30results about How to "Prevent "stuck" and other phenomena" patented technology

The invention relates to a mining head suitable for exploiting a deep-sea cobalt-rich crust. The mining head comprises a pick component and is characterized in that the pick component is arranged on the wall of a milling and digging roller, a spindle penetrates the milling and digging roller and is fixed to a milling and digging rack, a milling and digging motor is fixed to the milling and diggingrack, the milling and digging rack is further provided with a compensator, a first leather bag and first springs are arranged in the compensator, the first leather bag is filled with oil, the first springs are arranged on two sides of the first leather bag, and the bottom of the compensator is provided with a compensation oil port; two ends of the spindle are provided with bearings, a left bearing cavity exhaust port is arranged in a left bearing cavity, a right bearing cavity exhaust port and a right bearing cavity oil supplementing port are arranged in the right bearing cavity, the spindleis provided with an oil hole, the left bearing cavity and the right bearing cavity are communicated through the oil hole, and the compensation oil port is communicated with the right bearing cavity oil supplementing port. The mining head has the advantages that the mining head can adapt to deep-sea areas within 6000m; by a self-adaptation frequency-variable excitation function, crushing cutting force fluctuation range is lowered, pick service life is prolonged, and milling, digging and crushing efficiency is increased.

Disclosed is a large-angle small-gap side core-pulling mechanism of an angle-ejector-type oblique sliding block of an injection mold. The large-angle small-gap side core-pulling mechanism includes anupper composite plate and a lower composite plate. A mold cavity is formed below the upper composite plate. Support blocks are arranged on the lower composite plate. An upper ejector retainer plate, alower ejector retainer plate and an ejector are arranged on the lower composite plate between the support blocks. A backing plate is arranged on each support block. A mold core is arranged on each backing plate. Injection molded plastic parts are arranged between the mold cores and the mold cavity. An inverted hook is arranged below each plastic part. Retaining ribs are correspondingly arranged on the front side and the lower side of each inverted hook. The large-angle small-gap side core-pulling mechanism is characterized in that direct-ejector rods are arranged on the upper ejector retainerplate and the lower ejector retainer plate, a mounting hole is formed in each mold core, a sliding block seat is arranged in each mounting hole, an oblique sliding seat is arranged on each sliding block, a sliding slot is formed in one side of each oblique sliding seat, a penetrating hole is formed in each oblique sliding seat, a guiding pushing block is arranged in each penetrating hole, the direct-ejector rods penetrate through the sliding block seats and are fixed to the guiding pushing blocks, an oblique sliding block is arranged on one side of each oblique sliding seat, the upper part ofeach oblique sliding block is matched with the inverted hook of the corresponding plastic part, a sliding rail is arranged on one side of each oblique sliding block, the sliding rails are matched with the sliding slots, an inserting hole is formed in each oblique sliding block, and the inserting holes are connected with the guiding pushing blocks.

The inventiondiscloses a self-locking clamping mechanism of an injection molding machine. The self-locking clamping mechanism comprises a fixed mold plate (1), a movable mold plate (2), pull rods (3) and a mold moving oil cylinder (4), wherein the fixed mold plate (1) is fixed to one end of the pull rods (3), the movable mold plate (2) is arranged at the other end of the pull rods (3) in a sleeving manner, and a piston end of the mold moving oil cylinder (4) is connected with the movable mold plate (2) to drive the movable mold plate (2) to move. The clamping mechanism further comprises a mold locking structure, wherein the mold locking structure comprises rear nuts (5) corresponding to the pull rods (3) in a one-to-one mode, a large gear ring (6) and a power mechanism for driving the large gear ring (6) to rotate, the rear nuts (5) are screwed onto the pull rods (3), the outer edge of each rear nut (5) is in a gear shape, and the large gear ring is meshed with the rear nuts (5) respectively under the drive of the power mechanism and drives the rear nuts to rotate on the corresponding pull rods. The self-locking clamping mechanism does not need a mold locking oil cylinder and reduces the energy consumption of mold locking through self-locking between mechanisms.

The invention relates to an automobile plastic part manufacturing method which uses a finishing machine. The finishing machine comprises a workbench, a clamping mechanism and a grinding mechanism, theclamping mechanism is arranged in the middle of the upper end surface of the workbench, and the grinding mechanism is arranged on the right side of the clamping mechanism. The clamping mechanism is adopted for clamping the interior of an automobile plastic part, the clamping mechanism is clamped into an internal thread groove of the automobile plastic part for corresponding clamping-in of the internal thread groove of the automobile plastic part, and the automobile plastic part is prevented from being disengaged from the workbench in the rotating polishing process; and the grinding mechanismis adopted to grind the surface of the automobile plastic part,grinding rods stretch out and draw back according to the surface shape of the automobile plastic part, so that the grinding rods are completely attached to the outer surface of the automobile plastic part, rubber layers are installed on the left end faces of fixing rods and the left end faces of clamping rods. and the phenomenon that the fixing rods and the clamping rods cause clamping damage to the automobile plastic part when clamping the automobile plastic part is prevented.

The invention discloses a self-locking type mold closing mechanism based on a two-plate machine. The mold closing mechanism comprises a fixed mold plate (1), a movable mold plate (2), pull rods (3) and a mold moving oil cylinder (4), wherein the fixed mold plate (1) is fixed at one ends of the pull rods (3), the other ends of the pull rods (3) are sleeved by the movable mold plate (2), and a piston end of the mold moving oil cylinder (4) is connected with the movable mold plate (2) to drive the movable mold plate (2) to move; and the mold closing mechanism further comprises a mold locking structure, the mold locking structure comprises rear screw nuts (5) which are in one-to-one correspondence with the pull rods (3), a large gear ring (6) and a power mechanism for driving the large gear ring (6) to rotate, the rear screw nuts (5) are screwed on the pull rods (3), the outer edges of the rear screw nuts (5) are set to be like gears, and the large gear ring is meshed with the rear screw nuts (5) under the drive of the power mechanism and drives the rear screw nuts to rotate on the corresponding pull rods. According to the mold closing mechanism disclosed by the invention, a mold locking oil cylinder is not required, and energy consumption in mold locking is reduced by self-locking of the mechanism.

The inventiondiscloses a self-locking clamping mechanism of an injection molding machine. The self-locking clamping mechanism comprises a fixed mold plate (1), a movable mold plate (2), pull rods (3) and a mold moving oil cylinder (4), wherein the fixed mold plate (1) is fixed to one end of the pull rods (3), the movable mold plate (2) is arranged at the other end of the pull rods (3) in a sleeving manner, and a piston end of the mold moving oil cylinder (4) is connected with the movable mold plate (2) to drive the movable mold plate (2) to move. The clamping mechanism further comprises a mold locking structure, wherein the mold locking structure comprises rear nuts (5) corresponding to the pull rods (3) in a one-to-one mode, a large gear ring (6) and a power mechanism for driving the large gear ring (6) to rotate, the rear nuts (5) are screwed onto the pull rods (3), the outer edge of each rear nut (5) is in a gear shape, and the large gear ring is meshed with the rear nuts (5) respectively under the drive of the power mechanism and drives the rear nuts to rotate on the corresponding pull rods. The self-locking clamping mechanism does not need a mold locking oil cylinder and reduces the energy consumption of mold locking through self-locking between mechanisms.

The invention discloses a chain block. The chain block comprises a long shaft, a lifting body, a hand chain wheel, a hand pull chain arranged on the hand chain wheel in a sleeving mode and a chain wheel housing covering the hand chain wheel, wherein the lifting body and the hand chain wheel are arranged on the long shaft in a sleeving mode. The chain wheel housing is connected with the lifting body in a relatively rotating mode. The chain wheel housing is provided with a guide mechanism of the hand pull chain. The lifting body comprises a lifting chain wheel arranged on the long shaft in a sleeving mode and a pair of chain guide plates attached and fixed to each other and of a symmetrical structure. The lifting chain wheel is arranged between the chain guide plates. According to the chain block, a lifting chain is guided through the chain guide plate, the guide mechanism guides the hand pull chain, the chain is made to operate smoothly, the service life of the chain is prolonged, and jamming of the chain is prevented.

The invention relates to a manufacturing method of plastic parts for automobiles, which uses a finishing machine, which includes a workbench, a clamping mechanism and a grinding mechanism. The right side of the tightening mechanism is provided with a grinding mechanism, and the clamping mechanism adopted in the present invention clamps the inside of the automobile plastic parts, and the clamping mechanism snaps into the internal thread groove of the automobile plastic parts, and the screw thread inside it The grooves are correspondingly snapped in to prevent the automotive plastic parts from leaving the workbench when they are being rotated and polished, and the surface of the automotive plastic parts is polished by a grinding mechanism. The grinding rod stretches according to the surface shape of the automotive plastic parts, so that It fits perfectly with the outer surface of the automotive plastic parts, and the left end surface of the fixing rod and the clamping rod is equipped with a rubber layer to prevent the fixing rod and the clamping rod from causing jamming when the automotive plastic parts are clamped. injuries etc.

The invention relates to the technical field of construction machinery, and discloses a floor paint scraping device and a floor paint coating robot. Wherein, the floor paint scraping device includes a scraper mechanism, a first adaptive mechanism and a second adaptive mechanism. The second adaptive mechanism is arranged at the adjustment end of the first adaptive mechanism, and the scraper mechanism is arranged at the adjustment end of the second adaptive mechanism. When the scraper mechanism is subjected to an external force, the adjustment end of one of the first adaptive mechanism and the second adaptive mechanism can rotate around the first axis, and the first axis is parallel to the scraping direction of the scraper mechanism, so that the scraper mechanism can By rotating parallel to the ground, the other adjusting end can be raised and lowered in the vertical direction, so that the scraper mechanism can adapt to the undulations of the ground by lifting and lowering. The floor paint scraping device provided by the invention can make the scraper mechanism self-adaptively adjust according to the changes of the ground conditions, ensure the consistency of scraping thickness, and improve the scraping quality and scraping efficiency of the floor paint.

The invention discloses a water tank filter conveyor belt used for a double-sided grinder; it includes a base, a support rod and a connecting arm; support rods are provided at the upper four corners of the base, and connecting arms are arranged in parallel between the support rods; One end of the base is provided with a supporting plate, and the supporting plate is provided with a reduction motor, and the reduction motor is driven and connected with the first sprocket; the position close to both ends of the connecting arm is provided with a rotating rod, and the rotating rod is close to the deceleration One end of the motor is provided with a second sprocket; the rotating rod is connected to the connecting arm in rotation, and the inner side of the rotating rod close to the connecting arm is provided with a roller, and a silk screen is arranged on the roller, and the wire mesh is formed on the rotating rod through the roller. Circular rotation; there are multiple connecting rods between the screens; the chain is driven by a small gear motor to make the screen run, and the support transition of the nylon roller solves the problem of the wire mesh conveyor belt being entangled and broken during operation. The conveyor belt runs more smoothly and flexibly, which improves the filtration efficiency.

The invention discloses a mold opening and closing method for a self-locking type mold closing mechanism based on a two-plate machine. The mold opening and closing method is based on the self-locking type mold closing mechanism, and the self-locking type mold closing mechanism comprises a fixed mold plate, a movable mold plate, pull rods and a mold moving oil cylinder, wherein the fixed mold plate is fixed at one ends of the pull rods, the other ends of the pull rods are sleeved by the movable mold plate, and a piston end of the mold moving oil cylinder is connected with the movable mold plate to drive the movable mold plate to move; and the mold closing mechanism further comprises a mold locking structure, the mold locking structure comprises rear screw nuts which are in one-to-one correspondence with the pull rods, a large gear ring and a power mechanism for driving the large gear ring to rotate, the rear screw nuts are screwed on the pull rods, the outer edges of the rear screw nuts are set to be like gears, and the large gear ring is meshed with the rear screw nuts under the drive of the power mechanism and drives the rear screw nuts to rotate on the corresponding pull rods. According to the mold opening and closing method disclosed by the invention, a mold locking oil cylinder is not required, and energy consumption in mold locking is reduced by self-locking of the mechanism.

The present application relates to a live switching method, device, computer-readable storage medium, and computer equipment. The method includes: acquiring the live stream data corresponding to each access server in multiple historical time periods, and acquiring the live stream data of each access server according to the live stream data. The live video frame state data and / or live audio frame state data corresponding to each historical time period; according to the live video frame state data and / or live audio frame state data corresponding to each access server in each historical time period, each The live stream quality corresponding to the access server; select the target access server according to the live stream quality corresponding to the current playback access server and the live stream quality corresponding to the candidate access server; use the target access server as the current playback access server to Make the playback terminal pull the live streaming data from the target access server. The solution provided by this application can improve the accuracy of live switching.

The invention discloses a mold closing mechanism of a self-locking type two-plate machine. The mold closing mechanism comprises a fixed mold plate (1), a movable mold plate (2), pull rods (3) and a mold moving oil cylinder (4), wherein the fixed mold plate (1) is fixed at one ends of the pull rods (3), the other ends of the pull rods (3) are sleeved by the movable mold plate (2), and a piston end of the mold moving oil cylinder (4) is connected with the movable mold plate (2) to drive the movable mold plate (2) to move; and the mold closing mechanism further comprises a mold locking structure, the mold locking structure comprises rear screw nuts (5) which are in one-to-one correspondence with the pull rods (3), a large gear ring (6) and a power mechanism for driving the large gear ring (6) to rotate, the rear screw nuts (5) are screwed on the pull rods (3), the outer edges of the rear screw nuts (5) are set to be like gears, and the large gear ring is meshed with the rear screw nuts (5) under the drive of the power mechanism and drives the rear screw nuts to rotate on the corresponding pull rods. According to the mechanism disclosed by the invention, a mold locking oil cylinder is not required, and energy consumption in mold locking is reduced by self-locking of the mechanism.

The invention discloses a network security operation and maintenance management system based on a bastion host, belonging to the technical field of operation and maintenance management. The system includes an operation and maintenance personnel security authentication layer, an operation and maintenance data collection layer, an operation and maintenance data storage analysis processing layer, and an operation and maintenance process security management layer; the operation and maintenance personnel security authentication layer is used for the security authentication and login of the operation and maintenance personnel; The operation and maintenance data acquisition layer is used to collect data in the operation and maintenance process; the operation and maintenance data storage analysis processing layer is used to store, analyze and process the data generated in the operation and maintenance process, and optimize the operation and maintenance scene; The operation and maintenance process safety management layer is used to monitor and warn abnormal behaviors in the operation and maintenance process; the present invention can realize the optimization of the operation and maintenance scene, and is more suitable for the operation and maintenance operation of each operation and maintenance personnel, and can be based on Changes in time intervals during operation and maintenance operations are used for security operation and maintenance management.

Provided is a transfer pump (1) for conveying a solid-liquid mixture. The transfer pump comprises a pump body (11), an inner rotor (12), an outer rotor (13), a hinge pin (14), a transmission shaft (15), a bearing assembly (10), an inner magnetic coupling (17), an external magnetic coupling (18) and a thermal insulation and isolation jacket (19), wherein a cavity defined by the outer rotor, the transmission shaft and the bearing assembly is a high pressure cavity (111); a transmission shaft opening (112) is provided on the transmission shaft of the high pressure cavity near a material inlet (110), and the transmission shaft opening is used for allowing the solid-liquid mixture to enter the transmission shaft; and an internal hollow channel (113) is provided between one end of the transmission shaft near the thermal insulation and isolation jacket and the transmission shaft opening, and the internal hollow channel is used for conveying the solid-liquid mixture. The transfer pump enables the solid-liquid mixture pumped into the pump body gap and cavity to flow out of the pump body through internal channel circulation, with no blockage occurring to the the pump body; and a thermal insulation device is provided both inside and outside the pump body, and no phenomenon of pump body blockage due to material crystallization resulting from a decrease in material temperature occurs.

The invention discloses a mold opening and closing method of a self-locking two-plate machine mold closing mechanism, which is based on the self-locking two-plate machine mold closing mechanism. The self-locking two-plate machine mold closing mechanism comprises a fixed mold plate (1), a moving mold plate (2), pull rods (3), a mold movement oil cylinder (4) and a mold locking structure, wherein the fixed mold plate (1) is fixed at one end of each pull rod (3); the moving mold plate is arranged at the other end of each pull rod (3) in a sleeving manner; a piston end of the mold movement oil cylinder (4) is connected with the moving mold plate (2); the mold locking structure comprises rear nuts (5), a big gear ring (6) and a power mechanism driving the big gear ring (6) to rotate; the rear nuts (5) are screwed on the pull rods (3); the outer edges of the rear nuts (5) are arranged into gear shapes; and the big gear ring is engaged with the rear nuts respectively, and drives the rear nuts to rotate on the corresponding pull rods. The method requires no mold locking oil cylinder, and reduces energy consumption of mold locking by utilizing self-locking between the mechanisms.

The invention relates to a novel hydraulic rotation mechanism of a segment erector. The novel hydraulic rotation mechanism comprises a filter, a plunger pump, a check valve, an electric-hydraulic proportional direction valve, an overflow valve, a first pressure reduction valve, a second pressure reduction valve, a pressure gauge, a pressure sensor, a shuttle valve, a balance valve, a three-position ball valve, a two-way overflow valve, an energy accumulator, two hydraulic motors, a brake and a rotary encoder. A balance control module of the hydraulic motors is composed of the balance valve and the two-way overflow valve, and two-way safety protection can be provided; the pressure compensation type electric-hydraulic proportional direction valve with loads is selected for use, and precision and stability of the splicing position are ensured; the hydraulic motors with mechanical braking are adopted, and reliability of rotation movement is ensured; and the hydraulic impact generated in the start, stop and reversing processes of the segment erector is eliminated, the device damage situation such as the situation that the novel hydraulic rotation mechanism gets stuck is effectively prevented in the movement process, and the operation efficiency is improved.