31results about How to "Normal operation effect" patented technology

The invention provides a heating and radiating integrated device for a wind driven generator gear box. The heating and radiating integrated device comprises a temperature collection module for collecting a temperature of the gear box, wherein the temperature collection module is connected with a control module; the control module is connected with a motor drive module and a heating and radiating module separately; the motor drive module is connected with the heating and radiating module; the heating and radiating module comprises a heating and radiating fin; a heating resistance wire is arranged in the heating and radiating fin; the heating and radiating fin is connected with a rotating shaft; and the rotating shaft is connected with the motor drive module. The motor drive module drives the rotating shaft to rotate and drives the heating and cooling fin to be clung to the gear box; and the heating resistance wire is opened or closed to heat or stop heating the gear box. The rotating shaft reversely rotates and drives the heating and cooling fin to rotate to be vertical with the wind driven generator gear box, so that radiating of the gear box is achieved. The quality of lubricating oil is not affected by indirect heating. The heating and radiating integrated device is simple in structure and convenient to maintain and repair, and integrates heating and radiating, so that the cost and the occupied space are reduced.

The invention relates to a construction method of a net rack, in particular to a starting construction method for a large-span gable wall of a cylindrical latticed shell structure for a coal storage yard. The gable wall is manufactured by small spliced unit grounds, and is overhung to expand splicing, so that the construction speed is high. The coal delivery work of the coal storage yard is not affected, so that a purpose of construction while working is achieved. The large-span cylindrical latticed shell structure is constructed in a special working condition environment of the coal storage yard by adopting a method of using the small spliced units, starting the gable wall, decreasing progressively layer by layer, constructing row by row upward and overhanging to expand splicing. By combining gable wall starting by way of splicing, the method divides construction sections reasonably. Started from two ends of the gable wall, the gable wall is mounted upward lattice by lattice, cylindrical shell net racks on two sides are mounted at the same time, the cylindrical shell net racks on the two sides in starting are decreased progressively row by row along the mounting height, supportingpoints are arranged in a spaced manner in a starting internal chord of the gable wall, and hawsers are pulled in different heights on two sides, so that the integral stability is ensured. The gable wall is manufactured by small spliced unit grounds, and is overhung to expand splicing, so that the construction speed is high.

The invention provides an air cleaning unit. The air cleaning unit comprises a plasma generator and a supporting part as well as a cleaning part, wherein the plasma generator comprises a collecting plate which is used for collecting dust and is arranged on the supporting part; and the cleaning part is movably connected to the supporting part and has a first location capable of cleaning the collecting plate and a second location far away from the collecting plate. The air cleaning unit effectively solves the problem of incapability of automatically cleaning accumulated pollutants in the prior art.

The invention relates to an anti-cheating device capable of working during power outage for a refueling machine. The anti-cheating device comprises a gear transmission module, an angle sensor, a measuring motherboard and a monitor, wherein the gear transmission module is connected with a flow measuring transducer of the refueling machine and the angle sensor respectively; the measuring motherboard is connected with the angle sensor and the monitor respectively. A rotation angle of a main shaft is monitored by the gear transmission module and the angle sensor kept in mechanical connection with the main shaft of the flow measuring transducer of the refueling machine under the condition of power-on and power-off, and the rotation angle value is measured by the measuring motherboard and is transmitted to the monitor. The monitor is used for judging whether a fuel capacity cheating behavior is implemented by a person during power outage by calculating a fuel capacity change value of the refueling machine before and after power outage. According to the device, large-scale modification is not required to be performed on the existing fuel capacity metering module of the refueling machine, and no influence is caused to normal running of the refueling machine; the technical scheme is simple and convenient, is low in cost and is beneficial to popularization and application.

The invention relates to the field of roller conveying, in particular to a circulating pump system for precision roller machining. The circulating pump system comprises a conveyor belt, a driving wheel, rotating wheels and a fixed plate, wherein the driving wheel is rotationally arranged at the middle position of the upper part of one side of the fixed plate, the two sides of the driving wheel are each provided with the rotating wheel, and the lower side of the driving wheel is also provided with the rotating wheel. The conveyor belt winds the lower end of the driving wheel, then winds the upper surface of the rotating wheel on one side of the driving wheel, then winds the lower surface of the rotating wheel on the lower side of the driving wheel, and finally winds the upper surface of the rotating wheel on the other side of the driving wheel and returns the lower end of the driving wheel. The circulating pump system has the advantages that the design is ingenious, the use is convenient, and the roller can be conveniently conveyed to a machine tool for machining.

The invention discloses a water circulation structure based on a turntable system. The invention can effectively dissipate heat to the optical detector on the two-dimensional photoelectric turntable, and the waterway is unblocked and tightly sealed during the movement of the turntable, which does not affect the detection and tracking performance of the turntable. In the present invention, fluid sockets are arranged at the bottom of the probe head and the top of the U-shaped bracket of the turntable, so that the hose can follow the probe head to rotate in a small range; through the rotary joint arranged on the base, the rotor and stator of the rotary joint follow the motor Rotate relative to each other, while the hose inside remains stationary at all times, independent of the rotation of the turntable. Therefore, the present invention will not have any impact on the normal operation of the waterway during the rotation of the turntable in the two directions of pitch and azimuth, and can realize safe and reliable heat dissipation of the internal components of the turntable without affecting the detection and tracking of the turntable performance.

A method for detecting a dynamic eccentricity fault of a wheel hub motor, which involves a detection method for a motor fault. The steps are as follows: determine the type of the motor, and set a voltage test line for the unit motor; Calculate its standard deviation for all its maximum values; test standard motors with known different dynamic eccentricities, and obtain the linear relationship between dynamic eccentricity and standard deviation D=aσ Coefficients in a ,in, D is the dynamic eccentricity, σ is the standard deviation; substituting the standard deviation obtained in step 4 into the linear relational formula can determine whether there is dynamic eccentricity and the degree of dynamic eccentricity of the in-wheel motor to be tested. The present invention is aimed at the wheel hub motor which itself is a unit motor, without any modification, and can detect whether there is dynamic eccentricity and the degree of eccentricity by simply performing a simple and conventional no-load back electromotive force test. The operation process and calculation method of the present invention are very simple, and the test data is accurate.

The invention discloses a comfortable linen-like knitted fabric and a preparation process thereof. The comfortable linen-like knitted fabric is made of acrylic staple yarn, viscose fiber, cotton fiber and slub cotton blended fabric; the comfortable linen-like knitted fabric Among them, by mass percentage, acrylic staple fiber is 15% to 25%, viscose fiber is 25% to 35%, slub cotton is 10% to 20%, and the balance is cotton fiber. The comfortable hemp-like knitted fabric prepared by the present invention selects acrylic staple, viscose fiber, cotton fiber and slub cotton, and enhances its yarn-forming property with acrylic staple through surface modification of viscose fiber. There is better stability and compatibility between the thread and the second yarn, thereby improving the surface smoothness and hand feeling of the linen-like knitted fabric, and the shape is crisp and the texture is excellent.