232 results about "Radial deformation" patented technology

The invention relates to the technical field of deformation detection, in particular to a method for measuring the deformation of a rotary body part, which comprises the following steps of: arranging measuring points on a target rotary body part, and performing dotting measurement by using a three-coordinate measuring instrument to obtain dotting data which are three-dimensional coordinates; based on the dotting data, calculation is carried out, and deformation information of the target rotary body part is obtained, the calculation comprises the steps of determining a data source, normalizing coordinates, converting a coordinate form, sequencing path measuring points, compensating a measuring head, calculating a position-error function, calculating all-directional axial deformation and radial deformation, speculating all-position deformation, and performing any combination calculation in multi-coordinate system data integration. According to the invention, the deformation of the rotary part can be measured conveniently, quickly and efficiently.

The invention relates to the technical field of numerical control machine tool machining, and discloses a dynamic optimization method for metal joint machining parameters of a numerical control machine tool. The method comprises the following steps: acquiring initial characteristic data of a metal joint blank in a numerical control machine tool processing area in real time, wherein the initial characteristic data comprises surface topology distribution data, material hardness gradient data and thermal expansion coefficient data; according to the stage identification code of the current machining procedure, a dynamic constraint rule set bound with the stage identification code is called, and the dynamic constraint rule set comprises an axial cutting force threshold value, a radial deformation tolerance range and a temperature drift compensation coefficient; and finally, based on the initial feature data and the dynamic constraint rule set, an initial machining parameter vector corresponding to a multi-objective optimization function is generated, and the initial machining parameter vector comprises a main shaft rotating speed reference value, a feeding rate weighting factor and a cooling liquid flow proportionality coefficient.

The embodiment of the invention discloses a multi-sensor monitoring and compensating method for machining deformation of a large annular part. According to the embodiment of the invention, the feed-forward compensation amount can be generated on the basis of the predicted radial deformation amount of the stress abrupt change area in the surface radial deformation appearing time when the large annular part is machined, and then the feedback compensation amount is generated according to the deviation between the expected machining contour and the actual radial position data of the large annular part; and generating a total compensation amount according to the feedback compensation amount and the feed-forward compensation amount, and adjusting the motion trail of a cutter on the machine tool according to the total compensation amount, and the expected machining contour, the shape tolerance and the position tolerance of the large annular piece. Therefore, according to the embodiment of the invention, deformation caused by stress release can be compensated in real time in the machining process of the large annular part, and the compensation efficiency is improved.

The invention discloses a rotor blade tip gap design method based on cold and hot state transformation and an aero-engine. The design method comprises the steps that the design working condition of cold and hot state transformation of a fan rotor is determined; performing pneumatic calculation on fan components; designing the structure of the hot-state blade S1; reversely solving the hot-state blade S1 to obtain a cold-state blade S2; designing a cold-state blade structure; performing forward solution on the cold-state blade to obtain a hot-state blade S3; forward solving is carried out on the fan rotor cold-state blade S2 to obtain a corresponding hot-state blade S3; performing error analysis on the thermal-state blade S3 and the thermal-state blade S1; blade tip models of the cold-state blade S2 and the hot-state blade S1 are compared and analyzed, and the front edge radial deformation delta q and the tail edge radial deformation delta h of the fan rotor are obtained; and according to the designed thermal state gap value delta r, the front edge gap Sq and the tail edge gap Sh of the blade tip of the fan rotor blade are obtained.

The invention discloses a casing centralizer with a pipe diameter adjusting function, and relates to the technical field of petroleum and natural gas drilling engineering equipment, the casing centralizer comprises two fixing rings which are symmetrically distributed left and right, the outer surface of each fixing ring is provided with a plurality of fixing seats at equal intervals in the circumferential direction, and each fixing seat is rotatably connected with a connecting plate; an elastic plate is arranged between the left connecting plate and the right connecting plate in the horizontal direction, and the two ends of each elastic plate are rotationally connected with the two adjacent connecting plates respectively. By rotating the adjusting bolt, the driving screw rod and the fixing pipe are in threaded transmission, and the distance between the two fixing rings is accurately controlled, so that the annular supporting frame formed by the connecting plate and the elastic plate generates controllable radial deformation; stepless adjustment of the supporting outer diameter is achieved, different borehole sizes are accurately matched, the problem that a centralizer with a fixed size is insufficient in supporting or difficult to descend is solved, it is ensured that a casing pipe is efficiently centered, and a foundation is laid for forming a uniform cement sheath.

The invention discloses a power turbine rotor structure design method, which belongs to the technical field of aero-engines, and comprises the following steps: arranging an oil film damper according to strain energy distribution and vibration mode; performing structure optimization on the power turbine rotor according to the radial deformation condition of the connection interface; designing the sectional wall thickness of the power turbine shaft; a balance boss is arranged on the outer wall of the maximum displacement position in each order of vibration mode power turbine shaft; and the gap between the central pull rod of the power turbine rotor and the power turbine disc is designed according to the maximum vibration displacement of the power turbine disc. According to the invention, the oil film dampers are arranged at reasonable positions, so that the rotor has good vibration reduction; connection interface deformation coordination calculation is carried out, a connection structure is optimized, and the connection interface is not damaged under long-term work; and designing and optimizing the segmented shaft wall thickness, optimizing and designing the critical rotating speed margin, considering the influence of the limit unbalance on the gap, and realizing a good dynamic balance characteristic.

The invention relates to a device and a method for measuring radial strain and micro-deformation of pyrolysis of oil-rich coal. The device comprises a pressure chamber, and a pressure chamber inner cylinder is arranged in an inner cavity of the pressure chamber; a gas confining pressure chamber is formed between the outer wall of the pressure chamber inner cylinder and the inner wall of the pressure chamber; the annular heating sleeve sleeves the outer side of the pressure chamber; the displacement measuring structures are arranged on one side of the annular heating sleeve, and each displacement measuring structure corresponds to one protruding structure and is connected with the corresponding protruding structure; the stress applying structure is arranged at the lower end of the other side of the annular heating sleeve and is communicated with the gas confining pressure chamber; the temperature sensor is communicated with the gas confining pressure chamber; and the axial load loading mechanism is positioned above the pressure chamber. The radial strain capacity of the coal rock can be conveniently measured under the conditions of high temperature and triaxial stress loading, meanwhile, the radial micro-deformation of the coal rock is monitored, and the problem that the radial deformation is difficult to measure in the stress loading process of the coal rock under the high temperature condition is solved.

A method for the fine adjustment of the rate of a mechanical oscillator with an oscillating inertial mass, equipped, in a first step, with an actuator made of material suitable for irreversible local micro-expansion under the action of laser fires, to impart to an inertia-block a radial travel during suitable laser fires on a writing zone of the actuator, in a second step, the initial rate of the oscillator is set and measured, in a third step, the direction and the value of the deviation required to achieve a predetermined rate range, and of the travel to be imparted to inertia-blocks are calculated, in a fourth step, a writing zone is subjected to femtosecond laser fires to create expansion lines by local molecular expansion to radially deform the actuator, in a fifth step the rate is measured and the third step and fourth step are repeated if required.

A catheter tube (102) includes an inner conduit (108) and a reinforcement structure (112). The reinforcement structure includes a coiled wire (118) surrounding the inner conduit and a braided wire assembly (120) surrounding the coiled wire. The reinforcement structure is configured to cause the inner conduit to resist radial deformation as a medical device is moved through the inner conduit. A medical intervention system includes the example catheter and an example medical device that can be deployed and implanted using the catheter (100).

The invention discloses a multi-layer weft steel skeleton and a pipeline thereof, and relates to the technical field of steel skeleton pipelines, the multi-layer weft steel skeleton comprises internal supporting warps, external spiral wefts are spirally welded outside the internal supporting warps, the internal supporting warps are formed by arranging a plurality of independent warps in the circumferential direction, and the external spiral wefts are spirally welded outside the internal supporting warps. According to the steel skeleton composite plastic pipeline, by means of the unique triangular arrangement structure design of the external spiral wefts, the stress condition of the steel skeleton composite plastic pipeline in the using process is improved, radial deformation of the pipe wall is effectively restrained, and the service life of the steel skeleton composite plastic pipeline is prolonged. And meanwhile, the internal supporting longitude lines cooperatively provide axial rigid support, the overall pressure bearing capacity and impact resistance of the pipeline are remarkably improved through the combined action of the internal supporting longitude lines and the external supporting longitude lines, the phenomenon that the pipeline is exploded in the using process of the steel skeleton composite plastic pipeline is effectively prevented, and then the overall service life of the steel skeleton composite plastic pipeline is effectively prolonged.

The invention discloses a two-stage magnetic coupling hydraulic impact forming device and method. The two-stage magnetic coupling hydraulic impact forming device comprises a forming assembly, a first magnetic coupling assembly, a second magnetic coupling assembly and a control system. The forming assembly comprises a female die, a hydraulic cylinder filled with a liquid medium and a plunger part arranged in a sliding mode. One end of the hydraulic cylinder is in butt joint with the female die and a blank is placed. The first magnetic coupling assembly is arranged at the end, away from the female die, of the hydraulic cylinder and drives the plunger part to push the liquid medium through a coupling magnetic field to apply axial extrusion force to the blank. The second magnetic coupling assembly is arranged at the end, close to the female die, of the hydraulic cylinder and drives the blank to generate controllable radial deformation through a coupling magnetic field. The control system is in communication connection with the two magnetic coupling assemblies to achieve synchronous work. Through the synergistic effect of the axial extrusion force and the radial electromagnetic force, the blank is evenly stressed, excessive reduction of the wall thickness is restrained, the defects of stress concentration, cracking and the like are reduced, and the size precision of a formed part and the yield of finished products are remarkably improved.

This invention provides a heliostat main beam positioning and vibration damping assembly and a heliostat main beam drilling device. The heliostat main beam positioning and vibration damping assembly includes a positioning clamping structure and a vibration damping structure. The positioning clamping structure includes an axial limiting part and a radial fixing part. The axial limiting part is configured to cooperate with the main beam mounting component to axially limit the heliostat main beam. The radial fixing part is configured to support the heliostat main beam and radially limit its movement. The vibration damping structure includes a mating part, an elastic component, and a fixed base. The mating part is directly or indirectly slidably disposed on the fixed base and is configured to clamp or connect to the main beam mounting component. The elastic component is disposed on the fixed base and is configured to directly or indirectly act on the mating part. This invention solves the problems of existing heliostat main beam positioning devices, which cannot effectively control vibration during processing and cause large radial deformation of the main beam, making it suitable for large-scale application.

An exhaust system and a method for joining components of an exhaust system comprise obtaining an outer sleeve, a first pipe with a first end, and a second pipe with a second end. The method includes inserting the first end of the first pipe inside the outer sleeve to define a first overlap, inserting the second end of the second pipe inside the outer sleeve to define a second overlap, and radially deforming the outer sleeve and the first pipe inward at the first overlap. At the second overlap, the outer sleeve and the second pipe are radially deformed inward. The outer sleeve and the first pipe, as well as the outer sleeve and the second pipe, are pressed into engagement along the length of the first and second overlaps to define a pipe joint.

The application discloses a battery monomer, which comprises a shell, an array of winding cores, the shell comprises a cylindrical side wall, a first end wall and a second end wall, the array of winding cores comprises at least one row of cylindrical winding cores, the cylindrical winding cores of each row are arranged in sequence along a second direction, and the axis of each cylindrical winding core extends along a third direction, at least one cylindrical space extending along the third direction is enclosed between the outer side surfaces of the cylindrical winding cores and / or between the outer side surfaces of the cylindrical winding cores and the inner side surface of the cylindrical side wall, a cylindrical support is arranged in the at least one cylindrical space, the cross section of the cylindrical support is matched with the cross section of the cylindrical space where the cylindrical support is located, the outer side surface of the cylindrical support is attached to the outer side surface of the cylindrical winding core and / or the inner side surface of the cylindrical side wall, the cylindrical support can limit the radial deformation of the cylindrical winding core and can adaptively absorb, store and release electrolyte. While ensuring the stability of the structure of the cylindrical winding core, the application improves the defects of uneven distribution and insufficient storage of electrolyte.

The invention relates to the field of sensors, in particular to a torque sensor. The torque sensor comprises a flange, a middle shaft, a transition piece and an induction module. The flange is provided with a containing cavity, the middle shaft is located in the containing cavity, and one end of the middle shaft is integrally connected with the flange. The sensing module comprises a sensing body, the sensing body is installed in the containing cavity, and the sensing body is located at the other end of the middle shaft; the transition piece is arranged between the inductor and the middle shaft so as to absorb deformation at the joint. According to the torque sensor provided by the invention, one end of the middle shaft is arranged to be integrally formed and connected with the flange, so that assembly uncertainty caused by thread fastening and residual stress introduced by mechanical pre-tightening force are avoided; the other end of the center shaft is connected with the inductor through the transition piece, the transition piece can absorb axial and radial deformation caused by uneven thermal expansion in the welding process, welding thermal stress can be buffered to be transmitted to a sensitive sensing area, and therefore interference on strain measurement accuracy of the inductor is reduced, and long-term stability is guaranteed.

The invention discloses bidirectional rock mass displacement sensor equipment based on elastic alloy assistance. The bidirectional rock mass displacement sensor equipment comprises a detection assembly, an elastic cooperative detection assembly, a mounting and fixing assembly, a main body shell, a sensing module and a signal transmission assembly, the detection assembly comprises a detection rod, a contact end and a limiting check ring, one end of the detection rod is fixedly connected with the contact end, the other end of the detection rod extends into the main body shell, and the limiting check ring is welded to the periphery of the detection rod; the elastic cooperative detection assembly comprises a spiral spring and an elastic alloy, sleeves the periphery of the detection rod and is located between the front end of the main body shell and the contact end; the mounting and fixing assembly is an outer hexagonal threaded connection part and is arranged at the front end of the main body shell; the main body shell is of a stainless steel sealing structure, internally accommodates the sensing module and is provided with a waterproof connecting structure at the rear end; the sensing module comprises an axial displacement sensor and a radial deformation sensor; the sensor equipment is suitable for geological disaster early warning, mine rock mass monitoring, slope engineering and rock mass stability evaluation scenes of tunnel construction.

The method for evaluating the deformation state of a transformer winding based on monitoring the axial magnetic flux leakage distribution comprises the following steps: establishing a three-dimensional simulation model of an actual transformer; obtaining a deformation position of the actual transformer, i.e., a position of the actual transformer winding where radial deformation is most likely to occur; simulating different degrees of winding radial deformation at the corresponding deformation position on the three-dimensional simulation model and performing simulation calculation to obtain simulated axial magnetic flux leakage distribution data of the three-dimensional simulation model when different degrees of winding radial deformation occur at the corresponding deformation position; setting a plurality of magnetic sensors along the axial direction of the winding at the deformation position of the actual transformer, and obtaining actual axial magnetic flux leakage distribution data at the deformation position of the actual transformer in the running state; and comparing the simulated axial magnetic flux leakage distribution data with the actual axial magnetic flux leakage distribution data to evaluate the deformation state of the winding of the actual transformer. The design can accurately evaluate the overall deformation state of the actual transformer by monitoring the axial magnetic flux leakage distribution at the deformation position of the actual transformer.

The utility model discloses a deep groove ball bearing fitting and ball sleeving device, belongs to the technical field of deep groove ball bearing fitting, and solves the problems that the existing manual fitting efficiency is low, steel balls are easily scratched, and the quality and the precision of bearings are influenced. The device comprises a bottom plate, an outer ring deformation pressurizing mechanism, an air cylinder driving mechanism, a lever mechanism, a sliding rail mechanism, a limiting mechanism and a deep groove ball bearing placing area, and the moving centers of the sliding rail mechanism and the limiting mechanism and the central axis of the deep groove ball bearing placing area are located on the same axis. The working end of the lever mechanism is connected with the front end of a sliding body of the sliding rail mechanism, and the air cylinder driving mechanism provides first radial thrust for the sliding rail mechanism through the lever mechanism. The sliding rail mechanism and the limiting mechanism pressurize the deep groove ball bearing outer ring on the deep groove ball bearing placing area to enable the deep groove ball bearing outer ring to generate elastic deformation, the limiting mechanism restrains the radial deformation range of the deep groove ball bearing outer ring and prevents plastic deformation, and the strain epsilon < lt > needs to be ensured; the material yield limit is epsilon y.

The invention provides a screw fastening torque increasing device. The device comprises a shell with a containing cavity. The cam assembly is rotatably arranged on the shell and is used for inputting torque; the output component is rotatably arranged in the shell and is used for outputting torque to fasten the screw; the deformation transmission wheel is fixed in the shell; the cam assembly comprises a driving cam arranged on the inner side of the deformation transmission wheel. The output component is arranged on the outer side of the deformation transmission wheel in a surrounding mode. The inner circumferential face of the deformation transmission wheel makes contact with the driving cam, and a plurality of protrusions arranged in a circumferential array are arranged on the outer circumferential face of the deformation transmission wheel. The output component comprises a force transmission structure which is correspondingly matched with the bulge; and the deformation transmission wheel is configured to outwards push the deformation transmission wheel in the radial direction of the deformation transmission wheel to generate radial deformation when the driving cam rotates, so that the bulge is driven to be in contact with a force transmission structure on the output component, and thrust is transmitted to the output component to drive the output component to rotate for screw fastening.

The utility model relates to a rotor punching sheet, a rotor core, a rotor, a motor and a vehicle, the rotor punching sheet comprises a first punching sheet part and a second punching sheet part located at the radial inner side of the first punching sheet part, and the second punching sheet part and the first punching sheet part are elastically connected, so that various impacts and vibrations can be effectively absorbed and buffered; and radial deformation of the shaft hole of the rotor punching sheet under high-speed rotation is avoided.

The utility model discloses a safety detection device for gas cylinder water pressure front and back axial radial deformation, which comprises a detection tool main body and a gas cylinder body arranged in the detection tool main body, the upper part of the detection tool main body is connected with an upper cover through a fixing assembly, and the top of the upper cover is provided with an adapter which can be connected with a gas cylinder. The utility model relates to the technical field of gas cylinder detection, according to the detection device, the gas cylinder is completely placed in the detection tool main body, the gas cylinder in a high-pressure state does not need to be close to, and compared with traditional manual measurement, the detection device has the advantages that the detection efficiency is greatly improved, and the detection cost is reduced. The safety risk faced by operators is greatly reduced, and the safety and reliability of the measurement process are improved; the linear displacement sensor is matched with the digital display instrument for measurement, the measurement precision can reach 0.01 mm, data of axial radial deformation before and after water pressure of the gas cylinder can be accurately obtained, and a reliable basis is provided for safety assessment of the gas cylinder.

A grounding brush assembly includes a grounding brush and a mounting plate for the brush, the brush being provided with a plurality of conductive fibers and with a support inside of which the conductive fibers are housed. The mounting plate is secured to the support and is provided with a radially extending main body having an axially extending centering portion and retaining tongues for axially holding the support. The assembly also includes bearing portions, formed as radial deformations of the centering portion, in order to axially hold the support.

The embodiment of the application discloses a large ring part processing deformation multi-sensor monitoring compensation method; the embodiment of the application can generate a feedforward compensation amount based on the radial deformation amount of the stress mutation region in the surface radial deformation appearance time obtained by prediction when processing a large ring part, then generate a feedback compensation amount according to the deviation between the expected processing contour of the large ring part and the actual radial position data, generate a total compensation amount according to the feedback compensation amount and the feedforward compensation amount, and adjust the motion trail of the cutter on the processing machine tool according to the total compensation amount, the expected processing contour of the large ring part, the shape tolerance and the position tolerance. Thus, the embodiment of the application can compensate the deformation caused by stress release in real time during the processing of the large ring part, and improve the compensation efficiency.

The present application relates to a kind of full metal sealed adsorption tower flow guide support device with heat compensation structure, belong to adsorption tower technical field.The full metal sealed adsorption tower flow guide support device includes the support device fixed ring welded to adsorption tower head, the flexible support leg of elastic airflow distribution plate and bottom being provided with the flexible support leg being deformed along axial / radial by metal bellows seal ring and support device fixed ring flexible connection.Elastic airflow distribution plate adopts double-layer corrugated metal plate structure, and flexible support leg is Ω-shaped metal elastic structure and is connected with the inner wall of head by sliding guide rail.Full metal sealing system includes metal bellows seal ring and wedge-shaped metal gasket.Strengthened flow guide structure includes cyclone suppression rib and variable-diameter flow guide hole.The present application can solve the problem of adsorption tower sealing reliability under high temperature and high pressure working condition.

The invention relates to the technical field of copper pipe cutting machine tools, and discloses a copper pipe cutting device and method for air conditioner accessory machining, the copper pipe cutting device for air conditioner accessory machining comprises a pipe cutting machine tool, and the two sides of a pipe cutting point of the pipe cutting machine tool are each provided with a pipe head back pressure mechanism; the pipe head back pressing mechanism comprises a pipe fixing base, a pipe pressing arm, a follow-up rotating box, a rotating driving assembly and a diameter reducing assembly. The two fixed pipe seats are oppositely arranged, a gap between the two fixed pipe seats is matched with the thickness of the cutting knife, a pipe passing opening is formed in the center of each fixed pipe seat, and each fixed pipe seat is rotatably arranged in the corresponding pipe passing opening along with the rotating box; a plurality of pipe pressing arms penetrate through the follow-up rotating box and are arranged in a radial sliding mode, the inner ends of the pipe pressing arms are provided with pipe grinding beads, and the outer ends of the pipe pressing arms are jointly connected through a diameter control wire in a penetrating mode; the pipe head back-pressing mechanisms are arranged on the two sides of the pipe cutting point, when the cutting knife presses downwards, the pipe grinding balls on the pipe pressing arm abut against the outer wall of the copper pipe through the diameter reducing assembly, radial supporting is formed, radial deformation of the copper pipe caused by cutting force is effectively counteracted, and the cutting quality is remarkably improved.

Deformation of the member covering the side surface of the rotor core in the radial direction can be suppressed.SOLUTION: A rotor of a rotary electric machine in which an outer peripheral surface of the rotor and an inner peripheral surface of a stator are coaxially arranged includes a plurality of sub rotors stacked in an axial direction of the rotary electric machine, and each of the sub rotors included in the plurality of sub rotors includes a sub rotor core, a cylindrical portion covering a circumferential side surface of the sub rotor core, and a flange portion covering at least a part of an axial end surface of the sub rotor core.SELECTED DRAWING: Figure 1

The application provides an elastic gasket and a preparation method and a composite silica gel force bearing pad and a preparation method, and relates to the technical field of silicone rubber. The preparation method provided by the application comprises the following steps: arranging a mold core with a fiber braided tube on the surface in a radial direction to obtain a fiber composite array; and compounding the fiber composite array with a silicone rubber material, and performing mold pressing vulcanization, and then removing the mold core to obtain an elastic gasket. When the elastic gasket prepared by the application bears a compression load, the fiber braided tube resists the radial deformation of the elastic gasket, so that the compression strength and the rigidity of the gasket are effectively improved, and the high modulus of the fiber braided tube can promote the rapid rebound of the gasket, and can optimize the energy absorption and release of the elastic gasket in the compression process.