42results about How to "Reduce replacement and repair costs" patented technology

The present invention relates to a wind turbine enabling a cost effective and easy attachment / replacement of rotor blades and to a method of attaching a rotor blade to a hub of a wind turbine. The wind turbine in accordance with the invention comprises a tower resting on a base, at least one rotor blade having a blade connector portion, a nacelle housing a shaft to which a hub is attached, the nacelle being mounted atop the tower. Said hub of the wind turbine comprises a plurality of hub connection flanges, each hub connection flange being adapted to be detachably connected to a blade connector portion of a rotor blade.

A picnic table system is provided that is modular in design for ease of storage out of inclement weather when not in use. A bench assembly sits atop two pedestal-type legs and the table top and is supported by the upper portion of the pedestal legs. Both the top and the benches are secured by frictional impingement. When the structure is to be moved, the bench assembly, table top and the two pedestal legs are stored in a manner conserving floor or storage space. The ability to store the structure inside during inclement weather or during off season allows for increased life of the structure, thus saving the user replacement or repair costs as well.

A short screw extruder comprises a cylinder (1), a screw (2), and an injection shaft (3). The screw (2) comprises a screw body provided with a central through hole. The screw body comprises a left support part (2.3) and a right support part (2.4). An external screw edge (2.1) of the screw body is arranged between the left support part and the right support part. An internal screw edge (2.2) is arranged in the central hole of the screw body from a position corresponding to the right support part (2.4) in the hole. One section of the left support part (2.3) and one section of the right support part (2.4) are rotatingly matched in the cylinder (1). The injection shaft (3) is arranged in the internal screw edge (2.2). The spiral directions of the external screw edge (2.1) and the internal screw edge (2.2) are opposite. Because the external spiral channel is folded relative to the internal spiral channel, the length of screw is reduced, and thus the extruder is minimized.

The invention discloses a disassembling clamping apparatus for a valve core of a steam intake valve. The disassembling clamping apparatus comprises a center rod, a fixed flange and a valve core spanner, wherein the center rod comprises a head structure, a center screw rod and a tail structure; the head structure and the tail structure are separately positioned at two ends of the center screw rod; the center screw rod is in thread connection to the fixed flange; the head structure and the tail structure are separately positioned on two sides of the fixed flange; the fixed flange is detachably connected with the steam intake valve; the valve core spanner is detachably fixed on the tail structure of the center rod. The disassembling clamping apparatus disclosed by the invention solves the difficult problem that after the valve core of the steam intake valve is damaged, the valve core is locked up and is not liable to disassemble; the maintenance efficiency of the valve is improved; the replacement and maintenance cost of the steam intake valve is reduced. In addition, the disassembling clamping apparatus disclosed by the invention is simple in structure, convenient to manufacture, and low in manufacturing cost, and components which are easy to damage can be replaced.

The invention provides an automobile radiator which is configured in a circulation path of automobile cooling liquid. The automobile radiator comprises a framework, a first water chamber assembly, a second water chamber assembly, a third water chamber assembly, a fourth water chamber assembly and a water delivery assembly, wherein the first water chamber assembly, the second water chamber assembly, the third water chamber assembly, the fourth water chamber assembly and the water delivery assembly are connected onto the framework. The water delivery assembly comprises a water inlet portion and a water outlet portion which are arranged in a separated mode. The first water chamber assembly, the second water chamber assembly, the third water chamber assembly and the fourth water chamber assembly are arranged on the circulation path of the cooling liquid in parallel, the first water chamber assembly and the third water chamber assembly are arranged on one side of the water delivery assembly, the second water chamber assembly and the fourth water chamber assembly are arranged on the other side of the water delivery assembly, and each water chamber assembly is connected with the water inlet portion and the water outlet portion. The manufacturing cost and the replacing and maintenance cost of the automobile radiator are lowered.

The invention relates to the technical field of inhaul cables, in particular to a waterproof inhaul cable. The waterproof inhaul cable comprises an inhaul cable body and a waterproof joint connected to the periphery of the inhaul cable body. The inhaul cable body is wrapped with a plurality of stranded wires. As for the waterproof joint, an upper casing pipe is connected with an upper plug, an upper sealing block is arranged in the upper casing pipe and is in threaded connection with the inner wall of the upper casing pipe, the inner wall of a connection casing pipe is provided with a stop block extending in the axial direction, an upper sealing ring is arranged between the upper casing pipe and the connection casing pipe, a lower casing pipe is connected with a lower plug, a lower sealingring is arranged between the lower casing pipe and the connection casing pipe, a lower sealing block is arranged in the lower casing pipe and is in threaded connection with the lower casing pipe, anda plurality of spiral guide blocks are fixedly connected to the inner walls of the upper sealing block and the lower sealing block. The problem of poor waterproof performance of joints of existing inhaul cables is solved through clearance fit between the spiral guide blocks and every two adjacent stranded wires, the structure is simple, operation is convenient, the waterproof performance is better, the service life of the waterproof joint is prolonged, and the replacement cost and maintenance cost of the waterproof joint are reduced.

The invention discloses a rigidity-seal ball valve with a guide rail. The rigidity-seal ball valve with the guide rail is characterized in that a valve clack and an inner passage ring are arranged in a fluid passage of a valve body; the valve clack takes the shape of a hemispheroid; a rotating guide groove is formed in the inner side surface of the valve clack; the depth of the guide groove is gradually reduced from the start end to the tail end; the lower end of the inner passage ring is fixedly mounted on the inner wall of the valve body; a guide jacking block is arranged on the left side surface of the lower end of the inner passage ring; the jacking block is matched with the guide groove; a mounting hole is formed in the neck part of the valve flack; the inner wall of the mounting holes adopts a convex arc structure; the lower end of a valve rod is arranged in the mounting hole; the valve rod is in transmission with the valve clack to enable the valve clack to rotate to open or close; when the guide groove moves along the guide jacking block, the valve clack is enabled to be deviated to be separated from or to be in fit with a valve base; an elastic device is arranged between the outer side of the lower end of the hemispheroid valve clack and the valve body. The rigidity-seal ball valve with the guide rail is simple in structure, and convenient to use, can effectively reduce wear between the valve clack and the valve base, can make up a gap caused by wear through rotation offset of the valve clack, and the sealing performance keeps good.