36results about How to "Avoid violent friction" patented technology

The invention discloses an automatic fine drilling machine. The automatic fine drilling machine comprises a support plate, a working disc rotating in the horizontal direction is rotatably connected to the support plate, a plurality of clamping bases used for containing objects are arranged on the working disc, the support plate is provided with a driving device used for driving the working disc to rotate and comprises a feeding inlet and a discharging outlet along the rotating track of the working disc, a plurality of drilling stations are arranged between the feeding inlet and the discharging outlet along the rotating track of the working disc, each drilling station corresponds to one clamping base, and the drilling stations machine objects arranged on the clamping bases through the lifting action of drill bits. According to the automatic fine drilling machine, a plurality of the clamping bases are arranged in the circumferential direction of the working disc, multiple objects arranged on the clamping bases can be machined simultaneously in the rotating process of the working disc, therefore, the drilling and machining efficiency is improved, automation, high precision, high reliability, safety, environmental friendliness and energy saving are achieved, and repairing and maintaining are convenient.

A mop cleaning dewaterer comprises a case. A motor is arranged at the inner bottom of the case, an inner container is arranged in the case, the bottom end of the inner container is fixedly connected with the end of a motor rotor, and a projecting structure is arranged in the inner container. A mop is placed into the inner container, the motor drives the inner container to rotate, the mop can be effectively cleaned, the projecting structure can drive water to rotate when the inner container rotates, and the mop is scrubbed.

The invention relates to a suspension apparatus of a ship main engine. The suspension apparatus comprises wire ropes, and further comprises a suspension frame. A left end on the top of the suspension frame is connected with a first traction part through a first wire rope (111). A right end on the top of the suspension frame is connected with a second traction part through a second wire rope (211). A left end on the bottom of the suspension frame extends to a first suspension point (A) of a main engine (5) through a third wire rope (112). A right end on the bottom of the suspension frame extends to a fourth suspension point (D) of the main engine (5) through a fourth wire rope (212). A middle portion of the suspension frame is provided with space, wherein a middle wire rope passes through the middle portion of the suspension frame from top to bottom, and extends to a corresponding second suspension point (B) and a corresponding third suspension point (C) in the space. An upper end of the middle wire rope is connected with a third traction part. Compared to the prior art, the apparatus provided by the present invention has the following advantages that: the structure of the apparatus is simple; the pulley block is not required; the apparatus is easy to be used; the production cost of the apparatus is low; the suspension beam structure of the apparatus is solid and stable so as to provide longer service life.

Disclosed are a rapid intelligent detection system and a rapid intelligent detection method for an inclined shaft section of a water delivery gallery. The system comprises an operating platform and a detection trolley. The operating platform is connected with the detection trolley through a cable. A ballast water tank is arranged on the operating platform. A high-definition infrared camera is arranged on the detection trolley and looks around and scans by 360 degrees along the vertical movement direction of the detection trolley, and data are transmitted outwardly by a wireless communication device. The method includes scanning a first profile of an inclined shaft of the water delivery gallery, positioning chromatic aberration of the first profile of the inclined shaft of the water delivery gallery, judging the first profile of the inclined shaft of the water delivery gallery, moving to and scanning a second profile of the inclined shaft of the water delivery gallery, positioning chromatic aberration of the second profile of the inclined shaft of the water delivery gallery, judging the second profile of the inclined shaft of the water delivery gallery, repeating the steps until moving to a Yth profile of the inclined shaft of the water delivery gallery, and completing scanning, chromatic aberration positioning and judging of the Yth profile. The rapid intelligent detection system and the rapid intelligent detection method have the advantages that defects of the profiles of the water delivery gallery of a ship lock can be recognized and positioned rapidly and accurately, so that the defects such as low manual detection efficiency and poor effect are overcome.

The invention provides an integrated ABS sensor automobile hub bearing unit. The integrated ABS sensor automobile hub bearing unit is characterized in that an inner ring is fastened on the outer circle of the end part of an internal flange plate; a first raceway is arranged between the inner ring of and an external flange plate; a first magnetic cage is mounted in the first raceway; a first rolling body is mounted in a pocket of a first magnetic cage; an internal side sealing ring is arranged between the inner ring and the external flange plate; a second raceway is arranged between the external circular surface of the other end of the internal flange plate and the internal circular surface of the external flange plate; a second magnetic cage is mounted in the second raceway; a second rolling body is mounted in a pocket of a second magnetic cage; an external side sealing ring is arranged at root parts of the internal flange plate and the external flange plate; a gear ring is arranged ina position, between the first rolling body and the second rolling body, on the external circular surface of the internal flange plate; a three-chip ABS sensor is inserted in a circular through hole formed in the middle part of the external flange plate; and a three-chip ABS sensor fixing ring is fixed on the external flange plate by using an internal hexagonal bolt.

The invention relates to a vertical shaft wind driven generator, in particular to a blade and an impeller which are capable of improving the efficiency of the vertical shaft wind driven generator and running stably without noise. The blade of the vertical shaft wind driven generator consists of a main wing and auxiliary wings, wherein the cross section of the blade is wing-shaped, and the auxiliary wings are bent towards a wheel axle, are arranged in vertical symmetry and are connected with a main wing section to form the blade. According to the blade with a bent structure and the impeller consisting of the blade, when the blade rotates around the center line of the wheel axle, an auxiliary wing section can reduce the loss of swirling airflow of the blade, so that the efficiency of the wind driven generator is improved; the rotation moment of the blade can be increased, and low-wind-speed start and operation of the impeller are realized; and the bending stress of the blade can be reduced, the blade is lighter, the rotating speed of the blade is higher, and the operation stability of the impeller is enhanced. The blade has a streamline shape, so intense friction and cutting with the airflow are avoided, and the noise of the wind driven generator can be eliminated.

The invention discloses an electric control type polishing device with an adjustable polishing radius, and relates to the technical field of polishing devices.The electric control type polishing device comprises a fixing frame, wherein a driving motor is mounted on the top of the fixing frame, an output end of the driving motor is coaxially and fixedly connected with a control block, a rotating speed sensor is mounted at the output end of the driving motor, the control block is rotatably connected to the bottom of the fixing frame, a plurality of narrow-opening sliding grooves are formed in the bottom of the control block in a radial mode, and the ends, far away from the control block, of the narrow-opening sliding grooves penetrate through the control block and are internally connected with sliding blocks in a sliding mode. When a large plane of a workpiece is polished, the rotating speed of the output end of the driving motor is increased to drive the control block to rotate at a high speed, the sliding blocks connected to the control block in a sliding mode control part of an elastic force of a spring under a centrifugal effect, and the sliding blocks slide outwards along the narrow-opening sliding grooves in the control block, so that a polishing radius of each sliding block is increased, and the polishing range is enlarged, and meanwhile, the polishing efficiency to the surface of the workpiece is doubly improved in a high rotating speed state.

The processing device comprises an inflation pressurization assembly, a riser funnel and a grain forming mold, the inflation pressurization assembly is composed of an air storage tank, a pressure gauge and an air valve, an observation window is formed in the top of the air storage tank, the pressure gauge is arranged on the side wall of one side of the air storage tank, and the air valve is arranged on the side wall of the other side of the air storage tank. And an air valve is arranged on the side wall of the other symmetrical side. The device has the advantages that the safety degree is high in the slurry mixing process, the mixing uniformity is good, the grain density is high, the charging defects such as coarse crystals, shrinkage cavities, air holes and cracks in the grain forming process are avoided, the grain quality is good, the production efficiency is high, the application range is wide, grains with the diameters ranging from 50 mm to 500 mm can be manufactured, and the production cost is low. Fine, safe and efficient preparation of the high-solid-content and high-density fused cast explosive column is achieved, the process technical problem that the mixing safety of high-viscosity and high-energy fused cast explosives and the casting forming quality of the explosive column are affected is solved, and the charging requirement of a conventional efficient damaged ammunition warhead is met.

The invention discloses a mould device. The mould device comprises an upper mould plate and a lower mould plate, and further comprises a lower mould cylinder, an upper mould cylinder and a copper sleeve, wherein the lower mould cylinder is fixedly connected with the lower mould plate; a first through hole is formed in the middle of the lower mould cylinder; the upper mould cylinder is fixedly connected with the upper mould plate and can slide in the first through hole; the copper sleeve detachably sleeves the outer side wall of the upper mould cylinder; a plurality of second through holes of which the axes are perpendicular to the axis of the copper sleeve are formed in the side wall of the copper sleeve; balls capable of rolling in the second through holes are arranged in all the second through holes; and the diameter of each ball is greater than the thickness of the side wall of the copper sleeve. The mould device provided by the invention has the advantages that when the upper mould cylinder slides in the lower mould cylinder, the friction between the balls, namely steel balls, and the upper mould cylinder, the friction between the steel balls and the lower mould cylinder, as well as the friction between the upper mould cylinder and the lower mould cylinder can be reduced because a plurality of the balls capable of rolling are arranged on the side wall of the copper sleeve; and when relatively serious abrasion is caused by the balls, only the balls need to be replaced, that is, the upper mould cylinder needs not be replaced, so that the maintenance efficiency is improved and the maintenance cost is reduced.

The invention provides a hard sealed butterfly valve. A valve seat is ring-shaped, when the butterfly valve is closed, a disc extrudes and is attached to the valve seat, conditions that one end of the valve seat is clamped with the disc too tightly and the other end of the valve seat is clamped with the disc too loosely definitely occur if the disc cannot be tightly attached to the valve seat, and the valve seat is arranged in first accommodating space in a radially movable manner, so that at the moment, the valve seat on the side clamped too tightly moves far away from the disc in the radial direction and the valve seat on the side clamped too loosely moves close to the disc in the radial direction. The valve seat is enabled to move to the periphery of the disc accurately, so that the ring-shaped valve seat surrounds the circumference of the disc, and airtightness of the whole butterfly valve is guaranteed.

The invention relates to a wear-resisting device of a receiving liner plate of a band conveyor, in particular to a liner plate of a discharging/receiving end of a band conveyor and solving the problem of too rapid wear of the liner plate. The wear-resisting device comprises a bracket arranged on a conveyor stand and a liner plate fixed on the bracket. The wear-resisting device is characterized in that a baffle plate is welded by forming a certain angle with the bracket. The upper part of the bracket is connected with a regulating rod and the lower part is hinged with the conveyor stand. The wear-resisting device can be arranged at the discharging end or receiving end of the band conveyor. When materials fall on the liner plate, part of materials are remained on the baffle plate to ensure that a material layer with certain thickness is formed in front of the liner plate, thus the collision of particular materials to the liner plate is buffered, the wear of the liner plate is reduced, the service life of the liner plate is prolonged, the period of replacing the liner plate is expanded and the factory shutdown losses are reduced.

The invention relates to a heat preservation and exhaust corrugated pipe structure which comprises a heat preservation outer pipe and a corrugated inner pipe, and the two ends of the heat preservation outer pipe are fixedly connected with the two ends of the corrugated inner pipe; the heat preservation outer pipe comprises an outer layer, a middle layer and an inner layer; and the inner layer wraps the outer surface of the corrugated inner pipe, the middle layer wraps the outer surface of the inner layer, the outer layer wraps the outer surface of the middle layer, and the outer layer, the middle layer and the inner layer are relatively fixed. Compared with the prior art, the structure and coating materials of an exhaust corrugated pipe are improved, a stainless steel woven belt at the outer layer provides durable heat preservation and a certain damping effect for the outermost layer, and a flexible basalt needled felt heat preservation layer at the middle layer provides good heat preservation performance and a radial damping effect; a basalt fiber woven belt at the inner layer provides a heat preservation and insulation function and ensures axial tensile elasticity; and the heat preservation effect of the corrugated pipe is improved on the premise that the damping effect is guaranteed, and the inner layer material and the outer layer material have good durability and are not prone to being damaged.

The invention discloses a flexible rotor based on an active magnetic suspension bearing. The flexible rotor comprises an auxiliary supporting mechanism and a magnetic suspension bearing mechanism. Theauxiliary supporting mechanism comprises a positioning ring, clamping rings are arranged on the left side and the right side of the positioning ring, supporting rings are arranged at the ends, away from each other, of the two clamping rings, the two supporting rings are installed through a mounting mechanism, auxiliary bearings are arranged on the inner sides of the two supporting rings, and fixing mechanisms are arranged on the outer sides of the two auxiliary bearings. The magnetic suspension bearing mechanism comprises a connecting ring, and core bodies are distributed on the inner side face of the connecting ring in an array mode. An annular electric wire is wound on the side surface of the core body, and the inner end of the core body is provided with a mounting ring; according to the flexible rotor based on the active magnetic suspension bearing, the auxiliary bearings can be fixed, then coaxiality is achieved, high-precision control over the magnetic suspension bearing is achieved, violent friction between a high-speed rotor and the inner ring of the auxiliary bearings can be avoided, and scrapping of a high-speed magnetic suspension motor caused by heat generated by friction is prevented.

The invention relates to the technical field of refrigeration valves, and discloses a multi-stage sealing refrigeration valve. The multi-stage sealing refrigeration valve comprises a valve body, a valve element base is fixedly installed inside the valve body, and a sealing base is fixedly connected to the upper end of the valve body. Through arrangement of a hollow pipe, a valve element shell and a rubber ring, when the refrigeration valve is not powered on, the valve element shell moves downwards, the rubber ring cannot make close contact with the valve element base in the process, severe friction between the rubber ring and the valve element base when the rubber ring is closed is avoided, the service life of the valve element and the valve element base is prolonged, when the valve element shell moves downwards to coincide with the valve element base, the hollow pipe continues to move downwards, a circular plate presses a wedge-shaped block downwards, the supporting plate can expand towards the outer side till the rubber ring tightly abuts against the inner side wall of the valve element base, meanwhile, air inside the hollow circular pipe can enter an annular cavity, the rubber ring can be expanded, the side face of the rubber ring can be completely attached to the inner side wall of the valve element base everywhere, and the sealing performance of the valve element is guaranteed.

The invention discloses a crane with double electric hoist adjusting mechanisms. Balance auxiliary blocks are connected to the positions of rollers on electric hoist moving vehicles, so that when thegravity center shifts or has a trend of shifting in the advancing direction of a trolley during hoisting work, the gravity center between the double electric hoist moving vehicles can be balanced andcorrected, so that normal use of an electric hoist crane is guaranteed, and the service life of the electric hoist crane is prolonged. An automatic balance adjusting mechanism is arranged, when the gravity center shifts or has the trend of shifting in the direction perpendicular to the advancing direction of the trolley, the automatic balance adjusting mechanism can automatically perform balance adjustment on the gravity center of the electric hoist moving vehicles, then severe friction between trolley wheel rims and the side face of a rail is avoided, safe operation of the electric hoist moving vehicles is guaranteed, so that the safe operation of the working environment is guaranteed, and the working efficiency is improved.

The invention provides an integrally-formed memory foam bra without steel rings and relates to the field of bras. The integrally-formed memory foam bra without steel rings comprises a closed-fit shellfabric, wherein cups are fixedly connected to the two sides of the front side of the closed-fit shell fabric, arc plastic plates are arranged in the cups, a first connection piece is fixedly connected to one side far from the central axis of the closed-fit shell fabric of the front side of each cup, and a first elastic rope is fixedly connected to one side close to the central axis of the closed-fit shell fabric of each first connection piece. The bra is provided with venting holes and through holes, so that external air can enter the back sides of the closed-fit shell fabric and the cups through the venting holes and the through holes when the bra is used; furthermore, breathability of the chest of a user is ensured when the bra is used; by means of arranging antiskid silica gel blocks,the antiskid silica gel blocks can contact the chest of the user, the chest of the user is prevented from directly contacting the cups, gaps are directly formed between the chest of the user and the cups, and the breathability of the bra is further improved.