110results about How to "Increase air flow rate" patented technology

A water condenser includes a fan which draws a primary airflow through an upstream refrigerant evaporator, through an air-to-air heat exchanger and in one embodiment also an air-to-water heat exchanger uses cold water collected as condensate from the evaporator, the airflow to the evaporator being pre-cooled by passing through the air-to-air heat exchanger and the air-to-water heat exchanger prior to entry into the evaporator wherein the airflow is further cooled to below its dew point so as to condense moisture onto the evaporator far gravity collection. The evaporator is cooled by a closed refrigerant circuit. The refrigerant condenser for the closed refrigerant circuit may employ the fan drawing the airflow through the evaporator or a separate fan, both of which drawing an auxiliary airflow separate from the airflow through the evaporator through a manifold whereby bath the auxiliary airflow and the airflow through the evaporator, or just the auxiliary airflow are guided through the condenser and corresponding fan.

The invention relates to the technical field of breakwater engineering and wave power generation, in particular to a floating breakwater generation device arranged in open sea. The floating breakwater generation device comprises floating members, air turbine generator sets, air chambers, airflow passages, mooring systems and signal transmission devices, and is characterized in that the floating members are respectively connected with concrete anchor blocks at the sea bottom through anchor chains; a plurality of wave dissipating perforations penetrating through a floating body are formed in the head-sea face of each floating member; the air turbine generator sets are respectively arranged in the airflow passages; the floating bodies are driven by waves to vertically move, so that water in the air chambers vibrates and air in the air chambers is pushed to move, and the air turbine generator sets are further driven to generate electricity. The floating breakwater generation device disclosed by the invention has the characteristics of being stable in structure, low in erection cost, high in generation conversion efficiency, convenient to maintain, and the like, and can be applied to sea areas with deep water, high waves and complex terrain; while wave impacts are weakened and a steady water area environment is provided for surrounding water areas, the waves can be converted into electric energy, and the electric power supply problem of harbor district or island residents is effectively solved.

The invention relates to a cloth negative pressure finishing singeing device, which comprises a frame, a cloth guide roller, a carding assembly and a negative pressure hair removal assembly. During the rotation, the fibers attached to the surface of the cloth are erected, adsorbed and pulled; there is a fluff shaping space between the negative pressure hair removal component and the cloth. And the adsorption holes and the deflectors and heating wires respectively arranged on both sides of the removal pores, the airflow flows along the hair removal chamber and is guided by the deflectors to form an airflow acceleration zone, and a negative pressure zone is formed between the deflectors and the adsorption holes; The carding component erects the fiber and shapes it, and then pulls the fiber with the adsorption force to contact the heating wire to realize singeing. At the same time, the broken fiber is collected by the airflow conduction separation component, which solves the problems existing in the prior art. Poor singeing effect and inconvenient dust removal technical problems.

A blade structure of an axial fan is disclosed. The blade structure includes a hub and a plural of fan blades. The fan blades are disposed equidistantly on a periphery of the hub along a rotating direction of the hub. Each fan blade includes a first blade and a second blade. The first blade has a first leading edge and a first trailing edge, and the second blade having a second leading edge and a second trailing edge. A line connecting the first leading edge and the first trailing edge of each fan blade is a first chord line. The second leading edge is located at a line extended along the first chord line, and the separation between the first blade and the second blade is smaller than a distance of adjacent fan blades on the periphery of the hub.

The invention belongs to the technical field of a device or a method for smearing liquid or other liquid on the surface, and particularly discloses a furniture painting device. The furniture paintingdevice comprises a stander, wherein the stander is provided with a conveyor belt, two sides of the conveyor belt are respectively provided with two driving shafts being symmetric about a symmetric axis along the length direction of the conveyor belt, and each driving shaft is provided with a grinding mechanism, a dust clearing mechanism, a painting mechanism and a rapid air drying mechanism; the grinding mechanism comprises a first grinding belt pulley, the first grinding belt pulley is provided with a grinding belt, the dust clearing mechanism comprises a driving gear, the driving gear is engaged with a driven gear, the driven gear is coaxially provided with a first rotating shaft, the surface of the first rotating shaft is fixedly connected with a propeller blade, and the propeller bladeis used for blowing dust adhered onto the grinding belt; and the painting mechanism is driven by the driving shaft, and the rapid air drying mechanism is arranged in front of a first painting box along the moving direction of the conveyor belt and driven by the driving shaft. The furniture painting device aims at solving the problem in the prior art that the manual painting efficiency is low.

The invention relates to a centrifugal compressor (1) for an exhaust gas turbocharger, in particular an internal combustion engine. The centrifugal compressor has a compressor housing (2) comprising an axial inlet channel (3) and a centrifugal outlet channel (4); with a compressor impeller (6) for circulating and compressing a gas, wherein the compressor impeller (6) has an axial inlet side (7) facing towards an inlet passage (3), a centrifugal outlet side (8) facing an outlet channel (4), and an axial wheel surface contour (9) extending from the inlet side (7) extends up to the outlet side (8); a substantially sleeve-like adapter element (10) which may be axially inserted into an attachment portion (11) disposed at the compressor housing (2); wherein the adapter element (10) comprises, at least in sections, a surface contour (13) which is attached to the axial wheel surface contour (9), such that a gap width (W) between the adapter element (10) and the compressor impeller (6) can be adjusted along mutually facing surface contours (9, 13) through axial movement of the adapter member (10) in a fastening portion (11).

The present invention relates to a self-assembly micro blade applied to a micro fan. The micro fan combines at least a self-assembly micro blade and a motor using an actuator as the main body of the micro fan. The self-assembly micro blade includes at least a movable part of a microstructure, at least an elastic joint provided between an outer ring of the micro fan and the movable part. The elastic joint is composed of a polyimide film, which is heated to contract and generate surface tension by using a reflow process so as to lift up the movable part of the microstructure; moreover, the movable part is bent in a curved form through the elastic link exhibits a multi-layer shape by serially connecting at least two movable parts so as to complete the self assembly of the micro blade, thereby increasing air flow rate and improving air flow length.

The invention relates to the field of manufacturing of liquid storage cylinders of hydraulic shock absorbers and provides a cleaning method for a liquid storage cylinder of a hydraulic shock absorber. The method comprises the following steps of: dryly brushing the inner cavity of the liquid storage cylinder through relative axial movement and relative rotation of a brush and the liquid storage cylinder; and then aerating the inner cavity to blow the inner cavity and exhausting the inner cavity to suck dust in the inner cavity while the inner cavity of the liquid storage cylinder is sealed. A special cleaner is provided with a dust brushing position, a dust sucking position, a compressed air source, a filter-containing compressed air pipeline, a negative pressure dust sucking device and a negative pressure pipeline, wherein a brush head of the dust brushing position and the liquid storage cylinder do relative axial movement along the axial direction of a brush rod through the driving of a reciprocating mechanism and do relative rotation along the axial direction of the brush rod through the driving of a rotation driving mechanism; and in the dust sucking position, a sealing structure seals the inner cavity of the liquid storage cylinder to form a sealed dust sucking cavity, and the cavity wall of the whole dust sucking cavity is blown and the dust in the dust sucking cavity is sucked through a dust sucking structure and a blowing structure. The cleaning effect is good; clean water, a detergent and drying are not required; the method is environment-friendly, and is low in consumption and low in cost; and no liquid is left. Therefore, the method is suitable for cleaning the liquid storage cylinder before the liquid storage cylinder is assembled.

The invention discloses an air compressor head, and relates to the field of air compressors. The air compressor head comprises a motor, pump heads located at the two ends of the motor and air cylinder assemblies arranged on the pump heads, a pair of air pipes are arranged between the two air cylinder assemblies in a communicating mode, several uniformly-distributed heat dissipation fins are arranged at the top of each air cylinder assembly, a gap is formed between every two adjacent heat dissipation fins, cooling pipes are embedded in the gaps, one ends of the multiple cooling pipes are provided with a water inlet pipe in a mutual communicating mode, and the other ends of the multiple cooling pipes are provided with a water outlet pipe in a mutual communicating mode. The air compressor head has the following advantages and effects that when the air compressor head works, the air cylinder assemblies undergo cooling and temperature reduction through the heat radiation principle of the heat dissipation fins, and meanwhile, the air cylinder assemblies undergo cooling and temperature reduction through the heat exchange principle of the cooling pipes jointly, so that the cooling efficiency and the cooling effect of the whole air compressor head are improved, and the air compressor head achieves the effects of high cooling performance and high heat dissipation performance.

The invention relates to a textile singeing production technology process. The textile singeing production technology process comprises the following steps: shaping and carding fibers on the surface of a fabric to be burned by utilizing primary negative pressure adsorption in a rotary contact manner by virtue of a carding assembly; transporting the shaped and carded fabric to a singeing workstation, successively transporting the erected fibers to a primary singeing area and a secondary singeing area by virtue of a secondary negative pressure adsorption way, performing two-level singeing treatment on the fibers by utilizing an electric heating way, and automatically outputting the fibers; purifying waste gas generated after the singeing treatment by spraying water, then guiding the waste gas to the singeing workstation to assist the heat supply, and collecting dust in the waste gas by virtue of a dust falling space; and erecting and shaping the fibers on the surface of the fabric by virtue of the carding assembly, pulling the fibers to contact an electric heating wire by virtue of an adsorption force, so that while the singeing is realized, the broken and falling fibers are collected by virtue of an airflow transfer and separation assembly, the heat of the airflow is circularly utilized, and the technical problem in the prior art that the singeing effect is poor and the dust is inconvenient to remove can be solved.

A cooling configuration is provided for chassis-mounted electronics boards. In one embodiment, the chassis comprises a housing and at least two electronics boards. The electronics boards may comprise communication boards having a plurality of ports. Cooling air spaces are defined above and below each board, permitting cooling air to be drawn over both sides of each board. Baffles may be provided at both sides of the boards for controlling the flow of air through the various air spaces, such as baffles extending down from a top of the housing or up from a bottom of the housing, or baffles located between the boards.

The invention relates to an efficient meridian acceleration axial flow fan with a casing. The efficient meridian acceleration axial flow fan comprises an air barrel, a motor, blades and a wind wheel. The wind wheel is a cone column, The air barrel is a tubular body of a trapezoidal structure, and in the airflow flow direction, the inner diameter of the front of the air barrel is larger than that of the rear of the air barrel, and the outer diameter of the blades is larger than the inner diameter of the rear of the air barrel and smaller than the inner diameter of the front of the air barrel. A collector is fixedly connected to the front end of the air barrel, and a flow guide barrel is connected to the rear end of the air barrel. The flow guide barrel is composed of an outer barrel body, an inner barrel body and guide vanes. The outer diameter of the front section of the inner barrel body is equal to the outer diameter of the rear end face of the wind wheel. A T-shaped support is arranged in the inner barrel body, the inner barrel body is fixedly connected with the motor through the T-shaped support, 13 radial flow guide vanes are evenly distributed between the inner barrel body and the outer barrel body, and the section of each flow guide vane is in a wing type. When airflow passes through a rotating impeller, blade top leakage is reduced, pressure is increased, the efficiency of the fan is improved, in addition, the airflow is rectified though the guide vanes in the flow guide barrel, and the efficiency of the fan is improved.

The invention belongs to the field of wood-working machines, and discloses a band sawing machine with a wood dust removal and separation function. The band sawing machine with the wood dust removal and separation function comprises a machine body, a workbench mounted on the machine body, a saw band mounted on the machine body, a supporting device mounted on the workbench, a dust collection assembly arranged below the workbench, an air pipe assembly movably mounted on the machine body and a compressed air pump connected with the dust collection assembly and the air pipe assembly through pipelines correspondingly. Most saw dust on the sand band can be removed through an air blowing pipe, and thus, the service life of the saw band is prolonged; and saw dust is separated through the dust collection assembly according to sizes so as to be used by users on different occasions, and thus, reasonable utilization of the saw dust is achieved.

The electric hair drier comprises an electric hair drier which comprises a shell and a wind speed cover, an air inlet duct is formed in the shell, and an air inlet and an air outlet which communicatewith the air inlet duct are formed in the two ends of the shell correspondingly; the wind speed cover is connected to the end, provided with the air outlet, of the shell, an air outlet duct is formedin the wind speed cover, the wind speed cover is further provided with an air flow inlet and an air flow outlet which are communicated with the air outlet duct, the air flow inlet is communicated withthe air outlet, and the air flow outlet is an annular air outlet, wherein the air inlet duct and the air outlet duct are arranged at an included angle. According to the technical scheme, the air outlet speed of the electric hair drier can be increased, and the energy consumption of the electric hair drier is not increased.

The invention discloses a coreless wooden heat-insulating fireproof door, which comprises a door leaf and a door frame and is characterized in that: the door leaf comprises a door leaf framework; magnesium inorganic fireproof boards are pressed at the two ends of the door leaf framework; the external surfaces of the magnesium inorganic fireproof boards are covered by flame-retardant plywood boards; the two sides of the door leaf is respectively provided with a heated surface and an unexposed surface; the door leaf framework comprises frameworks arranged on left and right sides; middle frameworks are arranged between the frameworks; channels for airflow circulation are formed between the middle frameworks or among the middle frameworks and the frameworks on the two sides; a hollow shape is formed in the door leaf without filling any flame-retardant heat-insulating material; and upper and lower stiles of the door leaf are provided with vent holes opposite to the channel. The problems can be well solved; and the product can meet the requirements of fire insulation and fire integrity and can also meet the stipulations of the national standard.

The invention discloses a flow guiding plate designing method which comprises the following steps that according to the model and the structure of a car cabin front end grid and the deviation situation of a cooling module and the grid at a forward-direction projection position, an initial structure of flow guiding plates is determined, and the initial structure at least comprises the shape, the number and the arranging positions of the flow guiding plates; according to the air flow backflow route in the cabin under an idling or low-speed working condition of a car, the initial structure is adjusted, the assembling positions of the flow guiding plates are determined, and the air flow backflow route is blocked; the flow guiding plates are optimized, and a cooling module and cooling air amount meet the requirement of a car cooling system; and the arrangement between the flow guiding plate and the cooling module is optimized, and accordingly pneumatic resistance in the car cabin is lowered. The invention further discloses the flow guiding plate structure designed with the flow guiding plate designing method. According to the flow guiding plate designing method and the flow guiding plate structure designed with the same, hot gas backflow can be avoided, the air inlet amount of the cooling module is increased, and pneumatic resistance can be lowered.

The invention relates to the technical field of label sticking, and specifically discloses a labeling device of an anti-counterfeit label for bottled products, comprising a conveying pipe, wherein oneend of the conveying pipe is an inlet section, the other end of the conveying pipe is a labeling section, the inner wall of the labeling section is provided with a strip groove, an air inlet is formed at the junction of the inlet section and the labeling section; one end the air inlet pointed to the conveying pipe is inclined towards the labeling section; the end of the labeling section is provided with a telescopic limiting pin; a label conveying mechanism and a glue spraying mechanism are arranged below the conveying pipe, the label conveying device comprises a feeding roller and a receiving roller, a label inlet communicating with the labeling section is arranged on the wall facing downwards of the conveying pipe, and a cutter capable of sliding vertically is arranged below the label inlet; the glue spraying mechanism comprises a glue solution storage tank and a suction hose fixed with the cutter; the suction hose extends into the glue solution storage tank, the periphery of the label inlet is provided with a plurality of spraying holes communicating with the inside of the conveying pipe, the spraying holes communicate with the suction hose through a corrugated pipe; when a wine bottle passes through the conveying pipe, the wine bottle can be positioned and labeled.

The invention relates to a wind turbine wake dissipation device which is fixed to the rear of a cabin of a wind turbine through a fixing support. The dissipation device includes a thin-wall cylinder main body, the thin-wall cylinder main body is evenly divided into a plurality of square spaces and a plurality of irregular spaces through plate-shaped supports orthorhombic with each other, wake pipes are mounted in the spaces evenly separated by the plate-shaped supports, the wake pipes in the square spaces are cylindrical, the wake pipes in the irregular spaces are similarly cylindrical, a plurality of air guide wings are mounted in the wake pipes, gaps are formed between the wake pipes and the thin-wall cylinder main body and between the wake pipes and the plate-shaped supports, a conicalflow guide cover is mounted at the position of a gap air inlet, and an air gathering cover is disposed on one side of an air inlet of the thin-wall cylinder main body and along the thin-wall cylindermain body. According to the wake dissipation device, by reducing the influence of disordered wake on downstream wind turbines, the arrangement distance between the wind power plant wind turbines is shortened, and the land utilization rate of a wind power plant is improved.

The invention relates to the technical field of board polishing equipment, and particularly relates to an environment-friendly polishing device for furniture board processing. The environment-friendlypolishing device comprises a device body, wherein a driving shaft is inserted into the device body, a limiting wheel sleeves the driving shaft, a moving plate is movably connected into the device body, an extrusion plate is fixedly connected to the upper surface of the moving plate, a cross rod is fixedly connected to the front surface of the extrusion plate, and a limiting spring is fixedly connected to the lower end of the front surface of the moving plate. The driving shaft is stopped, so that the device is prevented from continuously rotating after finishing, scratches on the surface of apolished board are avoided, the board can be well protected, and the working efficiency of the device is improved. Residues on the surface of the board move in the direction with low pressure, so that the surface of the board is smooth, a push rod extrudes polishing liquid in a storage tank, operation of the device is facilitated, and the polishing liquid is reasonably used.

The invention provides a universal protection hanging plate for an automobile tire. The universal protection hanging plate is characterized by comprising a circular protection plate (1), wherein a circular hole (1a) is formed in the circular protection hanging plate (1); a mounting plate (2) is provided; a group of support sheets (3) is connected between the circumferential surface of the mounting plate (2) and the circumferential surface of the circular hole (1a); the mounting plate (2) and the circular hole (1a) are coaxial to each other, and are kept a certain vertical distance away from each other. The universal protection hanging plate has the advantages of simple structure, rapidness and convenience in mounting, and capability of effectively preventing weak positions on the outer side face of the tire from being damaged by explosion, gunshot and the like; meanwhile, the heat dissipation effect of the tire is enhanced during wheel running.

The invention relates to the technical field of dispensing equipment for main boards of game handles, in particular to a saving-type dispersing device used in the production of a main board of a gamehandle. The saving-type dispersing device comprises a fixing frame, wherein an equipment shell is fixedly connected to the lower surface of the fixing frame, a driving shaft is inserted into the equipment shell, a first gear is engaged with the outer surface of the driving shaft, a glue outlet pipe is inserted into the lower end of the equipment shell, a crank connecting rod is movably connected to the front surface of the first gear through a shaft, and a pressing rod is movably connected to the lower end of the crank connecting rod through a shaft. The glue is sucked by suction, the residualglue on the inner part of the glue outlet pipe can be well prevented from dropping through the suction, thus the waste caused by excessive glue is avoided, according to the relationship between gas flow and pipe diameter, the pipe diameter at the lower end of an air pipe is decreased, thus the passing air speed is increased, the air flow rate is strengthened, and the flowing glue can be evenly dropped on the main board of the game handle.

According to the present invention, a wire insulation layer (112) and an interlayer insulation layer (113) are formed on a wire (111). A main insulation layer (114) is formed by winding highly thermally conductive mica tape. A first outer insulation layer (115) formed from heat-shrinking material and a second outer insulation layer (116) formed from a highly thermally conductive resin are formed at a coil end section. Due to this configuration, the thermal conductivity of the coil, particularly of the coil end section, is improved, thereby enabling improved cooling performance.

An alternating current motor heat dissipation protection device is disclosed by the present invention, and comprises a shell, an element cavity, a buffer cavity and an electric connection cavity are formed in the shell, a resistor, an electromagnet and a diode are fixed in the element cavity, and the inner wall of the buffer cavity is rotatably connected with a rotating shaft through a torsion spring. The rotating shaft penetrates through the buffer cavity and the electric connection cavity to extend out of the shell and is fixedly provided with a rotating plate, a slow release mechanism is arranged in the buffer cavity, and the rotating plate is fixed to the circumferential side wall of the section, located in the electric connection cavity, of the rotating shaft. The device has the advantages that the electromagnet and the telescopic rod are arranged, the electromagnet generates an intermittent magnetic field through the unidirectivity of the diode, then the telescopic rod stretches out and draws back in a reciprocating mode, a push plate reciprocates, air flow is pumped, the air flow continuously flows in a suction hole and an exhaust hole, the flow speed of the air flow around the motor is increased, and the hot air flow is quickly diffused, so that the motor can effectively dissipate heat.

The invention discloses a synchronous air-blowing soil-covering type seed throwing device of a rice direct-seeding seed metering device. The synchronous air-blowing soil-covering type seed throwing device of the rice direct-seeding seed metering device is characterized in that a stop valve is installed at an air outlet of an air compressor, an air inlet of a barometer is connected with an air outlet of the stop valve through a pneumatic conveying pipe, and an air inlet of an air volume control valve is connected with an air outlet of the barometer through a pneumatic conveying pipe; an air inlet of a pressure transmitter is connected with an air outlet of the air volume control valve through a pneumatic conveying pipe, and an air inlet of a nozzle of a seed throwing pipe is connected with an air outlet of the pressure transmitter through a pneumatic joint; a seed guiding joint is fixedly connected with the bottom of the seed metering device, and a seed inlet of the seed throwing pipe is connected with the bottom of the seed guiding joint; the air compressor provides constant positive-pressure airflow, the seed metering device provides uniform rice seed flow, rice seeds and the positive-pressure airflow are mixed in the seed throwing pipe, and the seed throwing pipe sprays out mixed fluid at a high speed. The synchronous air-blowing soil-covering type seed throwing device of the rice direct-seeding seed metering device has the advantages of being large in air pressure adjustable range, long in stabilization time and high in seed throwing airflow velocity.

The invention relates to an energy collection pipe transferring wind energy generator that belongs to wind collection ultra-large wind power generating device. It has at least one bugle-shaped wind collection mouth connecting wind guiding pipe that connect to the sealed machine room and the entrance is aiming at the wind energy generator driving structure or the generator impeller. A chimney type suction ventilation pipe extending to upward is set on the top of the sealed machine room. The invention could omnidirectionally suck wind power and expand the acreage of wind collecting. And the wind energy wasted in wind guiding pipe is low, so the generator works steadily.

The invention provides a bearing module and a bearing. The bearing comprises a cage and a bearing guide ring; a radial gap is formed between the bearing guide ring and the cage; the bearing guide ringis provided with a guide ring gas guide hole; and the guide ring gas guide hole communicates with the radial gap, and extends to the outer surface of the bearing guide ring. In the working process ofthe bearing, external gas is provided to the bearing through a gas source, and the gas enters the radial gap through the guide ring air guide hole formed in the outer surface of the bearing guide ring, so that the friction caused by impact contact between the bearing guide ring and the cage can be prevented, and the service life of the bearing is prolonged.

The invention discloses cutting equipment for leather. The cutting equipment comprises a device box body, wherein a transverse displacement cavity is formed in the device box body, a longitudinal displacement cavity is in communication below the transverse displacement cavity, and two vertical displacement devices which are perpendicular to each other are arranged in the transverse displacement cavity and the longitudinal displacement cavity. The cutting device is provided with a cutting device base, the cutting device base is internally provided with a driving cavity and a power cavity, a displacement shaft is arranged in the driving cavity and the power cavity in a sliding mode, the flow speed of the air flow in an air inlet is accelerated by starting an exhaust fan of a low-pressure conveying device, the air pressure in a through hole of a conveying belt is reduced and even close to the vacuum, so that the leather needing to be machined can be stabilized on the machining plane, thevertical displacement shaft ensures flexible movement of the cutting device base, and the horizontal position of the cutting device base can be conveniently controlled through a coordinate axis.

The invention provides an environmentally-friendly air salute. The environmentally-friendly air salute is composed of an overflow valve (1), an air-charging nozzle (2), a pressure gauge (3) and one or more salute launching units. Each launching unit comprises a one-way valve (4), an electromagnetic directional valve (5) and a salute unit body (6); by injecting high-pressure air into airtight cavities of the salute unit bodies and controlling switches to rapidly exhaust air, explosion sounds like salutes and firecrackers can be generated, and the exhausted high-speed airflow can launch fireworks into air. The whole system can basically achieve the functions of traditional gunpowder-type fireworks and crackers. The environmentally-friendly air salute is safe and reliable in performance, achieves zero emission, and is free of pollution, capable of being recycled, economical, environmentally friendly, simple in structure and convenient to operate.

The present invention relates to a motor (60) for a washing machine for enhancing rigidity of a rotor frame (122), easy verification and adjustment of a gap, and improving a cooling performance of the motor (60). To achieve the objects of the present invention, a motor (60) for a washing machine includes a stator (110) having an AC power applied thereto, a rotor core (124) on an outer side of thestator (110) mounted so as to be rotatable by interaction of electromagnetic force with respect to the stator (110), a rotor frame (122) arranged to surround the outer side of the stator (110), rotorcore securing means (154,155) formed along a side of the rotor frame (122) for seating, and securing the rotor core (124), and preventing the rotor core (124) from moving in up / down directions, strength reinforcing means (148) for improving strength of the rotor frame, and gap verifying means (156) provided to the rotor frame (122) for verifying a gap between the rotor.