54results about How to "Avoid synchronous rotation" patented technology

There is a vehicle power transmission device in which a continuously variable transmission and a gear train are provided between an input shaft and an output shaft so as to be able to transmit torque between the input shaft and the output shaft, the gear train has at least one speed ratio that cannot be set by the continuously variable transmission. In the vehicle power transmission device, a forward-reverse switching mechanism is arranged along the same axis as an axis of the input shaft, a first clutch mechanism and a brake mechanism are provided, a second clutch mechanism is provided in a first torque transmission path that is routed from the input shaft to the output shaft via the continuously variable transmission, a third clutch mechanism is provided in a second torque transmission path that is routed from the output element to the output shaft via the gear train.

A spherical bearing with resin liner comprises an inner ring, an outer ring, an opening portion, a notched portion, and a resin liner portion. The inner ring has a convex spherical outer surface and a shape in which opposing end portions of a sphere are cut off, and the outer ring has a concave inner surface which faces the outer surface of the inner ring having a predetermined clearance therebetween. The opening portion is provided at the outer ring and has an inner diameter smaller than the outer diameter of the inner ring, and the opening portion communicates with a space surrounded by the inner surface of the outer ring. The notched portion is provided at an edge of the opening portion for inserting the inner ring into the outer ring, and the resin liner portion continuously fills the clearance and the notched portion.

A vehicle driving force control apparatus is configured to prevent co-rotation of the motor caused by rotation of a pair of wheels when a clutch connecting the wheels and the motor is released (disconnected). When the clutch is released, the motor is braked by short circuiting the armature. The motor is then braked again by setting the field current of the motor to 0 when the rotational speed of the motor reaches 0. After the clutch is released, a braking-direction field current is applied to the motor in accordance with the decreasing rotational speed of the motor such that the braking force is decreased as the rotational speed of the motor decreases.

The invention relates to a method and a control device for operating an internal combustion engine of a portable work device, said method having the following method steps: a) storing a starting ignition curve for specifying an ignition time after a startup time of the internal combustion engine and an operating ignition curve for specifying the ignition time in a speed range assigned to the nominal operation of the internal combustion engine, b) reading the current engine speed, c) reading at least one time value which indicates the time that has elapsed since a reference time, wherein the reference time can relate to the startup time of the internal combustion engine, and d) determining and / or initiating a switchover process from the starting ignition curve to the operating ignition curve on the basis of the current engine speed and the time value.

A novel lamp socket finding application with a type of increased protection, has a housing part (13) in which a one-piece elastomer sealing sleeve (20) is preferably rotatably held. The sealing sleeve (20) is at its lamp-side end preferably slightly radially compressible, while it is stiffer in the axial direction. As a result, it yields inward when axially pressed by the frustoconical inner side of the housing part (13). The one-piece construction of the sealing sleeve (20) from a single material, on the one hand, ensures a simple manufacture and, on the other hand, prevents a faulty mounting caused by slipped seals or the like.

The invention relates to the field of casting processing, in particular to a precision processing device of a formed electric motor alloy shell. The precision processing device of the formed electricmotor alloy shell comprises a bracket, the top of the bracket is fixedly connected with a fixed slot, first telescopic frames are symmetrically inserted on the inner side of the fixed slot, second telescopic frames are symmetrically inserted on the inner side, located above the first telescopic frames, of the fixed slot, and the first telescopic frames and the second telescopic frames are arrangedin a staggered mode. One ends of the first telescopic frames and the second telescopic frames are fixedly connected with clamping plates, the sides of the clamping plates are fixedly connected with aplurality of first scraping strips, one ends of the first telescopic frames and the second telescopic frames inserted in the fixed slot are fixedly connected with first springs, a telescopic groove is fixedly connected to the bracket and located at the bottom of the fixed slot, a second spring is inserted in the telescopic groove, and a telescopic rod is inserted in the telescopic groove and located at the top of the second spring. The precision processing device of the formed electric motor alloy shell has simple structure, precise treatment can be carried out on the inner wall and the outerwall of the electric motor alloy shell at the same time, and the precision processing device of the formed electric motor alloy shell is suitable for popularization.

An elastic dust cover, disposed between the outer circumferential surface of a housing and outer circumferential surface of a stud portion of a ball stud, is attached in a manner blocking an opening portion of the housing. In the dust cover, a first lip portion which is closely fitted in a condition urged toward an end face on a ball portion-side of a brim portion of a ball stud is provided. Even in a case where the ball stud is relatively greatly swayed with respect to the housing, since the first lip portion and a second lip portion follow the brim portion to be closely fitted, sealing can be satisfactorily provided.

There is a vehicle power transmission device in which a continuously variable transmission and a gear train are provided between an input shaft and an output shaft so as to be able to transmit torque between the input shaft and the output shaft, the gear train has at least one speed ratio that cannot be set by the continuously variable transmission. In the vehicle power transmission device, a forward-reverse switching mechanism is arranged along the same axis as an axis of the input shaft, a first clutch mechanism and a brake mechanism are provided, a second clutch mechanism is provided in a first torque transmission path that is routed from the input shaft to the output shaft via the continuously variable transmission, a third clutch mechanism is provided in a second torque transmission path that is routed from the output element to the output shaft via the gear train.

A movable sleeve of a second clutch is provided between a cylindrical ring gear and a cylindrical shaft of a differential case of a differential gear unit. In a disconnect mode in which a propeller shaft is disconnected from rear wheels, the cylindrical ring gear is disconnected from the differential case by the movable sleeve of the second clutch. Thus, in the disconnect mode, a fully differential state of the differential gear unit is prevented.

The invention discloses surface grinding equipment based on double-head bolt processing, and the invention belongs to the technical field of bolt processing. It includes a fixed base and a grinding disc. The grinding disc is movably installed on the upper part of the fixed base. A rotating collar is movably installed in the middle of the outer surface of the upper end of the fixed base, and the inner side of the rotating collar is fixedly socketed. To install the splicing chuck of the stud bolt, the upper part of the fixed base close to the side of the rotating collar is movably installed with a driving hand wheel for driving the rotating collar to rotate; when the stud bolt is ground, the grinding disc is driven by the motor Rotate, so that the grinding disc can complete the grinding operation of multiple sets of stud bolts at the same time, and when the grinding disc rotates, the user can insert the positioning rod of the driving hand wheel into the circular slot on the fixed base, It can fix the rotating collar and use the setting of the splicing chuck to complete the grinding operation of multiple stud bolts at one time, improving its work efficiency.

The invention discloses a stepping tapping device for an ear tag injection molded part. The stepping tapping device comprises a base plate, a motor, a rocker, a driving rod and a turntable frame; a limiting guide support is arranged at the corner of the base plate; a guide column is arranged on the limiting guide support; a pneumatic tapping machine is arranged in the middle of the edge of the base plate; the motor is connected to the lower end of the base plate through bolts; one end of the rocker is connected to an output shaft of the motor, and the other end of the rocker is hinged to the lower part of the drive rod; a long groove is formed in the driving rod and can slide under the limit of the guide column; and the turntable frame is connected to the base plate in a rotating mode. Thestepping tapping device has the advantages that the stepping tapping operation can be carried out after a male ear tag body is subjected to injection molding, the tapping efficiency is high, the thread consistency is good, and the adjustment of changing the thickness of a tag pole of the male ear tag body can be facilitated.

The invention relates to a frequency multiplication method for a Hall speed sensor at a shaft end. According to the method, two square wave signals having the same frequency and output by two Hall elements pass through an exclusive-OR gate to obtain a frequency-multiplied square wave signal; and since the two Hall elements are arranged on the outer periphery of a gear and the projection distance of a connecting line between induction points of the two Hall elements in the rotation direction of the gear is m pi / 4, a phase difference between the two square wave signals with the same frequency is 90 degrees, and the duty ratio of square wave signals obtained after frequency multiplication is 50%, wherein m is the modulus of the gear. According to the invention, the positions of the two Hall elements on the outer periphery of the gear are reasonably arranged, so the phase difference between the two paths of square wave signals with the same frequency before frequency multiplication is 90 degrees, the duty ratio of the square wave signal after frequency multiplication is ensured to be 50%, and high-level time and low-level time in output signals reach the maximum and are thus better identified.

The invention belongs to the field of stamping, and particularly relates to stainless steel plate stamping equipment which comprises a workbench, a support is fixedly connected to the workbench, an air cylinder is arranged on the support, the output end of the air cylinder is fixedly connected with a pressing plate, and two buffering mechanisms and a stamping head are fixedly connected to the pressing plate. Sliding rods are fixedly connected to the two buffering mechanisms correspondingly, and the sliding rods are slidably connected with the support. Through cooperation of a toothed bar and a gear, a worm can be matched with up-and-down movement of a stamping head to achieve forward and reverse rotation, under cooperation of a worm gear, a threaded sleeve can be matched with movement of the stamping head to rotate, then a threaded rod can drive a push plate to be matched with automatic sliding in the stamping process, and after stamping is finished, the push plate can be matched with return of the stamping head, the waste materials are automatically pushed out of a receding hole, and tedious manual taking and labor loss are avoided.

A reaction chamber for a chemical reactor comprises a casing (100) of the reaction chamber, a floor (200) of the reaction chamber having an opening (300) located in the floor, an agitator shaft (400) located in the chamber and having at least one agitator element (500), connected thereto, wherein the agitator shaft (400), seen in the longitudinal direction, has a beginning (600) and an end (700). In the opening (300) of the floor (200) a removable sleeve (800) is provided, which projects out of the reaction chamber. The sleeve (800) is arranged in alignment with the axis of rotation of the agitator shaft (400). The internal diameter of the sleeve (800) is greater than the diameter of the agitator shaft (400) and the agitator shaft (400), at the beginning (600) thereof and / or at the end (700) thereof, is adapted to absorb reversibly a torque provided by means of a further shaft and / or to transmit a torque to a further shaft. Using such a reaction chamber, it is possible to build up modular chemical reactors having decreased backmixing.