69results about How to "Play a fine-tuning role" patented technology

The invention discloses a reaction wall and a construction method of a reaction dado; a plurality of loading holes with a certain hole diameter or hole distance are pre-embedded in the reaction wall and the reaction dado; the construction method mainly utilizes a tailor-made loading hole positioning mould to position each loading hole; a plurality of loading hole positions meeting the standard of the loading hole diameter and hole distance are arranged on the loading hole positioning mould, then matched with positioning stuffs or positioning plugs; therefore, the loading holes can be positioned conveniently and accurately, then fixed; unlike the prior method which measures while fixing, therefore the construction method can greatly improve the hole distance precision of each loading hole and reduce construction man-hours.

The invention discloses a hooking test device of location grids of a reactor fuel assembly. The hooking test device comprises a frame base plate, a frame top plate and a vertical column which is connected between the frame base plate and the frame top plate, wherein a horizontal moving assembly is mounted on the frame base plate; a vertical moving assembly is mounted on the frame top plate. Through using the hooking test device, two grids are mounted on the horizontal moving assembly and the vertical moving assembly respectively; due to the movement of the horizontal moving assembly, a transverse force in the horizontal direction between the grids can be tested; due to the movement of the vertical moving assembly, vertical stress of the grids can be tested, so that an experiment of a hooking state between the grids can be simulated, and the goal of testing the grids can be achieved.

The invention discloses an intelligent roller blind type window, and relates to the field of building closing devices. The intelligent roller blind type window comprises a window frame, transparent soft plastic film, a roll core, a roll shaft and a vertical rod, the roll core, the roll shaft and the vertical rod are all arranged in the window frame, one end of the transparent soft plastic film is arranged in the roll core in a rolling mode, and the other end of the transparent soft plastic film is wound around the roll shaft and then fixed on the vertical rod. The intelligent roller blind type window further comprises a power mechanism which drives the roll core and the roll shaft to move and a control circuit which controls the power mechanism, and the transparent soft plastic film can be furled in the roll core or unfolded in the window under the action of the power mechanism. The intelligent roller blind type window has the advantages that the transparent soft plastic film which can be furled is utilized to serve as a window sash and has the advantages that cleaning is easy and others can not be hurt after the transparent soft plastic film is damaged; when the window is closed, two layers of the transparent soft plastic film which are separated from each other are formed on the window, and the transparent soft plastic film has stronger sound insulation and thermal insulation functions; the window can be automatically closed during wind blowing or raining through the control circuit, window intellectualization is achieved, and the lives of people are more convenient.

The invention discloses a modular LED double light source street lamp, which comprises a main body of the lamp and a reflection cup. The reflection cup of the lamp comprises reflection areas (A, B), a reflection cup frame (C) and a lamp stand mounting hole (E), the reflection areas (A, B) of the reflection cup consist of reflection planes or reflection surfaces (1, 2, 3, 4, 5, 6) with arc-shaped structures respectively, and are connected into a whole through the reflection cup frame (C) with a thickness H2 within the range of between 1 and 30 millimeters, the lamp stand mounting hole (E) with H3 not less than 15 millimeters is arranged between the reflection areas, a height H1 of the reflection areas is within the range of between 15 and 30 millimeters, an included angle a1 is within the range of between 90 and 150 DEG, an included angle a2 is within the range of between 10 and 30 DEG, an included angle a3 is within the range of between 10 and 100 DEG, an included angle a4 is within the range of between 10 and 30 DEG, the height H1 is within the range of between 15 and 30 millimeters, and an included angle a5 is within the range of between 10 and 100 DEG. A light beam of a modular LED light source is reflected out through a light distributor, thereby effectively solving the axial problem of LED luminescence; the actual lighting effect of the lamp is strengthened through the change of the light distributor and the installation direction of the lamp; the lamp can reach or exceed the requirement of lighting technology and the use effect of lighting grade lamps; and the lamp has remarkable social and economical benefits.

The invention discloses a material balance. The material balance comprises a bracket, a hopper and a weighing sensor, wherein the bracket is provided with a weighing module strut, a weighing bracket 1 and a weighing bracket 2; the weighing module strut and the bracket are fixedly connected; the weighing sensor is born on the weighing module strut; the left end of the weighing bracket 1 is supported on the bracket; the right end of the weight bracket 1 is supported on the weighing sensor; the left end of the weighing bracket 2 is supported on the bracket; the right end of the weight bracket 2 is supported on the weighing sensor; the left ends of the weighing bracket 1 and the weighing bracket 2 are provided with protrusions respectively; the corresponding part of the bracket is provided with a groove corresponding to the protrusion; the hopper is provided with three supporting ears; the supporting ear of the left side is supported on the weighing bracket 1; the front supporting ear and the rear supporting ear are supported on the weighing bracket 2; the supporting ears are provided with the protrusions; and the weighing bracket 1 and the weighing bracket 2 are provided with the grooves corresponding to the protrusions. The material balance has the characteristics of good effects of vibration and shaking prevention, high precision, and simple structure.

The invention belongs to the field of smelting devices, and particularly discloses a fixing device of a casting box. The fixing device comprises a fixed seat, a first fixed frame, a second fixed frame, a first gear and a second gear, wherein threaded holes are formed in the first fixed frame and the second fixed frame; the two ends of a bidirectional screw are in threaded connection with the threaded hole of the first fixed frame and the threaded hole of the second fixed frame respectively; a plurality of locating bosses are arranged at the upper end of the first fixed frame; a plurality of locating blocks are arranged at the lower end of the second fixed frame; blind holes are formed in the lower ends of the locating blocks; locating balls and springs are arranged in the blind holes; the lower ends of the springs are connected with the locating balls; the diameter of the blind holes is smaller than the diameter of the locating balls; the first gear is fixedly connected at the middle part of the bidirectional screw; the first gear meshes with the second gear; the fixed seat is rotatably connected with the second gear; and the second gear is fixedly connected with a connecting rod. According to the fixing device, connection parts of an upper sand box and a lower sand box are guaranteed to be in the same horizontal plane while the casting box is fixed, the fixing effect of the casting box is good, and the casting quality of a product is prevented from being affected.

The invention relates to a rail plate locking seat of a magnetic levitation rail. The rail plate locking seat is characterized by comprising a base plate (1). A pair of vertical plates (2) are arranged on the base plate, and one sides of the vertical plates are provided with opening grooves (2a) matched with an F type rail plate (10). The rail plate locking seat has the advantages that the structure is simple, mounting and demounting are convenient, the manufacturing cost is low, high adaptability is achieved, and the rail plate locking seat can be installed on magnetic levitation rail plates with different specifications.

The invention relates to the technical field of measurement. The invention discloses a displacement detection system for measurement. The displacement detection system comprises a base platform, a reference object placing assembly is arranged on one side of the upper surface of the base platform; a sensor erecting mechanism is arranged on the other side of the base platform; the sensor erecting mechanism comprises a first longitudinal sliding assembly and a transverse sliding assembly arranged on the first longitudinal sliding assembly; a sensor mounting plate is arranged on the transverse sliding assembly, the first longitudinal sliding assembly and the transverse sliding assembly are provided with a first driving mechanism and a second driving mechanism respectively, and the first driving mechanism and the second driving mechanism drive the first longitudinal sliding assembly and the transverse sliding assembly to achieve longitudinal and transverse movement of the measuring sensor.Compared with the prior art, the problems of shaking and inaccurate measurement in the measurement process of an existing measurement sensor are effectively solved, meanwhile, the defect that displacement adjustment is inaccurate is overcome, rapid response, control precision and robustness of displacement are improved, and the measurement sensor can rapidly reach a system set value.

The invention relates to a manipulator capable of achieving automatic fine adjustment. The manipulator is provided with a support and a vertical beam. A floating gripper assembly is arranged on the vertical beam. The floating gripper assembly comprises a floating gripper and a floating block. The floating block and the floating gripper are connected through a floating assembly. The floating assembly comprises an elastic body, a floating piece and a connecting plate, wherein the elastic body, the floating piece and the connecting plate are arranged in sequence. A mounting groove is formed in the floating block. A through hole corresponding to the mounting groove is formed in the connecting plate. The hole diameter of the through hole is smaller than that of the mounting groove. The floating piece is formed by a big head portion and a cylindrical portion. The biggest radial width of the big head portion is designed to be between the hole diameter of the through hole and the hole diameter of the mounting groove. The big head portion of the floating piece is located in the mounting groove. The cylindrical portion extends out of the through hole in the connecting plate and is fixedly connected with the floating gripper. A gap is formed between the cylindrical portion of the floating piece and the through hole of the connecting plate. The connecting plate is fixedly connected with the floating block. The manipulator can achieve the automatic fine adjustment through the floating gripper in order to adapt to the current position of a workpiece, can achieve mechanical automation through precision assembly, and improves production efficiency.

The invention relates to the technical field of sewage treatment, and discloses an aeration tank surface scum cleaning device for sewage treatment. The cleaning device comprises a water tank, an air cylinder is fixedly connected to the inner bottom wall of the water tank, a fixing disc is fixedly connected to the top of the air cylinder, a sleeve is connected to the outer portion of the fixing disc in a sleeving mode, and a motor is rotationally connected to the top of the sleeve. Rotating pipes are fixedly connected to the two sides of the sleeve, cavities and inner cavities are formed in the rotating pipes, first sliding rods are fixedly connected to the interiors of the cavities, floating plates are connected to the exteriors of the two first sliding rods in a sleeving mode, and hard pipes are fixedly connected to the bottoms of the two floating plates. After the position of the rotating pipes is adjusted, the floating plates float on the water surface, the hard pipes are always located below the water level under the action of the floating plates, the effect of finely adjusting the position of the hard pipes is achieved, and the situation that the hard pipes cannot suck away scum when sucking sewage due to the fact that the hard pipes are located at the too deep position above or below the water level is prevented.

The invention relates to a pipeline connector sealing device, in particular to a dual sealing device for a high-pressure pipeline in an automobile engine. The dual sealing device comprises an upset head type through-connection device, a double thread connector, a locking nut, a flange plate A and a flange plate B. The upset head type through-connection device and the double thread connector are ina dual sealing connection relation after the locking nut is tightened, preliminary seal is formed through a concave hole and an upset head, secondary seal is formed between a spherical step and a protrusion, and the self-adaptation capability between matched faces is high so that the oil pipe leakage risk can be reduced. The flange plate A and the flange plate B have a locking strengthening function on the locking nut, the sealing effect between the upset head type through-connection device and the double thread connector is guaranteed, and after long-time usage, the fine adjustment functioncan be achieved; and the leakage risks after long-time usage are prevented, the flange plate A and the flange plate B can be matched with rubber gaskets, and the sealing strengthening effect is achieved at the two ends of the locking nut.

The invention discloses an assembly type limiting welding platform for machining of a large-scale welding part, and relates to the technical field of welding equipment. The assembly type limiting welding platform is characterized in that a supporting plate is arranged on the upper side of an I-shaped steel rail, wheel seats are fixedly arranged on four corners of the bottom of the supporting plate, and walking wheels are arranged inside the wheel seats in a rolling mode through axles; the upper end of a hydraulic rod is fixedly arranged on the bottom surface of a fixing frame; first sliding rails are symmetrically and fixedly arranged on the opposite surfaces of the vertical ends of the fixing frame, and a first adjusting plate is movably arranged between the first sliding rails; second sliding rails are symmetrically and fixedly arranged on the left side and the right side of the upper portion of a fixing platform, and a second adjusting plate is arranged on the upper sides of the second sliding rails; and limiting mechanisms are fixedly arranged on the upper portions of the first adjusting plate and the second adjusting plate. According to the assembly type limiting welding platform, two to-be-welded workpieces are correspondingly fixed on two adjustable platforms on the left and right, and welding joints of the two workpieces are aligned through an automatic mechanical adjusting manner, so that operation is simple, time and labor are saved, and the working efficiency is improved.

The invention creates and discloses a shutter type window, and relates to the field of building closing devices. The shutter type window comprises a window frame, a transparent plastic soft film, a rolling core, a roller and a vertical rod. The rolling core is arranged in the window frame in a rotatable mode. The roller is arranged on the window frame in a leftwards and rightwards slidable mode. The vertical rod is arranged in the window frame. One end of the transparent plastic soft film is wound around the rolling core, and the other end of the transparent plastic soft film is arranged on the vertical rod after being wound around the roller. The window further comprises a power mechanism for driving the rolling core and the roller to move. The transparent plastic soft film can be wound around the rolling core or unwound at a window opening under the action of the power mechanism. The shutter type window has the advantages that compared with an existing glass window, the transparent plastic soft film capable of being wound is adopted as a window sash for the window, the outer side face of the window can be easily cleaned, and the window can not hurt people when damaged; when the window is closed, two separated transparent plastic soft films are formed in the window opening, and the window has a high sound insulation function and a high thermal insulation function.

The invention provides a laser cladding device. The laser cladding device comprises a wire feeder, a jetting head and a wire feeding pipe, wherein the wire feeder and the jetting head are connected through the wire feeding pipe, and the wire feeding pipe penetrates through the jetting head from one side of the jetting head in the direction of the wire feeder and is connected with the jetting head;the portions, penetrating through the jetting head in the direction of the wire feeder, of the wire feeding pipe are provided with an upper sealing gasket and a lower sealing gasket respectively, thelower sealing gasket is arranged on a supporting base, and the upper sealing gasket is arranged on a supporting cover; the lower sealing gasket comprises a fixing portion and a wire guiding pipe through hole, a columnar through hole is taken as the fixing portion and connected with the supporting base through a bolt, the diameter of the bolt is smaller than the inner diameter of the columnar through hole, the bolt can slide in the direction of the columnar through hole, and then position adjustment of the lower sealing gasket is achieved; and the upper sealing gasket comprises a fixing portion and a wire guiding pipe through hole and is connected with a support cover through the fixing portion. Therefore, the defects that in the prior art, a wire feeding hose can be bent in the moving cladding process of a jet nozzle, wires are different in frictional resistance in the conveying process, the speed of the wires changes after the wires leave from the jet nozzle, then high cladding layershape and size precision can not be guaranteed, and wire blocking is prone to occurring if the bending radius of the hose is very small are overcome.

The application discloses an earth pressure balance shield machine. The earth pressure balance shield machine comprises a shield machine body and a thrust oil cylinder arranged on the shield machine body, wherein a cutterhead is arranged on the front portion of the shield machine body, a master driver is connected onto the cutterhead, a major spiral conveyer and a minor spiral conveyer are furtherarranged on the shield machine body, and the front ends of the major spiral conveyer and the minor spiral conveyer are respectively connected with a soil bin of the shield machine body and used for outputting slag soil in the soil bin. The earth pressure balance shield machine outputs the slag soil in the soil bin under cooperation of the minor spiral conveyer and the major spiral conveyer, achieves a good fine adjustment function for soil pressure in the soil bin through the minor spiral conveyer, and enables the soil pressure on an excavation face to accurately reach a preset soil pressurevalue, thereby effectively guaranteeing stability of the excavation face. The invention further provides an earth pressure balance shield machine control system and a control method thereof. The earthpressure balance shield machine control system and the control method thereof perform automatic control on the rotation speed of the major spiral conveyer and the minor spiral conveyer, and achieve accurate control for the slag discharge amount of the soil bin, thereby enabling the soil pressure of the excavation face to accurately reach the preset soil pressure value.

The invention discloses an electric melting crucible kiln for flexible glass, and belongs to the technical field of melting furnaces. The electric melting crucible kiln comprises a kiln body; the kilnbody comprises a melting chamber, a clarifying chamber and a forming chamber which sequentially communicate with one another from front to back; a feeding port and an observation hole are formed in the upper end of the melting chamber; a discharging groove is formed in the lower end of the forming chamber; a temperature detection device and a heating device are arranged in each of the melting chamber, the clarifying chamber and the forming chamber, and a liquid flowing channel communicating the melting chamber with the clarifying chamber is arranged between the melting chamber and the clarifying chamber; a cooling channel is arranged above the liquid flow channel; a second thermocouple is arranged at the bottom of the liquid flow channel; an airflow isolation device is arranged between the clarifying chamber and the forming chamber. The temperature of molten glass is controllable and adjustable, conditions are created for drawing the flexible glass, the quality of the drawn flexible glass is guaranteed, resource saving is facilitated, efficient utilization of energy is achieved, and the electric melting crucible kiln has good practical value.

A frequency discriminating method for AFC circuit in diversity mode includes such steps as deleting the head data of a first frame, filling zero to frame head and tail to generate continuous frequency difference detecting pairs, cross-multiplying the input signals of cross-multiplier, sending the said detecting pairs to the frequency discriminator to obtain frequency difference, and over sampling to obtain 2x samples for output. Its advantages are simple equipment and high speed.