69 results about "Abrasion (mechanical)" patented technology

The invention relates to the field of high polymer materials, and discloses a high-wear-resistance elastomer sole material and a preparation method thereof.The material comprises an elastomer matrix and surface-modified boron nitride nanosheets; the elastomer matrix comprises a first dynamic network and a second dynamic network which are formed through crosslinking of dynamic covalent bonds, and the first dynamic network and the second dynamic network are based on different types of dynamic covalent bonds and have different dissociation activation energy barriers or external stimulus response conditions. The surface-modified boron nitride nanosheet and the second dynamic network form a selective interface enhancement effect; the preparation method comprises the steps of polymer functionalization, nanosheet surface modification, melt blending reaction net forming, forming and the like. The obtained elastomer sole material not only has excellent wear resistance and mechanical properties, but also can realize self-repair of graded response aiming at damages of different degrees, and the service life of the material is remarkably prolonged.

The invention relates to the technical field of energy-saving door and window machining, and particularly discloses an energy-saving door and window machining manipulator device which comprises a manipulator, a first guide rod, a recording mechanism and a clamping jaw. The recording mechanism is arranged at the top end of the right side of the mechanical arm, and the clamping jaw is arranged at the right end of the recording mechanism. The device effectively overcomes the defect that a traditional detection method cannot quantitatively evaluate the wear process of the sliding rail, can accurately record the change rule of the friction characteristic of the sliding rail under different opening and closing times, visually reflects the wear critical point through the fluctuation characteristic of the corrugated line, and can accurately predict the failure threshold value of a hardware system. Test data not only reveals the corresponding relation between sliding rail abrasion and opening and closing times, but also can provide a scientific basis for optimizing hardware material pairing and improving a lubricating scheme, the durability design level of energy-saving door and window products is remarkably improved, the technology span from passive detection to active prediction is achieved, and the method is suitable for popularization and application. And a durability test result has a higher engineering guidance value.

The invention provides a steel wire rope take-up tension self-adaptive adjusting mechanism, and relates to the technical field of steel wire rope production and machining. The mechanism comprises a bearing frame, a tension self-adjusting mechanism, an arc-shaped detection plate, a take-up device, a self-adaptive early warning mechanism, an early warning block and a cleaning piece. The tension self-adjusting mechanism detects the change of the winding diameter of a steel wire rope through an arc-shaped detection plate so as to control fine adjustment of the distance between tensioning wheels, and the tension is adjusted in a self-adaptive mode along with the change of the winding diameter through a mechanical linkage structure. The self-adaptive early warning mechanism triggers signals through centrifugal displacement of an early warning block, and mechanical locking is achieved when the steel wire rope is taken up. The cleaning piece can clean oil stains and impurities on the surface of the steel wire rope and relieve the abrasion process; the mechanism effectively solves the problems that traditional take-up equipment is large in tension fluctuation, lacks an effective emergency protection mechanism and is not thorough in steel wire rope cleaning, and has the advantages of being high in stability and high in response speed.

The invention relates to a shield tunneling machine tunneling construction method for stratums with different sand contents, which comprises the following steps of: S1, investigating characteristic parameters, including types, sand contents and mechanical parameters, of stratums to be tunneled; s2, installing an ultrasonic-assisted hob system integrated with an ultrasonic excitation module; s3, ultrasonic parameters and shield tunneling parameters are set according to the characteristic parameters of the stratum; and S4, shield tunneling is started, ultrasonic parameters and shield tunneling parameters are adjusted in real time through the cooperative control module, vibration, hob abrasion and mud cake forming conditions in the construction process are monitored, and in the tunneling process, the operation mode of the cooperative control module is that on the basis of multi-dimensional monitoring data collected by a vibration sensor, an abrasion detection device and a slag sample analysis sensor, the ultrasonic parameters and the shield tunneling parameters are adjusted in real time. Parameters are dynamically adjusted according to stratum types and sensitive area requirements, the single adjustment amplitude and adjacent adjustment intervals of the parameters are controlled, the adjustment effect is verified in real time through a sensor, and closed-loop control over parameter adjustment and monitoring is formed.

The invention provides aluminum profile polishing equipment, and relates to the technical field of mechanical equipment, the aluminum profile polishing equipment comprises a sanding assembly, the sanding assembly is provided with an abrasive belt mounting base, the upper end of the abrasive belt mounting base is connected with an abrasive belt driving motor, and the abrasive belt driving motor is connected with a driving main wheel; an abrasive belt pressing part and a vibration grinding part are arranged on the two sides of the middle of the forked frame body correspondingly, the abrasive belt pressing part is used for pressing the abrasive belt downwards in the process of driving the abrasive belt to grind, and the attaching force of the driving abrasive belt and a grinding tool is increased. The polishing device has the beneficial effects that the abrasive belt pressing and polishing component and the vibration polishing component are integrated, large-area efficient polishing can be achieved, complex areas such as grooves and welding seams can be precisely processed through the vibration abrasive disc, multiple times of turnover of workpieces are avoided, the first tensioning rod body and the second tensioning rod body are arranged for dual-rod cooperative tensioning, and the polishing efficiency is improved. Rapid and large-range tensioning adjustment is realized; and trace elongation caused by abrasion can be automatically compensated, the tension is kept constant, and the polishing precision and efficiency are powerfully guaranteed.

The invention belongs to the field of new materials, and particularly relates to a super-hydrophobic composite coating with mechanical firmness, self-cleaning property and high wear resistance, a method and application thereof. According to the preparation method, epoxy resin (E51) is adopted as a binder, quartz sand, modified F-TiO nano particles and SiO nano particles are combined, and the quartz sand / F-TiO / SiO coated EP super-hydrophobic composite coating of a double-layer structure is prepared through a simple and convenient blade coating-spraying process. According to the coating, through multi-scale hierarchical structure design and low surface energy modification, a static water contact angle of 151 degrees and 1t are achieved; the rolling angle of 5 degrees shows excellent self-cleaning performance on liquid and solid pollutants. A mechanical stability test shows that in a Taber abrasion test, the coating still keeps good hydrophobicity after being abraded for 3000 cycles under the load of 250 g and abraded for 600 cycles under the load of 750 g; after 500 times of adhesive tape stripping experiments, the static water contact angle is still greater than 120 degrees, the rolling angle is as low as 5 degrees, and excellent wear resistance and substrate adhesion are shown.

The device comprises a polishing module, a polishing displacement module, a polishing base table and a control system, a polishing head of the polishing module is designed to be in a tooth shape meshed with a polished gear, the polishing displacement module drives the polished gear to accurately reach a polishing station, and the polishing base table is arranged on the polishing base table. An air cylinder of the polishing module drives a polishing head to move, make meshed contact with a polished gear and apply polishing pressure, a main shaft motor of the polishing module drives the polished gear to rotate and drives the polishing head to rotate through the meshing effect, meanwhile, a polishing displacement module drives the polishing head to reciprocate along the Z axis, and therefore synchronous and uniform contact of multiple tooth surfaces is achieved. According to the invention, the gear working surface is polished with high quality and high efficiency in cooperation with the polishing solution with oxidation and complexing synergistic effect, and compared with the prior art, the polishing quality is high by utilizing chemical and mechanical synergistic effect; the polishing head is large in contact area and high in polishing efficiency; the polishing head is small in abrasion and high in polishing stability.

A fan impeller made of complex three dimensional composite structures which results in the combination of mechanical properties and abrasion and erosion resistance which allows for improved utility, functionality, reliability, cost, and safety for the user. The specific composite structures vary based on fan size and design as well as the gas and application requirements relative to such as but not limited to temperature, corrosivity, abrasiveness, etc., and may include but are not limited to combinations of fibers, resins, 3D printed reinforcement structures, cast reinforcement structures, and / or fabricated reinforcement structures.

The application relates to the technical field of transformers, in particular to a transformer structure capable of reducing mechanical abrasion, which comprises a transformer box body, a box cover, bolts, nuts, a first through hole arranged on the box body, a second through hole arranged on the box cover, a support frame fixedly connected to the box cover at the bolt mounting position, a support plate rotatably connected to the support frame, a first mounting hole arranged on the support frame, a second mounting hole arranged on the support plate, a sealing arrangement at the contact surface of the support frame and the support plate, a threaded rod on the bolt sequentially penetrating through the second mounting hole, the first mounting hole, the second through hole and the first through hole and being threadedly connected with the nut, a clamping sleeve arranged at the first through hole of the box body and used for limiting the rotation of the nut, a clamping plate detachably connected between the support plate and the head of the bolt and forming a structure capable of synchronously rotating the support plate and the bolt, and a limiting mechanism arranged between the support frame and the support plate and used for limiting the one-way rotation of the support plate. The application reduces the fretting abrasion generated at the bolt connection position and enables stable connection of the bolt connection position.

This utility model discloses a wood product paint surface abrasion resistance testing device, including a base box and a connecting seat set on the top of the base box; a clamping assembly including a placement platform slidably connected to the surface of the connecting seat, a support plate lifted and connected to one side of the end of the placement platform, a fixing plate fixed to one side of the support plate, a bottom plate fixed to one end of the placement platform and located directly below the fixing plate, a lead screw fixed to the surface of the bottom plate and slidingly passing through the fixing plate, and two screw sleeves threaded to the surface of the lead screw and distributed on the upper and lower sides of the fixing plate; through the designed side rail, fixing plate, bottom plate, lead screw and screw sleeves, the height of the support plate and clamping plate can be adjusted, so that the support plate and clamping plate can always be slightly lower than the wood product, and the friction head is less likely to mechanically interfere with the clamping assembly during the friction with the wood product, thus facilitating the normal use of the testing device.

The invention relates to the technical field of anti-abrasion treatment, and particularly discloses an anti-abrasion treatment method for a CEMS sampling probe. The method comprises the following steps: accurately measuring geometric parameters and an erosive wear area of the probe rod; cleaning the to-be-protected surface of the probe rod; customizing an aluminum oxide outer sleeve; the sleeve is arranged outside the probe rod in a sleeving mode; the annular gap is filled with pre-compressed graphite rope filler, and tight filling is formed through mechanical dense adjustment; carrying out fixed inspection; high-temperature-resistant sealant is smeared at the two ends of the sleeve; and finally curing and mounting. The composition comprises an aluminum oxide outer sleeve, a graphite rope filler and a high-temperature-resistant sealant. According to the method, through the composite protection structure, the scouring resistance of the CEMS sampling probe in the high-temperature and high-dust flue gas environment is remarkably improved, and the method has the advantages that the operation process is clear, and construction is convenient and fast; the prepared wear-resistant structure can effectively prolong the service life of the probe rod by 4-5 times, greatly improve the operation stability of equipment and reduce the maintenance cost.

The utility model discloses a low-abrasion numerical control roll grinder electromagnetic clamping device, and particularly relates to the technical field of numerical control roll grinders, the low-abrasion numerical control roll grinder electromagnetic clamping device comprises a shell and an electromagnetic clamping assembly, the electromagnetic clamping assembly is installed on the shell, and the electromagnetic clamping assembly comprises an electromagnetic machine, a first connecting plate, a second connecting plate, a first electromagnetic chuck and a second electromagnetic chuck; the electromagnetic machine is fixedly installed on one side of the interior of the shell, the output end of the electromagnetic machine is fixedly sleeved with the first connecting plate, and the first connecting plate and the second connecting plate are fixed through bolts. The roller is placed on one side of the first electromagnetic chuck, the electromagnetic machine works to generate a magnetic field, magnetic lines penetrate through the first electromagnetic chuck and the roller to form a closed loop, the roller is firmly attracted to the surface of the first electromagnetic chuck, pure magnetic attraction exists between the roller and the surface of the first electromagnetic chuck, and sliding or friction of a mechanical clamping part is avoided; and operation is easy, and low-abrasion clamping can be conveniently conducted on the roller.

The utility model discloses a kind of erosion-resistant, abrasion-resistant mechanical sealing structure, relate to mechanical sealing technical field, including main shaft and fixed sleeve set on the shaft sleeve of main shaft, the shaft sleeve is fixedly installed with outer end cap, annular base is installed in outer end cap inside, annular base inside is installed with mounting seat, mounting seat inside is installed with wear-resistant sealing seat;The annular base inside is also installed with the stationary ring that can be displaced along the main shaft axis direction, stationary ring is sealed with mounting seat cooperation, and the inner end of shaft sleeve is installed with the rotating ring that is sealed with stationary ring rotation cooperation, shaft sleeve, rotating ring, stationary ring, wear-resistant sealing seat, mounting seat, annular base and outer end cap are cooperated to form cooling cavity.The utility model can effectively play erosion-resistant, abrasion-resistant, so that mechanical sealing structure can be more stably normal work, prolong the service life of mechanical sealing structure.

The utility model relates to the technical field of doorsill beams, in particular to an automobile light-weight doorsill stiffening beam which comprises an outer plate, an inner plate is welded to one end of the outer plate, second partition plates are fixedly connected to the outer sides of one ends of the outer plate and the inner plate, and a first partition plate is fixedly connected to one end of each second partition plate. One ends of the first partition plates on the left side and the right side are fixedly connected with one side of the outer wall of the outer plate and one side of the outer wall of the inner plate correspondingly, sandwich foam is fixedly connected to one end of the outer plate and one end of the inner plate, and a reinforcing structure is arranged on one side of the outer plate. Through cooperation of the outer plate, the inner plate and the reinforcing structure, when the device is used, the first anti-corrosion and anti-abrasion layer and the second anti-corrosion and anti-abrasion layer are made of polyurethane coating, the polyurethane coating has good flexibility, high binding power, abrasion resistance, excellent mechanical performance and good anti-corrosion performance, and the abrasion resistance and corrosion resistance of the threshold beam can be conveniently improved; the doorsill beam is prevented from being abraded or corroded, and the strength is conveniently guaranteed.

The invention relates to the technical field of mineral processing and mineral preparation equipment optimization, and discloses a Markov chain-based ball mill ball supplement parameter determination method, which comprises the following steps: determining the rock abrasion degree: acquiring the abrasion degree parameter of to-be-ground ore, the parameter being used for representing the abrasion capability of the ore to a steel ball, and determining the abrasion degree of the to-be-ground ore to a steel ball; a basic basis is provided for subsequent steel ball abrasion rule analysis; and performing numerical simulation on a steel ball abrasion evolution rule: combining physical and mechanical parameters of the ore and the steel ball based on the ore abrasion degree parameter obtained in the step a. The method comprises the following steps: establishing association between ore characteristics and steel ball abrasion through a rock abrasion degree test, constructing a steel ball abrasion evolution model by using a discrete element method, converting the size fraction of a steel ball into a Markov chain state, calculating a transition probability matrix in a ball supplementing period, and finally determining ball supplementing parameters by combining ideal and actual ball load gradation difference and a ball supplementing principle. The steel ball abrasion transfer trend can be dynamically predicted, and the over-compensation or under-compensation phenomenon is avoided.

The utility model provides wear resistance detection equipment for a massager. The wear resistance detection equipment comprises a workbench, a rotary table and a detection assembly, the rotary table comprises a carrying disc, a follow-up shaft and a jacking manipulator, a through hole is formed in the carrying disc, a jig is arranged in the through hole, a profiling hole is formed in the jig, and a butt joint groove is formed in the follow-up shaft; the detection assembly comprises a pneumatic sliding table, a motor, a main shaft, a connecting shell, a detection cover, a reset spring and a self-locking rod, and the main shaft is provided with a plugging hole and an accommodating groove which are communicated with each other; a grinding disc is arranged in the detection cover, and a conical hole is formed in the grinding disc. After the detection cover descends, the main shaft is in butt joint with the follow-up shaft, the carrying disc can be driven to rotate, to-be-detected massagers on the carrying disc make contact with conical holes of the grinding disc, the grinding disc rubs the massagers when the carrying disc rotates, whether the abrasion resistance of the massagers reaches the standard or not is judged according to the abrasion condition, a plurality of massagers can be clamped in the carrying disc, and the jig is lifted through the jacking mechanical arm. And the fixed height of the massager is adjusted to adapt to the detection requirements of massagers with different sizes.

The invention relates to the technical field of blade repairing treatment, discloses a cold spraying repairing method for an aluminum alloy blade and aims to solve the problems that a base body is prone to being damaged and the performance of a repairing layer is poor in an existing repairing method. The method comprises the steps of mechanical polishing, cold spraying, mechanical coping and follow-up protection, specifically, surface inspection, pretreatment, spraying operation and multi-dimensional inspection are sequentially conducted on cold spraying, 501.1-mark pure aluminum-Al2O3 mixed powder is adopted, after positioning and precise parameter spraying are conducted through a special tool, coping is conducted till the molded surface requirement is met, and then micro-arc oxidation and paint spraying protection are conducted. The method is low in cold spraying temperature, free of damage to a base body, excellent in repairing layer performance, high in precision, high in corrosion resistance and abrasion resistance and stable and reliable in process, the operation and maintenance cost can be remarkably reduced, and the service life of the paddle is prolonged.

The utility model provides a high and low temperature alternating environment wear simulation experiment machine which comprises a rack, and a heating mechanism, a wear mechanism, a blowing cooling mechanism and a clamping mechanism which are arranged on the rack, and the heating mechanism comprises an electromagnetic induction heater arranged on the rack; the abrasion mechanism comprises a grinding machine installed on the machine frame and a first driving mechanism connected with the grinding machine to drive the grinding machine to move up and down, the clamping mechanism comprises a clamp installed on the machine frame and a second driving mechanism driving the clamp to move, and the blowing cooling mechanism is installed on the machine frame and used for conducting blowing cooling on grid sections on the clamp. The high and low temperature alternating environment abrasion simulation experiment machine can consider factors such as reciprocating heating and cooling, temperature monitoring, contact load, mechanical abrasion and cyclic experiments, and can reduce actual working conditions of abrasion of quick-wear parts in metallurgical processes such as sintering and pelletizing in a high-precision manner, so that the influence effect of a coating technology on the service life of a grid section is verified.

The utility model provides a novel wear-resistant pin shaft, and belongs to the technical field of mechanical parts. The problems that a traditional pin shaft is prone to abrasion in the long-term use process, an effective lubricating structure is lacked, and the service life of equipment is shortened are solved. The novel wear-resistant pin shaft comprises a pin shaft body, a locking assembly which is arranged on one side of the pin shaft body and used for fixing, a mounting block is arranged at the other end of the pin shaft body, a wear-resistant sleeve used for protecting the pin shaft body is arranged on the pin shaft body in a sleeving mode, and a supporting assembly used for supporting the wear-resistant sleeve is arranged on the pin shaft body. The utility model has the advantage that the wear resistance and the lubricity are improved.

The utility model relates to the technical field of sealing elements, in particular to a corrosion-resistant pump mechanical sealing element which comprises a movable ring, the movable ring comprises a frame, a through hole is formed in the surface of the frame, a screw is in threaded connection with the interior of the through hole, a lining is in threaded connection with one end of the screw, a fixing hole is formed in the surface of the lining, the screw is connected with the fixing hole, and a first groove is formed in the surface of the movable ring. A first groove is formed in one end of the static ring, a first friction ring is sleeved with the first groove, the surface of the first friction ring is smooth, the first friction ring is rotationally connected with the static ring, a second groove is formed in one end of the static ring, a second friction ring is inserted into the second groove, and the first friction ring and the second friction ring are rotationally connected. The mechanical sealing piece can provide a better sealing effect, the possibility of liquid or gas leakage is reduced, the safety of equipment and the protection of the environment are ensured, the friction coefficient of many corrosion-resistant materials is low, abrasion can be reduced, and the service life of the sealing piece can be prolonged.

The invention relates to the technical field of coating robots, and discloses a coating robot for coating insulating paint, which comprises a robot, brackets are symmetrically and fixedly mounted on the robot, walking mechanical arms are rotatably mounted on the brackets, and driving motors are fixedly mounted in the brackets. The side plates and the guide wheels abut against the cable, so that the contact area of the walking wheels and the cable can be increased, the walking wheels cannot swing when encountering strong lateral wind, the robot can be prevented from swinging, the coating effect can be prevented from being affected, the side plates and the guide wheels can be reset when the robot leaves a strong lateral wind area, and the coating effect is improved. The side plates and the guide wheels are separated from the cable, unnecessary abrasion to the side plates and the guide wheels is avoided, cable areas where the walking wheels, the side plates and the guide wheels are about to pass can be dried, the situation of slipping caused by moisture on the surface of the cable can be avoided, and the walking stability of the walking wheels is improved.

The invention discloses a method and system for testing wear resistance of a washing machine standard sample, and relates to the field of washing machine performance tests.The method comprises the steps that a regular super-hydrophilic stripe pattern is constructed on the surface of standard washing cloth through a mask spraying technology, and a fluorescent tracer sensitive to mechanical wear is evenly loaded on fibers through an impregnation method; a patterned fluorescence function standard sample is obtained; initially weighing the patterned fluorescence function standard sample, and respectively acquiring an initial appearance image and an initial fluorescence image under a standard light source and ultraviolet light; mixing the patterned fluorescent function standard sample with the standardized simulation piece to form a mixed load; and putting the mixed load into the washing machine for standard washing. The method provides more comprehensive data support for the design optimization of the washing machine by quantifying the function decline and microscopic damage of the fabric, improves the authenticity simulation of the test load, and solves the technical problem that the physical wear and the function characteristic decline cannot be evaluated at the same time in the prior art.

The utility model relates to a wear-resistant moisture-proof cable. Belongs to the technical field of cables, the special performance of the cable conductor, such as tensile resistance, bending resistance, moisture resistance and extrusion resistance, is improved by changing the structure of the traditional cable core, two sealing blocks are assembled into a circular structure, the middle part is provided with an installation area, the installation area is internally provided with a main wire core, and the outer side of each sealing block is provided with an extrusion layer. The outer side of the extrusion layer is provided with a buffer layer, the outer side of the buffer layer is provided with a steel tape armoring layer, the outer sheath is arranged on the outer side of the steel tape armoring layer, and the outer side of the steel tape armoring layer is provided with wear-resistant protrusions which extend to the outer side of the outer sheath. The compactness of the cable core is enhanced, the tensile resistance is enhanced, the strength of the cable is improved, the stress of the cable is symmetrical and balanced, and the damage to the cable caused by stress concentration is not easy to generate. The problem that the service life of the cable is short due to core breakage is well solved, the mechanical strength and the flexibility of the cable are improved, and the service life of the cable is prolonged.

To provide a hinge connection type component having excellent durability against abrasion and sticking and an improved service life.SOLUTION: The present invention relates to a hinged component (1) having one degree of freedom, the hinged component comprising at least two concentric rings (10, 20) rotatable relative to each other about a central axis, wherein: These at least two concentric rings define a friction interface (40) between them and comprise an outer ring (10) having an inner friction surface (12) and an inner ring (20) having an outer friction surface (22) and an inner friction surface (24) intended to receive a movable member (2) guided in rotation, oscillation and / or translation by the component (1).SELECTED DRAWING: Figure 4

The invention relates to a preparation method of a high-stability low-wear disc brake friction plate, which comprises the following steps of: mixing a resin-assistant-hydroxypropyl chitosan compound which is obtained by special modification of phenolic resin and is used as an effective component with other raw materials and auxiliary materials, pressing into a green body, and carrying out graded curing. Through particle size matching of the components, a complete particle size chain from coarse to fine is formed, hardness change uniformity is improved, wear resistance is guaranteed, the contradiction between wear resistance and protection of mating plates can be balanced, through graded curing treatment, it is guaranteed that the mechanical property and wear resistance of a blank are stable, a stable'resin-hard phase 'bonding interface is constructed, and the service life of the blank is prolonged. The heat conductivity is larger than or equal to 18 W / (m.K), the friction coefficient fluctuation ratio is smaller than or equal to 0.04, and the normal-temperature abrasion rate is smaller than or equal to 0.5 * 10 <-7 > cm / (N.m).

This invention belongs to the field of new materials, specifically relating to a mechanically robust, self-cleaning, highly wear-resistant, and superhydrophobic composite coating, its method, and its applications. Using epoxy resin (E51) as a binder, this invention combines quartz sand, modified F-TiO₂ nanoparticles, and SiO₂ nanoparticles to prepare a two-layer quartz sand / F-TiO₂ / SiO₂@EP superhydrophobic composite coating through a simple scraping-spraying process. This coating, through multi-scale hierarchical structural design and low surface energy modification, achieves a static water contact angle of 151° and a roll-off angle of <5°, exhibiting excellent self-cleaning performance against liquid and solid contaminants. Mechanical stability tests show that the coating maintains good hydrophobicity after 3000 cycles of wear under a 250 g load and 600 cycles of wear under a 750 g load in the Taber abrasion test; after 500 tape peel tests, the static water contact angle is still greater than 120° and the roll-off angle is as low as 5°, demonstrating excellent abrasion resistance and substrate adhesion.

The invention discloses a slope protection soil nail mechanical hammering installation tool in the technical field of slope protection engineering application tools, and the slope protection soil nail mechanical hammering installation tool comprises a hammering rod and a hammering head, and further comprises a clamping assembly, and the clamping assembly pushes a clamping piece of the clamping assembly through hydraulic oil to clamp the hammering head; the liquid storage assembly is used for injecting hydraulic oil into the clamping assembly or receiving the hydraulic oil discharged by the clamping assembly; the valve assembly is used for cutting off hydraulic oil circulation between the liquid storage assembly and the clamping assembly; hydraulic oil is used for pushing the clamping piece to clamp the hammering head, then the hydraulic oil is cut off, the volume of the hydraulic oil is fixed, the hydraulic oil serves as a part of clamping and supporting the hammering head, and no gap is generated between the hammering head and the clamping piece after clamping; therefore, the risks that in the using process, the hammering head shakes relative to the clamping piece, the hammering head and the clamping piece move relative to each other, abrasion is caused, finally, the strength of components is reduced, and the components are directly cracked in the working process are avoided.

The application relates to the technical field of industrial data processing, and provides an Internet of Things equipment control method based on digital twinning. Work parameters in industrial production are acquired through a sensing device; an industrial production process of production equipment is modeled based on the work parameters, a temperature field model representing heat conduction and a deformation model representing a mechanical vibration state are sequentially generated, and a deformation compensation parameter is generated based on the deformation model; when the deformation compensation parameter is greater than a set threshold value, an abrasion model representing deformation of the production equipment is generated based on modeling of the production equipment in the work parameters, a minimum value of the abrasion model is solved, and a solution corresponding to the minimum value is determined as an abrasion factor; a control instruction is generated based on the deformation compensation parameter to control the production equipment to work, and the production equipment is controlled to suspend work when the abrasion factor is greater than a preset abrasion threshold value. Comprehensive monitoring and optimal control of the equipment are realized, operation precision and stability are improved, and industrial digital transformation is promoted.

The utility model relates to the technical field of mechanical parts, in particular to a long-service-life, low-abrasion and corrosion-resistant main shaft copper bush which comprises a shaft sleeve, the shaft sleeve is composed of an upper half sleeve and a lower half sleeve, a plurality of receding grooves are formed in the outer wall of the upper half sleeve, through holes are formed in the receding grooves, and connecting bolts are inserted into the through holes. The bottom of the connecting bolt is in threaded connection with a threaded hole formed in the surface of the lower half sleeve; annular grooves are formed in the upper half sleeve and the lower half sleeve, a plurality of oil inlet grooves are formed in the annular grooves, oil inlet holes are formed in the oil inlet grooves, and a plurality of lubricating grooves communicated with the oil inlet holes are formed in the upper half sleeve and the lower half sleeve. The long-service-life, low-abrasion and corrosion-resistant main shaft copper sleeve has the advantages of being easy to replace and convenient to maintain, continuous lubrication can be achieved, stable operation of a main shaft is guaranteed, the main shaft can be lubricated from multiple positions, friction between the main shaft and the copper sleeve can be reduced, and the requirement for long-time high-speed operation can be met.