5results about How to "Prevent horizontal movement" patented technology

The utility model relates to the technical field of oil drum transportation, in particular to a grease drum hoisting device. Comprising an assembling frame, a supporting plate is arranged in the assembling frame, a lifting mechanism is arranged at the top of the assembling frame and used for driving the supporting plate to vertically move, a moving plate is arranged on the upper side of the supporting plate, a circular groove is formed in the center of the moving plate, and a lifting mechanism is arranged on the upper side of the supporting plate; and the lifting mechanism is used for driving the moving plate to vertically move. After a grease barrel is placed on the upper side face of the supporting plate and located in the circular groove, an operator starts the electric motor to enable the output shaft of the electric motor to drive the transmission shaft to rotate, the two lead screws rotate synchronously, the movable plate is driven to vertically move upwards, and the circular groove moves to the middle position of the side wall of the grease barrel; the grease barrel can be prevented from horizontally moving and toppling towards one side through the circular groove, the safety of the grease barrel in the lifting process is guaranteed, and the lifting efficiency of the grease barrel is improved.

This utility model discloses a beveling forming device for large-diameter metal pipe fittings, including a drive assembly, a plasma cutting assembly, and a limiting assembly. The drive assembly includes a base driven by two sets of first hydraulic cylinders. A first roller and a second roller are mounted on the base. The first roller is driven by a first motor. The limiting assembly is used to clamp the pipe fitting. The plasma cutting assembly includes a housing driven by a first linear motor. A second linear motor is mounted on the housing. The slide of the second linear motor is connected to a rotating seat, and the rotating seat is connected to a cutting head. In this utility model, the cutting head achieves radial feed via a linear motor, and the rotation of the large-diameter metal pipe fitting is achieved through the drive assembly. Both only require independent speed adjustment to achieve beveling. When the pipe fitting rotates, the load distribution is uniform with minimal fluctuation. The rotation mechanism of the drive assembly is low-cost and easy to maintain, eliminating the need to rotate the cutting head and simplifying the structure.

The invention relates to the technical field of stand column rivet welding adjustment, in particular to a multi-degree-of-freedom adjusting device for stand column rivet welding, which comprises a bottom rack, the bottom rack is provided with two groups of rotating rollers which are symmetrically distributed along the length direction of the bottom rack and are used for supporting a stand column, each group of rotating rollers are symmetrically distributed along the width direction of the bottom rack, and one group of rotating rollers is fixedly arranged; the other set of rotating rollers can move in the length direction of the bottom rack, and the rotating rollers can drive the stand columns to rotate around the axes of the stand columns to achieve pre-alignment of riveting holes; through the first rotatable roller and the second rotatable roller matched with friction force enhanced by rubber particles on the surfaces of the rollers, the stand column and the circular base can be stably driven to rotate synchronously, the riveting holes and the alignment rods are accurately aligned, circumferential rotation adjustment of the stand column around the axis of the stand column can be achieved, the dislocation problem is avoided, the butt joint difficulty is reduced, time is shortened, and a foundation is laid for subsequent riveting.

The utility model discloses a quick replacement device of excavator bucket tooth, including machine bucket, the front side of machine bucket is provided with the installation tooth, and the tooth is opposite installation tooth and is provided with the plug -in slot, the upper side of tooth is provided with first slot body, the surface of installation tooth is opposite first slot body and is provided with second slot body, be provided with internal thread in first slot body, be screwed in thread column in first slot body and second slot body, the bottom of second slot body is provided with first chamber, first chamber with second slot body intercommunication, be provided with transmission mechanism in first chamber, one end of transmission mechanism is contacted or separates with thread column, and the other end is connected with locking block, the inside of plug -in slot is opposite locking block and is provided with second chamber, adopt this design, need only in the process of vertical installation thread column, can realize horizontal fixed simultaneously, need not between the narrow installation tooth gap and carry out the bolt fixing.

The utility model relates to the technical field of electrified railway equipment, in particular to a compensation device for renovating a contact network, which comprises a compensation rope, a movable pulley, a support column and a contact network compensation device arranged on the support column, the contact network compensation device comprises a pulley support, a fixed pulley and a secondary fixed pulley are arranged on the pulley support, and the compensation rope bypasses the movable pulley. A balance weight set is installed downwards from the fixed pulley, a supporting frame is installed on the supporting column, a guide rod is installed on the supporting frame, and the balance weight set is installed on the guide rod in a sliding mode. According to the utility model, the guide column, the mounting column and other structures are used, so that the movement path of the balance weight group can be limited, the balance weight group is prevented from moving in the horizontal direction due to strong wind weather, the problems of eccentric wear and groove separation of the fixed pulley are reduced, and the safe and reliable operation of the overhead line system is ensured; and through the use of the anti-wear pulley, the problems of eccentric wear and groove separation of the fixed pulley caused by the compensation rope are further solved.