6results about How to "Protect against damage" patented technology

This utility model discloses a manual winding machine, including a fixed plate, a connecting rod, a winding reel, a winding rod, a worktable, a fixed plate, a connecting rod for fixing the winding machine, and a clamping device. The clamping device can be fixed on any tooling table. The connecting rod connects to the winding reel, causing it to rotate. The winding reel has holes for fixing the winding rod, which controls the consistency of the winding size. The winding rod has a positioning and fixing function, allowing the cable to be coiled around multiple winding rods for winding. The cable is coiled together by several components. The worktable has locking casters at the four corners, allowing for easy movement of the workstation. This ensures that the equipment can maintain convenient movement during workshop transfers and production line adjustments, while also withstanding the mechanical vibration generated by high-frequency winding operations. The overall system achieves closed-loop control of the entire process of "fixing-transmission-forming-moving" through modular design.

The utility model discloses a portable card reader comprising a card reader main body, one side and the rear surface of the card reader main body are respectively provided with two card slots, and the outer side of the card reader main body is sleeved with an L-shaped protective cover. According to the portable card reader provided by the utility model, the card reader main body, the card slot and the L-shaped protective cover are matched with each other, so that the card reader can accommodate various equipment memory cards, the memory cards are prevented from being damaged, the card reader and the memory cards are convenient to carry together, a connecting wire and a connecting plug can be stably clamped through the limiting clamping frame and the plug clamping sleeve, and the card reader is convenient to carry. The connecting line and the connecting plug are folded, stored and used conveniently, the connecting line is folded and clamped in the limiting clamping frame, the connecting line can be taken out section by section when being taken out, the clamped part can be taken out according to the use requirement, it can be ensured that the connecting line is stored in order, winding and knotting are avoided, and the plug clamping sleeve is responsible for clamping the connecting plug and blocking the front end of the connecting plug. And dust is prevented from entering the connecting plug.

This utility model belongs to the technical field of tail gas recovery devices, specifically relating to a tail gas recovery device for a desulfurization regeneration tank. It includes a tail gas recovery tower, with an air inlet installed on the outer wall near the bottom on one side. The other end of the air inlet is connected to one end of a connecting pipe via a flange. A cooling jacket is fitted onto the outer wall of the connecting pipe. In use, the connecting pipe is connected to the tail gas discharge port of the desulfurization regeneration tank, and a water pump is started to discharge cooling water from the cooling water tank to the inlet. The cooling water then enters the cooling jacket through the inlet. Once inside the cooling jacket, the cooling water lowers the temperature of the heat-conducting coils. The tail gas from the desulfurization regeneration tank then flows along the spiral track formed by the annular sleeve and the filling column after entering the connecting pipe. This increases the flow time of the tail gas in the connecting pipe, allowing it to absorb a significant amount of heat through the interaction of the cooling jacket's heat-conducting coils.

A method for determining the hinge reaction torque in the event of a holding-moment hinge deployment impact includes: establishing the system dynamic equations; setting the current values ​​(HoldMarker_H5, HoldMarker_H6) of the holding hinge flags for hinges H5 and H6, and the updated values ​​(HoldMarker_H5_update, HoldMarker_H6_update) of the holding hinge flags for hinges H5 and H6; updating the system generalized coordinate matrix q, the generalized coordinate first-order derivative matrix with respect to time, and obtaining the system generalized coordinate q at the next moment. i The constraint reaction force of each hinge is compared with the structural strength of the hinge. This invention solves the problem of high safety design and testing costs of the entire satellite hinge caused by the large impact torque during satellite antenna deployment.

The utility model belongs to the field of low-speed diesel engine crosshead pin shaft manufacturing, and particularly relates to a tool for grinding an outer circle of a low-speed diesel engine crosshead pin shaft. According to the tool, the large-diameter pipe thread is directly connected with the crosshead internal thread, the tool cone circle and the crosshead taper hole are attached and positioned, the datum circle is combined for alignment, datum unification of boring and grinding procedures is achieved, the tool cone angle on one side of the tool center through hole effectively protects the end face of the tool taper hole from being damaged, and the service life of the tool is prolonged. The coaxiality of a large-diameter pipe thread, a workpiece cone circle, a reference circle and a workpiece taper hole is controlled within 0.01 mm, and through group use and same-group identification matching, mixed use errors are avoided, the material of a tool is consistent with that of a workpiece, and the influence of thermal deformation difference on precision is reduced. The method has the advantages of being high in machining precision, low in cost, convenient to operate and the like, and the machining quality and efficiency of the crosshead pin shaft are remarkably improved.

The application relates to the technical field of crane motion control, and discloses an electric grab bucket protection system and a control method thereof, wherein the system comprises a PLC, an inductive switch, a current transformer, a grab bucket opening AC contactor and a grab bucket closing AC contactor which are electrically connected with the PLC respectively; the current transformer is used for sampling electric grab bucket current information and transmitting the information to the PLC; and the inductive switch is used for controlling whether the current transformer transmits the sampled electric grab bucket current information to the PLC. The application solves the problems of the prior art, such as the incapability of accurately controlling the opening and closing limit of the grab bucket and the poor protection effect.