14results about How to "Reduce line speed" patented technology

The winding film thinning and stretching device comprises a fixing plate, a first conveying roller is movably arranged on one side of the interior of the fixing plate through a rotating shaft, and a second conveying roller is movably arranged on the portion, on one side of the first conveying roller, of the interior of the fixing plate through a rotating shaft; a linkage mechanism used for linkage of the first conveying roller and the second conveying roller to rotate at the same time is arranged at one end of the first conveying roller and one end of the second conveying roller, and the linkage mechanism comprises a belt wheel, a rotating disc, a sliding groove, a friction block and a transmission belt. A rotating disc is fixedly arranged at the end, where the second conveying roller is located, of the rotating shaft, and a plurality of sliding grooves are formed in the outer side surface of the rotating disc. According to the film stretching device, the first conveying roller and the second conveying roller have different conveying speeds, so that the film stretching effect is achieved, the device can carry out high-speed assembly line type stretching work without stopping, and therefore the machining efficiency of the device can be improved.

The utility model discloses a cold stamping film constant-speed rewinding device which comprises an unwinding shaft and a rewinding shaft used for rewinding a cold stamping film, the rewinding shaft is connected with a rewinding motor, and a tensioning shaft used for tensioning the cold stamping film wound between the unwinding shaft and the rewinding shaft is arranged between the unwinding shaft and the rewinding shaft. The rewinding motor is electrically connected with a control system used for controlling on-off and angular velocity of the rewinding motor, the encoder is used for collecting linear velocity of a cold stamping film, is arranged between the unwinding shaft and the rewinding shaft and is close to the cold stamping film, and the encoder is electrically connected with the control system. The control system is used for controlling the rewinding motor to reduce the angular speed of the rewinding motor after the linear speed of the cold stamping film exceeds the preset speed of the system. According to the rewinding device, the cold stamping film can be rewound at the uniform linear speed, and the situation that the cold stamping film is snapped due to the fact that the linear speed is too high when the cold stamping film is rewound is avoided.

The invention discloses a rice pot seedling transplanter, which comprises a control system, a supporting mechanism, a pressure plate mechanism, a transplanting arm mechanism, a lateral box shifting mechanism and a longitudinal conveying mechanism, wherein the transplanting arm mechanism, the lateral box shifting mechanism and the longitudinal conveying mechanism all comprise a driving motor connected to the control system, and the control system realizes a coordinated cooperation scheme of the three driving motors, thereby realizing accurate conveying and transplanting of the pot seedlings.

The invention relates to the technical field of crystal silicon slicing, in particular to a wire welding method for broken tungsten wires, a method for cutting crystal silicon and application of the wire welding method to improvement of chromatic aberration caused by broken wire welding. The wire welding method for the broken tungsten wire comprises the steps that when a welding spot is welded, the welding current is controlled to be 22-26 milliamperes, and the wire welding time is 10-15 seconds. According to the wire welding method for broken tungsten wires, the method for cutting crystalline silicon and the application of the wire welding method for broken tungsten wires and the method for cutting crystalline silicon in the aspect of improving chromatic aberration caused by broken wire welding, the success rate of tungsten wire welding is increased by optimizing the welding parameters of the welding wires, and then the cutting efficiency is improved. And meanwhile, by reducing the line speed of missed welding spots, tungsten filament shaking is reduced, and chromatic aberration lines are reduced.

The present invention provides a scroll compressor. The scroll compressor includes: a housing; the driving motor is arranged in the shell; a rotating shaft rotatably coupled to the driving motor and having a first eccentric portion and a second eccentric portion formed spaced apart from each other; a first compression part including a first orbiting scroll coupled to the first eccentric part so as to be capable of orbiting, and a first fixed scroll engaged with the first orbiting scroll to form a first compression chamber; a second compression part including a second orbiting scroll coupled to the second eccentric part so as to be capable of orbiting, and a second fixed scroll engaged with the second orbiting scroll to form a second compression chamber; and a main frame disposed between the first compression portion and the second compression portion and supporting the first compression portion and the second compression portion. A thrust plate is coupled to the inner periphery of either the first fixed scroll or the second fixed scroll, and the thrust plate supports one end of a rotating shaft to form a thrust surface.

The utility model discloses a matrix type engine fan, including engine assembly, assembly mechanism and matrix mechanism, the assembly mechanism sets up the front end of engine assembly, the matrix mechanism sets up on the assembly mechanism, the assembly mechanism includes fan support, assembly component and support component, the assembly component includes idler mounting seat, idler mounting hole, fan clutch assembly mounting hole, fan pulley mounting seat, fan pulley fixed orifices, fan support installation foot, fan support mounting hole, surrounding weight reduction groove, side weight reduction groove and top weight reduction groove. This scheme has improved fan cooling efficiency, reduced fan power consumption, improved whole car economy, reduced the noise of fan, reduced the maintenance frequency and maintenance cost of fan.

The utility model discloses a novel surface cleaning device which comprises a connector, the bottom of the connector is connected with a rotating valve sleeve, a rotating valve element is arranged in the rotating valve sleeve, the two ends of the rotating valve element extend out of the rotating valve sleeve and are connected with a valve body, the bottom of the valve body is connected with the rotating valve element, and the bottom of the rotating valve element is connected with a water outlet pipe. The two sides of the water outlet pipe are each connected with a nozzle, a steel ball is arranged at the upper end of the rotary valve element, meanwhile, a flat cap rivet is arranged in the valve body, and the flat cap rivet and the steel ball are connected together in an abutting mode. The surface cleaning device integrates the advantages of being compact in structure, stable in performance, low in cost, long in service life, high in safety, wide in application range and the like, can meet the requirement for the long service life of commercial use, and can also meet the requirement for the low price of household use.

The invention belongs to the technical field of cement production, particularly relates to a fluctuating roller type feeding machine, and aims to solve the problem that an existing fluctuating roller type feeding machine cannot simultaneously guarantee the screening requirement of a feeding end and the conveying requirement of a discharging end. The device comprises a conveying mechanism, and the conveying mechanism comprises a plurality of fluctuation rollers arranged in the conveying direction; the maximum excircle diameter of the fluctuation roller is gradually reduced from the feeding end to the discharging end; the rotating speeds of the fluctuation rollers are the same. The fluctuating roller at the feeding end of the fluctuating roller type feeder is large in diameter, high in linear speed and strong in fluctuating effect, materials can be quickly pushed to roll and screen, layering of the materials with different particle sizes is efficiently achieved, and the feeding and screening requirements are met; the fluctuation roller at the discharging end is small in diameter, low in linear speed and weak in fluctuation effect, disordered disturbance caused by too high movement speed and violent fluctuation of materials can be avoided, and then the stable conveying flow direction of the materials is prevented from being damaged, so that smooth discharging can be guaranteed, meanwhile, secondary mixing of fine materials is reduced, and the screening precision is improved.

The application discloses a battery pack disassembling mechanism. The battery pack disassembling mechanism comprises a base, a bearing assembly and a cutting tool. The bearing assembly comprises a bearing platform suitable for bearing the battery pack. The cutting tool is reciprocatingly vibrated on the base and located at one side of the bearing platform. The cutting tool has a blade surface and a back blade surface arranged oppositely. When the cutting tool moves in a first direction, the blade surface is driven to approach the battery pack on the bearing platform and cut the battery pack. When the cutting tool moves in a second direction, the back blade surface is in contact with the battery pack to drive the cutting tool to move away from the battery pack. The first direction and the second direction are arranged oppositely. The vibrating cutting tool provided by the application can set a lower linear velocity of the cutting tool and more easily control the cutting amount. When the cutting tool is in contact with the battery pack, the contact friction temperature is lower, so it is relatively safer. Moreover, the back blade surface can not directly process the battery pack, and the cutting tool can be better protected.

The present invention provides a large-size single crystal cutting device and a method for using the same, including: a reversing system and a detection system, characterized in that: the reversing system is arranged on the cutting device to adjust the tension and line speed of the steel wire; the detection system is arranged on the reversing system to detect the tension of the steel wire. The beneficial effect of the present invention is to effectively solve the problem that the two tension arms for controlling the tension of the device are at the wire-releasing end and the wire-receiving end of the device, but the tension of the middle wire net cannot be guaranteed, and the current increase in the diameter and length of the single crystal leads to an increase in the cross-sectional area during the processing, and the tension cannot be evenly distributed at each cutting point, and the current steel wire net reversing device is a driven wheel, which will also lead to the inability to increase the lateral line speed, resulting in the problem that the processing efficiency cannot meet the on-site production needs.

The invention discloses a catalytic slurry oil hydrotreating process and a needle coke production method. The catalytic slurry oil hydrotreating process comprises the following steps: firstly, cutting catalytic slurry oil to obtain first distillate slurry oil and second distillate slurry oil; the first distillate oil slurry enters a hydrofining reaction zone for reaction, and refined first distillate oil slurry is obtained after separation; and mixing the refined first distillate oil slurry with the second distillate oil slurry to obtain hydrogenated oil slurry. The invention also provides a production method of the needle coke. The obtained hydrogenated slurry oil is used as a feed to enter a delayed coking unit to produce the needle coke. The method can inhibit the generation of coke breeze in the needle coke production process, the obtained needle coke product has the advantages of low volatile component content, high hardness and high wear resistance, and the operation cycle of the whole device can be prolonged.

The utility model discloses an energy-saving fluid motor resistant to high pressure and pressure pulsation, and relates to the technical field of hydraulic motors, the energy-saving fluid motor comprises a motor body, cup-shaped blades, an output wheel shaft and a shock wave recoverer; the periphery of the output wheel shaft is connected with a plurality of cup-shaped blades; the motor body is further provided with an oil inlet channel, an oil outlet channel and a shock wave channel. The large pulse flows through a shock wave recoverer at the bottom of the shock wave channel, is boosted and stabilized and then enters a flow-aiding channel and a braking channel on the two sides; a flow-aiding control valve is connected in the flow-aiding channel, and a brake control valve is connected in the brake channel; when the flow-aiding control valve is opened, the cup-shaped blade drives the output wheel shaft to rotate under the impact of incoming flow in the oil inlet channel and the flow-aiding channel; when the brake control valve is opened, the brake channel conveys the pulsating flow subjected to pressure boosting and pressure stabilizing into the cup-shaped blades, rotation of the cup-shaped blades is hindered, and the output wheel shaft can achieve flexible semi-brake under the action of opposite torque.

The utility model relates to a kind of seeding device components, especially a secondary seed guiding mechanism of high-speed seeding point seeding device suitable for cotton, corn or sunflower large-grain seeds, containing annular clamping plate (11) of both sides and the guide plate (12) between annular clamping plate (11), guide plate (12) is the plate that is radially erected between guide plate (12) cross section presents "scoop", and, the guide plate (12) will annular clamping plate (11) between be separated into several curved and be equipped with import and export radial passage.For the utility model can greatly increase the diameter of seeding point seeding cylinder, set more point seeding nozzle on point seeding cylinder, in the same case of seeding speed, can substantially reduce the linear velocity of seed taking tray, prolong seed taking time, ensure the reliability of seed taking, to further improve seeding speed and operation quality.

The utility model relates to a medical cutter and a medical grinding device. The medical cutter comprises a supporting handle body, an outer cutter tube, an inner cutter bar and a sealing sleeve. The near end of the outer knife tube is connected with the supporting handle body. The inner cutter bar is rotatably arranged in the outer cutter tube in a penetrating mode and further rotatably arranged in the supporting handle body in a penetrating mode. The sealing sleeve is arranged in the outer cutter tube, the inner cutter bar penetrates through the sealing sleeve, and the outer wall of the inner cutter bar and the inner wall of the sealing sleeve are arranged at intervals. By means of the arrangement, the sealing sleeve plays a role in blocking liquid, has good sealing performance and can prevent the liquid from flowing into the supporting handle body along the interval space between the inner cutter bar and the outer cutter tube. Besides, under the condition that the sealing sleeve is arranged, the outer diameter of the inner cutter bar can be reduced as much as possible, the linear speed of the inner cutter bar during high-speed rotation is relatively reduced, and therefore heating during dynamic sealing can be reduced, abrasion is reduced, and the service life can be prolonged.