31results about How to "Axially compact" patented technology

The invention discloses a high-power microwave mode conversion speaker antenna and is intended to solve the problems, for instance, an existing speaker antenna is unable to be directly used to transmit high-power microwave and is poor in axial compactness. The high-power microwave mode conversion speaker antenna is composed of a speaker antenna and a mode conversion lens; the speaker antenna is composed of 2 flanges and an antenna body; the mode conversion lens is composed of a first matching layer, a metal disc, a filling medium, and a second matching layer; the metal disc is formed by combining a plurality of mode conversion units in honeycomb arrangement, the cross section of each mode conversion unit is regularly hexagonal, and as seen from the cross section of the metal disc, the regular hexagons are tightly arranged in a circle shape; prism bodies, with regularly hexagonal section, of the mode conversion units are each provided with 5 holes, and the filling medium fills the 5 holes evenly. The high-power microwave mode conversion speaker antenna is better in axial compactness, may ensure lossless transmission of microwave, and has high power capacity, gain and aperture efficiency.

The invention belongs to a novel manufacture method of a curling automobile hub bearing unit, belonging to the manufacture method of automobile spare parts and solving the defect that a bearing of a traditional automobile hub bearing unit is uniformly axially fixed in a bearing seat. The manufacture method of the curling automobile hub bearing unit comprises the following steps: firstly, processing the bearing seat into a bearing mounting cavity and a coiling ring; secondly, mounting the bearing in the bearing mounting cavity; and thirdly, using a spiral riveting machine for coiling processing. The spiral riveting machine uses a die with a vertical cross section in a reversed Y shape to vertically axially place the bearing seat on a spiral riveting machine worktable, and the die moves downwards to roll the coiling ring towards an inner cavity of the bearing seat until the coiling ring is tightly stuck to the end surface of the bearing to form a coiling loop; the end surface of the bearing and the coiling loop axially position the bearing, and the inner wall of the bearing mounting cavity radially positions the bearing. The curling automobile hub bearing unit made by adopting the method has high reliability and stability.

The invention discloses an electromagnetic tooth embedding type clutch used for achieving driving separation and reunion of a first motor and a second motor. The clutch comprises a joystick, an annular electromagnet, an armature, an elastic reset mechanism, a movable end face gear and a fixed end face gear, wherein the joystick is inserted in an inner cavity of a rotor of the second motor, the two ends of the joystick are located on the two sides of the rotor of the second motor respectively, a magnetic attraction mechanism and a mesh transmission mechanism are located on the end sides of the rotor of the second motor respectively, compact axial arrangement is achieved, and therefore space of the clutch is substantially saved, and structural compactness degree of the clutch is improved. The invention further discloses a two-motor hybrid power system, under the action of the structural characteristics of the electromagnetic tooth embedding type clutch, an engine, the first motor and the second motor can be coaxially arranged, and according to the arrangement mode, not only is the advantage that the structure is compact achieved, but also transmission efficiency is improved.

A mixed flow fan comprises a motor, a casing, an impeller, guide vanes and a flow collector. The guide vanes are coaxially and fixedly arranged on the inner side of one end of the casing; the motor isarranged in the center of a hub of the guide vanes; an output shaft of the motor is fixedly connected with the center of the impeller; the flow collector is arranged on the inner side of the other end of the casing, and the flow collector and the impeller are on the same side; the hub of the guide vanes and the hub of the impeller have the same diameter. The variable concave-convex casing line provided by the invention is formed by tangency of a section of concave arc and a section of convex arc, so that the included angle between the inlet and the outlet and the rotating shaft is zero, meanwhile, a large diameter difference between the inlet and the outlet of the impeller can be ensured, and the airflow pressure is increased by fully utilizing centrifugal force. By the adoption of the design, the size of a non-acting area is reduced, airflow axially enters the non-acting area, energy is obtained in the impeller and converted into axial flow from inclined upward flow, then part of kinetic energy of the airflow is converted into pressure energy in the guide vanes, and airflow pressure is improved.

The invention discloses a heavy load single waveform generator harmonic reducer with ultrashort designed life, relates to the technical field of aerospace, and aims to solve the problems that the existing harmonic reducer is large in size and obviously redundant in service life to reduce the effective load of an aerospace vehicle. The heavy load single waveform generator harmonic reducer comprisesa bevel pinion, a left shell, a resetting shaft, a bevel gear wheel, a wave generator, a fixed steel wheel, a flexible gear, an output shaft and a right end cover, wherein the rear end of the resetting shaft is fixedly connected with the output shaft horizontally; the bevel gear wheel is mounted on the outer side of the resetting shaft in a sleeving manner and is meshed with the bevel pinion; thewave generator is mounted on the outer side of the bevel gear wheel in a sleeving manner and is an eccentric circular ring; the flexible gear is mounted on the outer side of the wave generator in a sleeving manner; and the outer gear of the flexible gear is meshed with the inner gear of the fixed steel wheel and the inner gear of the output shaft. The heavy load single waveform generator harmonicreducer is used for aerospace drive.

The invention provides an external current transformer assembly and a gas insulated switchgear with the same. The external current transformer assembly comprises a shell, a first flange, a second flange, a first partition plate, a second partition plate and at least one magnetic core and winding module, wherein the shell comprises a barrel; the first flange and the second flange are located at two ends of the barrel; the first partition plate is arranged outside the first flange; the second partition plate is located between the first partition plate and the second flange; the at least one magnetic core and winding module sleeves the barrel; the gas insulated switchgear comprises three phases; each phase is provided with a housing and comprises three external current transformer assemblies; and each external current transformer assembly is correspondingly arranged on one housing. According to the external current transformer assembly provided by the invention, the axial size of the shell can be effectively reduced; and the structure of the gas insulated switchgear is more compact through a special structure arrangement mode of three external current transformer assemblies, so that the occupied space of the gas insulated switchgear is effectively reduced.

The invention discloses a high-power mode conversion super-lens antenna capable of realizing the beam deflection, and aims to solve the problems that a high-power microwave antenna does not have a mode conversion function and is lengthy in axial structure. The antenna is composed of a horn antenna, a polarization conversion super lens, a positioning flange plate and a mode conversion super lens. The polarization conversion super lens is formed by arranging and combining a plurality of polarization conversion super lens units in a honeycomb shape, two arch-shaped columns and two supporting rodsare arranged in a through hole in the center of each unit, and two matching grooves are formed in the two ends of each unit respectively. The cross section of each polarization conversion super-lensunit is a regular hexagon and the polarization conversion super-lens units are closely arranged into a circle. The mode conversion super lens is formed by arranging and combining a plurality of mode conversion super lens units in a honeycomb shape, and two arch columns and two supporting rods are arranged in a through hole in the center of each unit. The cross sections of the mode conversion superlens units are regular hexagons and are closely arranged into a circle. The invention has the advantages of compact axial direction, compact axial structure and low loss, can realize mode conversion,and can change the emitting direction of the wave beam.

The invention provides a lifting stand column with a small installation distance. The lifting stand column comprises a driving device, a lifting pipe and a transmission assembly. The lifting pipe comprises a first pipe, a second pipe, a third pipe, a fourth pipe and a fifth pipe. The lower end of the fifth pipe is fixed to the driving device. The transmission assembly comprises a first screw rod,a second screw rod, a third screw rod and a fourth screw rod. The output end of the driving device is in transmission fit with the first screw rod and can drive the first screw rod to rotate. The lower end of the second screw rod is provided with a first nut in threaded transmission connection with the first screw rod. The lower end of the third screw rod is provided with a second nut in threadedtransmission connection with the second screw rod. The lower end of the fourth screw rod is provided with a third nut in threaded transmission connection with the third screw rod. The lower end of thefirst pipe is provided with a fourth nut in threaded transmission connection with the fourth screw rod. The adjacent screw rods are in threaded transmission connection, in addition, each nut is located between the corresponding two adjacent screw rods, the transmission assembly can be more compact in the axial direction and the radial direction, and the small installation distance and the large stroke of the lifting stand column are achieved.

The invention discloses a compact and stable quick pipeline connector. The connector comprises a connector shell, wherein one or more quick connecting ports are formed in the connector shell; a circle of connecting groove communicating to the end surface of each quick connecting port is formed in the inner wall of each quick connecting port; a sealing assembly is placed in each connecting groove; each connecting port is sleeved with a pipeline locking assembly; each sealing assembly comprises a sealing ring, a distance ring and an inner ring cover; each pipeline locking assembly comprises a clamping jaw ring, a shrinkage sleeve, a screw cap and an outer ring cover; each inner ring cover is arranged on the connector shell located at the outer side of one connecting port in a matched manner; each outer ring cover is arranged at the outer side of one inner ring cover in a matched manner; each clamping jaw ring is arranged between one inner ring cover and the corresponding outer ring cover in a matched manner; each screw cap is arranged at the inner side of one outer ring cover in a matched manner; the outer side edge of each inner ring cover, the outer side edge of each outer ring cover and the outer side edges of the two ends of the connector shell are all convex edges; and the outer sides of the convex edges are sleeved with the shrinkage sleeves. According to the compact and stable quick pipeline connector, disassembly and assembly operation of an external pipeline can be rapidly achieved.

The invention discloses a manufacturing process of an anti-sudden short circuit amorphous alloy transformer coil. The manufacturing process comprises the steps of 1 winding a low-voltage coil; 2 placing a main insulator; 3 winding a high-voltage coil; 4 brushing glue; 5 shaping; 6 curing; and 7 removing a form . The manufacturing process can effectively solve the problem that the sudden short circuit resistance of an amorphous alloy transformer is insufficient.

A transmission pulley, for a power transmission system including a belt having longitudinal grooves, having at least one end cap, a stack (E) of identical crowns, as well as means of connecting the crowns and the cap, parallel to a rotational axis (X10) of the pulley and rotating about this axis. The cap defines a hollow housing wherein half of the adjacent crown is engaged on one side of a median plane of the crown.

The invention relates to an electrical bridge driving system and a vehicle and discloses the electrical bridge driving system for the vehicle. The electrical bridge driving system for the vehicle comprises an electric motor (20), a first transmission shaft (31), a speed changing device (40), a first gear (61), a second gear (62), a differential mechanism (70) and a gear shifting device (50), wherein the the first transmission shaft (31) is connected to the electric motor (20) in an anti-torsion manner; the speed changing device (40) is arranged on the first transmission shaft (31) in a rotatable manner; the first gear (61) is arranged on the first transmission shaft (31) in a rotatable manner and connected to an output end of the speed changing device (40) in an anti-torsion manner; the second gear (62) is arranged on the first transmission shaft (31) in a rotatable manner; the differential mechanism (70) comprises an input gear (71); the gear shifting device (50) is arranged on the first transmission shaft (31), is positioned between the first gear (61) and the second gear (62) and is used for selectively transmitting the power of the electric motor (20) to the input gear (71) ofthe differential mechanism (70) through the first gear (61) or the second gear (62).

The invention discloses a hybrid vehicle and a power transmission system thereof. The power transmission system comprises a coupling mechanism clutch and an executing device, wherein the coupling mechanism clutch is used for connecting or cutting off power transmission between a driving motor and an engine, and the executing device is used for driving the coupling mechanism clutch to be turned on or off and is a linear motor, wherein the linear motor presses or loosens a diaphragm ring of the coupling mechanism clutch to control the coupling mechanism clutch to be turned on or off. In this way, the power transmission system of the hybrid vehicle can shorten the length of a transmission chain, avoids the energy loss of an intermediate transmission mechanism, increases response speed, and improves the reliability of the executing device.

A transmission includes a housing, an input member connectable to an engine output member, a sleeve member, and a launch clutch assembly connected to the input member and to the sleeve member, wherein the launch clutch is selectively engageable to transmit torque from the input member to the sleeve member. A first countershaft is rotatably supported within the transmission housing. A second countershaft is rotatably supported within the transmission housing. A plurality of co-planar gear sets are connected to the input member, sleeve member, and the countershafts. A plurality of torque transmitting mechanisms are provided for coupling various components of the co-planar gear sets to the input member, sleeve member, and countershafts. The selective engagement of the launch clutch assembly and the torque transmitting mechanisms establishes at least one of five forward speed ratios and a reverse speed ratio.

The invention discloses an electromagnetic tooth embedding type clutch used for achieving driving separation and reunion of a first motor and a second motor. The clutch comprises a joystick, an annular electromagnet, an armature, an elastic reset mechanism, a movable end face gear and a fixed end face gear, wherein the joystick is inserted in an inner cavity of a rotor of the second motor, the two ends of the joystick are located on the two sides of the rotor of the second motor respectively, a magnetic attraction mechanism and a mesh transmission mechanism are located on the end sides of the rotor of the second motor respectively, compact axial arrangement is achieved, and therefore space of the clutch is substantially saved, and structural compactness degree of the clutch is improved. The invention further discloses a two-motor hybrid power system, under the action of the structural characteristics of the electromagnetic tooth embedding type clutch, an engine, the first motor and the second motor can be coaxially arranged, and according to the arrangement mode, not only is the advantage that the structure is compact achieved, but also transmission efficiency is improved.

The invention relates to a multi-disc clutch (1) for a hybrid module (2) of a motor vehicle drivetrain (3), having a first clutch component (4a) and a second clutch component (4b) which can be coupled as desired to the first clutch component (4a) for conjoint rotation, wherein the first clutch component (4a) has a first carrier (7) which is provided for connection to a rotor (5) of an electric machine (6) for conjoint rotation and has a first group (8) of frictional elements (9a, 9b, 9c) which is connected to the first carrier (7) for conjoint rotation, and the second clutch component (4b) has a second carrier (10) and a second group (11) of frictional elements (12a, 12b) which is coupled to the second carrier (10) for conjoint rotation, wherein the frictional elements (9a, 9b, 9c) of the first group (8) are arranged in alternation with the frictional elements (12a, 12b) of the second group (11) next to one another in an axial direction of a common rotational axis (13), wherein a first frictional element (9a) of the first group (8), which first frictional element is connected in an axially fixed manner to the first carrier (7), is connected to a second frictional element (9b) of the first group (8) for conjoint rotation via a driver element (14) which is held for conjoint rotation and in an axially relatively displaceable manner on the first frictional element (9a) of the first group (8). The invention also relates to a hybrid module (2) and a dual clutch device (30), each designed with a multi-disc clutch (1). The invention also relates to a drivetrain (3).

A compact gearbox / motor combination for a portable power tool has a single partition plate 23 closing an end of the gearbox housing 24 and the motor housing 19. A shaft 14 of the motor is joumalled at one end in a self-aligning bearing 21 supported by an end cap 20 of the motor. The other end of the motor shaft 14 is journalled in a hole 41 in a gear carrier 29 of the gearbox.

The invention discloses a high-power microwave mode conversion speaker antenna and is intended to solve the problems, for instance, an existing speaker antenna is unable to be directly used to transmit high-power microwave and is poor in axial compactness. The high-power microwave mode conversion speaker antenna is composed of a speaker antenna and a mode conversion lens; the speaker antenna is composed of 2 flanges and an antenna body; the mode conversion lens is composed of a first matching layer, a metal disc, a filling medium, and a second matching layer; the metal disc is formed by combining a plurality of mode conversion units in honeycomb arrangement, the cross section of each mode conversion unit is regularly hexagonal, and as seen from the cross section of the metal disc, the regular hexagons are tightly arranged in a circle shape; prism bodies, with regularly hexagonal section, of the mode conversion units are each provided with 5 holes, and the filling medium fills the 5 holes evenly. The high-power microwave mode conversion speaker antenna is better in axial compactness, may ensure lossless transmission of microwave, and has high power capacity, gain and aperture efficiency.

The invention relates to a constant velocity joint, comprising a joint outside part (2) having ball tracks (7) on the inside circumference (4), a joint inside part (3) having ball tracks (8) on the outside circumference (5), wherein a ball track (7) on the joint outside part (2) and a ball track (8) on the joint inside part (3) form a ball track pair, one ball (9) per ball track pair and a cage (10) which is arranged between the joint outside part (2) and the joint inside part (3) and has windows (11) in which the balls (9) are received. According to the invention, a first group of ball track pairs, having ball tracks (7.1, 8.1) which are curved and extend in a radial plane encompassing the center axis (A) of the respective joint component, and a second group of ball track pairs, having ball tracks (7.2, 8.2) which extend straight and cross each other, are thus formed. The cage (10) is loosely guided on one of the two jointed components (2, 3) and spaced apart from the other jointed component (3, 2). This results in a particularly lightweight constant velocity joint which is simple and cost-effective to produce, having particularly high efficiency and particularly low interior friction.

The invention discloses a high-power microwave polarization conversion superlens antenna, which aims to solve the problem that the existing horn antenna does not have the polarization conversion function and the axial direction is not compact enough when matched with a waveguide circular polarizer. The invention consists of a horn antenna and a polarization conversion superlens. The horn antenna is composed of a first flange, a conical horn and a second flange. The polarization conversion superlens is composed of a plurality of polarization conversion superlens units arranged in a honeycomb shape. A through hole is drilled in the center of the polarization conversion superlens unit, and there are two arcuate columns inside the through hole, which respectively pass through the support rod and the through hole. The inner walls are connected, and two matching slots are respectively opened at both ends of the polarization conversion superlens unit. The cross-section of the polarization conversion metalens is a regular hexagon, which is closely arranged in a circle. The thickness of the invention is about one free space wavelength, the axial direction is more compact, and the power capacity is higher, the linear polarization mode can be directly converted into the circular polarization mode, and the circular polarization microwave mode can be radiated into the free space.

The present invention relates to a countershaft automatic transmission. The transmission includes a housing, an input member connectable to an engine output member, a sleeve member, and a launch clutch assembly connected to the input member and the sleeve member, wherein the launch clutch is selectively engageable to transfer torque from The input member passes to the sleeve member. A first countershaft is rotatably supported within the transmission housing. A second countershaft is rotatably supported within the transmission housing. A plurality of coplanar gear sets are connected to the input member, sleeve member and countershaft. A plurality of torque transmitting mechanisms are provided for coupling various components of the coplanar gear set to the input member, the sleeve member and the countershaft. Selective engagement of the launch clutch assembly and the torque transmitting mechanism establishes at least one of five forward speed ratios and one reverse speed ratio.

The invention relates to a plunger returning device for a bent axle connecting rod type radial plunger pump. The plunger returning device forms an integrated mechanism through a plunger, a pin shaft,a shaft pad and two lantern rings. Motion track of an eccentric cam is transmitted to the plunger when a transmission shaft with an eccentric cam rotates, and motion and an automatic returning function of the plunger are realized. The plunger is pressed on an eccentric circle of a bent axle, the two lantern rings sleeve the end part of the pin shaft of the plunger, and thus the pin shaft is connected with an outer ring of a bearing. According to the plunger returning device for the bent axle connecting rod type radial plunger pump, the advantages of small rotational inertia and a good transmission performance of the bent axle connecting rod type radial plunger pump are fully utilized, and the problems that a transmission spring returning device is complex in structure and a spring is proneto fatigue attenuation are further solved.

The invention discloses a high-power microwave polarization conversion super-lens antenna, and aims to solve the problems that an existing horn antenna does not have a polarization conversion functionand is not compact enough in the axial direction when matching a waveguide circular polarizer. The antenna is composed of a horn antenna and a polarization conversion super lens. The horn antenna iscomposed of a first flange plate, a conical horn and a second flange plate. The polarization conversion super-lens is formed by arranging and combining a plurality of polarization conversion super-lens units in a honeycomb shape, a through hole is drilled in the center of each polarization conversion super-lens unit, two arch-shaped columns are arranged in each through hole and connected with theinner wall of the through hole through supporting rods respectively, and two matching grooves are formed in the two ends of each polarization conversion super-lens unit respectively. The cross sectionof each polarization conversion super-lens unit is a regular hexagon, and the polarization conversion super-lens units are closely arranged into a circle. According to the invention, the thickness isabout one free space wavelength, the axial direction is more compact, the power capacity is higher, a linear polarization mode can be directly converted into a circular polarization mode, and the circular polarization microwave mode is radiated into the free space.

The invention relates to a plunger returning device for a bent axle connecting rod type radial plunger pump. The plunger returning device forms an integrated mechanism through a plunger, a pin shaft,a shaft pad and two lantern rings. Motion track of an eccentric cam is transmitted to the plunger when a transmission shaft with an eccentric cam rotates, and motion and an automatic returning function of the plunger are realized. The plunger is pressed on an eccentric circle of a bent axle, the two lantern rings sleeve the end part of the pin shaft of the plunger, and thus the pin shaft is connected with an outer ring of a bearing. According to the plunger returning device for the bent axle connecting rod type radial plunger pump, the advantages of small rotational inertia and a good transmission performance of the bent axle connecting rod type radial plunger pump are fully utilized, and the problems that a transmission spring returning device is complex in structure and a spring is proneto fatigue attenuation are further solved.