426results about How to "Easy processing and installation" patented technology

The invention provides an integrated hub motor and a control method thereof. The integrated hub motor comprises a motor shaft and a stator fixed on the motor shaft, wherein the stator is externally sheathed with a rotor casing; the front end and the rear end of the rotor casing are rotatablely fixed on the motor shaft by a rotor end cover and a bearing; two ends of the motor shaft protrude outside the rotor end cover to form a long end and a short end; a bearing end cover is fixed at the outer side of the rotor end cover; and the short end of the motor shaft is covered therein. The invention is characterized in that a bearing end cover shaft is arranged in the middle part of the bearing end cover in a protruding mode towards the direction of the motor shaft, and a position detection device is arranged at the corresponding position of the end part of the motor shaft and the bearing end cover shaft; the motor shaft is sheathed with a servo controller; and the position detection device senses rotation of the bearing end cover shaft and transmits the sensed signal to the servo controller to finally obtain the rotating angle or position of the rotor after being processed by the servo controller, thus achieving accurate control of the motor. The invention has the advantages of simple structure, energy conservation, good starting characteristic, small volume and high efficiency.

A broadband dual-polarized antenna comprises a feeding panel, a dielectric panel, a radiant panel and a director, wherein the radiant panel comprises a +45-degree polarization oscillator and a -45-degree polarization oscillator which is orthogonal to the +45-degree polarization oscillator, and each polarization oscillator comprises two radiant sub-panels; the feeding panel comprises a first feeding sub-panel and a second feeding sub-panel, the dielectric panel is supported on a reflecting panel through coaxial feeders, the feeding panel and the radiant panel are printed on the upper layer and the lower layer of the dielectric panel, the feeding sub-panels of the feeding panel are connected with inner conductors of the coaxial feeders respectively, the first feeding sub-panel is aligned to one radiant sub-panel of the +45-degree polarization oscillator so as to conduct coupled feeding, the second feeding sub-panel is aligned to one radiant sub-panel of the -45-degree polarization oscillator so as to conduct coupled feeding, and outer conductors of the coaxial feeders are connected with the other two radiant sub-panels respectively so as to conduct feeding; the director is arranged above the feeding panel, the feeding panel is used for controlling a high-frequency resonance point, the radiant panel is used for controlling a low-frequency resonance point, and the director is used for controlling a high frequency radiation pattern. The broadband dual-polarized antenna improves broadband matching performance.

The invention provides a hard rock road-header damping design method based on a multi-tuning mass damper. The hard rock road-header damping design method comprises the steps of establishing a hard rock road-header whole-machine rigid-flexible coupling multi-body dynamics model; 2, calculating hob dynamic rock breaking force and shield-surrounding rock mutual acting force and simulating hard rock road-header vibration exciting force; 3, analyzing and evaluating hard rock road-header driving performance and the whole-machine vibration level; 4, installing the multi-tuning mass damper on a hard rock road-header gearbox; 5, determining the quantity, distribution mode, mass, rigidity and damping of damper bodies in the multi-tuning mass damper by minimizing a minimal whole-machine vibration level index value or a maximal whole-machine vibration level index value of a minimal driving performance index. By arranging the multi-tuning mass damper on the hard rock driving gearbox and optimizing parameters of the multi-tuning mass damper, on the basis of improving or maintaining the hard rock road-header driving performance, the whole-machine vibration can be effectively lowered, and the damage to key parts caused by strong vibration can be avoided or lowered.

A multi-fingered dexterous hand based on FPA drive comprises five fingers and a palm, wherein the palm comprises a thumb palm block, an index finger palm block, a middle finger palm block, a ring finger palm block and a little finger palm block; the thumb palm block comprises a tray, a thumb mounting seat and a rotating shaft part capable of rotating around the index finger palm block, the tray is a cube which is used for holding an object so that the fingers can grab the object conveniently, the thumb mounting seat is used for fixing a thumb, and the rotating shaft part is rotationally mounted on the index finger palm block; each of the other palm blocks comprises a palm body, mounting seats arranged on two sides and matched with adjacent fingers, a rotating shaft pin and a finger mounting seat; the fingers are mounted on the finger mounting seats; the left side surface and the right side surface of each palm body are inclined; the mounting seats are positioning baffles or bosses; an assembling space for allowing a boss to be inserted in is reserved between every two positioning baffles; each rotating shaft pin is rotationally mounted between two positioning baffles; and the bosses are fixed on the rotating shaft pins. The multi-fingered dexterous hand based on FPA drive is simplified in structure and has excellent flexibility and good applicability.

A heat pump (refrigerating) system with ejecting device and liquor storing cooling device. It includes a main circuit consists of a compressor, a chiller, and liquor storing cooling device, ejector, flow restricting device and evaporator. The whole system is made up of the sealed main circuit and the aiding circuit. Between the sub-exit of the liquor storing cooling device and the sub air inlet port of the compressor in the main circuit an ejector is installed with the inducting ejecting port connected to the exit of the air liquor separator or evaporator,. The aiding circuit is made up of the ejector, compressor, chiller, and the liquor storing and cooling device. The high pressure steam of refrigerating medium is used as the working liquor of the ejector inducting the low pressure steam of refrigerating medium at the exit of the gas liquor separator and the evaporator. The ejector and the flow restricting device together enhance the utilization efficiency of the heat pump system. The liquor storing cooling device functions both as the liquor store and the cooling device.

An air current pipe system includes a machine case and a system fan inside the air hole located on the rear backboard of the machine case. The characteristics of the invention are that there a guiding wind flute possessing the air inlet and at least one air outlet. The air inlet covers the system fan. The air outlet is installed above the CPU inside the machine case. The invention guarantees thatCPU with super-high primary frequency as well as the heating elements on the host board and the hard disks and the plug-in cards can operate under the safe temperature range.

A device for welding slim tubes with six degree of freedom constrained after being centered and butted belongs to the field of welding fixtures, and comprises an axial centering mechanism I, an axial centering mechanism II, an axial butting mechanism and a machine frame; the butting and the contact of to-be-welded slim tube workpieces are completed through the axial butting mechanism after the to-be-welded slim tube workpieces are centered and positioned through the axial centering mechanism I and the axial centering mechanism II, so that the preparation operation before welding is completed. Through the invention, the welding quality of the to-be-welded slim tube workpieces can be better improved, the welding deflection is reduced, the welding seams are more attractive, meanwhile, the to-be-welded slim tube workpieces are convenient to assemble and disassemble, the operation is simple and the welding efficiency is improved.

The invention relates to the technical field of modern agricultural equipment, and in particular relates to a hoe entering depth and entering angle continuous adjusting mechanism. The hoe entering depth and entering angle continuous adjusting mechanism comprises a stander (5) which is fixedly connected with a carrier (6), a connecting plate (1) which is fixedly connected with a cutter, an entering angle adjusting mechanism and an entering depth adjusting mechanism. The hoe entering depth and entering angle continuous adjusting mechanism is simple in structure, effective, convenient to machine and install and strong in practicability. The entering angle of the cutter is adjusted by adopting a four-bar mechanism with an adjustable side link; the entering depth of the cutter is adjusted by adopting a five-bar mechanism with two degrees of adjustable freedom of a side link and no dead point (as shown in figure 4), or the entering depth of the cutter is adjusted by adopting a four-bar mechanism with one degree of adjustable freedom of a side link and no dead point through the deformation (as shown in figure 5); and moreover, the cutter is enabled to have a function to float upwards after being stressed, so that a buffering effect can be realized, the cutter and a cutter connecting piece can be protected, and the service lives of the cutter and the cutter connecting piece can be prolonged.

The invention discloses a flat-flamed burner. The flat-flamed burner comprises such modules as a stove plate (1), a pre-mixing air chamber (2), a protective air chamber (3), an experimental chamber (4), an air exhaust cap (5), a pressure regulator (6), observation window glass (9), a glass sealing cover (10), and the like. The flat-flamed burner is a modularization flat-flamed burner which is compact in structure, convenient in operation, high in safety and reliability, convenient to maintain after the improvement, capable of reducing photometric errors, self-adjustable in pressure and more stable in the generated flat flame. Different modules are designed, and then assembled to a burner of different functions, so that the modularization design method can constantly expand the application range of the flat-flamed burner.

The invention discloses an indoor available comprehensive tubing string mechanics experiment platform to solve the problem of unable accurate synchronous application of pulling, pressing, bending, twisting and other loads of present indoor experiment devices. The platform integrates loading and test mechanisms of pulling, pressing, bending, twisting and other different loads, and eliminates mutual influences of pulling and twisting combination load in a bearing isolation manner, and a test terminal collects and processes a pulling and twisting load signal in a double-sensor merging output mode. The platform can realize synchronous loading and testing of pulling, bending, twisting and other loads, and allows the real deformation of an oilfield tubing string under a given load condition to be obtained through scaling all parts of the oilfield tubing string in the practical use process.

The invention relates to a wheel hub motor and a control method thereof. The wheel hub motor comprises a motor shaft (1) and a stator (2), wherein a rotor shell (3) is sleeved outside the stator (2), and the front end and the back end of the stator (2) are rotatablely fixed on the motor shaft (1) through a rotor end cover (4) and a bearing (5); the outer side of the rotor end cover (4) is connected with a hub brake component (9); the rotor shell (3) is connected with a wheel hub (6); a position detection device is arranged at a position corresponding to the wheel hub motor, and comprises a retainer (7) which is fixed on the motor shaft (1) and a magnetic steel ring (11) which is fixed on the rotor end cover (4); a plurality of Hall elements (10) are arranged on the retainer (7); a servo controller (18) is arranged on the motor shaft (1); and the rotor end cover 94) and the motor shaft (1) rotate relatively. The wheel hub motor is simple in structure, energy-saving, high in starting characteristic, small in size, and high in efficiency.

The invention discloses a flow equalization structure for an air inlet of a heat exchanger plate beam. The flow equalization structure comprises a shell composed of a cylinder, a round top and square bottom and a square box, and an open-type enlarging pipe is mounted in the shell. The open-type enlarging pipe is composed of a flow leading section and a flow guide section, so that air can be evenly distributed on the square section of the downstream after flowing through the cylinder; the upper end of the flow leading section is fixed on the inner wall of the cylinder and is capable of effectively dividing the air into a plurality of parts according to the design requirements and leading the air to a round top and square bottom circulation starting zone, and flow guide plates on the flow guide section evenly guide the air to different zones of the square box; a connecting mechanism is capable of adjusting the included angle between the flow leading section and the flow guide section as required. Technical problems that the air is unevenly distributed when flowing through the round top and square bottom structure and pressure loss is bigger and the like are solved, and the flow equalization structure has the advantages of saved materials, simple structure, convenience in processing and mounting and the like.

The invention discloses a flexible die releasing method of a closed die forging large irregular profile structure forge piece. The flexible die releasing method comprises the steps that an upper forging die is taken out firstly and then force is applied to pushing rods to push up the large irregular profile structure forge piece in a lower forging die; flexible sections of each pushing rod are compressed to the elastic limit, and the compression amount is equal; when push-out force of a certain pushing rod is larger than frictional resistance of the position, located on the pushing rod, of the forging piece and a die mold cavity, the position of the forging piece loosens firstly and produces certain displacement, the pushing rod is not separated from the forging piece, the situation same with the just pushing rod occurs gradually on the other one pushing rod or the other multiple pushing rods, and the process occurs randomly and is conducted continuously; and when the total push-out force of all the pushing rods is larger than the total frictional resistance of the forging piece, the forging piece loosens overall, bears relatively-even force and is steadily pushed out of the die mold cavity. According to the flexible die releasing method, the die releasing process of the forging piece becomes steadier and is not liable to damage, and the flexible die releasing method is mainly used for die releasing after forging of forging pieces such as large aircraft structural pieces.

The invention discloses an inner flame energy-concentrating riser pipe type gas burner, which comprises a big fire burner, a small fire burner, a mixing tube of the big fire burner, a positioning tube of the small fire burner, and a water collector. An inner ring of an annular shell of the big fire burner is an inverted frustum which forms an angle between 20 and 80 DEG with a horizontal plane, and 1 to 5 fire exhaust holes are formed on the inner ring. One end of the mixing tube of the big fire burner is connected with the annular shell and communicated with an inner cavity of the annular shell, while the other end is communicated with a big fire nozzle which is arranged on the lower part of the water collector. The small fire burner comprises a frustum cap shell and an inner cavity of the frustum cap shell, wherein 1 to 5 fire exhaust holes are formed on external side face of the frustum cap shell, and the inner cavity of the frustum cap shell is communicated with a small fire nozzle which is positioned on the lower part of the water collector by a mixing tube of the small fire burner. The inner flame energy-concentrating riser pipe type gas burner has the advantages of reasonable structure, high thermal efficiency, material conservation, convenient processing, excellent energy-saving effect, less exhaust emission and the like.

The invention discloses a vibration absorber for a cycloid type wind driven generator tower. The vibration absorber comprises a mass block and a steel wire rope, wherein a rubber rod is connected on the mass block; a connector is sleeved on the steel wire rope; one end of the steel wire rope is connected with a steel wire rope expansion head, and the other end of the steel wire rope is provided with a connecting installation hole; and the connector and the mass block are in a threaded connection. The damper absorbs the structure vibration energy by the swinging of the mass block, and simultaneously dissipates the energy through the axial deformation of a connected rubber spring. The movement direction of a mass cycloid is reverse to that of the structure for the action of dynamically damping; one end of the rubber spring is fixed on the mass block, and the deformation is controlled by the mass block to provide a force which is always reverse to the movement direction of the mass block, and the axial deformation of the rubber spring will have the function of consuming energy. The vibration absorber is simple to design and manufacture, convenient to install and change, has stable hysteretic characteristic, relatively low manufacture cost, and is applied to the structure for remarkably absorbing vibration.

The invention discloses a testing device for the burning speed of a propellant under the tensile state, which is used for measuring the burning rule of the propellant under the tensile state. A constant-temperature and constant-pressure box is fixed on a working rack; the part between the inner wall and the outer wall of the constant-temperature and constant-pressure box is filled with an insulating layer; symmetrical insulating water pipes are arranged on the inner side of the insulating layer; a propellant tensile device is fixed in the constant-temperature and constant-pressure box; and a nitrogen gas cylinder is positioned at one side of the working rack and is communicated with the constant-temperature and constant-pressure box by a pipeline. The temperature in the constant-temperature and constant-pressure box is controlled by heating or cooling so as to realize testing for the burning speed of the propellant under the tensile state at different temperatures; high-pressure inert gas of the nitrogen gas cylinder is inputted into the constant-temperature and constant-pressure box to adjust the pressure in the constant-temperature and constant-pressure box, so that the pressure is maintained at given pressure, and the burning speed of the propellant under the tensile state at different pressures can be tested; the tensile amount of a tensile screw rod is controlled to control the tensile amount of the propellant, so that the burning speed of the propellant under the different tensile states can be tested. The testing device disclosed by the invention is simple in structure, low in cost and convenient to install.

The invention discloses an automatically telescopic robot leg. The robot leg consists of a motion unit, an upper/low fixing seat, an upper/low electromagnet, a sleeve, a U-shaped block, a spring plate and a spring, wherein the upper electromagnet and the lower electromagnet have fixed and opposite polarities; the polarity of the moving electromagnet is variable; and when the robot leg moves, the moving electromagnet and the upper/low electromagnet form variable attraction (repulsion) or repulsion (attraction), so that the motion unit is driven to move up and down, and the telescopic function of the robot leg is realized. Compared with the prior art, the automatically telescopic robot leg has the advantages that automatic telescopic function of the robot leg can be realized, and the robot leg is convenient to control and high in motion precision; and the robot leg is high in response speed, safe, reliable, simple and compact in structure, convenient to process and mount and particularly suitable for a robot without the knee joint.

The invention discloses a plug-in type multi-vehicle type transforming tray for automobile assembly and installation in an automobile factory. The tray comprises a base, wherein a supporting plate isfixedly arranged on one side of the base, placing grooves are formed in the middle of the supporting plate and the middle of the base, an operating table is arranged above the placing grooves, rollingdevices are arranged on the two sides of the operating table, one side of the operating table is connected with first rotating devices, the first rotating devices are arranged in the placing grooves,a first hydraulic cylinder and a second hydraulic cylinder are arranged at the two sides of the operating table and located on the supporting plate, hydraulic telescopic rods are arranged at the output ends of the first hydraulic cylinder and the second hydraulic cylinder, fixing columns are fixedly arranged at the other ends of the hydraulic telescopic rods, adjusting devices are arranged between the fixing columns, and strip-shaped plates are arranged on one sides of the fixing columns. The tray has the beneficial effects that the structure is simple, the operation and use are convenient, the adjustment for different planes and angles can be realized, the labor intensity of an operator is reduced, and the working efficiency is greatly improved.

A high-effect energy recycler in airflow non-contact type comprises thermal siphon (1), fins (2), baffle plate (3), outer frame (4), base (5), top rod (6) and driver (7). The thermal siphon has working substance with low boiling point; several thermal siphons are sheathed with several fins to form heat exchange corn separated into two parts via baffle plate and connected to outer frame to form heat exchanger. Cold and hot airflows individually passes two parts of heat exchange corn, via the heat transmission of thermal siphons and fins to exchange heat. The base supports heat exchanger, the top rod is connected to the driver to change the working state of heat exchanger, to adjust capacity and change working state. The invention can avoid pollution of working airflow, with high efficiency and automatic state adjustment, low start temperature difference, low cost and high reliability.