17results about How to "Low structural requirements" patented technology

The invention discloses a full-stroke linear absolute position detection method, and belongs to the technical field of position detection. The invention aims to solve the problems of complex circuit structure and low detection precision of the existing full-travel rotor cable-free absolute position detection method. Comprising the steps that a permanent magnet array is installed on a rotor, an anisotropic magnetoresistive sensor array is correspondingly arranged on a stator, and the length of the anisotropic magnetoresistive sensor array is the position detection total stroke; the polar distance between adjacent permanent magnets is the same as the distance between adjacent sensors; determining a main sensor in a middle position in a coupling state according to the current sensor coupling number and the permanent magnet pole number, and calculating the current absolute position initial value of the rotor according to the angle reading of the main sensor; and position compensation is carried out on the current absolute position initial value of the rotor according to the pole number of the permanent magnets, the total number of the sensors and the relative position relation between the main sensor and the permanent magnet array, and the final detection position of the rotor is obtained. The method is used for absolute position detection.

The utility model discloses a hoisting feeding device and a feeding system, and relates to the field of feeding facilities, the hoisting feeding device is used for feeding to a feeding port, and the hoisting feeding device comprises at least two sets of track supports which are arranged at intervals along the arrangement track of the feeding port, the track support comprises a stand column used for being fixed to a building foundation and a mounting beam fixed to the stand column and extending to the position above a feeding port arrangement track. The hanger rail is arranged according to the arrangement track of a feeding port and is fixed on each mounting beam; and the walking hoisting mechanism is mounted on the hoisting rail and can hoist materials along the hoisting rail. A single-side supporting structure is formed through the rail support, the hanger rail and the walking hoisting mechanism are used as a hoisting and feeding execution body, compared with a traveling hoisting system, the overall structure is light, the requirements for bearing and the structure of the installation environment are low, interference with the surrounding environment is not likely to happen, and all-directional covering of all feeding ports is easy to achieve; and the application scene is wider.

The utility model belongs to the technical field of track lamps, and particularly relates to a track lamp capable of quickly installing optical accessories, which comprises a lamp shell, a light-emitting component, a lens support, an accessory supporting ring and an accessory pressing ring. A groove is formed in the inner wall of the end, close to the light-emitting assembly, of the lamp shell, the accessory supporting ring is clamped into the groove, internal threads are arranged on the inner wall of the accessory supporting ring, external threads matched with the internal threads are arranged on the outer side wall of the accessory pressing ring, and the accessory pressing ring is connected with the internal threads of the accessory supporting ring through the external threads. A mounting position for mounting an optical accessory is arranged between the accessory supporting ring and the accessory pressing ring, the accessory supporting ring is used for fixing the lens support, and the accessory pressing ring is used for fixing the optical accessory. According to the utility model, through mutual cooperation of the accessory supporting ring and the accessory pressing ring, rapid installation and replacement of the optical accessory and the lens can be realized.

The utility model discloses a yarn disc control system, including frame, control unit, yarn disc, driving gear and driven gear, control unit fixedly set up on frame, yarn disc rotatable installation is in on frame, the output shaft of control unit is connected with driving gear fixedly, driven gear is connected with yarn disc, driving gear is engaged with driven gear. This yarn disc control system effectively avoided the problem of yarn disc slip, can stable accurate control yarn disc movement simultaneously, and long service life, and the installation and maintenance are convenient.

The invention discloses a casting technology for a nodular cast iron bearing retainer. The casting technology comprises the steps that S1, a precoated sand shell mold is designed through the nodular cast iron bearing retainer; s2, a shell mold is manufactured, an upper shell mold and a lower shell mold are manufactured through the shell mold, and then the upper shell mold and the lower shell mold are connected into a precoated sand shell mold; s3, iron shots are flatly laid at the bottom of a sand box and then compacted through vibration, the precoated sand shell mold is placed on the iron shots in the sand box, the space between the inner wall of the sand box and the precoated sand shell mold is filled with the iron shots layer by layer from bottom to top, the iron shots are compacted through vibration, molten iron is poured into a mold cavity of the precoated sand shell mold, and after cooling, the molten iron is solidified and formed into a bearing retainer casting; and S4, the precoated sand shell mold is separated from the iron shots, the precoated sand shell mold is knocked, broken and removed from the outer side of the bearing retainer casting, and the internally-formed bearing retainer casting is obtained. The process is simple in step, the quality of the bearing retainer casting can be effectively improved, the casting cost is low, the production efficiency is improved, and the probability of defective products is reduced.

The present invention can provide a data processing method and system, a computer device, and a computer storage medium. The data processing method may include: generating a data processing task based on a received task initiation instruction, reading the file path information of the data to be processed pointed to by the data processing task, decomposing the data processing task into multiple subtasks according to the file path information, creating a cluster sub-role for processing the subtasks, assigning at least one subtask to each cluster sub-role, and using each cluster sub-role to process at least one subtask received by each cluster sub-role, so as to collect and analyze the data to be processed. The present invention can quickly process a large amount of data through parallel distributed data collection means, and the data collection and analysis efficiency is extremely high. Based on the advantages of easy construction and expansion of clusters, it can better meet the timely processing needs of rapidly growing data, and significantly reduce the difficulty of data collection and analysis.

The invention relates to the field of hydro-generators, and discloses a detachable magnetic pole type fan of a high-rotating-speed vertical hydro-generator, which consists of an upper fan and a lower fan. The upper fan is fixedly connected with the magnet yoke through bolts, the lower fan is fixedly connected with the magnet yoke through bolts, and the fans are driven to do circumferential rotation motion through rotation of the magnet yoke of the generator, so that the ventilation and heat dissipation functions are achieved. Effective ventilation and heat dissipation of the water-turbine generator set are achieved through rotation of the fan, the running temperature of the set is reduced, meanwhile, the upper fan is of a structure formed by combining and fixing the notch and the cover plate, the whole upper fan does not need to be dismantled when a magnetic pole is dismantled, only the cover plate needs to be dismantled, and operation is convenient. Therefore, the operation stability of the generator set is improved, the maintenance period of the generator set is prolonged, and the field installation and maintenance are greatly facilitated.

The present invention discloses an underwater cable drainage pipe laying structure, including a cable drainage pipe, leakage drainage equipment, water level monitoring equipment, a drainage pump and a cable well. The cable drainage pipe is laid along the river bottom, and a drainage pipe is led to the leakage water collection well at the lowest point of the cable pipe, and the bottom of the leakage water collection well is connected to the drainage pipe main pipe and the water level monitoring equipment. The drainage pipe main pipe is led to the cable well on the shore along with the cable drainage pipe arrangement and connected to the drainage pump, and discharged to the external drainage system. The pressure gauge type water level gauge is arranged at the bottom of the leakage water collection well to monitor the leakage water level and control the opening and closing of the drainage pump. The water level gauge and the water level gauge power line can use gravity to pull the water level gauge power line to complete the installation and replacement of the water level gauge. The gap between the end of the cable pipe and the cable is sealed with a caulking structure, and a ventilation pipe is buried at the same time to ensure the balance of air pressure inside and outside the cable pipe. The present invention improves the cable operation environment, saves construction period, ensures safety, and has less overall investment increase.

The utility model relates to a heat preservation module for a kiln and the kiln. The heat preservation module comprises a hollow module main body, the module body comprises a supporting frame in a regular shape and a heat preservation layer arranged along the inner side of the supporting frame, and the heat preservation layer is connected with the supporting frame through an anchorage device. The supporting frame is provided with a first linear groove; the module body is detachably connected with the kiln based on the first linear groove, and the module body is movably arranged in the kiln based on the first linear groove. The first linear groove is formed in the module body to achieve installation and movable arrangement of the module body, and the installation structure of the module body can be effectively simplified. Besides, the first linear groove can achieve the overall bearing effect in the mode that the side face or the bottom face of the first linear groove makes contact with the supporting structure, the installation flexibility is effectively improved, the structure and arrangement requirements of the supporting structure can be lowered, and the service life of the supporting structure is prolonged. And further, the influence of impurities, dust and the like in the kiln on disassembly, assembly and movable arrangement of the heat preservation module can be effectively overcome.

The present invention relates to the field of motor control technology, and discloses a method for detecting collision of a nozzle of a placement machine, a motor driver, and a medium. The method comprises the following steps: after driving the nozzle to move to a specified position, the current speed and motor current are obtained in real time. If the difference between the current speed and the planned speed is greater than a preset threshold a and drops to 0, it is determined that a collision occurs; otherwise, if the motor current suddenly changes to a set maximum value, when the maximum value is maintained for more than a set time a and the motor displacement fluctuation amplitude is less than a threshold c, it is determined that a collision occurs. This solution only requires current and speed detection to achieve fast and accurate judgment of devices with complex systems and weight-sensitive components such as placement heads. The placement efficiency of the placement machine will not be significantly affected by the excessively long collision detection time, and there is no need to use additional components such as force sensors, which greatly reduces the requirements for the structure.

The invention relates to the field of hydro-generators, and discloses an impact hydro-generator top shaft insulation and measurement structure which is composed of a top shaft, a sliding rotor, a shaft insulation structure, an insulation measurement structure and a fixing structure. Insulation between the top shaft and the sliding rotor is realized through the shaft insulation structure, insulation measurement between the top shaft and the sliding rotor is realized through the insulation measurement structure, and ground insulation and fixation of the insulation measurement structure are realized through the fixing structure. Insulation and measurement between the top shaft and the sliding rotor of the generator are realized, short circuit accidents caused by the fact that current generated by electromagnetic induction is transmitted to other parts of the generator set through the position are avoided, the insulation performance of the top shaft and the sliding rotor is monitored in real time through the insulation measurement loop, pre-judgment is performed in advance to avoid risks, and meanwhile, the insulation performance of the top shaft and the sliding rotor is improved. The insulation measurement structure is subjected to insulation fixing treatment, section and short circuit of an insulation loop at a high rotating speed are avoided, short circuit accidents of the unit are effectively avoided through the measures, and the operation stability and reliability of the unit are improved.

A method for forming cellulose products in a forming mould system from an air-formed cellulose blank structure, where the forming mould system comprises one or more forming moulds. Each forming mould comprises a first mould part and a second mould part configured for cooperating with each other during the forming of the cellulose products. The method comprises the steps: providing the cellulose blank structure, and in the cellulose blank structure defining one or more product sections and a residual section surrounding or arranged in connection to the one or more product sections; compressing at least a portion of the residual section to a first degree of compression higher than a degree of compression of the one or more product sections; feeding the cellulose blank structure in a feeding direction to a forming position in the forming mould system, where in the forming position each product section is arranged between a corresponding first mould part and second mould part; forming the cellulose products from the cellulose blank structure between the first mould part and the second mould part by heating the cellulose blank structure to a forming temperature in the range of 100-300 °C; and pressing the cellulose blank structure with a forming pressure in the range of 1-100 MPa, preferably 4-20 MPa.

The utility model discloses a walking type electric carrier and belongs to the technical field of carriers, the walking type electric carrier comprises a machine body and an operation handle connected with a driving assembly in a control mode, the machine body comprises a pallet fork and a machine frame arranged above one end of the pallet fork, the machine frame forms a vertically-arranged battery bin, a controller is installed at the position of the machine frame, and a shell covers the machine frame. A wheel carrier is connected to the front of the machine frame, an oil cylinder and an operation handle are installed on the wheel carrier, a hydraulic station is arranged between the oil cylinder and the machine body, and a cover shell covers the hydraulic station. The product structure is further optimized, the hydraulic station housing is independently arranged, and the structure and the size of the rack are simplified, so that the product structure is simple, reliable, compact and small.

A method for forming cellulose products in a forming mould system from an air-formed cellulose blank structure, where the forming mould system comprises one or more forming moulds. Each forming mould comprises a first mould part and a second mould part configured for cooperating with each other during the forming of the cellulose products. The method comprises the steps: providing the cellulose blank structure, and in the cellulose blank structure defining one or more product sections and a residual section surrounding or arranged in connection to the one or more product sections; compressing at least a portion of the residual section to a first degree of compression higher than a degree of compression of the one or more product sections.

A seabed grid meeting CCR and BIS requirements is characterized in that the grid is provided with an outer frame, a plurality of transverse round steel bars are arranged in the outer frame, the adjacent round steel bars are arranged in a front-back staggered mode, two round steel bar layers are formed in the outer frame, and a balancing weight is arranged in the center of the bottom of the grid; the grating is located in the surrounding plate, eye plates protruding outwards are arranged on the two sides of the outer frame, the rotating shaft penetrates through the two eye plates to connect the grating with the surrounding plate, and the grating can turn over around the rotating shaft relative to the surrounding plate. A plurality of baffles are arranged on the periphery of the grating and located on one side of the grating, the baffles protrude out of the outer frame, and when the grating is closed, the baffles are connected with the coaming. According to the seabed grating, the round steel layering design is adopted, the distance between the two round steel is increased to 62 mm, therefore, the circulation area occupied by the round steel is still 1 / 3, meanwhile, in order to guarantee the strength of the seabed grating, the round steel is divided into the upper layer and the lower layer, the staggered-layer design is adopted, and through the round steel staggered-layer mode, the strength of the seabed grating is guaranteed, and it is also guaranteed that the circulation area of the seabed grating is not changed.

This invention relates to a small, high-precision temperature control device, belonging to the field of spacecraft thermal control technology. A cover plate and a base plate form a closed cavity, which is installed inside the satellite via a heat insulation pad. The temperature-controlled device is mounted on the base plate inside the closed cavity via the heat insulation pad. Heaters and temperature sensors are installed on the temperature-controlled device, the base plate of the temperature control device, and the cover plate, respectively. Depending on the heat dissipation of the temperature-controlled device, thermal insulation or heat dissipation-enhancing thermal control coatings are selected between the temperature-controlled device and the temperature control device, and between the outside of the temperature control device and the satellite. By setting conditional formulas, the controlled temperature of the object, the controlled temperatures of the cover plate and the base plate, the surface area of ​​the cover plate and the base plate, the designed temperature control power of the object, and the designed temperature control power of the cover plate and the base plate are determined, and their rationality is confirmed through parameter verification. This invention can significantly suppress the influence of satellite temperature fluctuations on the temperature of the controlled object, achieving high-precision temperature control of the controlled object.