14results about How to "Short maintenance time" patented technology

The utility model relates to a wheel technology field, concretely relates to a detachable wheel, including tyre, the inner ring of tyre is equipped with wheel cover, and tyre and wheel cover outer circle seal setting form a plenum, and the inner ring of wheel cover is evenly arranged with countersunk mounting hole along the circumference, and wheel cover is equipped with detachable wheel hub, and detachable wheel hub includes wheel hub outer circle cooperation installation with the inner ring of wheel cover, and wheel hub outer circle is equipped with wheel hub hub core, and the between wheel hub outer circle and wheel hub hub core along the circular center radiation spreads apart a plurality of spoke, and the between two adjacent spokes is equipped with detachable assembly cooperation with countersunk mounting hole. Independent plenum, will not leak in the wheel cover and wheel hub dismounting process. Wheel hub is through detachable assembly and realizes detachable, when wheel hub outer circle, wheel hub hub core or spoke etc. component appears damage, need not to replace whole wheel, only need to dismount and replace damaged wheel hub part, dismount convenient, greatly shorten the maintenance cost and maintenance time short.

The utility model belongs to the field of ore dressing relates to a kind of flotation machine ore separation box, including T-shaped partition, the T-shaped partition is installed in the ore separation box, and the ore separation box is divided into two parts of feed tank and distribution tank;The T-shaped partition includes vertical plate perpendicular to the bottom surface of the ore separation box and horizontal plate parallel to the bottom surface of the ore separation box and fixed on the top of the vertical plate;The length of the vertical plate is equivalent to the length of the ore separation box, the height of the vertical plate is not more than 1 / 2 of the height of the ore separation box;The length of the horizontal plate is equivalent to the length of the ore separation box.The technical scheme of the application can delay the flow rate of ore pulp, which is beneficial to uniform ore separation and improves the flotation effect;At the same time, the ore can be ground, and the bottom plate after modification will not be impacted by the ore pulp.

This invention relates to the field of resource utilization technology for waste soil and discloses a method for combined lithium slag and carbide slag electroosmosis reinforcement of waste soil. The method involves mixing lithium slag and carbide slag in a specific ratio with waste soil to form modified soil with low moisture content, which is then cured using an electroosmosis device to achieve rapid reinforcement and resource utilization of the waste soil.

This invention discloses a method for repairing asphalt pavement through pipeline excavation, comprising the following steps: S1: Milling and crushing the original road structure in layers to produce old asphalt pavement waste and old base course waste; S2: Excavating a trench downwards from the top surface of the original roadbed, laying a pipeline, and filling the trench to the top surface of the original roadbed; S3: Processing the old base course waste to form recycled aggregate, and then mixing it to form self-compacting concrete; S4: Forming a self-compacting recycled concrete base course above the backfill material; S5: Crushing and screening the old asphalt pavement waste into a first waste with a small particle size and a second waste with a large particle size; S6: Heating the first waste, adding the first aggregate, adding asphalt and a recycling agent, and mixing to form a medium-grained recycled asphalt mixture, forming a recycled medium-grained asphalt concrete surface layer; S7: Heating the second waste, adding the second aggregate, adding asphalt and a recycling agent, and mixing to form a fine-grained recycled asphalt mixture, forming a recycled fine-grained asphalt concrete surface layer, thus completing the pavement repair.

The application relates to the technical field of bridge expansion joints and discloses a super-high-strength resin elastic concrete for bridge expansion joints, which comprises three components A, B and C, the component A is a main agent, the component B is a curing agent, and the component C is an aggregate; the main agent is a graphene modified epoxy resin; the weight ratio of the component A to the component B is 60-100:30-60; and the total weight of the component A and the component B accounts for 10-15% of the weight of the component C. The super-high-strength resin elastic concrete has high mechanical strength, rut dynamic stability and shear strength with interface concrete, is more durable in use, can absorb impact stress, can be exempted from a steel structure, greatly shortens construction time, has short maintenance time, has no obvious car jumping when a vehicle drives through the expansion joint, has lower noise and is easy to maintain.

This utility model provides a high-precision electrostatic adsorption type Mylar film bonding device, belonging to the technical field of Mylar film bonding equipment. It includes a Mylar film conveyor frame, a lower component conveyor frame, and a roller. The lower component conveyor frame is located below the Mylar film conveyor frame, and a roller is located above the tail of the lower component conveyor frame. A rotating central drive shaft is arranged in a spaced array on the Mylar film conveyor frame. Side conveyor belts are rotatably connected to both ends of the central drive shaft with tension. A central conveyor roller is fixedly connected to the middle of the central drive shaft. An upper guide plate is fixedly connected to the upper side of the tail of the Mylar film conveyor frame. By decomposing the conveying function into a combination of narrow conveyor belts (width ≤ 300mm) on both sides and a central support roller, the non-linear cost increase problem of wide conveyor belts (≥ 1m) is avoided. This solves the problem of high equipment investment where, with the increase in Mylar film size, the unit length cost increases by 1.5-2 times for every 1m increase in conveyor belt width.

This utility model relates to the field of air conditioning, providing a housing assembly and an air conditioner. The housing assembly includes a panel and a maintenance plate disposed on the panel. The panel has a maintenance opening, and the maintenance plate is movably disposed within the maintenance opening. The maintenance plate rotates relative to the panel to open or close the maintenance opening. The panel has a first mounting hole and a mounting groove communicating with the first mounting hole. The maintenance plate has a first connecting portion, which has a first end and a second end. The first end passes through the first mounting hole, extends into the mounting groove, and can rotate within the mounting groove. The second end is connected to the maintenance plate and is disposed outside the first mounting hole. This utility model solves the defects of existing technologies where the maintenance plate needs to be completely removed from the panel, resulting in a cumbersome process, low work efficiency, and inconvenient operation. It optimizes the installation method of the maintenance plate. Based on the rotatable connection between the maintenance plate and the panel, only the maintenance plate needs to be rotated for operation, eliminating the need to completely remove the maintenance plate, thus simplifying the operation process and improving efficiency.

The utility model relates to a kind of broken machine rotor body with variable rotary diameter, it is related to broken machine technical field, including rotating shaft and hammer head assembly being set in the rotating shaft around, and the hammer head assembly is connected between the rotating shaft by telescopic structure.This utility model can make broken machine according to the gap of the clearance of rotor body and broken machine crushing cavity to adjust broken material granularity, reach the substantial increase of broken machine production quantity.Meanwhile, due to the wear of hammer head, hammer head seat can be extended by oil cylinder at any time, the clearance of rotor body and broken machine crushing cavity can be automatically guaranteed, ensure that broken machine production quantity will not be reduced.Meanwhile, hammer head is replaced conveniently, maintenance time is short, and use and maintenance cost are low.

This utility model relates to an intrinsically safe dust removal dome camera for mining, including a camera body, a wiper, and a drive mechanism. The camera body is equipped with a dome cover. The drive mechanism includes a motor, a mounting base, a rotating block, and a connecting frame. The mounting base is fixedly mounted on the camera body. The rotating block is rotatably mounted inside the mounting base. The connecting frame is sleeved on the outside of the dome cover and is movably mounted on the rotating block via a slider assembly. It moves radially towards or away from the dome cover. The connecting frame is relatively fixed to the rotating block via a positioning pin. The motor is fixedly mounted on the camera body, and the motor's rotating shaft is fixedly connected to the rotating block. The rotating block drives the connecting frame to rotate around the dome cover. The wiper is detachably mounted on the side of the connecting frame closest to the dome cover. This intrinsically safe dust removal dome camera for mining facilitates wiper maintenance and replacement, is simple to operate, and has a short maintenance time.

This invention relates to a high-performance polymer-cement-based composite repair material and its preparation method. The high-performance polymer-cement-based composite repair material, by mass fraction, comprises the following components: 690-710 parts cement; 130-150 parts fly ash; 45-55 parts silica fume; 200-210 parts mixing water; 950-1050 parts fine aggregate; 21-23 parts modified polymer; 9-10 parts expansion agent; 4-5 parts water-reducing agent; 5-6 parts modified fiber; and 0.16-0.18 parts defoamer. This invention utilizes nano-toughened modified polymer and modified fiber. The nano-modified polymer improves the microstructure of the repair material, while the modified fiber limits shrinkage and enhances the crack resistance of the matrix. The synergistic effect of both effectively improves the toughness and mechanical properties of the repair material, ensuring that early cracking does not occur.

The utility model discloses a railway asphalt crossing, and relates to the technical field of railway crossings. The structure comprises a foundation pit with an upward opening, a concrete cushion layer is laid at the bottom of the foundation pit, a reinforcing mesh is laid on the concrete cushion layer, sleepers are laid on the reinforcing mesh, and steel rails are connected to the sleepers; concrete fillers are poured below the bottoms of the steel rails and in the foundation pit and in gaps between the concrete cushion layer and the reinforcing mesh and between the concrete cushion layer and the sleepers; asphalt filler is laid above the top of the sleeper, in the foundation pit and on the periphery of the steel rail. The railway crossing has the advantages of being good in stability and high in bearing capacity, and the problems that an existing railway crossing is poor in stability, insufficient in bearing capacity and the like are effectively solved.

This invention discloses a device for continuously extruding gypsum-based materials and a method for preparing gypsum-based materials using the same, belonging to the field of building material preparation technology. The device includes a dry material storage tank, a ring conveyor belt, a water-adding device, a wet material storage tank, and an extruder. The outlet of the dry material storage tank is connected to one end of the ring conveyor belt; the inlet of the wet material storage tank is connected to the other end of the ring conveyor belt; the extruder is connected to the outlet of the wet material storage tank; the water-adding device is located above the top surface of the ring conveyor belt and on the side of the dry material storage tank closer to the wet material storage tank; and a flow limiting device is provided on the outlet of the dry material storage tank. This invention changes the traditional method of mixing gypsum-based materials, allowing the water-added gypsum-based material to enter the extruder within 15 seconds. This solves the problems of existing technologies, such as the difficulty in uniformly mixing gypsum-based materials due to rapid solidification, uneven water content distribution leading to low mechanical parameters of the finished product, and difficulty in cleaning after mixing.

This invention discloses an electric adaptive stone gripper drive mechanism for a stone processing robotic arm, relating to the field of robotic arm technology. The invention includes a left gripper and a right gripper mounted on the robotic arm. A follower inner liner is fitted at the hinge of the left and right grippers, and a protective cover is installed on the outside of the follower inner liner. The protective cover is composed of several modular protective covers. This invention features a fully modular design, with both the follower inner liner and the modular protective cover being independent, replaceable units. After a period of use, only the connecting bolts of the modular protective cover need to be removed to remove the old follower inner liner and modular protective cover as a whole, without disassembling the left and right grippers or requiring specialized tools and skills. Compared to traditional maintenance methods that require disassembling the entire gripper, this significantly reduces downtime losses and maintenance costs. Through follower volume compensation, the volume of the sealed cavity remains constant, completely eliminating the breathing effect generated when the grippers open and close.

The utility model discloses a large precast concrete member curing system which comprises a curing room, a flow guide groove, a heat distribution pipeline, a heat exchanger, a spray humidifier, a ceiling and a master control system, and a condensate water flow guide groove, the heat distribution pipeline, the heat exchanger, the spray humidifier, the ceiling and the master control system are all installed on the curing room. The diversion trench is installed on the inner ground of the maintenance room, and the heat exchanger is installed above the diversion trench. A heat distribution pipeline is installed above the heat exchanger, the spray humidifier is installed at the head of the maintenance room, a ceiling is installed at the top of the maintenance room, and a master control system is further installed on the maintenance room and used for achieving control related to air supply / air stopping, door opening / closing, ceiling opening / closing and temperature and humidity adjustment of the maintenance room. Automatic maintenance of the large prefabricated concrete member is achieved, maintenance time is shortened, labor is reduced, cost is reduced, and production efficiency is improved.