41results about How to "No axial force" patented technology

The invention is a method and a roll for rolling the large-sized rail into small-sized rail. The roll: each group of passes includes a pass whose symmetrical line and the rolling line are vertical and a pass whose symmetrical line and the rolling line are concurrent, each group of passes decreases with the pass size, each group of passes corresponds to a kind of rail; the pass whose symmetrical line and the rolling line are vertical, the shape of roll slot on the two rolls match with the head part and the leg part of the rail; the pass whose symmetrical line and rolling line are concurrent, the slots on two rolls are distributed symmetrically to the rolling line. The method: using above mentioned roller, the large-sized steel rail is rolled with pass whose size is decreased gradually, the two kinds of passes are used alternately, and thus the small-sized steel rail is produced. The method is simple, the cost is low.

The invention belongs to the technical field of non-circular gears and discloses a design method for a curved-tooth non-circular gear. The tooth profile of the curved-tooth non-circular gear is designed through a generating gear. The tooth profile equation is solved according to the curved surface of a counterpart rack, the kinematic relation of gear generation and the engagement principle. Compared with a straight gear, the curved-tooth non-circular gear designed through the method is high in contact ratio and bearing capacity. Compared with a bevel gear, the curved-tooth non-circular gear designed through the method does not generate axial force in the transmission process and has low requirements on bearings and installation. Through the arc tooth profile of the curved-tooth non-circular gear, lubricating oil is contained in the tooth surface, and therefore a quite good lubricating condition is achieved.

Roller setup (1) for a rolling mill, especially a planetary inclined rolling mill with roller (3) on roller shaft (2), which is releasably connected to roller (3), has an arrangement (4) between the roller shaft and roller (3) for positive transfer of a drive turning moment from roller shaft (2) to roller (3). Roller setup (1) for a rolling mill, especially a planetary inclined (sic) rolling mill with roller (3) on roller shaft (2), which is releasably connected to roller (3), has a arrangement (4) between the roller shaft and roller (3) for positive transfer of a drive turning moment from roller shaft (2) to roller (3). Arrangement (4) comprises a first gear (5) connected to the roller shaft and a second gear (6) connected to roller (3), and gears (5) and (6) have positive meshing.

The invention discloses an agricultural-machine engine electromagnetic clutch. The agricultural-machine engine electromagnetic clutch comprises a clutch shell. A coil installing sleeve is fixed in the clutch shell, a coil is packaged into an annular groove in the coil installing sleeve, a main shaft is installed in the clutch shell, an outer gear sleeve is connected on the main shaft, and the inner end of the outer gear sleeve is sleeved with an inner armature; an inner gear ring is arranged in the clutch shell and used for being connected with an engine flywheel; a plurality of outer-gear friction plates and a plurality of inner-gear friction plates are arranged between the inner gear ring and the outer gear sleeve, are sequentially arranged at intervals and are engaged with teeth of the inner gear ring and teeth of the outer gear sleeve respectively, the outer end of the teeth of the outer gear sleeve is sleeved with an outer armature, and the outer armature is engaged with the outer gear sleeve through a plurality of teeth and can axially slide along the outer gear sleeve; an output belt wheel is connected to the other end of the main shaft. The agricultural-machine engine electromagnetic clutch has the advantages that operation is easy, remote control of the clutch can be achieved through an electric switch, a gap does not need to be adjusted, the fault rate is low, the service life is long, the structure size is small, and whole machine design is convenient.

A double-row radial plunger hydraulic retarder with two end face distribution plates, including a transmission shaft, the front end of the transmission shaft is connected with the gearbox, the rear end is connected with the drive axle, and two cylinders are installed side by side in the middle of the transmission shaft One cylinder has an annular groove and is equipped with an intermediate ring of the cylinder. A row of radial plunger holes are respectively opened in parallel on the outer circumference of the two cylinders. Between each plunger hole and the plunger Equipped with a return spring, the top of the sliding shoe installed on the plunger is pressed against the inner ring of the needle roller bearing fixed on the stator. The upper and lower sides of the stator are pressed by two variable pistons, and the left and right sides are pressed by friction blocks. Compression and positioning are carried out through the left end cover of the retarder and the right end cover of the retarder, the variable piston is installed in the middle housing, and the two cylinders are respectively pressed against the flow plate installed on the left and right end covers of the retarder. Recycling of kinetic energy during braking, compact overall structure, stable operation, no axial force, and automatic hydraulic compensation.

The invention relates to a partial emission pump with a low specific speed, which comprises an inlet component and a shell component. The shell component comprises a shell, an impeller, an inducer, a transmission shaft, a diversion sleeve and a diffusion pipe; the impeller, the inducer, the transmission shaft and the diversion sleeve are arranged in the shell; the diffusion pipe is arranged on the shell and is communicated with the shell; the inlet component comprises an inlet shell and an inlet pipe; the inlet pipe is connected with the inlet shell; the partial emission pump also comprises athroat part arranged on the shell; the shell is communicated with the diffusion pipe through the throat part; and the central line of the diffusion pipe is parallel to the external tangent line of anannular channel on the shell. The invention solves the technical problems of narrow blade outlet, difficult manufacture and processing of the impeller and low efficiency of the centrifugal pump, facilitates the large-scale adjustment of operating conditions, and improves the hydraulic efficiency of the pump.

A pressure-compensated end-face oil-distribution double-row radial piston variable pump with annular pistons, including a transmission shaft on which two cylinders are installed side by side, one cylinder has an annular groove and is equipped with a pressure-compensated annular piston , a row of radial plunger holes are opened in parallel on the outer surface of the cylinder body, and a plunger is installed on each plunger hole, and a return spring is installed between the plunger hole and the bottom of the plunger, and the plunger Sliding shoes are installed on the top, and the top of the sliding shoe is pressed against the inner ring of the needle roller bearing fixed on the inner ring of the stator. The upper and lower sides of the stator are pressed by variable pistons, and the left and right sides are pressed by friction blocks, which pass through the pump. The end cover is pressed and positioned, and the variable piston is symmetrically installed in the round hole of the intermediate housing, and the boss outside the round hole of the intermediate housing is equipped with a variable end cover, and the variable end cover and the variable piston are respectively compressed. With a variable spring, the invention works stably and has strong continuous working ability, and has the advantages of no axial force and automatic hydraulic compensation.

The invention provides a diamond grinding roller and a manufacturing method of the diamond grinding roller. The diamond grinding roller comprises a basic roller, a grinding bucket and a column type fixed part, wherein the basic roller comprises a connecting part used for being connected with using equipment, the column type fixed part is used for connecting a grinding ring in a sleeved mode, the surface of the fixed part is axially provided with at least one constant hump or one depression, and the grinding bucket is provided with a plurality of superimposed grinding rings. Two ends of the diamond grinding roller are designed into an integrated cutting head, the middle part of the diamond grinding roller is a discontinuous cutting head, so that the relative positions of middle pieces can be arbitrarily placed, and the integrated gap groove is a large helical angle. The radial surface of the cutting head is an arc-shaped surface or a surface with an angle is formed with the radius, the structure is better for chip removal, the cutting blade is broken line shaped of parallel axes, an axial component force cannot occur during working, and the grinding is more stable. The integrated cutting head end pieces are arranged on the two ends, so that the outer working surface of the whole grinding roller has the cutting head contact grinding at any time, and the impact due to the intermittent grinding is prevented.