at equal intervals with the center of the balance state self-stabilization mechanism as a reference point. The spatial motion positioning system controls the attitude angle, the angular velocity, the angular acceleration, the rotating speed and the like, can calculate the motion condition and the motion track of the system according to the acquired data, can be used in the fields of map construction, exploration, robot positioning and the like, and has the advantages of stability, convenience, high efficiency and the like.

A konjac formulation in the form of a capsule, including between 85 and 95 parts by weight of konjac gum, between 5 and 10 parts by weight of black rice, between 0.5 and 2 parts by weight of biological Fe, and between 0.5 and 2 parts by weight of vitamin.