7 results about "Double rotation" patented technology

The present application relates to the field of bridge construction, disclose a kind of double rotation surface swivel support with self-centering function, including middle seat plate, the top of the middle seat plate is fixedly connected with steering mechanism, the top of the middle seat plate is slidably connected with support mechanism, the steering mechanism includes rotating shaft, the bottom of the rotating shaft is fixedly connected with the top of middle seat plate, the inner wall of the middle seat plate is equipped with first wear plate groove, the inner wall of the middle seat plate is equipped with first sealing groove, the bottom of the middle seat plate is fixedly connected with boss, the outer surface of the rotating shaft is rotatably connected with upper spherical hinge. Bridge swivel is rotated by spherical surface rotating friction pair, when difficult to pull and jammed due to adverse working conditions, increase the pulling force to make the conical surface rotating pair enter the rotating working state, the design of conical surface can avoid the eccentricity caused by excessive pulling force, further strengthen the safety of swivel device, conical surface rotating pair cooperates with spherical surface rotating pair to ensure the smooth construction of bridge swivel.

There is provided a solid-state nuclear magnetic resonance, NMR, probe (10). The probe (10) comprises: a cylindrical stator (103), the cylindrical stator (103) configured to receive a cylindrical sample rotor (107); a single gas input (111), configured to provide gas to the cylindrical stator (103); wherein the single gas input (111) is configured to be orientated to direct the gas along an inner surface of the cylindrical stator (103) thereby to cause a double rotation of the cylindrical sample rotor (107).

This utility model relates to the field of ham processing technology, and more particularly to a multi-layer ham smoking and baking equipment. The multi-layer ham smoking and baking equipment includes a smoking barrel with a suspension structure installed inside. The suspension structure includes a mounting frame rotatably connected inside the smoking barrel. A drive motor is fixedly installed on the top of the smoking barrel, and the output end of the drive motor is fixedly connected to the top of the mounting frame. Multiple vertically distributed fixing rings are fixedly installed on the mounting frame, and multiple annularly distributed gears are rotatably connected to each fixing ring. A hook is fixedly installed at the lower end of each gear. A drive disc for rotating the gears is installed inside the smoking barrel. A smoke conveying structure is also installed on one side of the smoking barrel. This utility model allows for multi-layer suspension of ham, increasing the throughput of a single smoking cycle. The central annular exhaust, combined with the double rotation of the ham, enables comprehensive smoking of the ham, improving the smoking quality.

The utility model discloses a sand blasting clamp for machining relates to sand blasting auxiliary equipment technical field. The clamp includes rotatable base and rotatable clamping device on base, and clamping device contains rotating frame, clamping arm, chuck and drive arrangement. Drive arrangement can drive clamping arm movement to clamp work piece, and the rotation structure of rotating frame and base can realize work piece multi -angle sand blasting. The utility model discloses through the collaborative setting of multiple clamping devices, can carry out stable clamping to multiple work pieces simultaneously, and combines the double rotation function of base and rotating frame, can flexibly adjust the sand blasting angle and position of work piece, has improved the efficiency and uniformity of sand blasting processing significantly. Its compact and reasonable structure design, convenient operation is applicable to the sand blasting treatment of multiple specifications work pieces, has outstanding practicality and popularization value.

The utility model discloses an anti -interference GNSS positioning antenna structure for ocean surveying and mapping relates to ocean surveying and mapping and antenna technical field. The structure includes support pole, adjusting base, fixed base plate, radiator and connecting feeder. The support pole lower extreme welds adjusting base, and the bottom surface welds fixed base plate, and the upper end installs radiator, and the radiator is connected the feeder through metal interface. Adjusting base adopts double rotation adjusting structure: through one inner clamping groove ring, one inlay block, one toothed block and one spring, realizes the inclination angle adjustment of radiator, realizes the adjustment to the direction through two inner clamping groove rings, two inlay blocks, two toothed blocks and two springs, and the toothed block is cooperated with the clamping groove and is guaranteed angle fixed firm, can be nimblely aimed at satellite signal intensity direction, promotes the receiving efficiency. Fixed base plate adopts inner hexagonal screw and double fixedness of sticky layer, and the screw guarantees long -term firm installation, and the sticky layer temporarily maintains stable when the screw loosens, and rubber pad plays the role of buffering and antiskid, and enhances the installation reliability.

The utility model discloses an injection molding integral forming trolley support relates to trolley support field. The injection molding integral forming trolley support includes square shell part and sets up the arc shell part and axle body part on square shell part, the arc shell part is set up and is used for the wheel axle groove of trolley axle spacing, axle body part is used for installing support horizontal steering axle body. The injection molding integral forming trolley support adopts integral forming design, reduces the quantity of parts and assembly process, first bearing limiting portion and second bearing limiting portion form double rotation limit, and stress is stable, and horizontal steering stress is better, and the design of inner reinforcing rib and mounting groove is convenient for installing brake structure, and subsequent maintenance is convenient, arc shell reinforcing rib, reinforcing rib board and annular reinforcing rib etc. Structure strengthens the overall strength of trolley support, improves its service life.

The utility model belongs to gear drive and speed reducer technical field, specifically disclose a gear box torque test bench, including device frame, the outer surface of device frame is connected with support frame through fastening mechanism sliding, support frame is provided with a plurality of evenly distributed sleeve, the sleeve is movably inserted with drive shaft, the top fixed mounting of device frame has fixed cylinder, the bottom rotatable connection of fixed cylinder has internal thread, the outer surface fixed connection of internal thread has connecting plate. The gear box torque test bench, through double rotation coordination mechanism can make the friction head in the rotation simultaneously revolve, thereby let the friction head to all drive shafts contact friction, namely can carry out temperature rise test to multiple drive shafts simultaneously, has guaranteed to each drive shaft's friction condition is consistent, this kind of design avoided the test error of traditional test because of the friction condition is not uniform, improved the precision of temperature rise test.