52results about How to "Achieved weight" patented technology

A structural mat matrix comprises (a) a substrate which consists essentially of from 80% to 99% by weight fiberglass fibers and from 20% to 1% by weight wood pulp and (b) a binder which consists essentially of from 80% to 95% by weight urea formaldehyde and from 20% to 5% by weight acrylic copolymer. The binder bonds the substrate fiberglass fibers and wood pulp together and comprises from 5% to 15% by weight of said matrix, preferably 10% by weight of the matrix.

The invention relates to an excavator bucket material volume and weight measuring system, which belongs to the technical field of hydraulic excavator bucket weighing, and comprises a laser radar, a calculating device, a preprocessing device and an operation display device. According to the invention, a laser radar device is used for realizing dynamic volume and weight measurement of materials in the bucket in the operation process of the excavator; effective three-dimensional modeling can be carried out on the empty bucket, point cloud registration fusion is carried out on the bucket filled with materials in the later excavation operation process, the limitation that point cloud data acquisition is blocked by objects and thus point cloud acquisition is incomplete is solved, the measurementprecision is improved, and the complexity of the measurement device is reduced.

The invention discloses a railway vehicle weight gravity center design optimization method based on multi-objective optimization. The method comprises the steps that a weight gravity center parameter table and an axle weight and wheel weight computation sheet are established, an optimization task model is established in optimization software on the basis, the vehicle body weight and vehicle body gravity center coordinates are used as optimization variables, the weights and gravity center coordinates of constituent parts are used as design variables, and axle weight deviations and wheel weight deviations are used as bound variables; a preset algorithm is applied to determine value ranges of the design variables and the bound variables and optimization indexes of the optimization variables; multi-objective optimization calculation is conducted on the optimization task model through a multi-objective optimization algorithm, and the weights and gravity center coordinates of the constituent parts after optimization are obtained. Weight and distribution optimization of the parts on a railway vehicle can be achieved, the lightweight design purpose is achieved, and meanwhile the utilization rate of space in a vehicle body is improved. the invention further discloses a railway vehicle weight gravity center design optimization system based on multi-objective optimization. The advantages of the method and the system are as mentioned above.

The invention provides an electromechanical servo comprehensive control and energy source management device, which is used for servo motor control and energy source management, and comprises a microprocessing circuit, detecting circuits, a signal conversion circuit, an isolation driving amplifying circuit and an energy source management circuit, wherein the detecting circuits comprise a first voltage detecting circuit, a first current detecting circuit, a second voltage detecting circuit and a second current detecting circuit. The electromechanical servo comprehensive control and energy source management device provided by the invention has the advantages that the comprehensive management of absorption and release of energy sources can be realized, in addition, the system composition is simplified, the system weight is reduced, and meanwhile, the self test of an electromechanical servo system can be realized.

Provided is a sash sealing system for installation around the side edges of a sash closure member such as a door or window. The system includes: a seal carrier; a sash profile having a channel adapted to receive and retain the seal carrier in a fixed position; and sash hardware having a channel adapted to align with the sash profile channel when the sash profile and sash hardware are fitted to a sash edge. The sash hardware channel has a depth sufficient to permit adjustment of the hardware into or off the sash edge without deflecting the seal carrier.

The invention relates to a method for constructing a driver's cab (1) of a commercial vehicle. The method comprises the steps of: providing individual walls (2-7) of the cab (1) comprising a front wall (2), side walls (3, 4), a rear wall (5 ), a bottom (6) and a roof (7); painting the provided individual walls (2-7); equipping at least one single painted wall (2 to 7) with an equipment element; and joining the single painted walls (2 to 7) to the commercial vehicle cab (1).

The invention provides a conveying device for sectional bars. The conveying device comprises a longitudinal sectional bar feeding mechanism, a transverse sectional bar feeding mechanism, a sectional bar sorting mechanism and a control mechanism. The longitudinal sectional bar feeding mechanism is used for measuring the length and the width of the sectional bars and conveying the sectional bars to a transverse conveying station. The transverse sectional bar feeding mechanism is used for measuring the weight of the sectional bars on the transverse conveying station and conveying the sectional bars to a sorting station. The sectional bar sorting mechanism is used for arranging the sectional bars on the sorting station, and therefore the arranged sectional bars can fall into a sectional bar storage frame. The conveying device for the sectional bars is simple in structure, low in cost and high in practicability. The conveying device for the sectional bars conveys the sectional bars and meanwhile can measure the size and the weight of the sectional bars, and a sorting function is achieved. The conveying device for the sectional bars effectively solves the problems that in the current sectional bar machining machine industry, the automation degree is not high, measuring is prone to being disturbed, cost is high, and the production efficiency is low, and therefore the machining efficiency and the machining precision and quality of the sectional bars are improved.

The invention discloses a joint movement assist device independently assisting a joint, comprising at least one auxiliary structure set.Each auxiliary structure set comprises: at least one freely telescopic airbag; at least two transfer fasteners fastening part of the airbags at two ends and fixing the fastened part of the airbags; at least one corrugated part located between two transfer fasteners on the airbags and not fastened in the part of airbags fastened by the transfer fasteners, wherein the corrugated part telescopes and produces force assisting in joint movement at the premise that the corrugated part is arranged around a joint axis in a direction approximately perpendicular to the joint axis; a distributing tube, one end of which is detachably connected with the airbag and the other end of which is connected with an adjusting portion to adjust air pressure in the airbags; a first wearable portion.In this manner, the joint of a user can be assisted independently, and secondary injury caused by assisting in unmovable joints of the user is avoided.

The invention belongs to the technical field of power electronics, and particularly relates to an on-line adjustable filament voltage source circuit for a magnetic deflection mass spectrometer. A controlled linear regulator circuit, a current feedback remote metering circuit and a working mode that filament power supply voltage slowly raises to the required working voltage from extremely low working voltage along the action of a control signal are adopted, a method for supplying power by a voltage source replaces a method for supplying power by a constant current source needed because the cold resistance of a filament is far smaller than the hot resistance, and the on-line adjustable filament voltage source circuit has the capacity of adjusting the electron emissivity of the filament online; a power supply circuit of the filament is isolated from other circuits, so that the filament voltage source can be applied to high voltage environment. The on-line adjustable filament voltage source circuit ensures that a filament supply is adjustable online, high in reliability, miniaturized and light.

The invention discloses an HFDL signal receiving and processing device. The device comprises a radio frequency receiving unit, a frequency conversion processing unit and a signal processing unit. Theradio frequency receiving unit is used for receiving short wave radio frequency signals of 1.5 MHz to 30 MHz, filtering the received radio frequency signals to remove interference signals outside theworking frequency band, carrying out adaptive gain adjustment, and sending the gain-adjusted radio frequency signal to the frequency conversion processing unit. The frequency conversion processing unit is used for upconverting the radio frequency signal to an intermediate frequency signal of 70 MHz, and sending the intermediate frequency signal to the signal processing unit. The signal processingunit is used for sampling the intermediate frequency signal to acquire a digital signal, digitally downconverting, detecting, demodulating and Turbo-equalizing the digital signal, encapsulating the processed data, and sending the data to a host computer through a network interface. According to the invention, HFDL signals are received and processed; the HFDL signal receiving and processing devicehas the advantages of simple structure, small size, low cost, portability, convenient deployment, unlimited deployment number, long interception distance and large dynamic range; and intercepted signals have the advantages of comprehensive type and excellent performance.

The invention discloses a satellite-borne dual-band four-channel rotary joint which comprises a first single-waveguide rotor, a first dual-waveguide stator, a dual-waveguide rotor, a second dual-waveguide stator and a second single-waveguide rotor. The first single-waveguide rotor, the double-waveguide rotor and the second single-waveguide rotor are rotors, and the first double-waveguide stator and the second double-waveguide stator are stators; the first double-waveguide stator is arranged between the first single-waveguide rotor and the double-waveguide rotor and is supported and connected through a bearing, the second double-waveguide stator is arranged between the second single-waveguide rotor and the double-waveguide rotor and is supported and connected through a bearing, and the rotors and the stators can rotate relatively. The dual-band four-channel rotary joint is a Ka-high-band four-channel rotary joint and a K-high-band four-channel rotary joint and has the advantages of being high in working frequency and large in number of channels, the channels are independent of one another due to the concentric stacking structure, and the requirement for high isolation between the channels is met.

A placement head (4) comprises a holding device (10) for holding components (11) and is received on a housing (9) so as to be displaced in a direction of displacement between a rest position and a working position, the rest position and the working position being interspaced by a travel path (Delta z) in the direction of displacement.; The placement head also comprises a readjusting mechanism (12) with a permanent magnet (14) which is magnetized at a right angle to the direction of displacement, a magnetic return path element (15) which interacts with the permanent magnet (14) in such a manner as to generate magnetic flux, the permanent magnet (14) being displaceable by the travel path (Delta z) in the direction of displacement relative to the magnetic return path element (15), and the magnetic return path element (15) comprising at least two sections (A, B) of different magnetic resistance in the direction of displacement and being configured in such a manner that the permanent magnet (14) overlaps at least two sections (A, B) at a time of the magnetic return path element (15) when it is displaced across the travel path (Delta z).; The readjusting mechanism (12) is coupled to the housing (9) and the holding device (10) in such a manner that the readjusting mechanism (12) exerts a readjusting force (F) on the holding device (10) across the travel path (Delta z), said readjusting force forcing the holding device (10) into the rest position.

The invention discloses a rewinding device for an aerogel composite coiled material and an operation method, and relates to the technical field of aerogel composite coiled material production. The rewinding device comprises an unwinding mechanism, a conveying mechanism, a dust collection mechanism, a winding mechanism and a transferring mechanism, wherein the unwinding mechanism comprises an unwinding support, a first roll shaft is fixedly installed on the upper side of the unwinding support, the conveying mechanism comprises a conveying support, a plurality of second roller shafts are fixedly installed on the upper side of the conveying support, a plurality of transmission assemblies are further fixedly installed on the upper side of the conveying support, the winding mechanism comprises a winding support and a winding roller shaft, one end of the winding roller shaft is fixedly installed on one side face of the winding support, and a pressing assembly and a discharging assembly are fixedly installed on the winding support. By arranging the conveying mechanism and the winding mechanism, the operation that an aerogel composite coiled material needs to be manually spread for heat dissipation and then manually wound in an existing production process is avoided, time and labor are saved, comprehensive inspection of a product is facilitated, and the production efficiency and the product quality are improved.

Provided is a motor vehicle lighting device (10) with a light module (16) which is used to produce a band-shaped light-emitting surface and has an elongated photoconductor (22) displayed as longitudinal. The photoconductor is provided with a plurality of discrete elements (24) arranged in rows along the longitudinal direction (x) of the photoconductor (22). The motor vehicle lighting device (10) is characterized in that the light module (16) is provided with trough-shaped reflectors (20, 38) which extend in the longitudinal direction (x) of the photoconductor (22) and are illuminated by the discrete elements (24) in rows, wherein most illuminated points of the reflectors (20, 38) by the extraction elements (24) are illuminated by more than one discrete elements (24).

The invention relates to a compensator (1) used for compensating two pipeline elements, in particular for motor vehicle applications. The compensator (1) comprises a multi-layer corrugated pipe (4), which is used as a wall, and comprises at least two stacked layers (5a,5b). A gap (Z) is correspondingly formed between the layers. In order to prevent forming of cracks, friction reduction agent (6) exists in the at least one gap (Z).

The invention relates to an electronic scale for weighing an experimental animal and a screening control method thereof, belongs to the technical field of electronic scales, and is intended to solve the technical problem that an existing electronic scale has single functionality. The electronic scale according to the technical scheme comprises an input unit, a weighing unit, a control unit, a display unit, an alarm unit and a power supply unit, wherein the signal output end of the input unit and the signal output end of the weighing unit are electrically connected to the signal input end of the control unit respectively; the signal output end of the control unit is electrically connected to the signal input end of the alarm unit and the signal input end of the display unit; the power supply unit is electrically connected to various electrical units; the screening control method of the electronic scale comprises the steps of 1) setting parameters by the input unit, and transmitting to the control unit; 2) weighing an experimental animal by the weighing unit, and transmitting to the control unit; 3) acquiring, by the control unit, weight acquired by the weighing unit, and comparing the weight, and issuing a corresponding command.

The invention discloses a drainer overturning control system based on gravity detection, which comprises a power module, a gravity detection module, a conversion module, a control module and a motor module, wherein the gravity detection module is used for detecting the weight of water in a basin to form an analog signal which is input to the conversion module; the conversion module is used for converting the input analog signal into a digital signal; the control module comprises a computing unit, a comparing unit and an executing unit; the computing unit is used for receiving the digital signal to compute a detected weight value; the comparing unit is used for presetting the weight value of water in the basin and conducting comparison; when the detected weight value is greater than or equal to the preset weight value, the executing unit generates and outputs a driving signal; the rotating shaft of the motor module is fixedly connected with a drainer through a connecting piece; and the rotating shaft drives the drainer to overturn, and forms a sewer between the drainer and a drain outlet or completely close the drainer. The drainer overturning control system based on gravity detection has the functions of automatic detection and automatic control, and can be conveniently used in the draining process of the basin.

The invention provides a pressure swing adsorption nitrogen making device capable of replacing membrane separation nitrogen making and relates to the field of air separation nitrogen making. The device is composed of adsorption tower sets, gas inlet and outlet pipelines and valves, an electronic control pneumatic system and the like. The adsorption tower sets can be composed of two or three or four and even more towers. Conventional adsorption towers are made into unpressurized vessel type adsorption towers easy to replace, and the adsorption towers are assembled through high-pressure carbon molecular sieves, threads and hoses and assembled by referring to a membrane barrel combination mode. The adsorption towers can be filled with the molecular sieves with different pressure bearing capacities according to the requirements of users, one device can be composed of the multiple adsorption tower sets, each adsorption tower is provided with independent gas inlet, outlet and exhaust valves and pipelines connected with main gas inlet, outlet and exhaust pipelines, replacement and maintenance of each adsorption tower can be achieved, modular assembly is achieved, and maintenance and replacement are convenient for the users. The adsorption towers are low in weight and convenient to replace, the device is assembled in a modular mode, the gas outlet pressure of nitrogen reaches up to 1.5 MPa, the device can completely replace membrane separation nitrogen making, and the requirements of the users are met.

The invention discloses a joint follow-up assisting device which comprises at least one sensor, a data processor and a control portion. The sensors are worn at joints of a first user and record joint movement data, the data processor is connected with the sensors and receives and processes the joint movement data, the control portion is connected with the data processor, receives the joint movement data and controls a joint movement assisting device, and the joint movement assisting device is worn at a joint of a second user and controlled by the control portion to assist joint movement of the second user. In this way, the first user can perform movement assisting on corresponding joints of the second user through the joint follow-up assisting device, and convenience in use is realized.

The invention discloses a flood prevention device, and relates to the technical field of flood prevention devices. The flood prevention device comprises a plurality of box body units which are transversely and longitudinally arranged, each box body unit is of a hollow structure, a water inlet is formed in the upper end of each box body unit, a flow guide pipe is arranged at the lower end of each box body unit, and flow guide pipes communicate with the interiors of the box body units; a limiting groove is formed in the outer wall of one side of each box body unit, a limiting protrusion matched with the limiting groove is arranged on the other side of each box body unit, an overflowing opening is formed in the side wall of each box body unit, a baffle capable of moving in a lifting mode is arranged in each box body unit, and each baffle can block the corresponding overflowing opening. According to the flood prevention device, the flood prevention device is composed of the multiple box body units, the weight of each box body unit is lighter than that of a sandbag, and carrying is convenient; the integrality formed by splicing is high, and water retaining and flood prevention can be effectively achieved.