2009 results about "Tapered roller bearing" patented technology

A setting gauge (G) determines the thickness of a spacer (22) which gives the correct setting for a pair of tapered roller bearings (B1, B2) that are mounted in opposition to accommodate relative rotation between machine components (S, H). The gauge has a base (50) which at one end fits against a surface (12) to which the spacer is to be applied, and at its other end holds one of the races (32) of the bearing (B2) remote from the other race (30) which remains in its operating position. In addition, the gauge has a pair of gauge elements (52, 54), one of which fits against a conical envelope along the remote race and the other of which fits against an identical conical envelope on the race which remains in its operating position, in effect, projecting the conical envelope defined by the in-place race out of the bearing to a remote location so that measurements may be taken from the bearing. The race which is remote during the measurements has a cylindrical surface (48) which is configured to fit another cylindrical surface (10) on one of the machine components (H) with an interference fit, and the gauge also measures the diameters of the two cylindrical surfaces so that the magnitude of the interference fit may be ascertained and its effect on the bearing compensated.

An epicyclic gear system (A) includes a sun gear (2), a ring gear (4) located around the sun gear, planet gears (6) organized in two arrays between the sun and ring gears, and a carrier (8) having walls (14) located beyond the planet gears and flexpins (24) that project from the walls into the planet gears. Each flexpin includes an inner pin (30) provided with a flange 36 that is secured to the wall from which the inner pin projects, thus cantilevering the inner pin from the wall, and a sleeve (32) that is cantilevered from the opposite end of the inner pin and extends back over the inner pin, thus providing a double cantilever. Between the sleeve of the flexpin and the planet gear for that flexpin is a double row tapered roller bearing (26). The planet gears on the one array may be offset angularly with respect to the planet gears of the other array.

A hub unit bearing assembly includes a tapered roller bearing including an inner race (3), an outer race (4) having a fixture (4a) defined therein so as to extend radially outwardly therefrom, and a multiplicity of rollers (5) retained in a circumferential row by a cage (6) and rollingly positioned between the inner race (3) and the outer race (4). A hub (2) including the inner race (3) on a portion of an outer periphery of said hub (2). The inner race (3) is a member either integral with the hub (2) or separated from the hub (2). The cage (6) rotatably accommodates the respective rollers (5) in the form as retained thereby prior to assemblage of the cage (6) with the rollers (5) into the roller bearing. The cage (6) and the rollers (5) are, after the rollers have been mounted in the cage (6), inserted in between the inner race (3) and the outer race (4).

The invention discloses a single axle bogie transmission of a straddle-type single rail vehicle. The transmission is arranged on a bogie frame and used for realizing that walking wheels are driven to walk through the torque of a motor. The transmission comprises the motor, a brake disc, a walking wheel assembly and a reducer. The motor and the brake disc are transversely arranged on the fixed end of an axle, and the walking wheel assembly and the wheel reducer are transversely arranged on the cantilever end of the axle; a walking wheel support shaft is unidirectionally fixed by adopting double fulcrums, one end of the support shaft is fixed on the bogie frame, the other end of the support shaft is suspended, the fixed end of the support shaft is supported by a self-aligning roller bearing, and the cantilever end of the support shaft is supported by a group of tapered roller bearings installed in an axle box in the reverse direction. Longitudinal symmetric planes of the walking wheels are coincided with longitudinal symmetric planes of track beams. The single axle bogie transmission of the straddle-type single rail vehicle has the technical beneficial effects that the bogie is compact in structure, tires are disassembled and assembled easily, and the curve passing performance of the cantilever beam straddle-type single rail vehicle is met.

An inter-axle differential gear assembly includes a first side gear driven by an input shaft, a plurality of inter-axle differential pinion gears in meshing engagement with the first side gear, and a second side gear in meshing engagement with the inter-axle differential pinion gears. The second side gear includes a gear body having a front face and a rear face positioned opposite of the front face. At least one channel, formed within the gear body, extends between the front and rear faces. Lubricating fluid is pumped through the channel to lubricate the inter-axle differential gear assembly. A tapered roller bearing is positioned adjacent the rear face of the second side gear. A seal, positioned between the tapered roller bearing and the rear face of the second side gear, forms a sealed fluid cavity. Rotation of the tapered roller bearing generates a pumping action that pumps the lubricating fluid through the tapered roller bearing, into the sealed fluid cavity, and into the channel.

A tapered roller bearing having its rollers arranged in two rows within an outer race and around an inner race contains a sensing device that radiates signals which reflect conditions within the bearing. In one embodiment, the outer race is unitary and the sensing device is wireless and self-powered and includes a mounting ring that is fitted to the outer race between the raceways along which the rollers roll. The ring has embedded within it several sensors for monitoring bearing conditions such as temperature and vibrations. The ring also contains a radio transmitter, a microprocessor to which the sensors are connected, and a power supply for producing the electrical energy required to operate the processor and the transmitter. The electric power is generated by means of electromechanical energy conversion using permanent magnets, armature winding and a target wheel that is captured between and rotates with the two cones. The transmitter converts conditions registered by the sensors and processed by the processor into radio signals which are received externally from the bearing. In another embodiment the unitary outer race has a groove which opens inwardly between the two rows of rollers, and the sensors, radio transmitter, processor, and power supply are located within the groove. In other embodiments the inner race is unitary and the sensors, radio transmitter, processor and power supply are carried by the inner race.

Provided is a power generating wind turbine in which parts and compoments installed in or on a nacelle are made smaller and lighter and maintenance is facilitated. A main shaft 11, a gear-box speeding up rotation of the main shaft 11 and a generator 13 driven by output of the gear-box 11 are provided on a nacelle bed plate 6. The main shaft 11 is connected to an input shaft 12a end of the gear-box 12 via a double-row tapered roller bearing 16. The main shaft 11 is supported to be fitted to a wall portion W1 of the nacelle bed plate 6 with the double-row tapered roller bearing 16 being interposed therebetween. The main shaft 11 is formed in an annular shape having its outer diameter D1 made larger than its axial directional length L1.

The invention discloses a production process for a conical roller bearing. The production process includes the following steps of the production technological process of an outer ring, the production technological process of an inner ring and the step that after the inner ring and the outer ring are sent to an assembly workshop, the sizes of an inner ring roller path and an outer ring roller path are grouped, assembling, final inspecting, typewriting, rust protecting and packaging are conducted, and then the conical roller bearing is put in storage. The production technological process of the outer ring includes the steps of forging, lathing, thermal treatment, double end face grinding, outer diameter part coarse grinding, outer diameter part fine grinding, outer roller path coarse grinding, outer roller path fine grinding, outer roller path super-finishing, outer diameter coping and demagnetization cleaning and the step of sending the outer ring to an assembly workshop. The production technological process of the inner ring includes the steps of forging, lathing, thermal treatment, double end face grinding, inner diameter coarse grinding, inner roller path coarse grinding, large flange coarse grinding, inner roller path fine grinding, large flange fine grinding, inner diameter fine grinding, large flange super-finishing, inner roller path super-finishing and demagnetization cleaning and the step of sending the inner ring to the assembly workshop. The production process has the advantages that the complex machining procedures of an ordinary process are simplified, bearing machining quality is improved, production efficiency is greatly improved, and production cost is saved.

Provide is an apparatus for detecting tapered roller bearing rolling element upside-down mounting and missing mounting. The apparatus is composed of a conveying mechanism, an image acquisition module, a central processing module, a position detection mechanism and an abnormity sorting mechanism. The position detection mechanism comprises a shooting proximity switch at the shooting position and a sorting proximity switch at the sorting position on the conveying mechanism. The abnormity sorting mechanism is provided at a sorting position. The annular light source of the image acquisition moduleand a camera are provided at the shooting position. The blanking baffle plate of the abnormity sorting mechanism is provided at the gap of the sorting position. The blanking baffle plate is connectedwith the abnormity sorting cylinder. The detection method is that the camera shoots the image information of the bearing to be detected; the information is transmitted to a central processing module for processing and analyses; the detected bearing whose rolling element is missing or is upside-down mounted is eliminated by the abnormity sorting mechanism. The detection apparatus is characterized by simple operation, practicality and high efficiency and strong versatility. The detection precision is improved, an automatic continuous detection is realized, abnormal detected bearings can be rapidly and accurately eliminated and the efficiencies of detection and sorting are improved.

A roller bearing for use in transmission cases (1) made from aluminum alloy or other lightweight materials where the transmission contains a steel shaft (2) which is supported in the case on two directly mounted tapered roller bearings (8,9) so that the two bearings (8,9) confine the shaft (2) both radially and axially. To compensate for the differences in expansion and contraction between the case and the steel shaft (2) as the transmission or transaxle experiences variations in temperature, a race (20) of at least one of the bearings is fitted with a compensating ring (34) having a coefficient of thermal expansion greater than that of the case (1) or shaft (2). As a consequence, the bearings operate at a generally uniform setting over a wide range of temperature variations.

A four-row tapered roller bearing is incorporated in the clearance between the inner surface of a housing and the outer surface of a rolling roller. A pair of supporting members supporting sensor devices are fitted in and supported by a part of the inner surface of the housing in such a manner that they are opposed to the ends of outer rings of the four-row tapered roller bearing disposed close to the both axial ends thereof. The sensor devices each comprise a distortion gauge as a detecting portion and a first coil for transmitting as a wireless signal a signal obtained by processing an output signal outputted from the distortion gauge. A second coil for receiving the wireless signal transmitted by the first coil is retained on a part of a member other than the supporting members.

The invention discloses a conical roller bearing automatic feed and face recognizing machine. The conical roller bearing automatic feed and face recognizing machine comprises a feed device and a face recognizing system. The feed device comprises a circular feed rotary plate which is obliquely disposed relative to the horizontal face. A feed groove is formed at the bottommost end of the plate face of the circular feed rotary plate. The circular feed rotary plate continuously rotates to feed bearings into the feed groove. A guide groove is formed below the feed groove. A movable conveying belt is disposed below the guide groove. The face recognizing system comprises a face recognizing workbench, a pushing device, a recognizing device and face turning device, wherein the pushing device is used for pushing the bearing on the conveying belt into the face recognizing workbench and continuously pushing the same to move forwards, the recognizing device is used for recognizing the size of the upper end faces of the bearings, and the face turning device is used for turning the bearings into required states. The conical roller bearing automatic feed and face recognizing machine has the advantages that automatic feed and detection can be achieved, when the placing states of the bearings do not accord to preset states, the bearings can be turned automatically, state consistency of the bearings before grinding can be guaranteed, and automatic face reorganization is achieved.

The invention discloses a method for manufacturing an outer ring of a tapered roller bearing, comprising the following steps of: a: taking a material: setting the quality of the finished product outer ring as M, setting the outer diameter as D, taking a bearing steel pipe with the outer diameter of D1 as the raw material, taking the bearing steel pipe with the quality of M1 and meeting the condition that one half of D is less than or equal to D1 which is less than D, and M1 is equal to 2M plus M2 plus 2M3, wherein M2 is the margin of quality by cutting, and M3 is the margin of quality of single outer ring by grinding process; b: cold rolling: rolling on the bearing steel pipe taken in the step a for obtaining a combined blank of the outer ring; c. cutting: cutting the combined blank at the connecting ring for obtaining a single blank of the two outer rings; d: thermal processing; and e: finish machining: grinding the single blank of the outer ring. The proposal leads the outer ring of the tapered roller bearing to realize the cold rolling for shaping, has the advantages of small material loss, saved energy consumption, simple process, high production efficiency and the like, and simultaneously ensures the product quality.

A spherical outer diameter tapered roller bearing pillow block system (100) for supporting the rotating main shaft of a wind turbine. The bearing system is configured with a unitized construction and factory set preload bearing settings to facilitate installation and setup. A spherical outer diameter surface (114) is formed on the Outer race (116) of a tapered roller bearing assembly disposed about the rotating main shaft of the wind turbine. The bearing assembly is secured to a stationary support structure of the wind turbine through a pillow block housing assembly (102) providing a matching spherical housing scat (112) to form a ball and socket interface between the tapered roller bearing assembly (118) and the pillow block housing assembly (102). The ball and socket interface accommodates static and dynamic misalignments between the wind turbine main shaft and the supporting structure, while the bearing assembly (118) accommodates radial and axial loads.

The invention discloses a full-automatic assembling machine for tapered roller bearing inner components. The full-automatic assembling machine for the tapered roller bearing inner components comprises a workbench. A turnplate and a drive mechanism used for driving the turnplate to rotate are arranged on the workbench. A plurality of assembling stations are evenly distributed on the turnplate. A retainer feeding mechanism, a roller feeding mechanism, an inner ring feeding mechanism, a sorting mechanism and a pressing mechanism are distributed anticlockwise in sequence on the peripheries of the multiple assembling stations. Through the assembling machine, automatic assembling of the tapered roller bearing inner components is achieved, the labor intensity is relieved, the rejection rate is decreased, the production efficiency is greatly improved, and the production effectiveness can be improved.

The invention discloses a combined machining spindle unit of supersonic vibration assistant grinding-impulse discharge, which has the advantages of simple structure, convenient use and realization of efficient, stable and reliable combined machining, and the like. The structure of the combined machining spindle unit is as follows: the unit comprises a shell, a spindle penetrates through the shell and is connected with a supersonic vibration machining device and a transmission pulley. The supersonic vibration machining device is provided with an electric spark pulse discharge machining and grinding device. A correction support sleeve is further arranged on the inner wall of the shell, and a tapered roller bearing is mounted on the inner side of the shell.