12results about How to "Avoid uneven wear" patented technology

The utility model discloses a cable explosion -proof box belongs to cable equipment technical field, including mounting spare and glue injection spare, two mounting spares can be relatively buckled and detachable connection to form explosion -proof box body, and the inside of explosion -proof box body forms sealed cavity, and the both ends of sealed cavity are provided with fixed line passageway, and fixed line passageway one end communicates sealed cavity, and the other end communicates outside, and fixed line passageway and sealed cavity coaxial setting, glue injection spare fixed connection in any mounting spare, and the glue injection passageway of being through being provided on glue injection spare, and glue injection passageway communicates sealed cavity with outside, is used to inject solidified explosion -proof glue in sealed cavity. The cable explosion -proof box through the design of mounting spare and glue injection spare, has realized the assembly of cable explosion -proof box convenientization and has dismantled, has effectively promoted the sealing and explosion -proof performance to cable and junction box interface, has guaranteed the stable safe operation of cable and related equipment.

This utility model discloses a small self-locking coaxial connector assembly, including a male connector and a female connector. The male connector includes a connector and a first pair of inserts with grooves; the female connector includes a second pair of inserts with protrusions and limiting platforms, and an axially movable locking cylinder. The locking cylinder has a thin-walled portion, an inner boss, and a covering portion. An elastic element is provided on the inner side of the thin-walled portion between the limiting platform and the inner boss. During connection, the protrusion is embedded in the groove to form a snap-fit ​​structure. Under the action of the elastic element, the locking cylinder causes the inner boss to abut against the outer periphery of the protrusion from all sides to form a self-locking mechanism, effectively preventing the snap-fit ​​structure from disengaging under external vibration and significantly improving the vibration resistance level. At the same time, the covering portion covers the connection between the connector and the first pair of inserts, making the male and female connectors form an integral structure, further enhancing the connection reliability. The overall structure is compact, self-locking reliable, and has high vibration resistance. It can be easily inserted into small-diameter mounting holes and is suitable for high-density installation scenarios.

This invention relates to a method for randomly setting and controlling the maximum filling amount of the pickling and rolling line inlet looper. When the start and end welding of the pickling and rolling line inlet strip is completed, the inlet looper begins filling. The maximum filling amount of the inlet looper at the end of each filling operation is set according to the following formula: S 设 =[S 中 +(0.5-R)πD / (2×L) 100% )]×100%, the sheave diameter is D, and the total length of the loop at 100% looping is L. 100% S 中 Set a median value for the maximum set size, with R being a random value between (0, 1), and S... 设 This formula, set for each filling, can be directly maintained in the program, automatically calculating the maximum filling value before each filling. This effectively avoids uneven and excessive wear of the wear-resistant blocks of the loop drive sheave, improves the stability of the tension of the inlet loop strip, avoids alarm shutdowns caused by excessive tension fluctuations, and also increases the service life of the wear-resistant blocks, reduces spare parts consumption, and lowers production costs.

The utility model relates to brake mounting support technical field discloses a main shaft brake brake caliper mounting support, its installation is on the main shaft mechanism, it is used for installing brake body, the main shaft mechanism has the brake disc, and mounting support includes: the mounting frame is set up on the main shaft mechanism, one side of mounting frame has the deflection slot, the deflection plate is rotatably installed in the deflection slot, one side of deflection plate has the first tooth slot, and the brake body sets up one side of deflection plate, just can realize the clamping position of brake body and adjust, make brake body change the brake clamping position of brake disc on the main shaft mechanism, avoid the clamping position of brake body to the brake disc and cause the uneven wear of brake disc to appear, be convenient for not needing to dismantle and install brake body and can realize the change of brake body brake clamping position, make brake disc produce even wear, and the operation is simple, quick.

This utility model discloses a twist hook adaptable to ropes of varying thicknesses, comprising a fixing base and a winding unit. The winding unit includes a top cover, a drive component snapped into the inside of the top cover, a stator connected to the drive component via a rope drum, and a clutch component snapped between the stator and the top cover. The clutch component is used to cooperate with the top cover to prevent one-way reverse rotation. The drive component is used to cooperate with the top cover to drive the rope drum to rotate and wind the rope. The clutch component is fixedly connected to the stator. The rope drum is provided with at least two sets of rope threading structures, which are used to thread at least two different rope diameters respectively. The winding unit is connected to the fixing base via the stator. This utility model ensures the stability of the connection between the components, effectively preventing the components from loosening and falling off during the transfer process, thereby greatly saving assembly time, ensuring smooth assembly, making rope threading smoother, saving rope threading time, and ensuring the normal daily use of the twist hook.

This utility model discloses an environmentally friendly adhesive centrifugal degassing device, including a protective box. A turntable is installed in the middle of the protective box, and a servo motor is installed in the middle of the bottom of the protective box. A centrifugal frame is fixed on the upper end of the turntable, and the centrifugal frame has inclined structures at both ends. The beneficial effects are: this utility model, by setting four sets of protective support mechanisms composed of limiting rods, limiting seats, and limiting wheels on the outside of the rotating cylinder, ensures the rotation performance of the rotating cylinder during centrifugal degassing. It also provides auxiliary support to the rotating cylinder, preventing uneven wear at the connection between the cylinder and the centrifugal frame due to uneven force caused by the cylinder being suspended in the air. This ensures the stability of the cylinder during rotation, resulting in not only good degassing effect but also long service life and strong functionality, exhibiting high performance.

The invention discloses a regulator for regulating a polyurethane polishing pad and a chemical mechanical polishing system, and belongs to the technical field of semiconductor manufacturing CMP. The regulator comprises a titanium alloy base material, and the working surface of the titanium alloy base material is divided into a coarse regulation area, a fine regulation area and a guide and discharge area which are arranged in a step shape in the radial direction to form a radial gradient pressure regulation structure. The coarse adjustment area is provided with an elastic buffer layer and coarse abrasive particles and is used for pressure equalizing and macroscopic finishing; fine abrasive particles are embedded in the fine adjustment area at a specific inclination angle to form a multidirectional cutting edge which is used for adapting to the elasticity of the pad and maintaining the microstructure; the guide and discharge area is provided with a spiral slurry guide groove and nano bulges on the inner wall of the groove to synergistically realize rapid slurry discharge and deep cleaning of pores; the surface of the regulator is covered with a temperature-sensitive self-adaptive coating, the hardness of the regulator changes along with the temperature to be matched with the temperature change characteristic of the polishing pad, and an active heat dissipation channel is integrated in the base material. According to the system, the problems of uneven abrasion, pore blockage, abrasive particle falling and thermal mismatch of the polyurethane pad are solved, the wafer grinding flatness is remarkably improved, the scratch rate is reduced, and the service life of the polishing pad and the service life of a regulator are prolonged.

The utility model relates to the technical field of a connecting rod bushing rotation wear test device, and solves the problems that a bushing easily shakes on the surface of a rotating rod due to centrifugal force generated by rotation, a structure is lacked for limiting installation of the bushing, and the wear test accuracy is prevented from being influenced. The device comprises a workbench, a driving assembly is fixedly connected to the top surface of the workbench, a polishing structure is arranged in the workbench, a magnetic suction pad is fixed to the position, adjacent to the polishing structure, of the top surface of the workbench, and a detachable protective cover is connected to the top surface of the magnetic suction pad in a magnetic suction mode. The surface of the workbench is fixedly connected with a frame, the frame is arranged on the top face of the workbench in a striding mode and fixes detection equipment, the driving assembly comprises a driving motor, a mounting rod, an annular air bag, an extrusion plate and an air inlet one-way valve, the driving motor is fixed to the top face of the workbench, the output end of the driving motor is connected with the mounting rod, and the annular air bag is fixed to the surface of the mounting rod. Multiple extrusion plates are distributed on the outer surface of the air bag in an annular array.

The tractor comprises a traction seat, an opening is formed in the front end of the traction seat, and a base is arranged on the lower portion of the opening. A pin shaft capable of moving up and down is further arranged in the opening, an operating piece is arranged on the upper portion of the traction base, and the operating piece controls the pin shaft to move up and down. The pin shaft comprises an upper shaft section and a lower shaft section, and the lower shaft section is rotationally connected with the upper shaft section. According to the tractor, the pin shaft is divided into the upper shaft section and the lower shaft section, the upper shaft section is used for being connected with the operating piece, the lower shaft section is arranged to be rotationally connected with the upper shaft section, namely, the lower shaft section can rotate, when the connecting ring oscillates, the pin shaft can be driven to rotate, and then the friction position between the connecting ring and the pin shaft is continuously changed; all parts of the pin shaft can be randomly abraded under the condition that the main body structure and the performance are not influenced, so that excessive local abrasion is avoided, and the service life of the pin shaft is prolonged.

The present application relates to the technical field of flip-flop screen, in particular to a combined mine flip-flop screen, which comprises a flip-flop screen body, a screen mesh, a cover body fixed above the screen mesh, and a feeding hopper installed above the cover body, the bottom end of the feeding hopper is communicated with the inside of the cover body through a distribution box, a plurality of screening channels are arranged in the cover body, an adjusting assembly is used to adjust the path length of the screening channels, a uniform material assembly is arranged in the distribution box, and the uniform material assembly is used to make the material fall uniformly onto the screen mesh; the present application can make the material of the feeding port fall uniformly in front of the screen surface, improve the utilization rate of the screen surface, avoid the non-uniform wear of the screen plate, prolong the service life of the screen plate, adjust the movement path length of the material on the screen surface when the feeding amount increases, adjust the residence time of the material on the screen surface, increase the number of times that the unit particle contacts the screen hole, provide more opportunities for the fine particle material to pass through the screen hole, improve the screen passing rate of the material, and ensure the grading accuracy of the material.

This disclosure relates to a non-metallic elastic sealing ring, a soft-seal oil pump, and a sealing method. The non-metallic elastic sealing ring includes a non-closed ring body; the upper surface of the non-closed ring body is provided with a wedge-shaped groove structure; the non-metallic elastic sealing ring is disposed on the plunger of the soft-seal oil pump. During the upstroke, the pressure of the liquid on the upper part of the non-metallic elastic sealing ring acts on the wedge-shaped groove, decomposes into a circumferential force, causing the sealing ring to expand and deform, completely fitting with the pump barrel, strengthening the seal between the plunger and the pump barrel, maintaining pump efficiency, and simultaneously playing a role in scraping sand and scale, preventing pump jamming; during the downstroke, after the pressure on the upper and lower surfaces of the plunger is balanced, the sealing ring contracts back to its initial state, the gap between the plunger and the pump barrel increases, reducing the downward resistance caused by the high viscosity of the liquid during the downstroke, slowing down the bending of the sucker rod, extending the service life of the rod tube, extending the pump inspection cycle, and reducing production costs.