34results about How to "Reduce downtime costs" patented technology

The invention relates to a forced seal valve capable of conducting eccentric double-spherical-angle stroke operation. The forced seal valve mainly comprises a valve body, an opening and closing piece, a valve deck, a valve rod, valve bases, a valve base supporting plate, an operation mechanism, a blowdown valve and the like. The opening and closing piece comprises two eccentric spherical structures. By means of the eccentric structures, when the valve rod drives the opening and closing piece to rotate, two eccentric spherical faces can both move in the axis directions of the downstream valve base and the upstream valve base, and therefore the effect of pressing or releasing the valve bases is achieved, and forced sealing of the opening and closing piece, the downstream valve base and the upstream valve base under the specific valve position is achieved. In addition, a module can be formed by the opening and closing piece, the valve rod, the valve bases, the valve base supporting plate and the valve deck, the whole module can be pulled out of the valve as a whole after fastening pieces through which the valve deck and the valve body are connected are detached, and therefore easily-damaged parts of the valve can be replaced in a modularized manner.

The invention relates to a forced seal valve with a modular design and angular travel operation; and the main parts of the forced seal valve comprise a valve body, an opening / closing piece, a valve cover, a valve rod, a valve base, a guide cylinder, a valve base support plate, a guide cylinder support plate, an operation mechanism and a blow-down valve. The opening / closing piece is arranged between the valve base and the guide cylinder, and the convex surface and concave surface thereof are mutually eccentric spherical surface structures; and the thickness of each place of the opening / closing piece can be adjusted through adjusting the opposite positions of the spherical centers of the convex spherical surface and the concave spherical surface, so that the seal specific pressure between the opening / closing piece and the valve base can be adjusted when the valve is positioned in different valve positions, and the valve can be forcedly sealed in several valve positions. In addition, the opening / closing piece, the valve rod, the valve base, the guide cylinder, the valve base support plate, the guide cylinder support plate and the valve cover can be produced to one module; and after a fastening piece for connecting the valve cover with the valve body is dismantled, the whole module can be pulled out from the valve, so that the wearing parts of the valve are modularly replaced.

The invention relates to an earth working machine and to a method for wear-optimized operation of such an earth working machine. Provision is made in this context that machine parameters with which the earth working machine is operated are adapted, in consideration of material properties of the substrate to be worked, in such a way that favorable wear behavior exists for the earth working tools being used.

The invention belongs to the technical field of wind turbine inspection and relates to an inspection method and system for a wind turbine. The inspection method of the wind turbine comprises the following steps that: the first point cloud set of the surface of the wind impeller of the wind turbine is collected; the space position model of the blades of the impeller is calculated according to the first point cloud set; the first boundary lines of an unmanned aerial vehicle pre-flight area path are calculated according to the space position model of the blades of the impeller, wherein the boundary lines comprise an inner boundary line and an outer boundary line; the unmanned aerial vehicle pre-flight area path is determined according to the inner boundary line and the outer boundary line; and an unmanned aerial vehicle performs inspection according to the unmanned aerial vehicle pre-flight area path. The inspection system of the wind turbine comprises a visual range finder, a monitoringunit, a data processing unit and an unmanned aerial vehicle control unit. With the inspection method and system for the wind turbine of the invention adopted, the crack and expansion conditions of theblades can be accurately judged, and accidents are avoided.

The invention relates to an earth working machine and to a method for wear-optimized operation of such an earth working machine. Provision is made in this context that machine parameters with which the earth working machine is operated are adapted, in consideration of material properties of the substrate to be worked, in such a way that favorable wear behavior exists for the earth working tools being used.

A component of a gas injection system (tuyere / tymp) removal apparatus comprising a pneumatic or hydraulic hammer reverse mounted into a hammer frame, the working end of the hammer fixedly attached a first end of a slidable frame. The slidable frame having a second end fixedly attached to an elongated lifting arm means with a component handling means, and two sides slidably attached to the hammer frame. The component handling means may be inserted into the rear of a component of a gas injection system. When activated, the hammer generates a pulling motion on the component handling means engaged with the component of a gas injection system, releasing the component of a gas injection system from the wall of the blast furnace.

The invention provides a pressure relief device. The pressure relief device comprises a sealing valve, a blasting needle, a valve rod mechanism, a power mechanism and a compression bar mechanism; thevalve rod mechanism bears the pressure of the inlet end of the sealing valve and axially extrudes the blasting needle; the power mechanism is connected to the sealing valve and has a tendency to openthe sealing valve; when the blasting needle is stable, the valve rod mechanism is not triggered, levers of the compression bar mechanism are limited, the levers limit baffles so as to lock the power mechanism in a state that the sealing valve is closed; when the pressure exceeds a set pressure value, the blasting needle is unstable, when the valve rod mechanism is triggered, the levers do not limit the baffles, so that the levers lose the limiting effect on the power mechanism, and the power mechanism drives the sealing valve to be opened for pressure relief. According to the pressure relief device, the pressure relief precision is high, debris is not generated in the pressure relief process, the maintenance cost is avoided, reset is simple, and the shutdown cost is low; and in addition, the levers and the baffles are coordinated with the action of a control lever, so that the influence of the friction force can be reduced, and therefore the pressure relief device can be more sensitivein response.

A component of a gas injection system (tuyere / tymp) removal apparatus comprising a pneumatic or hydraulic hammer reverse mounted into a hammer frame, the working end of the hammer fixedly attached a first end of a slidable frame. The slidable frame having a second end fixedly attached to an elongated lifting arm means with a component handling means, and two sides slidably attached to the hammer frame. The component handling means may be inserted into the rear of a component of a gas injection system. When activated, the hammer generates a pulling motion on the component handling means engaged with the component of a gas injection system, releasing the component of a gas injection system from the wall of the blast furnace.

The invention provides a pressure relief device. The pressure relief device comprises a sealing valve, a blasting needle, a valve rod mechanism, a power mechanism and a compression bar mechanism; thevalve rod mechanism bears the pressure of the inlet end of the sealing valve and axially extrudes the blasting needle; the power mechanism is connected to the sealing valve and has a tendency to openthe sealing valve; when the blasting needle is stable, the valve rod mechanism is not triggered, levers of the compression bar mechanism are limited, the levers limit baffles so as to lock the power mechanism in a state that the sealing valve is closed; when the pressure exceeds a set pressure value, the blasting needle is unstable, when the valve rod mechanism is triggered, the levers do not limit the baffles, so that the levers lose the limiting effect on the power mechanism, and the power mechanism drives the sealing valve to be opened for pressure relief. According to the pressure relief device, the pressure relief precision is high, debris is not generated in the pressure relief process, the maintenance cost is avoided, reset is simple, and the shutdown cost is low; and in addition, the levers and the baffles are coordinated with the action of a control lever, so that the influence of the friction force can be reduced, and therefore the pressure relief device can be more sensitivein response.

A sensor device having a first housing with a first semiconductor body and a plurality of metallic terminal contacts for electrical contacting of a first sensor, and a second housing with a second semiconductor body with a plurality of metallic terminal contacts for electrical contacting of a second sensor. A section of the plurality of terminal contacts penetrates the second housing on the face side and the second semiconductor body is arranged with a back surface on a front side of the second metal substrate. The two housings form a module, whereby the two housings are connected form-fittingly to one another in the shape of a stack by a fixing device in a way in which the bottom side of the first housing is joined to the bottom side of the second housing and the plurality of terminal contacts of the two housings point in the same direction.

The invention relates to a lightweight integrated bearing main shaft unit. The lightweight integrated bearing main shaft unit comprises a main shaft with a load input end and a load output end, the main shaft is sleeved with an integrated outer ring, a row of cylindrical rollers and a row of steel balls are arranged between the main shaft and the inner wall of the integrated outer ring, a linear raceway and an arc channel are respectively arranged at the corresponding positions of the inner walls of the main shaft and the integrated outer ring, the linear raceway is close to the load output end, the arc channel is close to the load input end, the cylindrical rollers roll in the linear raceway, the steel balls roll in the arc channel, the steel balls are in four-point contact with the arc channel, sealing rings are arranged between the two ends of the inner diameter of the integrated outer ring and the outer diameter surface of the main shaft, a limiting groove is formed in the inner wall of the integrated outer ring to limit a cylindrical roller retainer, and a stop groove or a flange is arranged on the outer diameter of the integrated outer ring. The lightweight integrated bearing main shaft unit is compact in structure; and the axial and radial sizes and the overall weight of the main shaft unit are reduced. The lightweight integrated bearing main shaft unit has the advantages of small axial movement, good rigidity, high precision, convenience in installation and use, lower cost and the like.

The invention discloses a broken shaft repairing method. The method includes the following steps that a material preparation step is performed, specifically, a repairing section is prepared and is used for repairing a broken shaft section; a milling step is performed, specifically, a groove / convex part is milled in the end surface of the broken shaft section, a convex part / groove is milled in theend surface of the repairing section, and the shape and size of the convex part are matched with those of the groove; a grooving step is performed, specifically, a groove is formed along the outer edge of the end surface of the broken shaft section, and a groove is formed along the outer edge of the end surface of the repairing section; a welding step is performed, specifically, the convex part and the groove are inlaid in a matched manner, are fixed through spot welding and then are welded, and broken shaft repairing is completed. According to the repairing method, the inlaying shape is improved, the welding step is adjusted, the rigidity is good after a shaft or a roller is repaired, and the machining process is simple.

An electrolytic bath sideliner on-line second line maintenance method relates to aluminium cell maintenance method. It includes 1, adjusting electrolyte aluminum liquid horizontal total height to 35-15cm; 2, adjusting bath voltage to 1.8-5.5 v; 3, keeping cell temperature at 850-1100 degree centigrade; 4, pressing one barrier layer between electrolyte and furnace side; 5, using pneumatic tools to clean electrolytic bath side covered material, electrolyte furnace side, residuary side liner material, depth reaching 20-45cm, whole side being cleaned; 6, laying single-layer carbonaceous paste on cleaned interface with thickness of 1-10cm; 7, using charcoal block or carborundum block laying side of carbonaceous paste; 8, recovering production according to managing method after starting up electrolytic bath. Said invented method can replace whole sideliner material without electrolytic bath stopping operation.

The invention discloses an automatic detecting oil cup and an automatic liquid level detecting method applying the automatic detecting oil cup. The automatic detecting oil cup comprises an oil storagetank body, a cover body, an oil guide device and an oil-fur separator, wherein a liquid level sensor is arranged on the cover body. According to the technical scheme adopted by the invention, the automatic detecting oil cup can realize real-time detection on a liquid level position in the oil cup, can emit an alarm signal while the liquid level is lower than a safe position, reminds a maintenancepersonnel to timely fill lubricating oil into the oil cup to achieve the purpose of grasping oil amount in the oil cup without stopping an elevator to maintain, reduces workload of the maintenance personnel and elevator stop cost of a user, and increases a work safety coefficient of the maintenance personnel.

The invention discloses a gear performance degradation evaluation method based on AR model and dictionary learning. First, use the autoregressive model (AR) to extract the characteristics of the non-faulty samples and the samples to be tested, and use the AR model coefficients of the non-faulty samples to construct an overcomplete dictionary model, and then input the AR model coefficients of the samples to be tested as feature vectors into the dictionary model Get the reconstructed AR model coefficients in . Finally, the autoregressive models are respectively constructed from the original AR model coefficients and the reconstructed AR model coefficients, and the time series modeling of the signal to be tested is completed respectively, and the root mean square error of the residual sequence obtained by the two autoregressive models is used as the performance degradation index The adaptive early warning threshold is set, and the experimental analysis shows that the evaluation index obtained by the performance degradation method proposed in this paper can monitor the performance degradation trend of the gear in real time and can detect the early failure of the gear in time.

An explosion-proof braking device is described, which is configured to be connected to the front flange of an explosion-proof electric motor, the braking device comprising: a shaft (6) connected to the shaft of the motor from the outside, and provided with bearings (7, 8) internal to the device, an electromagnetic brake (11, 12, 13, 14) acting upon said shaft (6), comprising at least one excitation coil (11) and one air gap (10). The shaft (6) is made of a non-magnetic metal alloy, the bearings (7, 8) are so positioned as to lie outside the main flux lines of the magnetic field produced between the coil and the air gap, and the braking device is provided with flame-proof lamination joints of the through or closed type.

The invention belongs to the field of machines and particularly relates to an expanding cone applied to mechanical expanding of a longitudinal welded pipe production line. The expanding cone comprises a conical cone body. A connecting hole and a lubricating oil hole are machined in the big-head end of the cone body. The expanding cone is characterized in that a plurality of rectangular grooves are machined in the outer surface of the cone body, the rectangular grooves are distributed evenly and are the same in width and height in the longitudinal direction, and rhombic conical convex strips are formed between the rectangular grooves of the outer surface of the cone body; each rhombic conical convex strip is provided with two rectangular abrasion-proof strips through countersunk bolts; one side edge of each abrasion-proof strip extends to the position above the corresponding rectangular groove, and consequently each rectangular groove and the corresponding abrasion-proof strip form a longitudinal guide key slot with the T-shaped section in a surrounding mode. The expanding cone solves the problems that machining is difficult, the period is long, material waste is severe and production cost is high in the prior art, and is simple in structure, convenient to manufacture, low in production cost, short in manufacturing period and convenient to repair.