40results about How to "Not prone to bending deformation" patented technology

The invention discloses a hydraulic precision leveling machine which comprises an upper roller group, a lower roller group, a load bearing beam, a machine base and four upright posts, wherein the upper roller group and the lower roller group are respectively and fixedly provided with power decelerating devices, the load bearing beam is composed of an upper beam and a lower beam which is fixedly arranged on the machine base, the upper roller group is fixedly connected with the upper beam, the lower roller group is fixedly connected with the lower beam, the four upright posts are respectively and fixedly sheathed on four corners of the lower beam, and the upper beam can be movably sheathed on the four upright posts. Both the upper roller group and the lower roller group comprise a plurality of leveling rollers, wall plates, a plurality of support brackets, a plurality of fixing shafts and a plurality of support jockey pulleys, wherein the leveling rollers are arranged side by side and can be rotatablely supported on the wall plates on both sides, the fixing shafts are supported on the support brackets, and the support jockey pulleys can be rotatablely sheathed on the corresponding fixing shaft. The hydraulic precision leveling machine has the advantages of high leveling precision, simple structure and low manufacturing cost, and leveling requirements for plates with different thicknesses can be satisfied.

The invention provides a boring cutter installing shaft, a boring assembly and a boring mill. The boring mill comprises a rack and the boring assembly. The boring assembly comprises a boring cutter rotating relative to a workpiece, and the boring cutter installing shaft. The boring cutter installing shaft comprises a shaft body, the shaft body is used for stretching into a to-be-machined hole of the workpiece during using, and the two ends of the shaft body extend out of the two ends of the to-be-machined hole to form two supporting ends. A guiding structure used for guiding moving assembly of the boring cutter so as to enable the boring cutter to machine the to-be-machined hole into a needed forming hole is arranged on the shaft body in the length direction in an extending manner. The boring mill further comprises a driving mechanism used for driving the boring cutter to move along the guiding structure in a guiding manner. When the boring assembly is used for conducting boring, due to the fact that the two ends of the shaft body are the supporting ends and are stably supported, the whole boring cutter installing shaft is good in stability and not prone to bending or deforming, the boring cutter moves along the shaft body in the guiding manner and rotates relative to the workpiece, the boring cutter is stable and reliable when boring the inner circumferential face of the to-be-machined hole, vibration cannot happen, the inner hole machining precision is greatly improved, and the machining quality is guaranteed.

The invention discloses a method for driving a trailer bogie based on the body of a low-floor trailer. Specifically, the driving force is first transmitted to the hinged seat, and the driving force on the hinged seat is along the longitudinal beam lower cover plate, longitudinal beam upper cover plate, The side plates of the longitudinal beam and the ribs of the longitudinal beam are continuously transmitted to the traction connecting seat, and the traction connecting seat transmits the driving force to the frame through the traction device, and transmits the driving force to the wheel set through the primary suspension and the axle box; the longitudinal beam When transmitting the driving force, a vertical component force F will be generated on the part extending obliquely 1 . This method makes the transmission performance of the traction force better, and makes the stability and safety performance of the low-floor trailer good during operation.

The invention provides a torsion bar for a safety belt coiling device. The torsion bar is in a bar shape and the axial length of the torsion bar is not more than the axial length of a coiling shaft; peripheral outer teeth are arranged at two end parts and the middle part of the torsion bar and the outer teeth at the two end parts of the torsion bar are matched with inner teeth of central concave holes of end faces of the two end faces on the coiling device; the peripheral outer teeth at the middle part are matched with inner teeth arranged at the middle section of a through hole at a central axis position of a core shaft; the torsion bar is divided from the middle part of the axial direction to form a two-section type structure; and the peripheral outer teeth at the middle part are located at abutted end parts of two sections. Compared with the prior art, the torsion bar disclosed by the invention does not pass through an end cover and is shorter in length, so that the torsion bar is not easy to bend and deform and the use process is safer and more stable. The torsion bar is divided into the two sections, so that different safety belt force limiting value requirements can be met through the combination of different diameters or materials. The invention further provides the safety belt coiling device using the torsion bar and a safety belt assembly.

The invention discloses a cutter grinding clamp used for a single-blade gun drill. The cutter grinding clamp used for the single-blade gun drill comprises a fan-shaped cone sleeve and a cylinder sleeve. The cone sleeve and the cylinder sleeve are connected mutually. Installing holes used for penetrating of the gun drill are formed in the center of the fan-shaped cone sleeve and the center of the cylinder sleeve. Locking screws are arranged on the fan-shaped cone sleeve and the cylinder sleeve. The locking screws are used for penetrating the sleeve wall in the direction perpendicular to the installing holes to fix the gun drill which penetrates through the installing holes. A locking face is arranged at the front portion of a cone. The cutter grinding clamp is suitable for being used in small-diameter single-blade gun drill with the diameter range of 1-3mm. the cutter grinding clamp is used for clamping the small-size single-blade gun drill. Meanwhile, when the cutter grinding clamp is used for cutter grinding of a cutter grinding machine, bending deflection cannot occur easily.