7 results about "Shaft collar" patented technology

The application provides a needle-type spherical collar automatic press-fitting mechanism, which can be compatible with press-fitting of needle-type spherical collars with different outer diameters by adjusting the position of a detection block and changing a quick-change head, so as to prevent incorrect assembly, the three-pin body shaft assembly is heavy, and the robot carrying reduces the working strength of workers, improves the stability of operation, realizes full-automatic assembly, guarantees the stability and consistency of products, and improves the assembly efficiency.

The present application relates to the technical fields of swash plate type hydraulic piston pump, and discloses a straight-shaft swash plate type hydraulic piston pump core structure, which comprises a transmission shaft, a controller, a cylinder body fixedly arranged at one end of the transmission shaft, and piston holes uniformly arranged in the cylinder body, a piston movably arranged in the piston hole, and a sliding shoe arranged at one end of the piston, further comprising a deviation rectifying device arranged at one side of the cylinder body and comprising a shaft ring movably sleeved on the piston and an electric push rod fixedly arranged on the cylinder body. Through the arrangement of the deviation rectifying device, the eccentric force of the piston can be offset by the deviation rectifying device when the piston moves in the piston hole, and the electric push rod is used to pull the shaft ring to reduce the eccentric force and the abrasion between the piston hole and the piston when the piston rotates to the highest point of the wear plate, i.e. the end point of the sliding of the piston in the piston hole.

The utility model provides air conditioner fan low noise deep groove ball bearing relates to bearing technical field, include: outer shaft ring and sealed noise reduction structure, the inside of outer shaft ring is equipped with inner shaft, is equipped with ball between inner shaft and outer shaft ring, the outside of outer shaft ring and inner shaft is equipped with sealed noise reduction structure, sealed noise reduction structure contains following subassembly: sound absorbing ring: pastes in the outside of outer shaft ring, and the both ends of sound absorbing ring are equipped with thread ring groove, through setting sealed noise reduction structure, through pasting sound absorbing material in the outside of bearing, can high -efficiently absorb the mechanical vibration and noise energy of bearing operation, reduce the noise propagation intensity, effectively improve the noise problem of air conditioner fan operation, set up the sealing ring between outer shaft and inner shaft can effectively block the invasion of outside dust, fiber and other impurities, avoid dust impurity aggravating the abrasion of ball and raceway, eliminate the noise hidden danger caused by ball movement instability, thereby all -round promotion bearing's noise reduction performance and operation stability.

The invention relates to a drill chuck (1) comprising a chuck body (2) which is provided at its rear end with a spindle receptacle (3) and at its axially forward end with a tool receptacle (4) into which a chuck jaw (6) which is movably guided in a guide channel (5) of the chuck body (2) projects. An annular collar (11) having a non-circular first outer circumference (12) projects axially rearward from the axially rearward end of the chuck body (2). A drive sleeve (13) which is mountable on the annular collar (11) is provided, which drive sleeve has a first inner circumference (15) which is adapted to the first outer circumference (12) for torque transmission. The axial extension of the drive sleeve (13) is greater than the axial extension of the annular collar (11). The invention also relates to a drilling machine.

This application discloses a height adjustment device for an electric vehicle suspension system, relating to the field of automotive suspension. It includes a connecting collar, a lower fork arm rotatably connected to the connecting collar, an upper fork arm rotatably connected to the connecting collar, a first suspension rod rotatably connected to the lower fork arm, a second suspension rod slidably connected to the first suspension rod, a support spring sleeved between the first and second suspension rods, one end of the support spring being fixedly connected to the second suspension rod, a height adjustment mechanism between the support spring and the first suspension rod, and an auxiliary fixing mechanism on one side of the first suspension rod. By using the height adjustment mechanism to move the support spring on the first suspension rod, the support spring moves the second suspension rod, thereby easily changing the position of the support point of the support spring on the first suspension rod, thus changing the initial support height between the first and second suspension rods and reducing the inconvenience of manual adjustment during setup.

The invention relates to a compressor shaft (11) for a turbine engine, the shaft (11) being unitary, annular and comprising a main body (38) and a collar (39) having an inner end (42) connected to the main body (38), characterized in that the main body (38) is divided into an upstream portion (44) and a downstream portion (45) longitudinally spaced from each other, the inner end (42) of the collar (39) being connected to the upstream and downstream portions (44, 45) via a forked portion (46) comprising an upstream arm (47) connecting the inner end (42) of the collar (39) and a downstream end (48) of the upstream portion (44) of the main body (38) and a downstream arm (49) connecting the inner end (42) of the collar (39) and an upstream end (50) of the downstream portion (45) of the main body (38) so that the upstream and downstream arms (47, 49) form an open recess (51) on the inner side.

This utility model discloses a borehole angle positioning bracket adapted to joint dip angles, including a base plate, a cylindrical block rotatably sleeved on the top of the base plate, a fixed plate fixed to the cylindrical block by a fixed rod, a lifting seat slidably sleeved on the fixed rod, a lifting mechanism for driving the lifting seat to rise and fall mounted on the cylindrical block, a fixed shaft fixed to the side of the lifting seat, a collar rotatably sleeved on the fixed shaft, a counterweight fixed to the collar by a suspension rope, a cap rotatably sleeved at one end of the fixed shaft, a sliding hole formed on the cap, a positioning rod slidably sleeved in the sliding hole, and an angle scale ring fixed on the lifting seat, the angle scale ring being coaxial with the fixed shaft. This utility model can quickly measure and position the angle of boreholes with joint dip angles.