122results about How to "Simple and reliable assembly process" patented technology

The invention provides an electric pressure cooker adopting a side wall temperature measuring and pressure controlling mode. The electric pressure cooker comprises a main body for heating and an inner pot, wherein a heating element is arranged on the main body; a control panel for controlling the heating element to work is arranged on the wall of the heating element; the inner pot is placed on the heating element; a temperature measuring element is fixed on the side wall of the inner pot and is electrically connected with the control panel on the main body. According to the electric pressure cooker adopting the side wall temperature measuring and pressure controlling mode, provided by the invention, the assembly in production can be facilitated, and function failure and pressure potential safety hazards of the electric pressure cooker due to the wear to a lead caused by opening and closing of a cooker cover are avoided.

The invention discloses a lithium ion battery module with simple structure, high safety and good reliability, and a battery pack comprising the lithium ion battery module. The lithium ion battery module comprises monomer rechargeable lithium ion batteries (1) and a shell (2) made from a high-temperature resistant strong-toughness flame retardant material, wherein through holes (21) are formed between a front bottom surface and a back bottom surface of the shell (2) and are arranged in arrays, and each through hole is fixed provided with one of the monomer rechargeable lithium ion batteries (1). The lithium ion battery module and the battery pack can be widely applied to the field of power supplies.

A strain gauge integrated three-dimensional turning force sensor comprises a sensor main structure, wherein a turning tool is installed in a turning tool slot of the sensor main structure, a first vertical octagonal semi-ring and a second vertical octagonal semi-ring are arranged on an upper surface and a lower surface of a middle portion of the sensor main structure respectively, a front side and a rear side of the middle portion of the sensor major structure are connected with a first horizontal octagonal semi-ring and a second horizontal octagonal semi-ring respectively, a tail portion of the sensor major structure is provided with a sensor handle, a foil-type resistance strain gauge is respectively packaged on an inner surface and an outer surface of each octagonal semi-ring, by means of an elastomeric structure, dynamic characteristics of a measuring cell are improved, and accurate measurement of three-dimensional turning forces is achieved. The strain gauge integrated three-dimensional turning force sensor not only can measure dynamic forces, but also is applied to measuring static forces, assembling and maintaining of the strain gauge integrated three-dimensional turning force sensor are more simple and reliable, and costs are reduced.

The invention relates to a precision numerical control rotary workbench which comprises a workbench base, a workbench spindle and a spindle mandrel fixedly connected with the workbench spindle, wherein a support sleeve is fixedly connected on the workbench base, a rotary workbench bearing outer race and a hydraulic clamping cylinder are installed on the support sleeve, a torque motor stator is fixedly connected on the bottom of the support sleeve, the workbench spindle is installed on the inner race of the rotary workbench bearing, a torque motor rotor is connected below the spindle mandrel, a hydraulic clamping cylinder spring compaction sheet is installed below the workbench spindle, a hydraulic clamping cylinder piston is assembled in a groove of the hydraulic clamping cylinder, and the hydraulic clamping cylinder piston is in contact with the hydraulic clamping cylinder spring compaction sheet. The precision numerical control rotary workbench has the advantages of increasing the bench surface precision and the positioning precision of the workbench under the action of unbalance load impact force, the transmission torque is large, and the assembly is simple and reliable; and the precision numerical control rotary workbench has self-locking function, so that the torque motor can work discontinuously, and the electric energy is saved.

The invention discloses an air duct device comprising an air duct base provided with an air duct hole and formed with a plurality of block holes, and an air duct member; and the periphery of the air duct member is provided with a plurality of bidirectional clips respectively matched with the block holes to locate the air duct member on the air duct base in the transverse and longitudinal directions. According to the air duct device of the embodiment of the invention, the air duct member and the air duct base can be limited multi-directionally; meanwhile, the assembly is simple and firm, easy to disassemble, and not easy to fall off and break.

The invention relates to a device for assembling a casing ring in a watch case middle including bearing surfaces on the inner wall thereof, the casing ring including two housings opening in the lateral face of the casing ring, and in the upper or lower face of the casing ring.The device includes a locking part, capable of pivoting about a vertical axis of rotation passing through said upper or lower opening from a first position, in which the locking part is housed in the housing, to a second position, in which the locking part protrudes and abuts against a bearing surface of the inner wall of the case middle so as to hold said casing ring in said case middle.According to the invention, one locking part is snap-fitted in each of the housings and pivots about the vertical axis of rotation.The invention also concerns a watch fitted with such an assembly device.

The invention relates to a pneumatic rivet tool. The pneumatic rivet tool comprises a self-locking gun head, a mandrel-pushing assembly, an oil cylinder assembly, a switch trigger, a handle housing and a valve body assembly, wherein the mandrel-pushing assembly is arranged in the oil cylinder assembly, and the front end of the mandrel-pushing assembly is connected with the self-locking gun head through a three-jaw; the handle housing is fixed below the oil cylinder assembly; the valve body assembly, the switch trigger for controlling opening and closing of the valve body assembly, and a hydraulic oil cavity are arranged in the handle housing; an air cylinder body is arranged at the lower end of the handle housing, and a piston, and a ventilation guide tube connecting a communication hole in the side surface of the valve body assembly with the piston, are arranged in the air cylinder body; a piston rod connected with a hydraulic oil cavity is arranged on the piston; and an intake connector connected to the lower end of the valve body assembly is further arranged on the air cylinder body. The tool is simple in structure, capable of realizing single-hand random-direction riveting, reasonably using a space in the handle housing, and cyclically utilizing waste gas after riveting, green and environment-friendly, energy-saving, low in noise, less in pollution, and capable of increasing working efficiency.

The invention provides a split extruded and spliced water-cooled motor shell. One end of each splitting piece of the shell is provided with a connector, and the other end of the splitting piece is provided with a connecting trough. Water guide holes are reserved on the splitting piece. One side of the splitting piece is provided with bolt holes. The splitting pieces are spliced by the connectors and the connecting troughs to form the shell. A stator is in interference fit with the inner ring of the shell. The shell is connected with a front end cover and a rear end cover. The two ends of the water guide hole are provided with a gasket respectively. One end of the water guide hole is communicated with an end cover groove. The motor shell is equally divided into a plurality of splitting pieces, has a small volume and is convenient to transport and store. A plurality of water guide holes are extruded on the middle parts of the splitting pieces and may be provided with fins so as to be favorable for water cooling. The shell can be designed into a plurality of shapes such as a polygon, a round and the like according to needs.

The invention discloses a scraper chain assembling system and an assembling technique. The assembling system comprises a vehicle body platform. A pressing plate screw feeding system, a scraper feeding system, a nut feeding and screwing system and a winch traction system are arranged on the vehicle body platform. Working stations are arranged on the pressing plate screw feeding system, the scraper feeding system, the nut feeding and screwing system and the winch traction system respectively. The assembling technique comprises the following steps that a scraper chain is pulled in place, a pressing plate screw assembly is placed, scraper feeding is conducted, and nut feeding and screwing are conducted. The whole scraper chain assembling system is arranged on a movable platform, is convenient to move and high in adaptability to the environment, can be used for assembling chains in different types, and is simple in structure, low in cost and high in promotional value. Compared with existing techniques, the assembling technique is simple, reliable, high in operability and suitable for being applied and popularized within a wide underground range of a coal mine.

A power conversion apparatus is provided, which comprises a housing, a main board, a first electromagnetic filtering board, a second electromagnetic filtering board, a signal board, a capacitor board, and a heat-dissipation module. The housing includes a heat-dissipation wall and a coolant runner. The main board is disposed upon the housing and comprises a first surface facing the housing and a power device. The heat-dissipation module includes an thermal conductive insulating sheet adhered to the heat-dissipation wall and an elastic clamp. When the main board approaches the housing to clamp the power device in the accommodating space between the elastic clamp and the thermal conductive insulating sheet, the power device is pressed against by the elastic clamp and thus adhered to the thermal conductive insulating sheet, so that the power device is thermally coupled to the heat-dissipation wall and the coolant runner via the thermal conductive insulating sheet.

The invention relates to a ball screw releasing-engaging transmission and resetting device. The ball screw releasing-engaging transmission and resetting device comprises a releasing-engaging transmission device and a resetting device. The releasing-engaging transmission device comprises a nut sleeve, a lead screw, a holder and a steel ball. The holder is provided with a transmission gear used for transmission. A through hole is further machined in the holder. One end of the lead screw is provided with a step I, and the lead screw is arranged in the holder. The steel ball is arranged in the through hole formed in the holder, and the diameter of the steel ball is smaller than that of the through hole. A holder fixing seat is arranged on the holder. The end, close to the through hole, of the holder is further provided with the nut sleeve. The resetting device is arranged on the holder. The releasing-engaging transmission and resetting device is formed by the releasing-engaging transmission device and the resetting device. The releasing-engaging transmission and resetting device can convert rotation motion into linear motion and meanwhile can achieve the effect of a clutch and rapid resetting. In addition, the releasing-engaging transmission and resetting device is small in friction, high in transmission efficiency, low in noise, high in applicability and capable of greatly releasing workforce and improving production efficiency.

A centered torque transmission locking combined mechanism of a multi-stage high-speed turbine comprises a rotary shaft and a plurality of stages of impellers installed on the rotary shaft. The multiple stages of impellers are in transmission connection with the rotary shaft so as to drive the rotary shaft to rotate. The multiple stages of impellers are engaged through end teeth so that transmission connection can be achieved. Locking nuts are arranged at the two ends of the multiple stages of impellers so as to apply pretightening force to the multiple stages of impellers. The centered torque transmission locking combined mechanism has the advantages that the efficiency is high, transmission of axial force and torque is stable, the structure is compact, assembly is easy, and the working condition adaptability is high.

The invention relates to a movably detachable pan handle which comprises a handle and a pan handle connection base arranged on a pan body. An inner cavity with one end open is formed in one end of the handle, a wedge slide is arranged at the bottom of the inner cavity in a sliding mode, the upper end surface of the wedge slide is inserted into an slidable upper slide, a sliding button is arranged on the upper end surface of the handle, the lower end of the sliding button penetrates through a rectangular through hole to be connected with the upper slide, and one end of the wedge side is connected with the inner wall of the inner cavity through an elastic part I; a groove is formed in the upper end of the pan handle connection base and is inserted into the inner cavity of the handle, correspondingly, a convex block is arranged at the top of the open end of the inner cavity and is inserted into the groove, and the front end of the groove in the pan handle connection base is clamped between the convex block of the inner cavity of the handle and the upper slide. An interlocking mechanism arranged in the movably detachable pan handle is simple and reliable in structure, has a low accuracy requirement on interior parts, is simple to assemble, does not need screws for connection on the whole, is firm and not loosened after the pan handle is combined with the pan body, and is safer and more reliable.

The invention belongs to the technical field of transformers, and provides a transformer assembly tool. The tool comprises three parts, namely a transformer body placement frame, a base and a traction motor. Open-type mining transformers at two ends are assembled by the tool; forklift operation is not needed; a transformer body is easily pulled into an explosion-proof housing through a support guide rail on the transformer body placement frame under the stretching of a traction mechanism; the explosion-proof housing is visually transparent and free of a shield in the assembly process, so that the assembly condition of the transformer body and the explosion-proof housing can be conveniently observed; assembly interference and the problems of electrical distance deficiency and the like caused by a poor assembly sight line can be effectively avoided; operational experience with high demands is not needed; and the assembly process is simple and reliable. The track gauge and the horizontal height of a support track on the transformer body placement frame are adjustable; and the distance of a baffle plate on the base along the traction direction is adjustable, so that the universality is high.

The present invention provides a shoe used for being fixed to a shift fork (2), wherein, the shoe (3) comprises a balancing segment (6) which is used for balancing fabrication tolerances at the fixed state of the seat (3). Additionally, the invention also provides the shift fork (2) for containing the seat (3), wherein, the shift fork (2) is provided with at least one fixing segment (A) which has a cross section which is at least U-shaped partially. The fixing segment (A) can be fixed to the seat (3). Additionally, the invention also provides a shift fork system (1) which has the corresponding shift fork (2) and at least one corresponding seat (3).

The invention relates to a digital control gear milling machine of a spiral bevel gear. The digital control gear milling machine comprises a machine body, uprights, a cutter spindle housing, a workpiece spindle housing and a rotary working platform. The digital control gear milling machine is characterized in that the machine body is of an L-shaped structure with a slope on the surface, one side edge of the machine body, which is close to the outside, is provided with a chip groove, a hollow upper upright is arranged adjacent to the chip groove through a sliding plate, a wall-mounted sand wheel spindle housing is arranged on the outer wall of the upper upright, the upper upright is internally provided with a balance weight mechanism and is connected with the cutter spindle housing, a gear backlash eliminating mechanism is arranged on the workpiece spindle housing, and the rotary working platform adopts a rotary integer comprising a working platform spindle and the like and is of a fixed integral structure formed by a rotating platform bearing outer ring and a support sleeve. The digital control gear milling machine has the advantages that chips are smoothly discharged, deformation caused by overheating of the machine body is avoided, machining requirements of two gear mechanisms of a reducing gear and a constant-depth gear can be met, the rotary working platform is high in location precision and large in driving torque and has a self-locking function, the workpiece spindle box brings the convenience for regulation of a gap, and the problems of unstable gear transmission, overlarge gap, large noise and low efficiency are solved.

The invention relates to a starter embedded output shaft assembly. The starter embedded output shaft assembly comprises an output long shaft, an output short shaft and a thin safety shaft; the axis ofthe output long shaft and the axis of the output short shaft are provided with shaft holes in the axial direction, and the thin safety shaft is arranged in the shaft holes of the output long shaft and the output short shaft; the front end of the thin safety shaft is provided with a limiting pin hole, the front end of the shaft hole formed in the output long shaft is provided with a slide groove in the axial direction so that a first limiting pin can be inserted into the limiting pin hole formed in the front end of the thin safety shaft and arranged in the axial slide groove formed in the front end of the output long shaft when the thin safety shaft is inserted into the shaft holes, and the thin safety shaft is in limiting connection with the output long shaft through the first limiting pin in the circumferential direction; and the middle of the shaft hole of the output long shaft is provided with a thrust stepped hole, the front end of the thin safety shaft is sleeved with a spring inthe compressed state, the spring is arranged between the thrust stepped hole and the first limiting pin, and the inner side of the front end of the thin safety shaft is provided with a thin safety shaft cutting section.

The invention provides a rectangular open magnetic field type low-frequency vibration calibration table with double-magnetic-circuit two-end symmetric excitation, belonging to the field of vibration measurement technology. A rectangular open magnetic field type magnetic circuit structure is provided. Two permanent magnets are symmetrically installed at two ends of a center magnet yoke and face magnetic poles. Two symmetric closed magnetic circuits are formed by magnet yokes. The strong magnetic field distribution with high uniformity is generated in air gaps. After a working coil is energized, the working coil is affected by Lorentz force in a magnetic field, and precisely controllable electromagnetic drive force is generated. The surfaces of the magnet yokes adjacent to the air gaps are provided with an array type micro structure in the form of deep trenches, and the eddy current loss can be effectively inhibited. The organic integration design of air lubricated guide technology is employed, and outstanding electromagnetic drive mechanical performance and high movement guide precision are obtained at the same time. According to the rectangular open magnetic field type low-frequency vibration calibration table, large stroke, high thrust, a linear electromagnetic driving force characteristic and high movement guide precision can be considered, and the high performance low frequency vibration calibration table is provided for low-frequency / ultra-low frequency vibration calibration.

A satellite is configured for use in space so as to receive RF signals, convert them to a different frequency range, and retransmit the converted RF signals. The satellite comprises a payload area supporting a motherboard structure with a plurality of frequency converters supported on it. The frequency converters are each connected with an antenna system of the satellite so that each of them receives a respective RF input signal. A local oscillator source supported on said motherboard structure generates a local oscillator signal, and a motherboard in the motherboard structure receives the local oscillator signal and transmits it through the motherboard to each of the frequency converters. The frequency converters each convert the respective RF input signal to a respective RF output signal using the local oscillator signal and transmit the RF output signal to the antenna system so as to be transmitted wirelessly.

The invention relates to a seal system, in particular, for joint connections on hot gas flow paths, such as exhaust systems on internal combustion engines, comprising a seal support (3) and at least one seal element (1) defining a seal plane lying between sealing surfaces, characterised in that the seal support (3) is a separate component from the seal element (1) as a further separate component and that in order to obtain the seal system both components are non-detachably connected to each other.

The invention provides an electromagnetic interference-prevention power regulation circuit integrated module and an installation method thereof. The electromagnetic interference-prevention power regulation circuit integrated module comprises a copper-coated ceramic substrate and power regulation circuit components and also comprises a shell, wherein the power regulation circuit components are arranged on the copper-coated ceramic substrate, the copper-coated ceramic substrate and the power regulation circuit components are arranged in the shell, the copper-coated ceramic substrate comprises aceramic layer at a bottom layer and a copper-coated layer at an upper layer, the shell comprises a shell body, an upper cover plate and lead terminals, the shell body wraps bottom surfaces and peripheries of the copper-coated ceramic substrate and the power regulation circuit components, the upper cover plate covers the top of the shell body, and the lead terminals are used for connecting the interior and the exterior of the shell body. The electromagnetic interference-prevention power regulation circuit integrated module has the beneficial effects that a power regulation circuit with relatively serious electromagnetic interference is completely sealed in the shell, the distribution parameter of a power device interconnection loop is reduced, and the electromagnetic radiation of the powerregulation circuit is effectively shielded; and with the adoption of a material with favorable heat conductivity, the thermal resistance between a power semiconductor component and the whole structureis reduced.

The invention provides a high voltage distribution box for the inside of a battery pack of an electric vehicle. The high voltage distribution box is mounted at the inside of the battery pack of the electric vehicle and comprises a box body and a box cover, wherein the box body is provided with a battery pack total positive terminal, a battery pack total negative terminal, a battery pack output positive terminal, a battery pack output negative terminal, a direct-current fast-charge positive terminal, a direct-current fast-charge negative terminal, a signal control connector, a high-voltage low-current connector, a high and low voltage integrated circuit board, a control unit (comprising a total positive line control contactor, a total negative line control contactor, a direct-current fast-charge positive control contactor, a pre-charge contactor and a PTC (Positive Temperature Coefficient) positive control contactor), a protection unit (comprising a contactor closing state monitoring circuit and a fuse protector), a current sensing unit (comprising a high-precision current sensor IC (Integrated Circuit)) and an overheating alarm unit (comprising a thermistor and an operational IC).The high voltage distribution box provided by the invention is innovated in the aspects of circuit structure, manufacturability, shock resistance, current sensing precision, overheating protection andcontactor closing monitoring, and the space can be saved by 30%.

The invention provides a large-power light-emitting diode (LED) heat dissipation mechanism comprising an evaporator, two guide pipes, an air convection heat dissipation condenser and water, wherein the evaporator is connected with the condenser through the two guide pipes, and the bottom of the evaporator is an insulated and heat-conductive LED substrate. The heat dissipation mechanism provides a low-cost solution which is light in weight, simple and reliable in structure and high in heat-conductive and heat dissipation efficiency for large-power LED application, particularly integrated large-power LED application.

The invention discloses a commutation control method of an electric steering engine driving device. The method is used for two-two conduction commutation of a three-phase brushless direct current motor. The method comprises the following steps of using a three-phase Hall sensor installed on the brushless direct current motor to detect a rotor position signal of the three-phase brushless direct current motor; inputting a three-phase Hall simulation signal into a controller and converting into a Hall digital signal, then generating six kinds of codes and forming a six-step commutation sequence;and carrying out logic selection and determination in the controller, calculating and acquiring a three-phase UVW control signal code of a three-phase brushless direct current motor driver, through anIO port of the controller, simulating and outputting a control signal to the driver so as to carry out current commutation, and conducting two channels in three channels of UVW, wherein the two channels are power switches of an upper bridge arm and a lower bridge arm and are opened simultaneously, and other power switches are closed. The method possesses advantages that a control algorithm is simple; control driving integration is achieved; and a driving device is simple and so on. A rotor position and speed information can be accurately monitored.

The invention discloses a detection box comprising a detection box body and a box cover. The detection box body is a cuboid, protrusions are arranged in the detection box body, bosses directly facing the protrusions are arranged on the box cover, a snap is arranged on each boss, and a snap fixing groove is arranged in each protrusion; when the detection box is closed, each snap is embedded in the corresponding snap fixing groove, and the end face of each protrusion is attached to the end face of the corresponding boss; a plurality of circuit board brackets are arranged in the detection box body. The detection box has the advantages that the detection box is neat in appearance, convenient to mount, more compact in overall structure and simple and reliable in assembly and has good production manufacturability, screw-free design is adopted for product assembly, and the internal space of the detection box body is utilized effectively.

A power conversion apparatus is provided, which comprises a housing, a mother board, an electromagnetic filter board, a signal board, and a heat-dissipation module. The housing includes a first heat-dissipation wall and a coolant passage. The mother board is disposed upon the housing, and comprises a first surface facing the housing and a first power device. The heat-dissipation module includes a first insulated heat-conducting sheet adhered to the corresponding first heat-dissipation wall and a first elastic clamp. When the first surface of the mother board approaches the housing to clamp the first power device within the accommodating space, the first power device is pressed against by the first elastic clamp and thus adhered to the first insulated heat-conducting sheet, so that the first power device is thermally coupled to the first heat-dissipation wall and the coolant passage via the first insulated heat-conducting sheet.

The invention provides an encapsulation structure of a microwave isolator. The encapsulation structure comprises a shell and a bottom plate, wherein the shell is provided with a side wall and a bottom surface, a cylindrical cavity is formed by the shell, the side wall is provided with a flange extruding to the outside; the bottom plate has a plane structure, a uniformly magnetized conducting plate, a central conductor, a microwave ferrite, a temperature compensating gage and a permanent magnet are arranged on the bottom plate, the shell is turned upside down on the bottom plate, the uniformly magnetized conducting plate, central conductor, microwave ferrite, temperature compensating gage and permanent magnet are arranged in the cylindrical cavity of the shell, the central conductor penetrates through a notch on the side wall to be connected with a load on the bottom plate, and the shell is fixed with the bottom plate through screws. The invention does not use a cover plate, the cost of the microwave isolator is obviously reduced on the basis of not changing the performance of elements, the assembling and debugging are simple and easy to operate, the volume is small, the performance is good and the encapsulation structure is very practical.

The invention relates to a movable and detachable pot handle, which includes a handle and a pot handle connecting seat installed on the pot body. One end of the handle is arranged with an inner cavity with an open end, and a wedge-shaped slider is slidably installed on the bottom of the inner cavity. The wedge-shaped slider The upper end surface of the block is embedded with a sliding upper slider, and the upper end surface of the handle is arranged with a sliding button. The lower end of the sliding button is connected to the upper slider through a rectangular sliding through hole. The inner walls are connected; the upper end of the handle connection seat is arranged with a groove and inserted into the inner cavity of the handle, and the top of the opening end of the inner cavity of the corresponding handle is arranged with a raised block, and the raised block is embedded in the groove. The front end of the groove on the connecting seat is stuck between the raised block in the inner chamber of the handle and the upper sliding block. The structure of the internal interlocking mechanism of the present invention is simple and reliable, the precision of the internal parts is low, the assembly is simple, the whole does not need screw connection, and the pot handle and the pot body are firmly combined without loosening, which is safer and more reliable.

The invention provides a rectangular open magnetic field type electromagnetic vibration table magnetic circuit structure with double-magnetic-circuit two-end symmetric excitation, belonging to the field of vibration measurement technology. A rectangular open type magnetic field structure design is provided. Two permanent magnets are symmetrically installed at two ends of a center magnet yoke and face magnetic poles. Two symmetric closed magnetic circuits are formed by magnet yokes. The magnetic induction intensity distribution with high uniformity is generated in air gaps. After a working coil is energized, the working coil is affected by Lorentz force in a magnetic field, and precisely controllable electromagnetic drive force is generated. The surfaces of the magnet yokes adjacent to the air gaps are provided with an array type micro structure in the form of deep trenches, and the eddy current loss can be effectively inhibited. According to the rectangular open magnetic field type electromagnetic vibration table magnetic circuit structure, large stroke, high magnetic field uniformity, high thrust and a linear electromagnetic driving force characteristic can be considered, the disadvantages in the existing technical scheme can be effectively solved, and a high precision and large stroke electromagnetic vibration table magnetic circuit structure technical scheme is provided for low-frequency / ultra-low frequency vibration calibration.