51results about How to "Reduce excessive wear" patented technology

A portable rebound (or deflecting) sports training device having at least a first rebound panel or surface adapted to rebound a ball away from the device, and a support structure adapted to hold the panel in a first, operational condition in which the panel is held generally upright; the panel and the support structure having a second, transport or storage, configuration relative to each other such that the panel and support structure lie flatter (or generally flat) relative to each other in the direction transverse to the rebound panel such that the device occupies less space.

The invention discloses a frictional wear test method and a frictional wear test device for a sealing ring. The method comprises the following steps of: 1) fixing a lower test piece on a lower clamp; 2) embedding an upper test piece into a cambered accommodating slot, and adjusting an adjustment bolt to control the axial compression rate of the upper test piece; 3) adding a test medium into a medium slot, and setting test temperature, a normal load and a friction frequency; and 4) controlling a bidimensional adjustable mobile table and a horizontal reciprocating motion device, and calculating a friction coefficient between the upper test piece and the lower test piece. The device comprises a machine seat, the medium slot, an upper clamp, a lower clamp, a temperature control console, a horizontal reciprocating motion device, the bidimensional adjustable mobile table and a data acquisition control system, wherein the bidimensional adjustable mobile table, the horizontal reciprocating motion device and the temperature control console are electrically connected with the data acquisition control system. The frictional wear test method and the frictional wear test device have the beneficial effects that a working condition of the sealing ring is really simulated; in a test process, the friction is synchronously and dynamically acquired; and the friction interface damage evolution property and the influence rule of the sealing ring are accurately analyzed.

The invention provides a mold roller gap stepless automatic regulation device of a vertical annular mold straw briquetting machine. The mold roller gap stepless automatic regulation device comprises an upper press plate, a grinding disc, an eccentric shaft A, an eccentric shaft B, a vertical main shaft, a PLC (programmable logic controller), an intermediate relay, an electromagnetic valve, a miniature hydraulic pump, an oil tank, a branch oil pipe A, a branch oil pipe B, a push rod and a tray. Strain force sensors sense strain of the eccentric shaft A and the eccentric shaft B in real time and transmit information to the PLC, the PLC controls the electromagnetic valve and the intermediate relay to work, further, the extension and retraction of the push rod are controlled through oil pressure, a mold roller gap is automatically regulated in a stepless way, the effective regulation on the mold roller gap is realized, the stability of forming extrusion force among grinding rollers is ensured, in addition, the briquette forming quality and the briquette forming uniformity are improved, meanwhile, the excessive abrasion among mold rollers is also reduced, the service life of each mold roller is prolonged, and the energy consumption during the production is also reduced.

The invention discloses a three-filler type reciprocating seal using a pressurizing middle flushing cavity and a reciprocating pump thereof. The three-filler type reciprocating seal is suitable for transportation of high-temperature oil coal slurry pressurized to 7.0-25.0MPa; two-filler seal is arranged at the rear end (far away the pump cylinder end) of a stuffing box; a first filler seal (high pressure filler seal) is arranged in a pressure-bearing sealing cavity formed by a cavity at the front end of the stuffing box and the cavity at the rear end of a plunger sleeve; a flushing cavity system between the first filler seal and a middle filler seal adopts pressurizing flushing; compared with the traditional low-pressure flushing, pressurizing flush enables the probability that the main liquid harmful matters (high temperature liquid, high solid concentration slurry, corrosive or flammable and explosive or toxic or radioactive components with fierce deleterious effect) of the pump cylinder penetrate through the first filler seal to leak into the middle flushing cavity to be nearly reduced to zero, middle flushing fluid is also enabled to enter the gap between the first filler sealand a plunger to lubricate and cool the first filler seal and the plunger, so that consumption of high pressure filling oil is reduced favorably, the operating safety of the plunger end is remarkablyimproved, and the application range of the plunger reciprocating pump is enlarged.

The invention relates to a pneumatic executing mechanism, in particular to a buffer type large-torque spring restoration executing mechanism with a final position pneumatic buffer structure, and belongs to the technical field of pneumatic executing mechanisms. The buffer type large-torque spring restoration executing mechanism comprises a cylinder body. The outer side of a left cylinder cover is connected with a left cylinder cover pressing plate through bolts. A guide sleeve is disposed in the cylinder body. The guide sleeve is tightly pressed on the left cylinder cover through the left cylinder cover pressing plate. The right side of a right cylinder cover is connected with a converting box through bolts. The rear end of the converting box is connected with a buffer air chamber. The rear end of the buffer air chamber is connected with the rear cylinder cover of the buffer air chamber. A buffer seat is connected to the rear cylinder cover of the buffer air chamber. A buffer plunger is slidably mounted in the buffer seat. The buffer type large-torque spring restoration executing mechanism has the advantages that the drive requirements of a valve acting frequently can be satisfied, internal component damage, caused by frequent acting, of the executing mechanism can be avoided effectively, and accordingly maintenance frequency can be lowered, and economical benefits can be increased.

The invention relates to the technical field of pipe processing equipment and discloses anticorrosive paint spraying and grinding equipment for production and processing of a buried pipe. The anticorrosive paint spraying and grinding equipment comprises a machine table; supporting legs are fixedly installed at the bottom end of the machine table; fixing rods are fixedly installed at the top end ofthe machine table; the top ends of the fixing rods are fixedly connected with a horizontal plate; a transmission machine is placed on the horizontal plate; the middle part of the transmission machineis fixedly provided with a fixed point grinder in a sleeving manner; a component positioned at the side surface of the fixed point grinder is fixedly installed inside the transmission machine; movingwheels are arranged at the bottom end of the transmission machine; and the moving wheels are matched with fixing grooves which are formed in the top of the horizontal plate. According to the anticorrosive paint spraying and grinding equipment for production and processing of the buried pipe, a transmission driven plate is moved toward a direction corresponding to a screw handle by twisting the screw handle so that two externally connected rods are used for driving two contact plates to expand; by regulating the radian of the two contact plates, material pipes which are different in diameter can be conveniently supported and positioned; and a bearing frame device is used for auxiliary support for the position, thereby effectively guaranteeing processing of the material pipes which are different in length.

The invention relates to a turning control method, a device, and a mixer truck. The turning control method is used for the mixer truck. The mixer truck comprises a tank body. The turning control method comprises following steps: in turning of the mixer truck, the practical turning direction of the mixer truck is obtained; a target rotating speed of the tank body is determined based on the practical turning direction and the stirring direction of the tank body; the tank body is controlled to rotate at the target rotating speed along the stirring direction, so that in turning of the mixer truck,automatic adjusting of the rotating speed of the tank body is realized based on the relationship of the practical turning direction of the mixer truck and the stirring direction of the tank body, dependent on single speed reduction by drivers is avoided, the stability and driving safety of the mixer truck are improved, driver labor intensity is reduced; and in addition, the mixer truck is more stable, so that excess wearing caused by aggressive vibration is avoided, and the service life of the mixer truck is prolonged.

The invention relates to a composite self-lubricating bearing which comprises a bearing group and a shell, wherein the bearing group is formed by assembling at least one bearing unit, and the bearing unit is provided with an axially-perforative axial hole in which an axial core passes through; the shell is a hollow tube body which is used for sleeving on the outer edge of the bearing group along the axial core direction in a sealing way, and at least one storage tank for storing a lubricating medium is defined by the bearing group and the shell. At least one microgap runner communicated with the axial hole is arranged round the storage tank so as to continuously supply the lubricating medium. The lubricating medium exerts the efficacy of high-quality lubrication between the axial core and the axial hole.

The invention belongs to the technical field of rail transit and specifically relates to a steep slope running assisting system. The invention aims at solving the stability problem of a train in steepslope rail running in the prior art. The steep slope running assisting system comprises two rail lines and a traction device, wherein the two rail lines are arranged on a steep slope; the traction device comprises a traction rope and a traction guiding device; the traction guiding device is arranged at high altitude; the traction rope penetrates through the traction guiding device; the two rail lines are correspondingly used for the train to run up and down; and when two trains correspondingly run along the two rail lines in opposite directions as an up train and a down train, the two ends ofthe traction rope are correspondingly connected with the up train and the down train, provide up tension for the up train and provide down resistance for the down train. According to the steep sloperunning assisting system, the stability of the train in steep slope running can be improved so that the train runs in a safe, reliable, energy-saving and consumption reducing manner.

The invention discloses a disk sweeping automatic position adjusting device of a sweeping machine and an adjusting method of the sweeping machine. The disk sweeping automatic position adjusting devicecomprises a deflecting reduction case, a motor, a winding roll wheel, a steel wire, a sweeping disk adjusting rod, a sweeping disk component, a tension sensor and an automatic control device; the disk sweeping component is hinged on a chassis of the sweeping machine through the sweeping disk adjusting rod, both ends of the steel wire are connected with the sweeping disk adjusting rod and the winding roll wheel; the motor is connected with the winding roll wheel through the deflecting reduction case, and the tension sensor is arranged at one side of the steel wire closing to the tail end; thetension sensor is electrically connected with the automatic control device, and the automatic control device is electrically connected with the motor controller. Through the technical scheme, the disksweeping position is automatically adjusted, the labor work is saved while the excessive wear of a sweeping brush is reduced, the cleaning efficiency and control precision are improved; thus a working vehicle can keep the best working state at any time.

The invention discloses a drill rod for directional branch drilling, and relates to the field of directional drilling, the drill rod comprises a drill rod body, the drill rod body comprises a pipe body and a cable, one end of the pipe body is provided with a male joint, the other end of the pipe body is provided with a female joint, the inner circumferential wall of the female joint is provided with an internal thread, the outer circumferential wall of the male joint is provided with an external thread, and the joint of the external thread of the male joint and the pipe body is provided with a butt joint table; a reinforcing protrusion is arranged on the periphery of the butt joint table, an anti-loosening clamping assembly is arranged between the male connector and the female connector and comprises an embedded groove, a supporting rod and an anti-loosening protrusion are arranged in the embedded groove, and an embedded groove is formed in the female connector. The strength of the butt joint table and the joint of the male joint external thread and the pipe body can be further enhanced by arranging the reinforcing protrusions, the reinforcing protrusions can be abraded firstly, excessive abrasion of the butt joint table is avoided, the male joint and the female joint can be stably fixed by arranging the anti-loose clamping assemblies during drilling vibration and rotation, thread abrasion is reduced, and the service life of the male joint and the female joint is prolonged. The probability of fracture or deformation at the male and female joints is reduced, and the service life of the drill rod is prolonged.

The invention relates to a control method for working roll bouncing between passes of a steckle mill. The control method comprises the steps that working roll experience displacement of the passes corresponding the variety of a current blank is acquired from a preset working roll displacement database; the working roll experience displacement of the current pass is determined according to the working roll experience displacement of the passes; the position of a working roll is adjusted according to the working roll experience displacement of the current pass, wherein before rolling of the current pass is carried out on the blank, the working roll is driven to move in the axis direction of the working roll; and when the moving displacement of the working roll reaches the working roll experience displacement of the current roll, the working roll is controlled to stop moving. According to the control method, control over displacement of each pass of the working roll can be automatically carried out, and therefore the product quality is improved, the surface quality of the product is guaranteed, in addition, the bending effect of the working roll can also be improved, and excessive abrasion to the working roll is reduced.

The invention discloses an integrated engine oil filter. The integrated engine oil filter comprises a casing, an engine oil filtering module, an oil-gas separation module, an oil cooler, a paper filter element, a bypass valve, a service valve and a safety valve; the engine oil filtering module and he oil-gas separation module are arranged at the top of the casing; the oil cooler is mounted on thecasing and located below the engine oil filtering module and he oil-gas separation module; the paper filter element is mounted inside the engine oil filtering module; the bypass valve is arranged on the engine oil filtering module and located at the top of the center of the paper filter element; the service valve is arranged at the bottom of the center of the engine oil filtering module; the safety valve is mounted inside the casing and located below the oil cooler; the back surface of the casing is a flange surface; and a connecting opening is reserved in the flange surface. The integrated engine oil filter has the characteristics that the integrated engine oil filter is convenient to replace, capable of prolonging the life of an engine, highly integrated and high in overall ability.

The invention provides grinding equipment for an aluminum profile fracture. The equipment comprises a storage shell, a main motor is fixedly installed in the storage shell, a fixing plate is fixedly installed at the left end of the storage shell, the upper end and the lower end of the fixing plate are symmetrically provided with rotating shaft holes, a transmission shaft is rotationally installedin the rotating shaft hole in the upper end, a driving belt wheel is spirally installed at the left end of the transmission shaft, a transmission gear is clamped to the right end of the transmission shaft, and a positioning shaft is rotationally installed in the rotating shaft hole in the lower end. Abrasive paper is replaced with an abrasive belt, toughness is improved, the abrasive belt is softer compared with a corner grinding sheet, excessive abrasion to the fracture is reduced, the device has the convenience and fastness of operation of the corner grinding machine and the characteristic of excessive abrasion prevention for the fracture, and by means of a clutch mechanism of the driving gear, the main motor can be in a working state all the time after being started, and the problem that starting current is too large due to repeated starting is avoided.

The invention discloses sole film pasting equipment using a novel material. The equipment comprises a shell, a first transmission space is arranged at the right side of the shell, a main space is arranged at the lower side of the first transmission space, a backrest is fixedly arranged on the upper side surface of the shell, a person can sit on the backrest through the backrest, a seat is fixedlyarranged at the right side of the backrest, and the seat is a position where the person can sit. A first sliding space is formed at the left side of the shell, a winding space is formed at the lower side of the first sliding space, and a working space is formed at the upper side of the winding space. Before mountain climbing, memory metal and a high-friction material can be used for jointly manufacturing a friction film meeting different soles, the film is pasted on a sole, excessive abrasion of a shoe due to terrain and other factors can be greatly reduced during mountain climbing, the shoe can be greatly protected against abrasion during climbing, the friction force between the shoe and the ground can be increased, the climbing process can be safer, and the phenomena of slipping and thelike can be avoided.

The invention discloses a flower and plant seedling cultivating frame convenient for adjusting. The flower and plant seedling cultivating frame comprises a bottom base. The upper surface of the bottombase is fixedly connected with two symmetrical support rods. The upper part of one side face, mutually adjacent to each other, of each of the support rods is provided with a through channel. A seedling cultivating plate matched with the through channels is placed above the bottom base. The left and right ends of the seedling cultivating plate are locked and connected in two through channels. Themiddle of the bottom wall in each of the through channels is provided with a groove. The interior of each of the grooves is locked and connected with a rack matched with the groove. The upper surfacesof two racks pass through two grooves and are extended to the interior of the through channels, and the upper surfaces of the two racks are fixedly connected with the bottom face of the seedling cultivating plate. The flower and plant seedling cultivating frame convenient for adjusting is capable of, through installing the racks, and under the combined action of a gear, a transmission shaft, a first driving wheel, a conveying belt, a second driving wheel and a speed reducing motor, enabling the seedling cultivating plate to be upwards and downwards moved, and solving a problem that an interlayer height can be adjusted only if the traditional seedling cultivating plate is detached and assembled.

The invention relates to a brushless magnetic drive submersible pump with a built-in water cooling system. The brushless magnetic drive submersible pump comprises a pump body, a pump cover, a water inlet housing, an upper end cover, a lower end cover, a motor shaft, a rotor, a stator, an impeller and a water outlet pipe, and a rotor cavity, a stator cavity, a pump pressure cavity, a pump water inlet and a water outlet pipeline are arranged on the pump body; the shell further comprises two longitudinal water channels arranged in the stator cavity and a mounting hole in the upper end cover of the bottom plate, the upper parts of the longitudinal water channels are in communication with the upper part of the rotor cavity, and a water inlet hole is formed in the upper end cover; the lower endcover is buckled with the rotor cavity and the upper ends of the longitudinal water channels and is in liquid sealing with the rotor cavity and the upper ends of the longitudinal water channels, and awater flow heat exchange gap is formed between the rotor and the rotor cavity; and water enters from the bottom ends of the longitudinal water channels, flows through the longitudinal water channels,the water inlet holes in the upper end cover and the rotor cavity, and then is discharged from the bottom end of the rotor cavity to flow into the pump pressure cavity to form a water cooling system.Flowing water absorbs heat on a coil and the rotor, so that the temperature rise of rotating shafts of the coil and the rotor is effectively reduced, and the service life of the submersible pump is prolonged.