35results about How to "Good centering performance" patented technology

The invention relates to a threading tube coupler of a wind generating set, which is provided with a left joint, a spring and a right part joint, wherein the end part of the front end of the left joint is in clearance fit connection with the end part of the rear end of the right part joint; the periphery of the left joint is provided with a stepped clamping groove; the spring is mounted in the stepped clamping groove; a blocking surface at the front end of the stepped clamping groove is lower than that at the rear end of the stepped clamping groove; one end of the spring is pressed against the blocking surface at the rear end of the stepped clamping groove; the other end of the spring is pressed against the end surface of the rear end of the right part joint; the outer periphery of the end part of the front end of the left joint is provided with a sliding key; and the inner peripheral surface of the right part joint is provided with a key slot matched with the sliding key. The threading tube coupler is expandable, so an input shaft of an electric generator and an output shaft of a speed increasing gearbox are convenient to install and disassemble by the coupler. The threading tubecoupler allows a left threading tube and a right threading tube to have certain eccentricity and higher eccentricity.

The invention discloses a variable speed control method for cooling table output roller beds. The cooling table output roller beds are sequentially grouped when conveying towards cold shears, and a control circuit of each group of roller beds is provided with a controller used for controlling the operation speed of a roller bed motor. The principle is simple, the transform difficulty is low, the cost is low, the labor intensity is small, the control way for the cooling table output roller beds is changed through frequency conversion, grouping and PLC analog quantity control technology, the control performance for the cooling table output roller beds is improved, the noise in the working environment is lowered, energy conservation and environmental protection are achieved, the improved cooling table output roller beds are stable and reliable in operation, and production efficiency is high.

The invention provides a novel spiral wheel type miniature pipeline detection robot and a using method. The novel spiral wheel type miniature pipeline detection robot comprises a robot body, and the robot body is of a sectional structure and comprises a front axle drive, a supporting part, a detection part and a rear axle drive; and the front axle drive is hinged to the detection part through a second universal joint coupler, the detection part is fixedly connected with the supporting part, and the supporting part is hinged to the rear axle drive through a first universal joint coupler. The detection robot is simple and reliable in structure and convenient to use, exploration work in a pipeline can further be completed, and problems existing in the pipeline can be detected in time.

The invention relates to a full-automatic reversible conveying belt aligning idler. The full-automatic reversible conveying belt aligning idler comprises an upper beam (4), a lower beam (5), rotating shafts (6) and a four-connecting bar mechanism (7), the upper beam (4) and lower beam (5) are connected through the rotating shafts (6), vertical rollers (1) are arranged at the top of the upper beam (4), baffle rollers (2) are arranged at the middle, idlers (3) are arranged at the lower part, the vertical rollers (1), baffle rollers (2), idlers (3), upper beam (4) and rotating shafts (6) are symmetrically arranged in the horizontal direction in a mode of using the vertical central line of the lower beam (5) as a symmetrical axis, and the bottoms of two rotating shafts (6) are connected through the four-connecting bar mechanism (7). When the belt deviates on the idler, the full-automatic reversible conveying belt aligning idler drives the upper beam to rotate by a certain angle, and reverse rotating force is exerted to the idlers at the two sides by means of the rotating shafts so as to enable the deviated belt to return to the original position.

The invention provides an automatic one-time all-steel forming machine which comprises a main unit and an auxiliary unit.The main unit comprises a tire body drum, a belt drum and a forming drum, the belt drum is arranged between the tire body drum and the forming drum, centers of the tire body drum, the forming drum and the belt drum are positioned on a same straight line, transferring rings are arranged by taking the straight line as a center line, and tire bodies reciprocate through the transferring rings.The auxiliary unit comprises a main feeding frame, a belt feeding frame and a tread feeding frame, the main feeding frame, the belt feeding frame and the tread feeding frame are connected to the tire body drum, the belt drum and the forming drum respectively, and the belt feeding frame and the tread feeding frame are positioned on the same side of the belt drum.The automatic one-time all-steel forming machine is high in production efficiency, and overall output per manshift is more than 170 and reaches a domestic leading and international advanced level; the machine is high in automation degree, the tire body drum and the belt drum only require one operator, full-automatic forming is realized at the forming drum, high product quality is achieved, and the automatic one-time all-steel forming machine is widely applicable to forming procedures of all-steel-cord radial tires.

The invention discloses an energy-saving ball mill which consists of a first hydrostatic bearing, a second hydrostatic bearing, a rotating body, hydrostatic bearing sealing covers, a local dust collector, a pinion and a transmission system, wherein hollow shafts at two ends of the rotating body are respectively arranged on the first hydrostatic bearing and the second hydrostatic bearing and are respectively covered by the two hydrostatic bearing sealing covers; the periphery of the rotating body is provided with a gearwheel meshed with the pinion; high pressure oil forms a lubricating oil film among the first hydrostatic bearing, the second hydrostatic bearing and the shaft neck of the hollow shaft of the rotating body, the rotating body can float, the lubricating oil film can be kept complete, and the liquid lubrication is completely realized; the bearing has high bearing capacity; when the rotating body generates small elastic bending deformation, the bearing bodies of the first hydrostatic bearing and the second hydrostatic bearing relatively rotate by a small angle around first pin shafts respectively, so that the thickness of the oil film is basically invariable along the axial direction; according to the corrugated lining plate in the rotating body, the abrasive action between the abrasive medium and mineral aggregate and between the mineral aggregate is enhanced; and moreover, according to the sealing covers and the local dust collector, the dust particles in the ball mill operating environment can be efficiently prevented from entering the operating space of the hydrostatic bearings.

The invention discloses a novel rotating base which comprises a shaft and a base. The shaft is connected with an upper cross beam of an alignment carrier roller in a welded mode, the base is connected with a lower cross beam of the alignment carrier roller in a welded mode, an angular contact bearing and a conical roller bearing are arranged between the shaft and the base in a vertically spaced mode, the upper portion of the base is nested in the lower portion of an opening hole in the upper cross beam, an O-shaped seal ring is arranged between the base and the nesting position of the upper cross beam, the part, on the lower end face of the conical roller bearing, of the shaft is sleeved with a gasket, the gasket is tightly pressed to the lower end face of the conical roller bearing through a nut, and a base end cover is connected to the bottom face of the base through fixing parts. The novel rotating base has the advantages that the angular contact bearing and the conical roller bearing are arranged between the shaft and the base, so that the shaft and the base are rotated flexibly; the O-shaped seal ring is arranged between the base and the upper cross beam, the seal performance is good, the alignment effect is good, and the service life is long.

The invention discloses a differential reducer, and belongs to the technical field of reducers. The differential reducer includes a box body, a gear reduction system and a lubrication system, whereinthe gear reduction system includes an intermediate shaft assembly, an input shaft assembly, a low speed output shaft assembly and a high speed output shaft assembly, a transmission gearwheel in the intermediate shaft assembly is partially placed in lubricating oil, the lubrication system includes a thin oil lubricating station, an oil distributor and a connector seat, the thin oil lubricating station is connected with the bottom of the box body and the oil distributor, oil outlets of the oil distributor communicate with the joints between each assembly and the box body and the connector seat correspondingly, and perforated oil tubes on the connecting seat are placed above gears on the low speed output shaft assembly and the high speed output shaft assembly. According to the differential reducer, the thin oil lubricating station provides fast circulating fluidity for the lubricating oil, the transmission gearwheel drives the lubricating oil to splash while stirring the lubricating oil,thus the heat dissipation performance of the differential reducer is improved, and the oil temperature can be effectively lowered.

The invention relates to a material conveying mechanism. The mechanism comprises a linkage opening and closing door mechanism, a conveying line and an automatic stopping mechanism. The linkage opening and closing door mechanism comprises an opening and closing door, a rotating shaft part, a material carrier and a connecting rod part; the opening and closing door is mounted through the rotating shaft part and can rotate around a rotating shaft of the rotating shaft part; the connecting rod part comprises a connecting rod; and the two ends of the connecting rod are connected to the material carrier and the opening and closing door correspondingly so that the opening and closing process of the opening and closing door and the in-out process of the material carrier can be linked. The two ends of the connecting rod are connected to the material carrier and the opening and closing door through self-aligning roller bearings respectively. The material carrier moves out of the opening and closing door and then is in butt joint with the conveying line so as to transfer the materials to the conveying mechanism. The automatic stopping mechanism is arranged on the material carrier and/or the conveying line so as to stop or allow conveying of the materials. The material conveying mechanism has the beneficial effects that opening and closing doors actions and feeding or discharging of the materials can be achieved through one driving device, the manufacturing cost is saved, and the fault occurrence rate of the mechanism is reduced.

The invention provides a suspended degassing device which is high in structural stability, has small vibration amplitude during the running process, effectively avoids sloshing of molten aluminum and guarantees the refining quality. The suspended degassing device comprises a frame, a graphite rotor, a gas blowpipe and a rotor driving device, wherein the graphite rotor is connected with the gas blowpipe through a connecting sleeve. The suspended degassing device is characterized by further comprising a guide rail, a lifting platform, a guide pillar and a lifting driving device, wherein a plurality of cross beams are arranged on the frame; the guide rail and the guide pillar are parallel to each other and are supported by the cross beams; two ends of the lifting platform are connected with the guide rail and the guide pillar in a sliding way respectively; a bearing block is fixed at the lower part of the lifting platform; the gas blowpipe and the bearing block are mounted in a matching way; and a driven wheel and an elastic support piece are arranged on the lifting platform.

The invention discloses a stirrer which comprises a motor, a clutch, a reducer, a stirring box, a stirring shaft, stirring knife blades, a first clamp coupling, a second clamp coupling, a front link double bearing pedestal and a rear link double bearing pedestal, wherein the stirring shaft consists of a stirring short shaft and a stirring long shaft; one end of the stirring short shaft is connected with a slow-speed shaft of the reducer by the first clamp coupling; the other end of the stirring short shaft is connected with a bearing bore of the front link double bearing pedestal; one end of the stirring long shaft is connected with the bearing bore of the front link double bearing pedestal by the second clamp coupling; the other end of the stirring long shaft is connected with a bearing bore of the rear link double bearing pedestal; the stirring long shaft is sleeved with a threaded protective sleeve; a stirring knife holder is welded on the threaded protective sleeve; the stirring knife blades are fixed on the stirring knife holder by bolts. The stirrer adopts a broken shaft structure, so that the deflection of the stirring shaft can be reduced effectively, the stirring shaft can be prevented from bending deformation, a curing degree of a stirred material is ensured, and a brickmaking effect is improved.

The invention relates to the technical field of material conveying equipment, in particular to a spiral conveyor hanging bearing. The hanging bearing comprises a bearing seat, a main shaft and two bearings; a shaft shoulder is arranged on the main shaft; the shaft shoulder is positioned at a central position on the bearing seat; the bearings are symmetrically distributed on two sides of the shaftshoulder; the bearings are tapered roller bearings; the shaft shoulder is used for spacing the two bearings and for bearing force exerted by the bearings in the axial direction; elastic check rings are further arranged on the main shaft and are for limiting inner races of the bearing; the elastic check rings are used for realizing axial limiting of the inner races of the bearings; and bearing endcovers are arranged on two sides of the bearing seat. The hanging bearing can better bear radial and axial load, rapid connection is realized, and service life of the hanging bearing is prolonged; andat the same time, the hanging bearing has good lubricating and sealing performance and prevents external materials from entering the inside of bearing covers.

The invention provides an anti-overturning jacking mechanism for a power transmission line tower. The anti-overturning jacking mechanism mainly comprises hydraulic cylinders, piston rods, U-shaped bolt plates, a jacking plate, a heat preservation layer, a limiting plate and a temperature sensor, wherein the hydraulic cylinders are installed on a bottom plate and a cement foundation through foundation bolts, the piston rods in the hydraulic cylinders are connected with the U-shaped bolt plates through cotter pins, the U-shaped bolt plates are connected with the jacking plate through bolts, and supporting legs of the power transmission line tower are installed on the jacking plate. When the power transmission line tower is inclined, the displacement of the supporting legs of the power transmission line tower is adjusted by adjusting the movement of the piston rods of the hydraulic cylinders. The mechanism acts on the bottoms of the four supporting legs of the power transmission line tower and solves the problem that the power transmission line tower cannot dynamically compensate or adjust itself when the foundation of the power transmission line tower is subjected to differential settlement at present.

The invention discloses a self-centering device for for pressing a cylinder sleeve into a wheel. The self-centering device for pressing the cylinder sleeve into the wheel comprises a rack; a bottom plate is arranged at the bottom of the rack; a top plate is arranged at the top of the rack; a flat plate is arranged on the bottom plate; a self-centering system is arranged on the flat plate; the self-centering system comprises a positioning column elastically connected to the flat plate; a hydraulic cylinder is arranged on the top plate; and a down-pressing hollow column is connected to a position, downward corresponding to a positioning column, at the output end of the hydraulic cylinder. According to the self-centering device for pressing the cylinder sleeve into the wheel in the scheme provided by the invention, the center centering performance when the cylinder sleeve is pressed into a wheel bolt hole can be improved, waste products generated by bolt hole material extrusion due to misalignment are reduced, and the press-fitting yield is increased.

The present invention discloses a novel support roller apparatus, which is characterized in that a support roller and a support roller shaft are connected by using a double row self-aligning roller bearing, support roller pressing covers are fixed on both end surfaces of the support roller through bolts, sealing of the support roller pressing covers and the support roller shaft is achieved through a polytetrafiuoroethylene filler and a filler pressing cover, the inner side wall of the support roller pressing cover is further provided with a skeleton type oil seal, double sealing of the support roller pressing covers and the support roller shaft is achieved, a fluorine rubber sealing ring is arranged between the support roller pressing cover and the support roller so as to achieve sealing of the support roller pressing cover and the support roller. With the arrangement, the novel support roller apparatus of the present invention is particularly suitable for complex work environments of rotation type sterilization kettles.