60results about How to "Avoid local deformation" patented technology

The invention provides an external assembly type tower crane anti-climbing device, and belongs to the technical field of tower crane anti-climbing. Comprising a plurality of frames, a plurality of mounting plates are fixed to the side faces of the frames, the adjacent frames are perpendicularly arranged, the mounting plates between the adjacent frames are vertically aligned, and the vertically aligned mounting plates are fixedly connected through screws. By arranging the frame, the panel and the round rollers, when the tower body has a certain height and an entrance for entering a control room is located on the side face of the tower body, the fence composed of the frame and the panel is fixed to the periphery of the tower body, and when a person wants to climb the tower body, due to the fact that the surface of the panel is smooth and the feet of the person have no acting points, the person cannot climb the tower body, and the safety of the person is improved. When a person binds a hook on a rope and hangs the rope on the tower body, the person wants to climb the tower body with the help of the rope at the moment, and when the feet step on the panel, the round roller rotates, so that the feet of the person have no leveraging point, the person is further prevented from climbing the tower body, and safety protection for the person is achieved.

This utility model relates to the field of pipe processing technology and discloses an inlaid roller mold for preventing damage to the surface of pipe fittings during bending. The mold includes a base, a mounting plate fixedly mounted on the top of the base, an L-shaped plate fixedly mounted on the top of the mounting plate, a cylinder fixedly mounted on the top of the base, two bending rollers symmetrically arranged on the front side of the L-shaped plate, an adjustment component on the rear side of the L-shaped plate, and a lifting component at the output end of the cylinder. This utility model avoids sliding friction between the mold and the pipe fitting by using rollers to contact the pipe fitting surface, thus preventing surface damage. Furthermore, the rollers act as guides during bending, ensuring the pipe fitting moves along a preset bending path. The rollers also distribute the concentrated pressure during bending to multiple contact points, preventing localized deformation or damage to the pipe fitting. The distance between the two bending rollers can be adjusted to accommodate different bending sizes.

The utility model discloses a kind of automobile A column reinforcing member based on lightweight design, it is related to the technical field of automobile parts, including external steel body, the inside of external steel body is equipped with main body reinforcing component, the inside of main body reinforcing component is equipped with energy-absorbing member, the side of external steel body away from the surface of main body reinforcing component is equipped with sound insulation cotton.The utility model can make the internal structure of automobile A column more stable by main body reinforcing component, reduce the deformation due to collision, protect front compartment safety, by energy-absorbing member, local shock wave can be offset, ensure that front compartment living space is not deformed, while the material density of energy-absorbing member is smaller, the overall weight of A column can be reduced, so as to reduce the weight of entire vehicle body, reach the effect of reducing fuel consumption, while external steel body is fixed together by hinge hole bolt and angle steel bolt, compared with general welding mode, when maintaining, avoid cutting A column, cause stress concentration of A column, affect the safety of overall A column structure.

The invention relates to the technical field of aluminum alloy liquid cooling plate machining, in particular to an aluminum alloy liquid cooling plate efficient precision stamping forming device and a working method thereof, and the aluminum alloy liquid cooling plate efficient precision stamping forming device comprises a base, a mold assembly, a temperature control system and an auxiliary supporting mechanism. The die assembly achieves high-precision forming through the micro air bag and the runner forming unit, the temperature control system adjusts the temperature of cooling liquid so as to optimize temperature field distribution, and the auxiliary supporting mechanism adapts to different thickness machining requirements. The working method comprises the steps of pressure and temperature real-time monitoring, runner forming, quality detection and the like. The plate can be effectively prevented from being deformed or warped, the runner is prevented from being collapsed or blocked, the forming precision and the cooling performance are improved, and the requirements for efficient heat dissipation and light weight of the power battery liquid cooling plate are met.

The application discloses a motor shell anti-deformation processing device, which comprises a base, two symmetrical punching assemblies slidingly arranged on the base, and a clamping assembly arranged between the two punching assemblies. The clamping assembly comprises two supporting frames and a clamping cylinder. One of the supporting frames is slidingly arranged on the base and connected with the telescopic end of the clamping cylinder. The supporting frame is fixed with a tension cylinder and a tension piece. The tension piece comprises a plurality of split supporting molds and a plurality of tension blocks. When the tension cylinder is driven, the split supporting molds are first expanded radially outward to form an avoiding gap between adjacent split supporting molds, and then the tension blocks are moved radially through the gap until the tension blocks and the outer walls of the split supporting molds jointly form a complete cylindrical surface and abut against the inner wall of the motor shell. When the reverse action is performed, the tension blocks are first retracted, and then the split supporting molds are contracted radially inward. The application realizes large-area rigid support on the inner wall of the shell before drilling, effectively inhibits plastic deformation around the hole, and improves processing efficiency and quality.

The utility model discloses an elastic member suspension tension and compression testing device, which relates to the technical field of tension and compression testing devices and comprises a base, a fixed seat is fixedly connected to the left side of the top of the base, a central controller is fixedly connected to the rear side wall of the fixed seat, and fixed frames are fixedly connected to the tops of the fixed seat and a movable sliding seat. Pressure compensation clamping assemblies are arranged in the two fixing frames, and a testing assembly is arranged on the right side of the top of the base. According to the utility model, through the arranged pressure compensation clamping assembly, pressure adjustment can be carried out according to a pressure signal fed back by a pressure sensor, and the clamping force of the elastic member suspension is ensured to be within a proper range, so that the reliability of test data is improved; the device can accurately control and adjust the magnitude of the applied tension or pressure to meet different test requirements, so that the performance of the elastic part suspension under different tension and pressure conditions is accurately evaluated.

The invention belongs to the technical field of reinforcing steel bar straightening, and discloses a reinforcing steel bar straightening device for civil engineering construction, which comprises a fixed bracket, a driving assembly is arranged at the upper end of one side of the fixed bracket, a striking assembly is fixedly mounted on the top surface of the fixed bracket, and a connecting assembly is arranged on one side of the top surface of the fixed bracket. A straightening assembly is arranged in the middle of the top face of the fixing support, the connecting assembly comprises a rotating unit, and an abutting piece is fixedly installed at the top of the rotating unit. Through cooperation of a limiting ring, a connecting rod and other structures, a moving rod moves towards the position close to the connecting rod, a striking unit rotates, when an abutting piece does not abut against the moving rod, the striking unit continuously swings to impact a second straightening piece, a large amount of energy can be instantly released through impact, scratches and damage to the surface of a reinforcing steel bar are reduced, and the service life of the reinforcing steel bar is prolonged. And the good surface quality of the material is kept, and the effects that the material is not prone to deformation or fracture when stressed, and the fracture risk during fatigue is reduced are achieved.

The utility model discloses a bearing seat and tracking support relates to photovoltaic power generation technical field, and this support includes main beam, bearing seat, photovoltaic bearing and non -driven stand. Bearing seat is enclosed by the stamping cover plate and stamping bearing base of mutual adaptation, and the inside holds photovoltaic bearing, and the stamping bearing base is combined by two same stamping sub -units, and the bottom is connected with non -driven stand. Photovoltaic bearing is integral type spherical high molecule structure, and the sleeve joint is in main beam outside, and its spherical outer contour is adapted with bearing seat inner wall, can realize main beam angle adjustment, and the stamping sub -unit has H type and Y type two, is connected with non -driven stand wing plate or directly with waist board through corbel adapter, and the bearing seat axial both ends are equipped with flanging, and the base is equipped with the strip. The utility model discloses through stamping structure reduces the cost, shortens the period, and realizes flexible angle -adjusting with the help of spherical bearing, and the adaptability is strong, is applicable to large -scale photovoltaic power station.

This utility model provides a door reinforcement structure, a door assembly, and a vehicle, belonging to the field of automotive door technology. It includes a first outer panel reinforcement plate, a first force transmission structure, a second outer panel reinforcement plate, and a second force transmission structure. The first force transmission structure connects the first outer panel reinforcement plate and the inner door panel along the left-right direction of the vehicle body, and is located at the lower edge of the window frame of the inner door panel near the corner of the window frame. The second outer panel reinforcement plate is located below the first outer panel reinforcement plate, and at least one end is connected to the inner door panel. The second force transmission structure connects the first and second outer panel reinforcement plates along the up-down direction of the vehicle body. The inner door panel, first force transmission structure, first outer panel reinforcement plate, second force transmission structure, and second outer panel reinforcement plate of this utility model form a force transmission channel, which can distribute the force of opening and closing the door from the corner of the window frame to a larger area, reducing stress concentration at the corner of the window frame, avoiding local deformation, and improving the overall rigidity of the door assembly.

The utility model relates to a urine collector, and belongs to the technical field of medical auxiliary instruments. Comprising a urine collecting bottle and a urine collecting funnel, the urine collecting funnel is fixed to the upper portion of the urine collecting bottle in a detachable connection mode, and a flow dividing assembly and an air guide pipe are arranged in the urine collecting funnel. The shunting assembly comprises at least one separator, and the separator is arranged at the bottom of the urine collecting funnel and is provided with at least one shunting gap communicated with the urine collecting bottle and the urine collecting funnel; one end of the air guide pipe penetrates through the shunting assembly and extends into the urine collecting bottle, and the other end of the air guide pipe is communicated with the outside and used for balancing air pressure inside and outside the urine collecting bottle; when the liquid level of the urine in the urine collecting bottle is in contact with the bottom end of the gas guide tube, the urine is prevented from continuously flowing into the urine collecting bottle through the flow dividing gap by virtue of a pressure difference. By means of the urine collecting device, the problems that in the prior art, a urine collecting device is complex in structure and large in operation difficulty are solved.

The invention relates to a high-strength aluminum alloy residual stress testing device and method in the technical field of material mechanical property testing, the high-strength aluminum alloy residual stress testing device comprises a rack, a clamping assembly used for clamping a sample and a cutting assembly used for cutting the sample are arranged on the rack, and a plurality of strain gauges are arranged in the middle of the bottom face of the sample at intervals in the cutting direction; according to the invention, the second jacking piece is arranged to apply accurate jacking force at the trisection position of the sample in the length direction, so that static deformation of the sample caused by self weight is effectively compensated, and systematic errors of the gravity on a measurement result are eliminated from the source; compared with a mode depending on follow-up algorithm compensation or tedious early-stage calibration in the prior art, the method does not need complex calculation or manual intervention, the operation process is simplified, the technical requirements for operators are reduced, a detector system is simpler and more reliable, and the repeatability and accuracy of testing are improved.

The production line comprises a fiber material stirring system, a paving base plate conveying system, a lower-layer fiber material paving machine, an upper-layer fiber material paving machine, a pre-pressing machine, a stacking machine, a sandwich plate conveying and gluing system, a cold pressing machine, a plate dividing machine, a paving base plate returning system and a finished product processing system. The fiber material stirring system provides fiber materials to the upper-layer fiber material spreading machine and the lower-layer fiber material spreading machine through a fiber material conveying belt machine. The lower-layer fiber material spreading machine, the upper-layer fiber material spreading machine, the pre-pressing machine and the stacking machine are respectively arranged above the paving base plate conveying system at intervals along the conveying direction of the paving base plate conveying system; and the laminboard feeding and gluing system is arranged between the lower-layer fiber material spreading machine and the upper-layer fiber material spreading machine. The utility model has the advantages of high finished product quality, few production procedures, simple process, greatly shortened preparation period, high production efficiency and low cost.

The utility model relates to a technical field of case, put forward a kind of carbon fibre case with good pressure resistance, including case body, including blocking frame, blocking frame is connected on the inner side wall of case body, the front end of case body is rotatably connected with cabinet door, the inner side wall on the upper side of case body is rotatably connected with multiple support bars, the inner side wall on the side of case body is rotatably connected with multiple rotating plates, rotating plate is connected with strip groove in one end close to support bar, strip groove is provided with sliding slot in one end close to support bar, support bar is equipped with cylinder in one end close to strip groove, one end of cylinder is connected with circular blocking piece, one end of circular blocking piece is connected with circular seat, the inside of circular seat is slidably connected with sliding element, one end of sliding element is connected with locating block, spring is equipped between sliding element and circular blocking piece, locating hole is provided on rotating plate, to avoid equipment partial deformation when being subjected to heavy pressure on top, reach the purpose of improving equipment stability.

This invention provides a welding machine for assembling and splicing precision castings, relating to the field of welding machine technology. It includes a welding frame with a positioning area and adjustment areas on both sides of the positioning area. A welding robot is mounted on the side of the welding frame via a welding machine mounting base. The machine also includes a longitudinal adjustment frame, a longitudinal abutment component, a parallel positioning component, and an adaptive clamping component. Longitudinal adjustment frames are slidably mounted on both sides of the welding frame, and transverse adjustment frames are slidably mounted on the longitudinal adjustment frames. A longitudinal abutment component is mounted on the side of each transverse adjustment frame away from the positioning area. A parallel positioning component is installed within the positioning area, and an adaptive clamping component is mounted on each transverse adjustment frame. This invention provides a welding machine for assembling and splicing precision castings, solving the technical problem in related technologies where rigid clamping structures are difficult to adapt to the irregular shape of precision castings, leading to easy scratching of the castings during clamping and difficulty in maintaining stable clamping.

The utility model relates to a kind of long circular coil straightening tool in coil straightening technical field, including bearing table, X-axis straightening assembly and Y-axis straightening assembly, the bearing table middle part is equipped with the X-axis let room slot that passes through up and down and the Y-axis let room slot that passes through up and down, the X-axis let room slot is equipped with two along Y-axis let room slot symmetry;The straightening assembly includes slide rail, the slide rail each section has a pair of synchronous and opposite moving direction shaping part, and a pair of shaping part is connected with movable pad by elastic member, to support the area of coil corresponding let room slot;The utility model is equipped with X-axis straightening assembly and Y-axis straightening assembly, and the shaping part of a pair of synchronous opposite moving direction driven by combination bidirectional screw rod, the inner ring and outer ring of coil can be synchronously pressed and straightened;Effectively solve the problem that coil inner ring cannot be shaped in prior art, avoid coil installation difficulty caused by inner ring warping, wrinkle or protrusion.

This utility model discloses a busbar trunking cutting and shearing device, applied in the field of power distribution equipment processing technology. It includes a trunking plate B, with side plates B slidably connected to both sides of the inner wall of the trunking plate B. A connecting rod B is bolted to opposite sides of the two side plates B. Sliding sleeves are bolted to the top and bottom of the connecting rod B. This utility model uses concentric clamping to evenly distribute cutting stress, avoiding twisting or local deformation of the busbar trunking due to unilateral force, maintaining the geometric accuracy of the conductor arrangement, effectively offsetting vibrations generated by the contact between the tool and the material during cutting, reducing the risk of chipped edges, and avoiding tilted or stepped cross-sections caused by workpiece offset. Timely separation avoids slippage or tipping of the cut piece due to gravity and mechanical stress, reducing secondary injuries such as pinching and collisions. The separation action reduces continuous friction between the cutting surface and the tool, preventing the expansion of burrs and extending the tool's service life.

The invention relates to the technical field of dump trucks, in particular to a high-adaptability dump truck carriage structure, which comprises a frame main body, a beam body, a carriage body, a connecting beam, a cross beam, a connecting beam and a carriage body, the carriage body is arranged above the frame and comprises a bottom plate and side walls arranged on the bottom plate, the bottom plate is connected with the bearing beam and the main beam, and the bottom plate is provided with a pushing channel corresponding to the mounting cavity; the pushing module is arranged in the mounting cavity and extends into the pushing channel from the mounting cavity, and the pushing module comprises a lifting assembly and a bearing roller set; the conveying module is arranged above the bottom plate and comprises a conveying belt set and a push plate assembly, the lifting assembly drives the bearing roller set to ascend and descend, the bearing roller set partially extends to the position above the bottom plate, and then the bearing roller set pushes the conveying belt sets in different areas. The high-adaptability self-unloading carriage structure can adapt to different loading conditions, the friction force during self-unloading is reduced, and the high-adaptability self-unloading carriage structure has good application value.

The present application relates to the technical field of welding device, a kind of big pipe diameter electric power steel pipe tower automatic assembly butt welding device, comprising: device base body, clamping structure, welding mechanism and drive mechanism.Device base body is used to support the support part of the segmented tower cylinder to be welded;Clamping structure is movably assembled in device base body relative to support part;Welding mechanism is movably assembled in device base body;Welding mechanism has welding executor, and welding executor is rotatably assembled on welding mechanism about the axis of welding mechanism;Drive mechanism is installed in device base body, and drive mechanism includes transmission assembly and drive device, the input end of transmission assembly is drivingly connected with drive device, and the output end of transmission assembly is respectively drivingly connected with clamping structure and welding mechanism;Drive device drives clamping structure and welding mechanism to move synchronously by transmission assembly, so that the axis of welding mechanism and the axis of tower cylinder clamped between clamping structure and support part keep coincident.It improves the stability of welding quality.

The utility model discloses a sheet metal part positioning bending device, including device main part, setting on the bending assembly and positioning assembly of device main part, the bending assembly includes the bending groove and with the lower pressure mechanism of bending groove correspondence, and the positioning assembly includes the positioning baffle and support plate respectively setting in the both sides of bending groove, and the end surface of support plate is flush with the end surface of bending groove, and the both sides of support plate are provided with two sets of positioning shafts, and the positioning shaft is swing setting. The positioning baffle in scheme ensures the sheet metal part end positioning precision, avoids the sheet metal part along the length direction deviation when bending. The support plate is flush with the end surface of bending groove, eliminates the height difference of both junctions, prevents the partial deformation or surface indentation of sheet metal part after placing. The swing setting positioning shaft replaces the traditional manual holding positioning mode, reduces the safety risk of the hand of operating personnel being injured by the lower pressure mechanism, can continuously limit the top surface of sheet metal part, reduces the bending position deviation and angle fluctuation, and improves the bending precision.

The utility model belongs to the technical field of furniture production, and particularly discloses a furniture production cutting positioning mechanism which comprises two sets of supporting boxes, rotating rollers are rotationally connected to the two sides of the position between the two supporting boxes, a conveying belt is connected to the outer walls of the two rotating rollers, a material guiding assembly is connected to the lower portion of the position between the two supporting boxes, and the conveying belt is connected to the lower portion of the position between the two supporting boxes. The middle parts of the upper ends of the two supporting boxes are connected with supporting plates, the upper ends of the two supporting plates are connected with a top box, and the upper end of the inner wall of the top box is connected with an electric control sliding rail. Cutting deviation and material waste are effectively reduced, and the cutting quality, the yield and the production efficiency are remarkably improved.

This invention relates to the field of furniture metal frame processing and provides a CNC laser cutting device for metal frames. The device includes a limiting frame, which comprises a multi-stage drive frame and multiple multi-position limiting beams mounted on the multi-stage drive frame. These multi-position limiting beams are used to limit the metal sheet. Each multi-position limiting beam includes multiple unit limiting beams arranged in a straight line in an array. Each unit limiting beam includes an L-shaped guide block with a laterally adjustable position. A support plate with a longitudinally adjustable position is slidably mounted on the L-shaped guide block. An adjustable-height pressing plate is mounted on the support plate. This device achieves multi-point dispersed staggered limiting of the metal sheet based on overall limiting, flexibly responding to the disappearance of the limiting force at the cutting edge during cutting, ensuring flexible and real-time provision of limiting force at the cutting point of the metal sheet, and improving the stability of the metal sheet during the cutting process.

The utility model discloses a mould hoisting structure for a permanent magnet jack, which comprises a cross beam and a mould to be transported, and further comprises a hoisting reinforcing mechanism, the hoisting reinforcing mechanism comprises a second electric telescopic rod arranged on the cross beam, the fixed end of the second electric telescopic rod is provided with a connecting rod, and the fixed end of the second electric telescopic rod is provided with a clamping groove; the other end of the connecting rod is connected with a permanent magnet lifting module, an air bellow is arranged at the end, away from the connecting rod, of the fixed end of the second electric telescopic rod, and the air bellow and the permanent magnet lifting module act together. And the auxiliary protection mechanisms are arranged on the outer walls of the two sides of the cross beam. The mold hoisting structure for the permanent magnet jack has the technical effects that the adsorption effect is improved, magnetic force borne by all parts of an object to be transported is uniform, firm adsorption and safe hoisting are ensured, and meanwhile, local deformation or damage of a mold to be transported caused by uneven stress is also avoided.

The utility model belongs to mechanical or structure part static balance test technical field, concretely relates to airtightness detection mechanism for membrane electrode and airtight integrated machine using it, include: hydraulic drive position, detection position, pull rod guide pillar, pressure head traction plate, main hydraulic cylinder, upper pressure head, lower pressure plate seat, lower pressure plate, track assembly, pressure head traction plate swing joint in pull rod guide pillar, upper pressure head is connected in the downside of pressure head traction plate. The utility model through setting in pressure head traction plate, will main hydraulic cylinder and upper pressure head change into indirect connection, will lower pressure plate and multiple lower pressure plate seat contact fit, and track assembly sets up between two lower pressure plate seats, can maximize increase lower pressure plate and lower pressure plate seat contact area, reduce the pressure intensity of lower pressure plate bottom, make it can adapt 5Mpa's high pressure airtightness test, through the way of upper pressure head and lower pressure plate cover pressure to membrane electrode fixed, through blowing gas and detecting air flow fluctuation to judge whether there is gas leakage and then acquire airtightness.

The utility model discloses a belling device for carrying out discontinuous pattern embossing on laser coated paper. The belling device comprises a workbench, a feeding mechanism, a belling mechanism and a control panel, the control panel is electrically connected with electric control components of all the mechanisms in the device through wires, the feeding mechanism comprises an unwinding roller, a paper pressing roller and a feeding roller set, and the belling mechanism is located in the middle of the workbench and comprises a supporting frame, a belling air cylinder, an upper die assembly and a lower die assembly. The working table, the feeding mechanism, the belling mechanism and the control panel are combined for use, discontinuous patterns can be subjected to intermittent belling, overall deformation of materials is avoided, the embossing effect is effectively improved, and the production efficiency is improved. And quick-change magnetic fixing structures are adopted between the upper convex block and the mounting seat of the belling mechanism and between the lower concave plate and the supporting block of the workbench, so that when the embossed pattern is replaced, the upper convex block and the lower concave plate can be quickly replaced only by releasing electromagnetic adsorption, time and labor are saved, and the working efficiency is effectively improved.

This utility model relates to the field of foundation pit drainage technology, and more specifically, to a foundation pit drainage structure, comprising: a base platform, in the shape of a rectangular frame, disposed within the foundation pit; a foundation wall, vertically fixed to the base platform; four sets of water filter components, detachably disposed on the four inner sides of the base platform, each water filter component having a protruding portion, the protruding portion being hollow and having several water passage holes, and a connecting pipe portion on the upper side of each water filter component for connecting an external water pump; and four hollow connecting pieces, each communicating with the protruding portions of two adjacent water filter components. This utility model's foundation pit drainage structure aims to solve the problems of uneven drainage and easy clogging in existing foundation pit technologies.

The utility model relates to a kind of conveying stabilizing device for rubber steel wire material belt detection, for conveying and stabilizing rubber steel wire material belt, the conveying stabilizing device includes installation base, further include installation on the installation base and along the rubber steel wire material belt feeding direction sequentially set feeding mechanism, material belt stabilizing mechanism, discharging mechanism, the material belt stabilizing mechanism includes the roller located below the rubber steel wire material belt and the floating Y type double press wheel located above the rubber steel wire material belt, the roller and floating Y type double press wheel closely adhere to the rubber steel wire material belt.Compared with prior art, the utility model has the advantages of improving the stability, reliability and efficiency of rubber steel wire material belt continuous production.

The utility model relates to an anti-static padding device for gray fabric. The device comprises a base, a padding pool, a pressing and rolling seat and a top plate, a reciprocating mechanism is arranged on the top plate, a guide wheel and a water pressing wheel set are arranged on the front side and the rear side of the base respectively, a partition plate is further arranged in the padding pool, a pressing roller seat is arranged at the bottom of a soaking cavity, and a lower pressing roller is arranged on the pressing roller seat; a plurality of movable pressing roller seats are arranged on the bottom surface of the pressing and rolling seat at intervals, elastic parts are connected between the movable pressing roller seats and the pressing and rolling seat, upper pressing rollers directly facing the lower pressing rollers one by one are rotationally arranged at the bottoms of the movable pressing roller seats, a rain pipe system is arranged in the pressing and rolling seat, and the rain pipe system can drip finishing liquid into the soaking cavity. Under the driving of the reciprocating mechanism, the rolling seat can continuously move up and down in a reciprocating manner, so that the fabric is intermittently rolled by the two compression rollers, and the rolling and re-water absorption process can promote the finishing liquid to flow in gaps of deep fibers of the fabric, so that the fabric can be efficiently soaked, and the condition of incomplete permeation of the finishing liquid is avoided.

The invention discloses an elastic expansion sleeve clamp applied to turning of a lightweight differential shell and a using method of the elastic expansion sleeve clamp, and relates to the technical field of elastic expansion sleeve clamps. Comprising a carrying structure which is assembled with the end part in a lathe of the differential shell through a positioning bolt; and the driving source is arranged in the carrying structure and forms an insertion matching relationship with the carrying structure. The traction assembly and oil liquid circulation are introduced into the clamping assembly, the double effects of clamping and traction are achieved, a traction magnetic attraction rod is matched with a return spring, trace axial traction force can be applied to a shell in the clamping process, a workpiece automatically tends to a machining datum plane in the positioning process, the clamping precision is further improved, and meanwhile, the clamping efficiency is improved. An oil injection channel and an oil drainage channel arranged in the blocking ring column are communicated with the oil storage sleeve, closed lubricating oil circulation can be formed in the clamping mechanism, low-friction operation of a transmission part is kept, the service life is prolonged, and the automatic return and self-lubricating functions are achieved.

The utility model discloses a steam turbine shaft seal system which comprises a high-pressure cylinder, an intermediate-pressure cylinder, a low-pressure cylinder, an external shaft seal steam supply pipe, a steam supply pipeline and a steam exhaust pipeline, and two auxiliary steam supply branch pipes are arranged between the external shaft seal steam supply pipe and the steam supply pipeline and are respectively provided with an electric heating device and a cooling device. The external shaft seal steam supply pipe is provided with a temperature sensor and is electrically connected with the controller, and the auxiliary steam supply branch pipe is in linkage with the controller through an electric control valve. The system monitors the temperature of steam in an external shaft seal steam supply pipe in real time through a temperature sensor, when a boiler is started in a cold state to introduce low-temperature steam, a controller triggers an electric heating branch pipe to heat the steam, and deformation caused by sudden temperature drop of a steam supply pipeline and a shaft seal body is avoided; during normal operation, high-temperature steam is cooled and decompressed through the cooling branch pipe, overtemperature of a shaft seal body and bending of a large shaft are prevented, dynamic and accurate adjustment of the steam supply temperature and pressure of the shaft seal is achieved, potential safety hazards of a traditional system in the start-stop and operation stage are effectively eliminated, and the safety and economical efficiency of a unit are improved.

The utility model discloses a lithium battery lamination die cutting tab pneumatic flattening device, including horizontal adjustment horizontal shift support, base, the one side symmetry of horizontal adjustment horizontal shift support is opened as screw hole no.