20 results about "Double rotation" patented technology

The utility model discloses an expansion bolt with a positioning mechanism, belongs to the technical field of expansion bolts, and solves the problems that a positioning groove needs to be formed in a wall mounting hole in advance in an existing device, the bolt needs to be rotated forwards and backwards twice, and use is troublesome. A bolt is arranged in the threaded sleeve in a threaded and sleeved mode, expansion pieces distributed in an annular array mode are fixedly installed at the right end of the threaded sleeve, a self-tapping screw is fixedly installed in the middle of the left end of the bolt, the bolt and the self-tapping screw penetrate through an installed object and are screwed into the threaded sleeve, then the bolt is rotated, and in the process, the expansion pieces are screwed into the threaded sleeve, and the expansion pieces are screwed into the threaded sleeve. The self-tapping screw rotates along with the bolt and is drilled into the inner wall of the mounting hole, the left end of the bolt expands the expansion piece outwards, the bolt is further limited through the self-tapping screw, the situation that the bolt falls off due to external vibration is avoided, and a mounted object can be fixed only by rotating the bolt in one direction.

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.

The utility model discloses a laser nozzle dismounting and mounting mechanism which comprises a mounting seat of a hollow structure, a plurality of mounting holes are formed in the outer wall of the mounting seat, a butt joint is fixedly communicated with the bottom of the mounting seat, the inner wall of the butt joint is slidably connected with a nozzle body, the outer wall of the nozzle body is fixedly connected with two arc-shaped clamping blocks, and the two arc-shaped clamping blocks are fixedly connected with the mounting seat. The outer wall of the butt joint is fixedly connected with two arc-shaped contact blocks, and the outer walls of the two arc-shaped contact blocks are fixedly connected with limiting blocks. The non-thread structural design eliminates the risk of thread solidification caused by high temperature and scale deposition, and it is ensured that the screw can still be disassembled smoothly after being used for a long time; the buckle type locking does not need to apply torque, mechanical damage is prevented, and the air leakage probability is reduced; the arc-shaped clamping blocks are matched with the limiting blocks to achieve accurate alignment, the side blocks provide double rotation limiting, and the connection stability is guaranteed; and the circular ring drives the side block to vertically move to unlock or lock the clamping block, so that the replacement process is simplified, and the maintenance efficiency is improved.

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).

The utility model relates to the technical field of compressor accessory machining, and discloses a compressor accessory electric spark machining guide structure which comprises a mounting plate, an electrode and an adjusting plate, the front side of the mounting plate is rotationally connected with a rotating column, the front end of the rotating column is fixedly connected with a mounting base, and the left end and the right end of the front side of the mounting plate are rotationally connected with rotating shafts; an adjusting plate is fixedly connected to the outer wall of the rotating shaft, fixing plates are fixedly connected to the left end and the right end of the front side of the mounting plate, adjusting rotating bolts are connected to the sides, away from each other, of the two fixing plates in a threaded mode, and the adjacent ends of the two adjusting rotating bolts penetrate through the outer walls of the fixing plates and are rotationally connected with connecting pieces. According to the utility model, a dual-rotation mechanism is adopted between the adjusting rotating bolt and the connecting piece, the adjusting rotating bolt is rotated to push the adjusting plates on the two sides to rotate, accurate adjustment is carried out, the guiding and angle adjustment of the electrode are completed, and the machining of accessories with different asparagus angles can be realized.

The invention relates to the technical field of yoke sleeve production, and discloses a shock absorber electromagnetic valve yoke sleeve production process which comprises the following steps that S1, firstly, a plurality of bars are fixedly installed on a pickling device through a clamping and fixing assembly, the pickling device is fixed to the periphery of a lifting base, and the bars are distributed in a circumferential mode; the bars can be rapidly fixed between the fixing plate and the lifting plate through the clamping assemblies, the multiple clamping assemblies are arranged circumferentially, all the bars are evenly separated and do not make contact with each other, meanwhile, the rotary table rotates to drive all the clamping assemblies and the bars to revolve around the lifting base, and therefore the clamping assemblies can be fixed to the position between the fixing plate and the lifting plate. And in cooperation with meshing transmission of the first gear and the second gear, a single bar is driven to rotate, double rotation is achieved, it is ensured that the surfaces of the bars make contact with acid liquor, washing liquor and neutralizing liquor without dead angles by 360 degrees, and the batch treatment efficiency and the surface treatment consistency are both considered.

The utility model relates to the technical field of microbial agent mixing and preparing, and discloses a microbial agent mixing and preparing device for soil remediation, which comprises a support base, a second gear is mounted in the support base, a feeding pipe is mounted at the top end of a mixing cylinder, a rotating ring is fixed on one side of each support, and a rotating shaft is fixed on the other side of each support. And rotating grooves are formed in the rotating rings, rotating blocks are movably arranged in the rotating grooves, and one sides of the rotating blocks are fixed to one side of the mounting plate. According to the mixing device disclosed by the utility model, components such as the rotating ring, the rotating shaft, the first servo motor and the rotating groove are arranged, so that medicaments in the mixing cylinder are mixed through the first gear and the second gear when the mixing device is used, and meanwhile, the device is driven to rotate and work through the components; therefore, the device has a better mixing effect on the medicament under the action force of double rotation, and the mixing efficiency is greatly improved.

The utility model discloses a chain punching device which comprises a base and a punching part arranged on the base in a lifting mode. A rotary air cylinder is arranged on the base, and a clamp matched with a chain link plate is arranged on the rotary air cylinder. A rotating shaft fixedly matched with the clamp is arranged on the rotating cylinder; after the chain link plate is matched with the clamp, the rotating shaft is located at the midpoint of the connecting line of the hole bodies on the two sides of the chain link plate, and the punching part and the hole body on any side are in the coaxial state. The clamp achieves coaxial matching switching of the hole bodies on the two sides and the punching part through rotation of the rotating shaft. Through the linkage design of the rotary air cylinder and the clamp, one-time clamping and two-time rotary positioning of chain link plate double-hole machining are achieved, and manual intervention and positioning errors are reduced; and the elastic clamping pin is matched with the ejection assembly, so that the clamping and unloading time is remarkably shortened, and the device is suitable for batch production.

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 invention provides a gas turbine overhauling tool which comprises a fixed disc, an operation cylinder is concentrically and rotationally inserted into the fixed disc, an operation rod is concentrically inserted into the operation cylinder, a movable disc rotating and moving synchronously with the operation rod is arranged at one end of the operation rod, and a plurality of insertion pieces are contained in the side, facing the fixed disc, of the movable disc at equal intervals in the circumferential direction of the fixed disc. The operation rod is driven to rotate in the first direction relative to the operation cylinder, so that the insertion pieces can centrifugally move on the fixed disc so as to protrude out of the fixed disc. The operation cylinder is driven to rotate in the second direction relative to the operation rod, so that the operation rod drives the movable disc and the insertion piece to move away from the fixed disc in the axial direction of the operation rod. The tool is inserted from the head of the cross flame tube and moved to the position of a gap between the cross flame tube and a flame tube, the gap between the cross flame tube and the flame tube can be conveniently, efficiently and sequentially jacked tightly and the flame tube can be stably disassembled from the tail of the cross flame tube only by rotating the head of the cross flame tube twice, and the operation efficiency is high.

The invention relates to a hybrid air engine with a combined cycle comprising an in-line or V-type multi-cylinder block, wherein several cylinders operate in a two-stroke compression cycle requiring one 360º revolution of the crankshaft to be completed, and several cylinders operate in a four-stroke internal combustion cycle requiring two 720º revolutions of the crankshaft to be completed.

The invention discloses a double-beam crane with a lifting hook locking function, and particularly relates to the technical field of cranes, the double-beam crane comprises two cross beams which are symmetrically distributed front and back, the upper ends of the two cross beams are fixedly connected with first guide rails, and the left ends and the right ends of the two first guide rails are fixedly provided with first limiting switches used for limiting the moving range; the upper ends of the two first guide rails are jointly provided with a driving mechanism, the upper end of the driving mechanism is fixedly provided with a lifting structure, the left side and the right side of the cross beam are symmetrically provided with longitudinal guide structures for guiding the moving track of the cross beam, and the lower end of the lifting structure is provided with a hoisting structure for hoisting materials. According to the double-beam crane with the lifting hook locking function, double rotating locking of the lifting hook is achieved through cooperation of the locking assembly and the hook head, anti-disengaging protection of the sling is achieved through the spring pressing plate, the running stability of equipment and the safety of hoisting operation are effectively improved, loads are dispersed, part abrasion is reduced, and the overall service life of the equipment is prolonged.

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 relates to a novel milling, drilling and boring all-in-one machine with a tiltable upright post and double rotation, which belongs to the technical field of machine tools and comprises a base and an upright post, a rack mounting groove is formed in the front surface of the upright post, and dovetail track grooves are formed in the inner walls of the left side and the right side of the rack mounting groove; two rail extending blocks are symmetrically mounted at the bottom of the dovetail rail groove, and the bottom of the rack mounting groove is of an opening structure. According to the novel double-rotation milling, drilling and boring all-in-one machine capable of movably working and provided with the tiltable stand column, through the integrated design of the dovetail rail groove and the stand column, the defect that precision is reduced due to looseness caused by frequent use and vibration of equipment when a steel bar is fixed through a traditional screw is overcome, the steel bar and the stand column form a stable whole, and the structural stability is improved; the two symmetrical long track extending blocks are additionally arranged below the stand column, so that the track can slide downwards, cutting towards a lower position in actual work is facilitated, the device is particularly suitable for workpieces needing to be milled and drilled at a lower position, the machining range is expanded, the top of the stand column is sealed through the connecting sealing plate, and the rigidity of the stand column is enhanced.

The invention relates to the technical field of elevator detection, in particular to an in-use elevator static braking torque monitoring system which is used for monitoring a braking spring of an elevator drum brake and comprises a center shaft foundation, an outer driving ring, a contact lantern ring, an inner combiner, a jacking assembly and a pressure sensor. The monitoring system is compact in structure, a traditional screw used for penetrating through a brake spring is replaced in a normal state, monitoring can be rapidly carried out when the elastic force of the spring needs to be monitored, and the brake torque can be conveniently obtained in the follow-up process. The monitoring system is easy to operate, and switching between a normal state mode and a monitoring mode can be achieved only through conventional torsion operation. In a normal mode, a double-thread screw in the prior art can be replaced to place a brake spring; in the monitoring mode, the elastic force of the spring can be directly obtained through two times of rotation operation, so that the braking torque can be obtained subsequently.

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.

The utility model discloses a surface treatment device for a brake drum, and belongs to the technical field of surface treatment. Comprising a cleaning box, a sealing cover is arranged above the cleaning box, an extension rod is rotationally connected to the lower portion of the interior of the sealing cover, a clamping block is fixedly connected to the lower end of the extension rod, and a cleaning mechanism is arranged in the cleaning box; the cleaning mechanism comprises a fixing frame located in the cleaning box, a plurality of grid frames are arranged above the multiple ends of the fixing frame, fixing gears meshed with each other are rotationally connected to the center of the lower end face of the fixing frame, and an extension rod and a clamping block are driven by a motor to rotate, so that the fixing frame, the grid frames and a brake drum revolve. Meanwhile, the supporting block limits the fixed gear, and the transmission gear revolves and rotates around the fixed gear to drive the grid frame to rotate. By means of the dual-rotation mode, all angles of the surface of the brake drum can make full contact with the detergent, stains on the surface of the brake drum are effectively removed, and the cleaning effect and the working efficiency are greatly improved.