15results about How to "Avoid local wear" patented technology

The utility model discloses a radial tire for engineering machinery, which relates to the field of tire design and comprises a tire tread, a linear pattern wall and a U-shaped pattern wall are fixedly mounted on the periphery of the tire tread, a first reinforcing rib is fixedly mounted between the linear pattern wall and the U-shaped pattern wall, and a second reinforcing rib is fixedly mounted between the linear pattern wall and the U-shaped pattern wall. Side pattern walls are fixedly mounted on the periphery of the tire tread and located on the front side and the rear side of the linear pattern wall, shoulder pattern walls are fixedly mounted on the periphery of the tire tread and located on the front side and the rear side of the side pattern walls, and shoulder grooves are formed in the surfaces of the shoulder pattern walls. The height of the first reinforcing ribs is reasonably arranged, the connecting strength between the pattern walls is enhanced, the overall tear resistance is improved, the second reinforcing ribs are matched, the overall rigidity of the tire is remarkably enhanced, the performance of the tire is improved, and the service life of the tire is prolonged.

The utility model belongs to laser welding machine technical field, concretely is a kind of height adjustable laser welding machine suspension machine, including one sliding block, the lubricating mechanism is arranged in the one sliding block, the lubricating mechanism includes the pump, the pump output end is fixedly connected with one pipe, the ultrasonic wave atomization nozzle is fixedly connected with both ends in the front of one pipe, the pump input end is fixedly connected with three pipes, the three pipes outer wall is fixedly connected with oil tank, the oil tank upper portion is equipped with feed inlet, the feed inlet inner wall is provided with tank cover, the utility model is inhaled by pump input end from three pipes in the lubricating oil inside oil tank, is transported to one pipe, two elbow pipes, then again by ultrasonic wave atomization nozzle, the lubricating oil is atomized into 5-50um fine particle by high frequency vibration usually 15-40kHz and is sprayed to the inner wall of thread hole, to be sprayed to threaded rod, ensure that lubricating medium evenly covers all contact points, avoid local wear.

The utility model relates to a knife sharpening technical field, and disclose an automatic knife sharpening device, including the knife rest of installation for the knife edge part of cutting knife is used to the knife sharpening assembly of grinding, the knife sharpening assembly includes the electromagnet and the knife sharpening stone of knife rest installation through the knife sharpening support, the knife sharpening stone is opposite with the knife edge part of cutting knife and is adjusted the interval of both through the electromagnet, the utility model discloses the interval of the knife sharpening stone and cutting knife is adjusted through the electromagnet, when electrifying, electromagnet core drives push rod and makes the knife sharpening stone close to the knife edge, after power off, reset under the spring action, need not stop the machine to complete grinding, can greatly shorten the knife sharpening time to improve equipment utilization and processing efficiency, and then improve actual capacity, also avoid the body injury and the dust inhalation etc. safety hidden danger brought by manual stop operation simultaneously.

The utility model relates to the technical field of elevator racks, in particular to a multimode-connection rack mechanism for an elevator, which comprises a bottom plate, a driving mechanism is fixedly mounted on the bottom plate, the driving mechanism comprises a protective cover and a rotating rod, the protective cover is fixedly connected to the top end of the bottom plate, the rotating rod is rotatably mounted on the protective cover, and the rotating rod is fixedly connected to the top end of the bottom plate. A rotating rod is fixedly connected to the protective cover, a gear is fixedly connected to the rotating rod, a rack is engaged to the gear, a clamping plate is fixedly connected to the rack, a sliding mechanism is clamped to the clamping plate, fixing blocks are fixedly connected to the protective cover, and an insertion block is connected between the two fixing blocks in a clamped mode. The two gears respectively drive the two racks to drive the sliding mechanism to move, so that loads on two sides of the sliding mechanism are uniformly distributed, and local abrasion of the racks or the gears caused by overlarge stress on one side is favorably prevented.

The utility model relates to the technical field of precision machining, in particular to deburring and polishing equipment for precision components, which is characterized in that a self-locking motor is fixedly arranged on the right side of the bottom of a base, a driving rod is rotatably arranged in the base through a bearing, an output shaft of the self-locking motor is connected with the driving rod, and straight gears are fixedly sleeved on a rotating cylinder and the driving rod; the lifting rod is movably inserted into the rotating cylinder, a connecting rod is hinged to the lower end of the lifting rod, a sliding block is hinged to the lower end of the connecting rod, the driven rod rotationally penetrates through the left side of the bottom wall of the base through a bearing, a rotating disc is fixedly arranged at the upper end of the driven rod, and the sliding block is slidably arranged in a sliding groove formed in the upper portion of the rotating disc. The reciprocating motion can be achieved in the rotating polishing process of the polishing disc, the polishing uniformity is improved, local abrasion and cutting heat accumulation are avoided, the reciprocating motion distance can be adjusted, and the polishing device is used for adapting to the polishing ranges of different workpieces according to requirements.

The utility model discloses a water pump shaft with a multi-sealing structure, which belongs to the technical field of water pump shaft sealing and is characterized in that a first multi-sealing component and a second multi-sealing component are arranged on a rod body of a shaft rod, and the first multi-sealing component and the second multi-sealing component are identical in structure. Multiple sealing operation of the shaft rod is achieved through the first multiple sealing assembly and the second multiple sealing assembly. The first multi-sealing assembly comprises a shaft body, a sealing ring, an outer cover and an inner supporting seat, the shaft body is located on a rod body of the shaft rod, a filler bin is formed in the shaft body, the inner supporting seat is arranged in the middle of the filler bin, and the outer cover matched with the shaft body is arranged at the outer end of the inner supporting seat. The multiple sealing assemblies cooperate to enhance sealing protection of the shaft rod, and liquid leakage is effectively prevented. In a severe environment, the reliability of the water pump shaft is ensured, and sealing failure faults are prevented. The sealing filler uniformly applies pressure through the spring and the ring, the sealing effect is ensured, and local abrasion is avoided. And the integrated and wedge-shaped design of the inner supporting seat and the limiting strip improves the structural stability.

This application relates to the field of fiber optic connector technology, and discloses a push-pull device for fiber optic connectors, comprising: a housing, which is drivenly connected to a ferrule; and a tail sleeve, which is connected to the housing via at least two cross-limiting structures, wherein the at least two cross-limiting structures are asymmetrically distributed in the vertical direction about the axis of the push-pull device; wherein, when the tail sleeve is pushed or pulled, the housing and the ferrule can move along the axis of the push-pull device. The asymmetrical cross-limiting structures can form staggered constraint forces in the radial and axial directions, effectively suppressing tilting or torsion of the housing and tail sleeve due to unilateral force. Furthermore, the asymmetrical distribution can disperse the push-pull force in different directions, avoiding stress concentration or local wear caused by symmetrical structures, reducing loosening or jamming caused by external forces or improper operation, and improving the stability and reliability of the connection between the tail sleeve and the housing. This application also discloses a fiber optic connector.

The invention relates to the technical field of cone crushing equipment, in particular to an online monitoring and on-load regulation and control system and method for an ultra-fine cone crusher, and is characterized in that the online monitoring and on-load regulation and control system comprises the ultra-fine cone crusher, a discharge belt conveyor, an AI visual monitoring device and a central control unit, and a discharge port on-load regulation device is arranged on the ultra-fine cone crusher; a discharging belt conveyor is arranged below a discharging opening of the superfine crushing cone crusher, an AI visual monitoring device is installed on the discharging belt conveyor, and the AI visual monitoring device is used for conducting on-line monitoring on finished products conveyed on the discharging belt conveyor and feeding the finished products back to the central control unit in real time. And the discharge port on-load adjusting device realizes on-load adjustment of the discharge port under the real-time control of the central control unit. According to the invention, an intelligent fine tuning mechanism based on real-time product feedback is provided, online monitoring and on-load regulation can be realized, the product consistency is effectively ensured, the starting rate is improved, the service life of the lining plate is prolonged, and the intelligent cost is reduced.

The application discloses a kind of tapered roller bearing and its preparation process, including bearing inner ring, bearing outer ring, roller and cage, bearing inner ring is made of carburizing steel material, bearing outer ring is made of carburizing steel or high-carbon chromium bearing steel material, bearing inner ring outer wall and bearing outer ring inner wall are all provided with raceway, bearing inner ring and bearing outer ring are all processed by heat treatment process to make raceway surface form carbon potential layer, further including a preparation process, including following flow: S1, after cutting seamless steel tube, it is prepared into bearing outer ring and bearing inner ring by cold extrusion molding;S2, bearing outer ring is processed by heat treatment;S3, bearing inner ring is processed using carburizing heat treatment process and cold treatment process.The application solves the problems that traditional tapered roller bearing inner and outer ring material adaptability is poor, raceway wear resistance and strength performance are uneven, bearing is easy to appear wear deformation and fatigue failure when serving, and the overall heat treatment process lacks pertinence.

The universal power saver comprises a machine body and cables inserted into the two ends of the machine body, pressing plates are movably connected to the four corners of the front face of the machine body through pin shafts, and the sides, away from the machine body, of the pressing plates extend to the two ends of the machine body and make contact with the surfaces of the cables. A transmission structure is arranged on the front face of the machine body, the transmission structure can control a pressing plate to swing and extrude and fix a cable, the transmission structure comprises a connecting frame fixedly connected to the front face of the machine body, the interior of the connecting frame is movably connected with a two-way screw through a bearing, and the two sides of the surface of the two-way screw are both in threaded connection with threaded sleeves. The pressing plates exert physical clamping force on the cable through swinging, compared with a traditional inserting mode, cable falling caused by vibration of a welding machine can be resisted, symmetrical clamping force is formed by the pressing plates distributed at the four corners, and cable deflection or local abrasion caused by uneven single-point stress is avoided.

This invention belongs to the field of pipe jacking machine technology, specifically relating to a pipe jacking machine alignment device, including a support frame, a backrest, and a pushing cylinder. The backrest is mounted on the support frame. Two pushing cylinders are provided, each connected to the support frame via a support plate, which is slidably connected to the support frame. A push plate connects the two pushing cylinders, with through holes and insert plate assemblies cooperating with the pushing cylinders. The cylinder body of the pushing cylinder has slots cooperating with the insert plate assemblies. The push plate is slidably connected to the support frame. A pair of support rails are slidably connected to the support frame. An adjusting frame is slidably connected to the support frame, with an adjusting cylinder between the adjusting frame and the support frame. Both the adjusting frame and the support rails have cooperating inclined blocks. By driving the adjusting frame with the adjusting cylinder, and utilizing the cooperation between the inclined blocks on the adjusting frame and the inclined blocks on the support rails, the height of the pipe support point can be changed, adjusting the axis of pipes of different diameters to be aligned with the machine head axis.

The utility model discloses a mounting mechanism for a wear-resisting plate of a land leveler, and relates to the technical field of land levelers. The utility model relates to a wear-resisting plate used for installing a working device of a land leveler, which comprises a traction frame, a sliding plate and a connecting rod, the wear-resisting plate is placed in the sliding groove of the traction frame bottom plate; the upper plane of the rotary ring is tightly attached to the lower surface of the wear-resisting plate; the locking device is used for connecting the rotary ring, the wear-resisting plate and the traction frame into a whole; the guide bracket is used for extruding the wear-resisting plate between the traction frame bottom plate sliding chute and the upper surface of the rotary ring; the worm gear case is used for providing torque input for the rotating ring and driving the rotating ring to rotate relative to the traction frame. The land leveler wear-resisting plate mounting mechanism can effectively solve the problems existing in the prior art, the use efficiency of the wear-resisting plate is improved, the service life of the wear-resisting plate is prolonged, abrasion of equipment is reduced, the maintenance cost is reduced, and the overall performance and reliability of the equipment are improved.

The invention relates to the technical field of data centers, and discloses a water supply device of an offshore data center cooling system, which comprises a pump protection pipe, a pipeline assembly and a submersible pump, the lower end of the pump protection pipe extends into seawater, the upper end of the pump protection pipe extends above an ocean platform, the pipeline assembly and the submersible pump are arranged in the pump protection pipe, and the submersible pump is fixedly connected to the lower end of the pipeline assembly. The pipeline assembly comprises a plurality of water pipe units which are connected with one another, the water pipe units can move in the axial direction of the interior of the pump protection pipe, and the water pipe units and the submersible pump can be hoisted out of or hoisted into the pump protection pipe section by section from the position above the ocean platform. Through the modular design, the pipeline assemblies can be flexibly combined according to the water depth, the water pipe units are short in length, the requirement for hoisting equipment is low, maintenance can be completed through conventional tools of the platform, divers are not needed during maintenance, all operations are conducted on the platform, and the difficulty and cost are greatly reduced.

The utility model relates to the field of deep groove ball bearing, concretely to a deep groove ball bearing structure of preventing deviation, including bearing outer ring and bearing inner race, is provided with the installation space between bearing outer ring and bearing inner race, is provided with the ball and retainer body in the installation space and is arranged in a circle, the retainer body includes two spliced frames and connecting mechanism, is fixedly connected with support rod on spliced frame, is set up support groove on the outer wall of bearing inner race, through the retainer body structure formed by spliced frame, support rod and connecting mechanism, the ball is limited in two directions in combination with the adaptation groove on bearing inner and outer rings, significantly reduced the deviation risk of ball in high -speed operation, and the support rod is inserted into the support groove of not pass through groove and utilizes the design of increasing contact area of inclined slot, guarantees the support strength and reduces the friction resistance, makes the ball can along the predetermined track steady rolling, avoids the local wear or jamming phenomenon caused by deviation, thereby prolongs the overall service life of bearing.

The invention discloses an assembling method of an oil-leakage-proof press-resistant ultrathin fan, which comprises the following steps: preparing a base, a sliding bearing, a rotor assemblage and a supporting assembly, and integrally forming a supporting column on a middle pipe to obtain the supporting assembly; riveting a supporting assembly at the mounting hole to obtain a first semi-finished product; arranging the FPC and the stator outside the first semi-finished product; the first gap and the second gap which are different in size are defined by the grooves of the supporting columns and the inner wall of the shaft core, lubricating grease of the first gap and the second gap generates high pressure, lubricating oil between the outer surface of the shaft core and the sliding bearing is prevented from overflowing from the second gap, and the sliding bearing is prevented from overflowing through the pumping effect or the labyrinth sealing effect generated by the grooves when the rotor rotates. Lubricating oil is actively prevented from overflowing and leaking along the shaft core, so that a dynamic sealing mechanism is more reliable compared with traditional static sealing, the problem that lubricating oil leaks when an ultrathin fan runs for a long time or in a high-temperature environment is solved, and stability and cleanliness of the fan in long-term running are guaranteed.