38results about How to "Easy on-site maintenance" patented technology

The invention relates to a tool for manually dismounting and mounting a tire in vehicle maintenance detection equipment, and particularly relates to a quick device for manually dismounting and mounting a tire and a use method of the quick device. The device mainly comprises an upright column, a supporting shaft and a three-jaw chuck; a tire pressing bar is arranged on the upright column, a tire pressing spade is arranged on the tire pressing bar, a cam is arranged on the upright column, and an extension spring is arranged between the upright column and one end of the cam; a clamping block is arranged on the upright column, one end of the clamping block is positioned on the protruded face of the cam, and the clamping head end of the clamping block is positioned at the inner side of the upright column on which a platform is arranged; and a cone pulley is arranged on the supporting shaft; a pedal is arranged on the upright column, and a rope is connected between the pedal and one end of the cam; and the connection between the upright column and the tire pressing bar, between the tire pressing bar and the tire pressing spade, between the upright column and the cam and between the upright column and the clamping block is achieved by movable shafts. The device can meet the requirements of tire dismounting, mounting and maintenance of various vehicles such as motorcycles, cars and electric vehicles, and the problems that the existing manual tire changers are troublesome in mounting and dismounting and time-wasting, the power source tire changers can not work without a power source, and the like are solved.

A quick-detachable structure 100 is used for detachably connected to a rotor assembly 20 to a fuselage 10 and is characterized in that, when the quick-detachable structure 100 connects the rotor assembly 20 to hte fuselage 10, the rotor assembly 20 is electrically connected to the fuselage 10 through the quick-detachable structure 100. A pluraltiy of rotor assemblies 20 which are correspondingly connected to the quick-detachable structures 100 can be switched mutually. The invention also relates to an multi-rotor unmanned aerial vehicle 100 and 300, and an assemlby, and the rotor assembly.

The invention discloses a locking self-sealing dry quick joint. The locking self-sealing dry quick joint comprises a dry quick male joint and a dry quick female joint; the dry quick male joint comprises a male joint shell, a male joint valve base, a guide spring bushing, a spring, a slide valve element and a spiral guide groove; and the dry quick female joint comprises a female joint shell, a valve element support base, a fixed valve element, a slide valve base, a guide bushing, a spring bushing, a spring, a front end cover, a cam and an operation hand wheel. The locking self-sealing dry quickjoint realizes connection and disconnection through the female joint axially rotated in and out of the male joint, so that the medium leakage quantity in the connection and disconnection process during fluid conveying is reduced, and the purposes of environmental protection and conservation are achieved; and the locking self-sealing dry quick joint reduces internal friction of a mechanical structure through the cam and the spiral guide groove structure, is lower in operation driving force, saves both time and cost, optimally designs the flowing speed, and guarantees lower flow and pressure loss.

The invention discloses a 60 mm straight stroke power-off reset intelligent frequency conversion hydraulic electric actuator. The valve actuator includes an outer cylinder, a bracket and a controller. Cylinder, electromagnetic pump and solenoid valve are installed in the inner cylinder, there is an adjustment cavity between the outer cylinder and the inner cylinder, and a pre-compression elastic device is arranged around the inner cylinder in the adjustment cavity, and the bottom of the inner cylinder is connected The nut is connected with a universal joint for opening and closing the hydraulic valve, and the pre-compression elastic device moves up and down synchronously with the inner cylinder, and the closing and opening operation of the hydraulic valve is controlled through the up-and-down movement of the inner cylinder; the actuator adopts a pre-compression elastic device To prevent the occurrence of safety hazards in the existing maintenance process, the output stroke of the actuator is extended, and the multi-pump supply pressure ensures the requirements of the stroke. It is safe and reliable to use. The inner cylinder is gradually reset and the valve is closed.

The invention discloses a station track double-sleeper tamping device, which comprises a box body, a vibration shaft, an inner clamping oil cylinder, an outer clamping oil cylinder, an inner pickaxe arm, an outer pickaxe arm, an inner tamping pickaxe, an outer tamping pickaxe, an air cylinder, stop blocks, a guide post, an outer support arm, an oil tank assembly and an inner support arm, wherein the box body is at least formed by a middle body, a cross beam, an end plate, an inner support lug boss, an outer support lug boss and a stop baffle plate through welding, the distance from the center of a pin hole of the outer pickaxe arm arranged on the cross beam of the box body to the center line of the box body equals 600mm+/-20mm, the outer support arm and the oil tank assembly comprise an outer support arm, two oil tanks and a flywheel cover, the inner support arm comprises an inner support arm body and a flywheel cover, the stop blocks are arranged between the front end of a piston rod of the outer clamping oil cylinder and the cylinder cover of the oil cylinder, the stop blocks comprise a fixed stop block and a turnable stop block, through using different numbers of stop blocks, the downward inserting positions and clamping strokes of the outer side stamping pickaxe are regulated, and the operation requirements of different sleeper spaces are met. The station track double-sleeper tamping device has the advantages that the structure is reasonable, the station track operation is met, and the main track operation is also met.

The invention relates to a CAN bus-based medical X-ray high voltage generator control system, which comprises a console MCU module, a high voltage generator and a bulb tube connected in sequence, wherein the high voltage generator comprises a power interface module, a rotary anode driving module, a high voltage loop control module, a large-small focal filament power module, an AEC shooting control module, an IBS perspective control module, a high voltage inverter and a transformer; the console MCU module, the power interface module, the rotary anode driving module, the high voltage loop control module, the large-small focal filament power module, the AEC shooting control module and the IBS perspective control module are mutually connected via the CAN bus; and the high voltage inverter and the transformer are respectively connected with the high voltage loop control module and the bulb tube. Compared with the prior art, the system has the advantages of flexibility, reliability, low cost, good system performance and the like.

The invention discloses a high temperature and high pressure special regulating valve, which comprises a valve body, a valve cover, a valve seat, a valve cage, a valve plug and a valve stem. A built-in space, a valve seat is provided at the lower part of the built-in space; a valve cage is provided between the valve seat and the bonnet, and the valve cage includes an upper valve cage and a lower valve cage arranged from top to bottom, the upper valve cage and the lower valve cage There is an upper seal between them; there is a valve plug inside the cage, the valve plug is set above the valve seat, and a lower seal is provided between the valve plug and the valve seat; there is a valve stem inside the valve plug, the valve plug and The valve stems are connected by pre-positioning and anti-loosening threads. The upper part of the valve stem is installed in the center of the bonnet. There is a graphite packing between the valve stem and the bonnet. The high-temperature and high-pressure special regulating valve of the present invention can effectively improve the sealing performance of the valve at high temperature, withstand high pressure, reliability and versatility; it can be widely used in various automatic high-temperature and high-pressure regulating occasions.

The invention discloses a water-cooled cable convenient in maintenance, comprising a conductive inner cable, a cable sleeve, a cable end socket, a cable core rod, a cable water nozzle, a cable patch panel, a fixing nut and a gasket component; the conductive cable is arranged in the cable sleeve, the length of the conductive cable is smaller than the length of the cable sleeve, the two ends of the conductive cable retracts into the cable sleeve and are connected with an interior end of the cable core rod, the cable end socket is in a sleeve structure, a via hole which the cable core rod is inserted into and extends out of is formed in the center of the cable end socket, and the exterior section of the cable core rod penetrates through the via hole to be locked on the exterior end of the cable end socket by the fixing nut and the gasket component; part of the cable end socket, extending out of the cable sleeve, is provided with a water injection hole communicated with the via hole, and the cable water nozzle is arranged at the position of the water injection hole; the cable end socket is fixedly connected with the cable patch panel; and the gasket component is arranged between the fixing nut and the cable end socket. The water-cooled cable convenient in maintenance enables the maintenance personnel to replace specific parts of the water-cooled cable conveniently, so that a steelworker can maintain equipment on site conveniently, and time and labor are saved.

The invention relates to a novel tool for reducing a gas residual rate of an SF6 steel cylinder. The novel tool comprises a vertical type gas cylinder heating small handcart, an electric control cabinet arranged on the heating small handcart, and upper, middle and lower sets of heaters, wherein each heater is composed of opening and closing type heating sheets; a heat insulation layer is arranged on the outer surface of each heating sheet and a temperature control probe is mounted in the upper heating sheet; a digital readout temperature controller is arranged in the electric control cabinet and is used for controlling a temperature setting range to 10-35 DEG C; a protection switch with a safety protection effect is arranged on the right side face of the upper heating sheet. The novel tool for reducing the gas residual rate of the SF6 steel cylinder is small in fund investment, simple in structure and convenient to use, and can be applied to gas filling and gas supplementation work of sulfur hexafluoride equipment of a transformer substation of a power supply company in cold weather. Therefore, a heating device of a sulfur hexafluoride gas cylinder has the advantages of being economic, practical, stable, reliable, and the like and has very strong actual application values and popularization values. The novel tool for reducing the gas residual rate of the SF6 steel cylinder is mobile and is low in cost, convenient to use and convenient to carry; the novel tool is easy to fill rapidly and convenient for field overhauling and maintenance.

The invention discloses an energy saving blast furnace billet steel shearing machine, and relates to the field of iron and steel smelting. The shearing machine comprises a hoisting beam and a shearing machine principal part arranged on the hoisting beam, the shearing machine principal part comprises a machine frame, a shearing mechanism, a travelling mechanism and a controller; wherein the machine frame comprises a suspension part and a shearing part, the suspension part is fixedly connected with the shearing part; the travelling mechanism is arranged on the suspension part, the suspension part is arranged on the hoisting beam though the travelling mechanism. The technical scheme because of adopting the suspension type structural design for the hoisting beam does not require making cement foundation below the billet steel track, the mounting time of a whole mechanism is shortened, the cost is saved, meanwhile on-site maintenance of the equipment production is facilitated, online replacements are achieved, and the time and the cost are saved.

The invention discloses a movable maintenance vehicle for a fuel injection pump. The movable maintenance vehicle comprises the maintenance vehicle body, a pair of armrests, a plurality of travelling wheels, and a plurality of illuminating lamps, wherein the maintenance vehicle body comprises four vertical columns and three partition plates; the partition plates are respectively connected with four vertical columns from the upper part to the lower part, so that the maintenance vehicle body is divided into top layer storage space, middle layer storage space and bottom layer storage space; the pair of armrests is respectively and fixedly arranged on two sides of the maintenance vehicle body; the travelling wheels are respectively arranged at bottoms of the vertical columns; the illuminating lamps are respectively arranged at tops of the four vertical columns; at least one maintenance tool kit is arranged in the top layer storage space of the maintenance vehicle body; at least one tool slot rack is arranged in the middle layer storage space of the maintenance vehicle body; a plurality of tool slots are formed in the tool slot rack; an instrument fixing box is arranged in the middle layer storage space of the maintenance vehicle body; a plurality of instrument embedding space is arranged in the instrument fixing box. The movable maintenance vehicle can be used for placing the fuel injection pump maintenance tool kit and detecting instruments, and can also be used for placing the dismounted fuel injection pump, so as to further check and maintain the fuel injection pump.

The invention relates to a pump unit. The pump unit comprises a pump body, a stator shield sleeve, a motor shell and a junction box shell. The stator shield sleeve is arranged above the pump body, theupper portion of the stator shield sleeve is a cylindrical part with an opening in the lower end, and the bottom of the cylindrical part is outwards provided with a flanging part placed on the spigotface of the pump body in the radial direction. The motor shell is in a cylindrical shape with an opening in the lower end, the stator shield sleeve is covered with the motor shell, and the stator shield sleeve is arranged on the upper end face of the pump body through a boss on the outer side of the side wall of the stator shield sleeve. The junction box shell is in a cylindrical shape with an opening in the lower end, the junction box shell covers the motor shell, and the function box shell is connected with the motor shell through bolts. The pump unit is simple and compact in structure, high in space utilization rate, reliable in connection between components and convenient to assemble. The junction box shell wraps the motor shell, so that the motor shell does not need paint spraying, the surface does not need to be subjected to shot blasting treatment, production procedures are reduced, the raw material cost is saved, and the production efficiency is improved.

The invention relates to the field of rubber, and specifically relates to technology for processing a pre-sulphurized butyl rubber plate. The technology comprises the following steps: a first step, plastication: a butyl rubber raw material 1675N and a butyl rubber raw material 268 are placed in an open mill for plastication; a second step, the butyl rubber raw material which is plasticated in thefirst step, active magnesium oxide, stearic acid, chlorinated paraffin, polyethylene wax, an anti-aging agent RD, an anti-aging agent WB-16, carbon black 770, carbon black 660, talcum powder, barium sulfate, aromatic hydrocarbon oil, paraffin oil 300#, transformer oil, benzofuran, and zinc oxide are placed together for kneading; a step 3, the raw materials in the step 2, sulphur, a promoter DM, apromoter ZDC, and a promoter NA-22 are placed in an open mill together for open mill; a step 4, a rubber sheet after open mill is placed in a calendar, and is compacted into the butyl rubber plate bya belt conveyer; a step 5, the butyl rubber plate after moulding by the calender and the belt conveyer is placed in a steam vulcanizer for vulcanization. Finally, the pre-sulphurized butyl rubber plate has the advantages of high wear resistance, high corrosion prevention, and long usage life.

The invention relates to the technical field of solution humidifying, and particularly discloses a solution humidifying fresh air handling unit based on a water loop heat pump heat source. The solution humidifying fresh air handling unit comprises a first air duct cavity, a second air duct cavity and a water loop heat pump, a first heat exchange coil, a first heat and humidity exchange unit and a first fan are arranged in the first air duct cavity; a second heat exchange coil, a second heat and humidity exchange unit and a second fan are arranged in the second air duct cavity; the first heat exchange coil and the second heat exchange coil respectively form a closed loop with the water loop heat pump; the first heat and humidity exchange unit is connected with a first liquid storage unit and a first plate heat exchanger, and the three form a closed loop; the second heat and humidity exchange unit is connected with a second liquid storage unit and a second plate heat exchanger, and the three form a closed loop; and the first plate heat exchanger and the second plate heat exchanger respectively form a closed loop with the water loop heat pump. Energy consumption of the unit can be reduced, heat exchange efficiency of the unit is improved, and installation and maintenance are facilitated.

The invention relates to a device and a method for connecting brake pipe systems of railway freight cars. The device is characterized by comprising two flanges, a sealing ring, a plurality of bolts, a plurality of nuts and a plurality of washers; the flanges are symmetrically arranged and are fixedly connected with each other by the bolts, the nuts and the washers, and a cylindrical cavity for accommodating the sealing ring is formed between the two flanges. The method includes sleeving the sealing ring at the ends of two brake pipes pressed by limiting check rings; adjusting the distance between the two limiting check rings to reserve a gap between the two brake pipes; respectively fastening the sealing ring and the limiting check rings into a sealing groove in one certain flange and limiting grooves; pressing axial width adjusting tables to axially and finely adjust the certain flange, enabling the distances from the ends of the two brake pipes to the longitudinal center line of the certain flange to be equal and fastening the other flange on the certain flange; inserting the bolts into bolt holes in the two fastened flanges, sleeving the washers at threaded rod ends of the bolts and fixing the nuts at the threaded rod ends of the bolts. The device and the method can be widely applied to brake pipe systems of railway freight cars.

The invention relates to the field of medical appliances, and provides a chip removal device of a medical crane tower and the medical crane tower. The medical crane tower comprises a lifting post and a supply post slidingly sheathed on the lifting post. The chip removal device comprises a sliding component fixedly mounted on the supply post and is in sliding fit to the lifting post, wherein a chip removal chute is formed on the contact surface of the sliding component and the lifting post. The chip removal device provided by the invention automatically removes the chips generated due to friction force during the lifting process of the crane tower, so as to prevent the surface of the lifting device from being scratched by the chips, prolong the service life of the crane tower, and keep theappearance of the crane tower clean and tidy.

The invention discloses polymer-modified repair mortar which is prepared from the following raw materials in parts by weight: 70-80 parts of sand, 12-18 parts of cement, 4-8 parts of coal ash, 5-8 parts of mineral powder, 1-5 parts of emulsion powder and 0.1-1 part of cellulose ether. By integrating the characteristics of flexibility of the cellulose ether and rigidity of cement and strength complementarity between the emulsion powder and the cellulose ether, adding coal ash and defining the particle sizes, adding the mineral powder and defining the specific surface area of the mineral powder and 28-day activity index and adding a raw material sand and defining the grain composition structure of the sand, the polymer-modified repair mortar disclosed by the invention has excellent performances of water-retaining rate, shrinking percentage, binding strength, compressive strength and the like, so that phenomena such as cracks and empty drums at the repair part are effectively avoided when the polymer-modified repair mortar is used for engineering repair.

The invention relates to aluminum oxide roasting cooling equipment and a modular aluminum oxide roasting cooling device. The modular aluminum oxide roasting cooling device comprises a connection pipeused for being connected with an aluminum oxide outlet of a cyclone cooling system, the connection pipe comprises a main pipeline and branch pipelines communicate with the main pipeline, the number ofthe branch pipelines is arranged two or above, the end, away from the main pipeline, of each branch pipeline is connected with one vertical cooler used for cooling aluminum oxide powder, and materialinlets of the coolers are provided with material inlet valves used for controlling opening and closing of the material inlets of the corresponding coolers. By means of the modular aluminum oxide roasting cooling device, an originally-used horizontal vulcanizing bed is replaced into the multiple identical coolers of smaller sizes, the problem of inconvenient of large equipment installation and replacement is solved, the size of spare equipment is also reduced, the spare cost is lowered, meanwhile, the maintenance space is increased, and convenience is provided for on-spot maintenance and inspection.