14results about How to "Low balance" patented technology

The utility model provides a vacuum chuck device suitable for various wafer sizes, which comprises an upper chuck body and a lower chuck body, the bottom surface of the upper chuck body is fixed on the top surface of the lower chuck body, and the upper chuck body comprises an external O-shaped rubber ring, a middle O-shaped rubber ring, an internal O-shaped rubber ring and a metal surface. The outer O-shaped rubber ring, the middle O-shaped rubber ring and the inner O-shaped rubber ring are concentrically fixed to the top face of the metal face, a plurality of air holes are formed in the metal face along the inner O-shaped rubber ring, a plurality of fan-shaped annular grooves are formed in the portion, between the middle O-shaped rubber ring and the outer O-shaped rubber ring, of the metal face, and the air holes are formed in the fan-shaped annular grooves. A connecting hole is formed in the center of the bottom face of the lower sucker body. According to the utility model, a plurality of O-shaped rubber rings are used for adsorption, the wafer is not in direct contact with a metal surface, the wafer breaking probability is reduced, and the wafer clamping device is suitable for wafers of various different sizes.

The utility model provides a wear-resistant rubber covered roller for a printing machine, relates to the technical field of rubber covered rollers for printing machines, and solves the problems that printing parts outside the rubber covered roller can be replaced in order to ensure the printing quality, but the printing parts of a common rubber covered roller are difficult to replace. In the prior art, the rubber roller generally does not have a good stable structure to assist the connection stability between the rubber roller and a printing part, so that the printing quality is influenced due to looseness between the printing part and the rubber roller. A wear-resistant rubber roller for a printing machine comprises a connecting shaft, a rubber roller and a rubber roller body, fixed side seats are symmetrically and fixedly mounted at the two ends of the connecting shaft; after the connecting sleeve is replaced, an operator only needs to rotate the knob to drive the limiting screw rod to rotate and push the limiting sliding block to move until the limiting teeth at the bottom of the limiting screw rod are completely clamped with the limiting teeth on the limiting block of the rubber roller main shaft, so that the fixed side seat is effectively prevented from loosening due to vibration or external force, and the long-term stability of the connecting sleeve is ensured.

The application discloses a clothes treating apparatus, which comprises a cabinet, a drum assembly and a damping assembly. The cabinet comprises a base, the drum assembly is above the base and comprises an inner drum, and the damping assembly is between the base and the drum assembly and comprises arc-shaped beams. The arc-shaped beams are all convex to the drum assembly, and are configured to reduce the convex height under the pressure of the drum assembly when supporting the drum assembly. The convex heights of the arc-shaped beams are all different, and the stiffness of the arc-shaped beams increases in turn according to the order of the convex heights from high to low. The end of each arc-shaped beam is movably arranged on the base. The arc-shaped beams are configured to: when the inner drum is in a static state, the top of at least one arc-shaped beam is in supporting contact with the drum assembly; and when the inner drum rotates relative to the cabinet, the arc-shaped beams are in supporting contact with the drum assembly in turn according to the order of the convex heights from high to low. The damping assembly is beneficial to avoiding that the drum assembly drives the cabinet to vibrate due to excessive vibration, and is beneficial to avoiding noise.

The utility model relates to a kind of dynamic cone balancing device of conical crusher, including ring disc and hydraulic cylinder, the four around integral moulding of ring disc has hinge seat, one end of hydraulic cylinder is hinged with hinge seat, the other end of hydraulic cylinder is hinged with dynamic cone inner wall, the bottom mouth of ring disc is inserted with bottom cover, the top mouth of ring disc is screwed with top cover, the disc body of ring disc is equipped with the inner oil passage of through inner and outer wall, the outer end port of inner oil passage is embedded with external connection pipe, the external connection pipe is communicated with hydraulic cylinder by connecting pipe and outer oil passage;By ring disc, top cover and bottom cover constitute internal cavity, by the communication internal cavity and hydraulic cylinder of inner oil passage and outer oil passage, by the damping flow of hydraulic oil, realize the upper stability of dynamic cone, reduce the vibration influence and unbalanced motion of dynamic cone, to realize the balance control of dynamic cone, and the whole device does not need external device drive, by internal hydraulic oil communication movement, realize passive balance and shock absorption.

The utility model discloses a high rotating speed motor rotor punching sheet, comprising a silicon steel sheet body, a plurality of arc-shaped projections arranged on the outer peripheral surface of the silicon steel sheet body, flat magnetic grooves arranged on the silicon steel sheet body corresponding to the inner sides of the arc-shaped projections, air grooves arranged at two ends of the flat magnetic grooves, and a shaft hole arranged at the central position of the silicon steel sheet body. The hole edge of the shaft hole is provided with a plurality of concave positions, and lightening holes and balancing holes are formed in the peripheral positions corresponding to the shaft hole. A ventilation recess is formed between two adjacent arc-shaped projections, so that the temperature of the rotor punching sheet and the magnetic steel can be effectively reduced. Moreover, the arc-shaped protrusions can reduce the harmonic component of the air gap, reduce the torque pulsation, and enhance the structural strength of the stator punching sheet. The flat magnetic grooves are used for inserting the magnetic steel, and air can flow through the air grooves at the two ends of the flat magnetic grooves to assist in heat dissipation, so that the rotor is subjected to heat dissipation in the operation process, and the operation performance of the motor is ensured. Meanwhile, the concave position is arranged, an air channel is added, the heat dissipation effect is further improved, and the temperature of the motor during operation can be reduced; the balance holes can effectively keep dynamic balance of the rotor, and vibration and noise are reduced. The lightening holes not only reduce the weight of the rotor, but also facilitate the improvement of the efficiency of the motor and the reduction of energy consumption, especially at a high rotating speed, the influence of mass on the balance and high-speed operation of the rotor is reduced, and the high-rotating-speed performance of the rotor is improved.

The utility model relates to the technical field of UV offset printing ink production, disclose a kind of automatic feeding device for UV offset printing ink production, including pipe body, the top of the pipe body is outwardly inclined, the top of the inside of pipe body is provided with the filter assembly of convenient to take, the filter assembly includes filter layer, the top of both sides in pipe body is fixedly connected with support base, the filter layer is located at the top of the inside of pipe body.This UV offset printing ink production automatic feeding device is provided with filter layer, limiting frame, inner socket, positioning rod, support base and push plate, can carry out deep filtration to the ink imported into pipe body, quickly remove the impurity in ink, optimize the connection mode of filter layer, it is convenient to disassemble and use, solve the problem that plant-based environmentally friendly ink special smell is easy to attract insects, unable to filter ink and reduce the purity of ink, subsequent use is prone to dirty spot and affect the appearance.

The utility model relates to the technical field of encoders, in particular to a novel encoder, which comprises an assembly casing. A coding assembly structure is assembled on the inner side; the coding assembly structure comprises an installation shaft rotationally installed on the inner side of the assembly machine shell, a main shaft rod is rotationally installed on the inner side of the installation shaft, and a coding disc is integrally fixed to the end, located in the assembly machine shell, of the main shaft rod; the device has the advantages that mounting and adjusting are convenient, the assembly screw cylinder of the assembly flange rotates through an external tool, position adjustment can be achieved through screw transmission in a screw hole of the assembly flange, then screw locking is conducted through the nut, the assembly position can be accurately adjusted, and mounting precision is ensured; the gravity center is stable when the assembly flange rotates, shaking and unbalance are reduced, stable operation of equipment is facilitated, the equipment failure risk caused by the unstable gravity center is reduced, and the service life of the equipment is prolonged.

This utility model discloses a speaker protection device, comprising a slide plate, a speaker body, a locking assembly, a flipping assembly, a first handrail, and two second handrails. Two traveling wheels and two pulleys are fixedly connected to the underside of the slide plate. The locking assembly is used to limit and lock each of the traveling wheels. The first handrail and the two second handrails are all fixedly connected to the slide plate. The flipping assembly is disposed on the slide plate and is used to adjust the sound output direction of the speaker body. The diameter of the traveling wheel 13 is larger than the diameter of the pulley 14. This utility model aims to facilitate user operation, flexibly adjust the channel direction, and improve the usability of the product.

The utility model provides a frame convenient to fold, which comprises a frame main body and a main beam, a seat is arranged at the upper end of the frame main body, a base is arranged at the lower end of the frame main body, and a battery box positioned below the seat is arranged on the base; a rear wheel is arranged at the intersection of the base and the frame main body; a grip assembly is arranged at the upper end of the main beam, and a front wheel assembly is arranged at the lower end of the main beam. A first folding assembly and a second folding assembly are arranged between the frame body and the main beam. A first folding assembly and a second folding assembly are arranged between the frame body and the main beam and allow the frame to be folded when the frame does not need to be used, and the occupied space is reduced. By operating the first folding assembly and the second folding assembly, the frame body and the main beam can be folded to be close to each other, a compact storage or carrying state is achieved, a compact structure is formed, and space is saved.

The invention discloses an application of white datura in preparation of a medicine for preventing and treating cerebral ischemia-reperfusion injury. The invention proposes and verifies that white datura can effectively prevent and treat ischemia reperfusion injury for the first time, including greatly reducing the volume of cerebral infarction caused by cerebral ischemia reperfusion; meanwhile, the neurological function impairment symptoms such as motor coordination and balance ability reduction, spatial learning and reference memory impairment and depression-like behaviors caused by cerebral ischemia reperfusion are remarkably improved, and a natural medicine with great application potential is provided for mechanism research, prevention and treatment of cerebral ischemia reperfusion injury.

The invention provides a photovoltaic asymmetric low-voltage ride-through control method and device and control equipment, and relates to the technical field of photovoltaic grid connection. The method comprises the steps that the voltage of a photovoltaic grid-connected point is acquired, and whether an asymmetric low-voltage fault occurs or not is determined according to the voltage of the photovoltaic grid-connected point; when the asymmetric low-voltage fault is detected, determining a positive-sequence reactive current reference value, a negative-sequence reactive current reference value and a positive-sequence active current reference value based on the distribution sequence of the positive-sequence reactive current, the negative-sequence reactive current and the positive-sequence active current from large to small according to the priority, and setting the negative-sequence active current reference value to be 0; and controlling the photovoltaic inverter according to the positive sequence reactive current reference value, the negative sequence reactive current reference value, the positive sequence active current reference value and the negative sequence active current reference value. According to the priority distribution strategy, the positive sequence voltage of the grid-connected point is rapidly supported, the asymmetry of the power grid is inhibited, and the compatibility of the photovoltaic grid-connected system and the power grid is improved.

The utility model provides a kind of insulation structure for short-circuit prevention safety type charging pile battery soft connection, including charging pile body, the outside of the charging pile body is provided with charging wire, the end of the charging wire away from charging pile body is fixedly connected with charging head, the outside of the charging pile body is provided with protection assembly, the inside of the charging pile body is equipped with the clamping groove of the insulating component of being provided with.The insulation structure for short-circuit prevention safety type charging pile battery soft connection, by setting insulating component, the double insulation structure of main insulation layer and reinforcing insulation layer, form all-around wrapping protection to battery soft connection body, main insulation layer is directly attached to soft connection surface, provide basic insulation barrier, enhance insulation strength, effectively block current leakage path, significantly improve the redundancy of insulation performance, even in long-term use Local wear or aging, still can maintain reliable insulation effect, guarantee the safe operation of charging pile battery system.

Embodiments of the present application disclose a motion state prompting method and device, electronic equipment and a storage medium. The motion state prompting method can include: acquiring motion state information of a vehicle, the motion state information being used to indicate a motion condition of the vehicle within a preset time length after a current time; generating and outputting a prompt interface according to the motion state information to prompt the motion condition. Through implementation of the method, the riding experience of a user can be effectively improved.

This invention belongs to the field of active distribution network operation control and artificial intelligence application technology, specifically involving a method and system for managing three-phase imbalance in energy storage distribution networks based on the DSAC algorithm. This invention proposes a DSAC algorithm with adaptive risk preference based on operating conditions, applied to Markov decision processes for training the agent. Data is extracted from an experience replay buffer to update the policy network and evaluation network for offline training of the agent. The risk preference coefficient during the policy update process is adaptively adjusted using an operating condition severity index. This invention deeply integrates the phase-decoupling adjustment capability of the energy storage system with the operating condition adaptive risk preference mechanism of the DSAC algorithm, enabling the algorithm to dynamically adjust the trade-off between benefits and risks based on photovoltaic fluctuations, the severity of three-phase imbalance, and the safety margin of energy storage SOC. This achieves rapid and robust management of three-phase imbalance in the distribution network, improving the power quality and operational stability of high-penetration photovoltaic distribution networks.