8results 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.

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 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.

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.

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.