9results about How to "Avoid Vibration Damage" patented technology

The utility model relates to agricultural harvesting machinery technical field, concretely relates to the anti-injury excavating shovel structure of konjak harvester, including shovel body support, the bottom fixed mounting of shovel body support is horizontally arranged horizontal beam, the bottom fixed mounting of horizontal beam has a plurality of linear equidistance arrangement vertical beam along horizontal beam length direction, the bottom rod body of vertical beam is provided with angle adjustable excavating shovel, the end head position of excavating shovel is provided with arc blade mouth, the back central position of excavating shovel is integrally formed with reinforcing rib, and the first compression support rod and second compression support rod for resisting compression support are arranged between vertical beam and reinforcing rib. The utility model discloses firm structure can reduce the injury of konjak, reaches the effect of protecting the integrity of konjak.

The utility model relates to the technical field of power batteries, and provides a battery distribution box and a battery pack. The battery distribution box comprises a shell, a BMS main board and a BDU assembly, wherein the BMS main board and the BDU assembly are arranged in the shell. The BDU assembly comprises a contactor and a copper bar assembly connected with a main contact of the contactor. A coil contact of the contactor is welded with the control bonding pad to be communicated with a low-voltage control circuit on the BMS main board, and a connecting piece on the copper bar assembly is welded with the acquisition bonding pad to be communicated with a high-voltage acquisition circuit on the BMS main board. According to the battery distribution box disclosed by the utility model, the BDU assembly and the BMS mainboard are integrated in the same shell, so that the occupation of the space in the battery pack can be reduced, the connector and the copper bar assembly in the BDU assembly are directly welded and connected with the bonding pad of the BMS mainboard, and the connection hidden danger caused by wiring harness connection is eliminated; and the connection strength and the connection reliability between the BMS mainboard and the BDU assembly are improved.

The application belongs to the technical field of hydrological test, and discloses a sediment flow monitoring device for hydrological test, which comprises a sediment meter, a bottom plate, a stand, a sliding frame, a float, a connecting rod and a mounting plate. The sediment meter is arranged on the bottom surface of the mounting plate. The top of the sliding frame is provided with two connecting plates. The top surfaces of the connecting plates are provided with two vertical plates at intervals. Two rotating holes are formed in the two vertical plates. A rotating shaft is rotatably arranged in the two rotating holes. A roller is fixedly arranged on the rotating shaft. The roller surface is in contact with the surface of the adjacent stand. The two vertical plates are provided with external thread pipes on the sides away from each other. Rubber damping pipes are arranged in the external thread pipes. The inner ring of the rubber damping pipe is matched with the rotating shaft. The float drives the sliding frame and the sediment meter to lift. When the roller and the rotating shaft are lifted and rotated, the rubber damping pipe applies damping force to the rotating shaft, so that the rotating speed of the rotating shaft and the roller is prevented from being too fast, thereby limiting the lifting speed of the float and the lifting frame under the action of waves and preventing the sediment meter from being damaged by oscillation.

The invention discloses a fault monitoring device for an electrical cabinet that can be quickly located, and relates to the technical field of fault monitoring for electrical cabinets. The invention comprises a cabinet, wherein square grooves are provided on the left and right sides of the cabinet, and filters are respectively fixed on the inner walls of the two square grooves of the cabinet, and an electrical main body is fixedly installed on the front of the inner wall of the cabinet, and U-shaped groove plates are respectively fixedly installed on the left and right sides of the inner wall of the cabinet, and horizontal plates are slidably installed on the inner walls of the two U-shaped groove plates, and a temperature detector is fixedly installed in the middle of the top surface of the horizontal plate, and a round tube is penetrated and fixedly installed on the top surface of the horizontal plate, and the round tube is located on the right side of the temperature detector, and a screw is slidably installed on the inner wall of the round tube. The invention stops at the fault area of ​​the electrical main body through the temperature detector, thereby avoiding the problem that the equipment is difficult to locate the fault area of ​​the electrical main body, resulting in poor equipment maintenance effect.

The invention discloses a device for precisely dicing and transplanting rice seedlings with soil, and particularly relates to the field of agricultural planting.The device comprises a machine body, a feeding and dicing mechanism is arranged on the machine body, the feeding and dicing mechanism comprises a rack arranged on the machine body, and a longitudinal feeding assembly and a transverse feeding assembly are arranged on the rack; the longitudinal feeding assembly is used for longitudinally conveying seedling trays; a transverse cutting assembly and a longitudinal cutting assembly are further arranged on the rack, the transverse cutting assembly is used for cutting the seedling tray into a plurality of strip-shaped seedling strips in the transverse direction, the transverse feeding assembly is used for transversely conveying the strip-shaped seedling strips, and the longitudinal cutting assembly is used for longitudinally cutting the strip-shaped seedling strips into a plurality of single-plant seedlings. By arranging the feeding and dicing mechanism, the seedling tray is cut step by step, the impact force is small, the vibration is slight, the cutting action is continuous, the interference to adjacent non-cut areas is extremely small in the cutting process, large-area pulling and vibration damage to root systems is avoided, and the damage to seedlings during cutting is reduced.

This invention discloses a drone with a folding wing structure, relating to the field of drone technology. It includes an outer shell mechanism, a camera mechanism mounted on the left side of the outer shell mechanism, a wing mechanism mounted on the top of the outer shell mechanism for gliding, and a horizontal wing mechanism mounted on the bottom of the outer shell mechanism. By mounting the wing mechanism at the top, the horizontal wing mechanism at the bottom, and tail rudder mechanisms at both ends of the outer shell mechanism, a complete flight control system is formed. The wing mechanism enables the outer shell mechanism to glide, the horizontal wing mechanism provides balance and guidance for the overall structure, and the tail rudder mechanism precisely controls the flight attitude. These three mechanisms work together to improve flight stability and maneuverability. The complementary functions and structural synergy between the mechanisms enhance the reliability and flexibility of the drone's flight, improve the overall durability and protective performance of the equipment, and significantly optimize the user experience of the drone.

The utility model discloses a residual piece detection and removal device, and belongs to the technical field of detection equipment. Comprising a broken particle detection mechanism, a broken particle removal mechanism is fixedly connected to the outer side of the broken particle detection mechanism, a suction pipe is fixedly arranged at the bottom end of the broken particle removal mechanism, a partition structure for partitioning the suction pipe is fixedly arranged at the top end of the suction pipe and arranged on the inner side of a fixing block, and a limiting structure is slidably connected to the inner side of the fixing block; the limiting structure can limit and fix the side edge of the suction pipe, through the limiting structure slidably connected to the outer side of the suction pipe, when the baffle is opened, the negative-pressure residual piece suction operation chamber is started, movement of the baffle can drive the limiting structure to deform, and when the baffle is completely hidden, the limiting structure can further limit and fix the outer side of the suction pipe; the vibration damage caused by the impact force of the tablets to the suction pipe when the suction pipe sucks the tablets is avoided, meanwhile, two kinds of movement can be achieved only through movement of the baffle, and the linkage performance of the internal structure of the device is improved.

The utility model provides a night search and rescue lighting device of a rescue helicopter, and belongs to the technical field of lighting devices. Comprising an illuminating lamp; the horizontal vibration reduction assembly is arranged at the top of the illuminating lamp and comprises a base arranged at the top of the illuminating lamp, a connecting shaft is arranged between the base and the illuminating lamp, the connecting shaft is fixedly connected with the illuminating lamp, and a transmission plate is fixedly connected to the end, close to the interior of the base, of the connecting shaft; a main elastic piece is arranged on the side, close to the transmission plate, of the base. By arranging the horizontal vibration reduction assembly, when the illuminating lamp is disturbed by airflow, the connecting shaft swings along with the illuminating lamp, then the transmission plate is driven to move in the base, the acting force borne by the transmission plate is transmitted to the main elastic pieces, and the multiple main elastic pieces can conduct vibration reduction by means of elastic deformation of the main elastic pieces. The vibration energy can be effectively absorbed and buffered from multiple directions, the influence of vibration in the horizontal direction on the lighting device is remarkably reduced, and the service life of the lighting device can be prolonged.

The invention discloses a control method and device of a road roller in the technical field of vibratory road roller control, and aims to solve the technical problems that an abnormal working state is difficult to judge and protective shutdown is difficult to realize in vibratory compaction operation. The method comprises the steps that a second-order system inherent frequency value between the road roller and a soil layer is obtained, and vibration compaction operation is stopped in response to the fact that the second-order system inherent frequency value reaches a first threshold value; the actual vibration frequency value of the road roller is obtained, and vibration compaction operation is stopped when the actual vibration frequency value is smaller than a second threshold value; the compaction degree value of the soil layer is obtained, and vibration compaction operation is stopped when the compaction degree value is larger than a third threshold value; the abnormal working state of the whole process of the vibration compaction operation of the road roller is judged, and the vibration compaction operation is protectively stopped, so that the road roller is prevented from excessively compacting a fully compacted soil layer, ineffective operation with uncontrollable quality is prevented, and the working efficiency of the road roller is improved. And during normal vibration compaction operation, the road roller is prevented from continuously vibrating and being damaged after driving into a compacted soil layer.