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63results about How to "Decrease the declination" patented technology

Deep hole and ultra-deep hole static cone penetration test method and apparatus

The invention relates to a deep hole and ultra-deep hole static cone penetration test method and apparatus. The apparatus is provided with two to five sleeves with diameters from large to small, and each of all the sleeves is provided with a sleeve connector matched with the corresponding sleeve except the sleeve with the largest diameter. Each sleeve connector is provided with an annular tray, and threads are formed in the upper opening and the lower opening of each sleeve connector. When testing is carried out, a static cone penetration test is carried out by adopting a conventional static cone penetration method, the frictional resistance of the side wall of a feeler lever is too large, transmission cannot be effectively carried out to a cone penetration probe, and the depth of cone penetration is affected, overlaying soil is drilled in advance in a preboring manner, the apparatus is protected additionally, and the diameter ratios, the number of layers of the sleeves and the buried depth are selected according to the depth of cone penetration and the requirements for sleeve reducing. The sleeve with the largest diameter is buried in soil and serves as a fixing sleeve with soil friction, and the other sleeves are lowered one after another and are hung on the sleeve on the outermost layer through the annular trays. Hole cleaning is carried out to the preset depth, the static cone penetration probe and the feeler lever are used for testing through the sleeve with the smallest diameter and an alloy bit. With the deep hole and ultra-deep hole static cone penetration test method and apparatus, the deflection angle of the probe can be decreased, and the test depth can be increased.
Owner:CHINA MAJOR BRIDGE ENERGINEERING

Four-winding-drum hoisting mechanism and container crane

The invention discloses a four-winding-drum hoisting mechanism and a container crane. A first winding drum, a second winding drum, a third winding drum and a fourth winding drum are arranged on a trolley. A first fixed pulley, a second fixed pulley, a third fixed pulley and a fourth fixed pulley are arranged on the trolley. A first movable pulley block, a second movable pulley block, a third movable pulley block and a fourth movable pulley block are arranged on a hoisting appliance. A first steel wire rope is drawn out from the first winding drum and wound on the first movable pulley block and the first fixed pulley. A second steel wire rope is drawn out from the second winding drum and wound on the second movable pulley block and the second fixed pulley. A third steel wire rope is drawn out from the third winding drum and wound on the third movable pulley block and the third fixed pulley. A fourth steel wire rope is drawn out from the fourth winding drum and wound on the fourth movable pulley block and the fourth fixed pulley. According to the four-winding-drum hoisting mechanism and the container crane, the hoisting appliance can incline forwards, backwards, leftwards and rightwards, rotate and stably hoist by means of the differential control over the four winding drums, and driving anti-swing and driven swing reduction can be achieved. In addition, the stress of the hoisting mechanism is optimized, the total weight of the trolley is decreased, and the manufacturing cost is low.
Owner:SANY MARINE HEAVY IND

Side-driving-type all-position automatic welding trolley traveling mechanism for pipeline

InactiveCN109702400AReduce processing and assembly difficultyImprove stabilityWelding/cutting auxillary devicesAuxillary welding devicesCamEngineering
The invention relates to a side-driving-type all-position automatic welding trolley traveling mechanism for a pipeline. The side-driving-type all-position automatic welding trolley traveling mechanismis constituted by four sets of following assemblies which are the same in structure, and double floating locking structures; the double floating locking structures enable the following assemblies tobe attached to and press a rail tightly, and a welding trolley is driven through friction force to travel along the rail; the double floating locking structures are constituted by driving devices, sliding locking devices and cam devices; the sliding locking devices are matched with U-shaped grooves in a box body, and thus the sliding locking devices make horizontal linear sliding on the box body;the driving devices are arranged in the sliding blocking devices, and thus the driving devices and the sliding locking devices make relative linear movement; the lower sides of the cam devices and thebox body are connected; the four sets of following assemblies can be mutually exchanged, and the machining and assembling difficulty is lowered; the declination angle of a following wheel is reduced,and as for small-pipe-diameter welding, the stability can be effectively improved; and the following wheel and a driving wheel are arranged in a floating mode, pressing force of the driving wheel forthe rail is directly adjusted by adjusting compression force of a rubber spring, normal operation of the welding trolley is ensured, and abrasion of the driving wheel to the rail is reduced.
Owner:LUOYANG DEPING TECH

Multi-rope lifting system for ultra-deep vertical shaft and guiding method of multi-rope lifting system

The invention discloses a multi-rope lifting system for an ultra-deep vertical shaft and a guiding method of the multi-rope lifting system, and belongs to the technical field of mine lifting. The multi-rope lifting system comprises an upper guiding wheel system, a lower guiding wheel system, a front lifting container, a rear lifting container, a driving unit, a front lifting rope, a rear lifting rope, a tail rope and a plurality of balance head ropes, wherein the front lifting rope is lapped on the upper guiding wheel system, one end of the front lifting rope is connected with the top of the front lifting container, and the other end of the front lifting rope is connected with the driving unit; the rear lifting rope is lapped on the lower guiding wheel system, one end of the rear lifting rope is connected with the top of the rear lifting container, and the other end of the rear lifting rope is connected with the driving unit; one end of the tail rope is connected with the bottom of thefront lifting container, and the other end of the tail rope is connected with the bottom of the rear lifting container; and the balance head ropes are lapped on the upper guiding wheel system, one end of each balance head rope is connected with the top of the front lifting container, and the other end of each balance head rope is connected with the top of the rear lifting container. According tothe multi-rope lifting system, the balance head ropes are arranged, so that the traction load borne by the driving unit is greatly reduced, the effective service life of the driving unit is greatly prolonged, and the multi-rope lifting system for the ultra-deep vertical shaft can carry out lifting operation with larger load.
Owner:CHINA UNIV OF MINING & TECH

Digital low-light sighting telescope optical system

ActiveCN102495464BMeet the needs of visual observation and aimingDecrease the declinationTelescopesMagnifying glassesFiberEyepiece
The invention discloses a digital low-light sighting telescope optical system which comprises a main optical path which is formed by an object lens system, an image intensifier and an ocular lens system, wherein a light composition prism, an image rotation system, a light splitting prism and a CCD relay system are arranged between the image intensifier and the ocular lens system, the light composition prism, the image rotation system and the light splitting prism are positioned on the main optical path in order, the light composition prism is cooperated with an OLED display apparatus, an OLED display surface and an image intensifier fiber panel position are in conjugation, the OLED display surface and an image intensifier image plane are combined to a main channel of a sighting telescope, and the CCD relay system and the light splitting prism are in cooperation. Apart from a sighting function of a common sighting telescope, the sighting telescope also has functions of television shooting, video image and aiming partition superposition, transmission of an acquired video to a line concentration controller in a wireless transmission mode, display of the video through a display apparatus and the like, and interoperability and cooperation capability between users are effectively raised.
Owner:HENAN COSTAR GRP CO LTD
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