137results about How to "Change direction of rotation" patented technology

The invention discloses a sterilization and disinfection device for surgical instruments for clinical operations. The sterilization and disinfection device comprises a sterilization and disinfection tank, a sterilization and disinfection cavity, a device cavity, a cleaning tank, a driving motor, a rotating wheel, a wedge-shaped block A, a wedge-shaped block B, an accommodating tank and an ultraviolet sterilization lamp, wherein the sterilization and disinfection tank is arranged on the base; an output shaft of the driving motor is fixedly connected with the rotating wheel frontwards, the wedge-shaped block A is arranged on the rotating wheel, and the wedge-shaped block B is further welded to the outer side of a push block located on the right side; and the heating device and a suction ventilator are arranged on the fixed plate located on the upper side. According to the sterilization and disinfection device, the functions of cleaning, disinfection, sterilization and drying can be simultaneously realized; and compared with a single-direction rotation manner, a clockwise and anticlockwise alternate rotation manner of the cleaning slot has the advantages that the flow speed of disinfection liquid is relatively high, and meanwhile, the rotation direction of the disinfection liquid in the accommodating tank can be changed, so that the relatively good disinfection effect can be achieved.

The invention discloses a star-rotation type rotary device adopting a gate valve structure. The star-rotation type rotary device comprises a cylinder body and a main shaft, wherein a circular-barrel-shaped cavity is formed in the cylinder body; the main shaft is supported by cylinder body sealing end covers at the two sides of the cylinder body; a centre sun gear roller is sleeved on the main shaft; a gate valve groove is formed on the cylinder body along the centre line direction of the cylinder body; a gate valve plate is arranged in the gate valve groove; the gate valve plate is switched between a withdrawing status and an extending status; an annular piston space is formed by an outer cylindrical surface of the centre sun gear roller and an inner cylindrical surface of the cylinder body; a cylindrical planetary piston wheel is arranged in the annular piston space in a rolling manner; when the gate valve plate is in the withdrawing status, the planetary piston wheel passes through the gate valve plate; and when the gate valve plate is in the extending status, the far end of the gate valve plate contacts the outer cylindrical surface of the centre sun gear roller at the inner side surface of the annular piston space. According to the star-rotation type rotary deice adopting the gate valve structure disclosed by the invention, the difficulty of machining the cylinder body can be reduced, and the integral intensity of the cylinder body is improved.

The invention discloses a mechanical hydraulic composite continuously variable transmission of an engineering vehicle with a brake energy recovering function. An input shaft is provided with a mechanical hydraulic linked fixed shaft gear set. A hydraulic variable pump is arranged at one end of the driven shaft of the gear set. Two ends of the hydraulic variable pump are connected with two ends of a hydraulic motor to form a hydraulic loop. Two ends of the hydraulic variable pump are connected with a first overflowing valve, a second overflowing valve, a first reversing valve and a second reversing valve. An energy accumulator is arranged between the first reversing valve and the second reversing valve. One end of a first one-way valve and a second one-way valve is connected with an oil tank while the other end of the first one-way valve and the second one-way valve is connected with the hydraulic loop of the hydraulic variable pump and the hydraulic motor. An output shaft of the hydraulic motor is provided with a first auxiliary fixed shaft gear set and a second auxiliary fixed shaft gear set. The first auxiliary fixed shaft gear set is connected with a first planet row and a second planet row on the input shaft. The second auxiliary fixed shaft gear set is connected with a third planet row on the input shaft. The output shaft of the hydraulic motor is further provided with a brake. The mechanical hydraulic composite continuously variable transmission integrates high efficiency characteristics of hydraulic transmission stepless speed regulation and mechanical transmission, and can also recover energy and save energy.

The invention discloses a construction level easy to adjust. The construction level comprises a support platform, and three brackets are hinged to the lower surface of the support platform; a rotatingdisk is arranged above the support platform, and the rotating disk is connected to the support platform through a rotating mechanism; a level is arranged above the rotating disk, and a support rod ishinged to the lower surface of the level; the other end of the support rod is fixedly connected to the upper surface of the rotating disk, and the upper surface of the rotating disk is provided witha T-type sliding chute of which the interior is slidably connected to a T-type sliding block matched with the T-type sliding chute; the interior of the T-type sliding chute is rotatably connected to athreaded rod which penetrates the T-type sliding block and extends to the outer side of the T-type sliding chute, and the threaded rod is in threaded connection with the T-type sliding block; and thethreaded rod is rotatably connected to the side wall of the T-type sliding chute, and a connecting rod is hinged to the lower surface, far away from the support rod, of the level. The construction level is easy to operate, so that the horizontal angle of the construction level can be adjusted according to the requirements; and the stability during adjustment of the rotating angle is improved.

The invention relates to a multi-functional built-in dynamic-static-pressure motorized spindle for an efficient high-speed precision machine. The multi-functional built-in moving piezo spindle comprises a shell, a spindle body, a bearing, an oil sealing cover, a motor rotor and a stator. A front bearing is arranged at the right end of the shell and forms a static-pressure push bearing with the spindle. The inner surface of the front bearing is provided with a static-pressure oil cavity, and part of the large diameter of the inner surface matches with a pre-tightening piston. A rear bearing is mounted in a rear-bearing seat. The motor rotor is arranged between the front bearing and the rear bearing. The outer cylindrical face of the motor stator matches with a water sleeve tightly. The water sleeve matches with a hole in the middle of the shell and is connected to the shell. The rear bearing is sealed through a gas sealing ring, and the front bearing is sealed through the oil sealing cover and a gas sealing hole at the rear end. Heat shielding devices are arranged at two ends of the motor stator. The spindle can be mounted at different positions according to different using conditions. The multi-functional built-in dynamic-static-pressure motorized spindle can serve as a spindle of a grinding wheel of a precision machine, a milling center or a grinding machine or a spindle of a workpiece, and has the advantages of high precision, high rigidity, long service life, fine producing process, good sealing effect and the like.

The invention relates to a coriolis acceleration test device which comprises a main frame, a fixed support column on the main frame, a rotary node on the fixed support column, an elevating rod, a light flexible rod and a large-mass sliding block sleeved on the light flexible rod, wherein the elevating rod is arranged in the fixed support column and is capable of moving vertically under the driving of an adjustable motor, and the included angle of the light flexible rod can be adjusted on the rotary node; the fixed support column is provided with an electrical primer, a limit switch, the adjustable motor and a driving mechanism, wherein the adjustable motor can drive the rotary node to rotate around a rotation shaft z, an angle sensor and a linear displacement sensor are arranged on the rotary node, one end of the light flexible rod is provided with a two-sided strain gauge, and the electrical primer is connected with a signal processor and a calculation device. The invention is helpful for students to vividly, directly and concretely understand and grasp the concept of coriolis acceleration and has high and simple measurement accuracy, dynamic and stable performance; measurement results can be conveniently transmitted to a computer for calculation and analysis so as to conclude required data and diagrams, and thus, the invention enables tests to be diversified and interesting.

The invention relates to a molded case circuit breaker operating mechanism buckle carrying device. A stroke of the reset process of a jumping buckle is utilized for pressing a locking buckle to move, the locking buckle is driven to rotate towards the direction of the jumping buckle, and the locking buckle is separated from a draw bar; after the process of buckling carrying is finished, the jumping buckle resets upwards through pulling force of a main tension spring, the locking buckle and the jumping buckle are tightly locked together, the locking buckle is resisted by the draw bar and cannot rotate, therefore, the jumping buckle is locked and cannot continue to turn over upwards, the freedom degree of the jumping buckle is locked, a five-connecting-rod mechanism is changed into a four-connecting-rod mechanism, and the divide-shut brake function of the mechanism is restored. A design method of a traditional mechanism is overturned by ingeniously utilizing the change of rotation direction of the locking buckle and the draw bar, and an original opening contact method at a position where buckle sliding happens easily is changed into a tightly attaching method. The buckle carrying function of the mechanism is optimized, the technical processes are simplified, and reliable assembling is achieved through simple parts.

The invention relates to a method for detaching a charge (5) which is stuck to the inner wall of a grinding pipe (1), wherein the drive device (2) of the grinding pipe (1) is controlled by a control device (3) for targeted removal of the charge (5) that is stuck. The grinding pipe (1) is rotated in a targeted manner such that the charge (5) that is stuck is removed from the inner wall of the grinding pipe (1) as a result of multiple modification of the rotational speed of the grinding pipe (1) and, optionally, as a result of abrupt braking of the grinding pipe (1). Generally speaking, the material-dependent maximum angle of rotation F of the grinding pipe is not exceeded in order to avoid the charge that is stuck from falling in an uncontrolled manner. The invention supercedes labour-intensive and protracted methods for detaching such charges (5) since the tasks can be carried out by the same motor of the drive device (2) which is used to drive the grinding pipe (1) during the grinding process.

The invention discloses an electric tapping knife and a rotary-cut cutter head thereof. The rotary-cut cutter head comprises a knife handle which is provided with a knife handle connection end and a knife handle mounting end, and a knife body which is arranged on the knife handle mounting end; the knife body is provided with a knife edge, the knife edge comprises first knife edges, second knife edges and third knife edges which are connected in sequence, and the first knife edges are located on the sides, close to the knife handle, of the third knife edges; the first knife edges extend from the ends close to the axis of the knife handle to the ends away from the axis of the knife handle; the second knife edges are in an arc shape and protrude in the direction away from the knife handle connection end; the third knife edges extend from the ends close to the second knife edges to the ends away from the second knife edges and incline toward the axis of the knife handle. The rotary-cut cutter head of the electric tapping knife can not only achieve push cutting and pull cutting, but also achieve upward tapping and downward tapping, and effectively improves the operational performance of the electric tapping knife; meanwhile, in tapping, not only is the tapping depth guaranteed, but also it is guaranteed that the cambium of a rubber tree is not harmed, and it is convenient to achieve the standard requirements of tapping.

The invention discloses a cell morphology reconstruction oriented three-dimensional image information acquisition method and device. An objective table is fixedly connected with four vertically arranged micro telescopic rods; screws at the upper ends of the micro telescopic rods are fixedly connected to four corners of a glass slide rack in sequence; motors in the micro telescopic rods are connected with a motor control module by virtue of control lines; the motor control module is connected with an upper computer by virtue of an MCU (Micro Control Unit) system 23; a camera is positioned justabove the motor control module; an optical collector is arranged outside the camera in a sleeving manner and is composed of a halogen lamp, an organic panel, the micro telescopic rods and micro telescopic rod fixing bases; the motors in the micro telescopic rods are connected with the motor control module by virtue of control lines; and the motor control module is connected with an upper computerby virtue of the MCU system. The inclination of the cell slide is changed by regulating the heights of two adjacent micro telescopic rods on the objective table, the small-angle rotation of the slideand rotation surface direction change of the slide are realized, and irrelevant three-dimensional morphology information is acquired, so that the morphology reconstruction accuracy is improved.

The invention discloses a device for performing ultraviolet disinfection and detection on liquids and an application method thereof. The device is capable of killing aflatoxin, germs and viruses by utilizing ultraviolet rays; non-toxic harmless quartz glass is adopted to manufacture containers which do not contain plasticizers; by virtue of the device, the contents of the aflatoxin, the germs and the viruses can be detected at the same time; the device is simple in structure, the defection method is convenient and easy to learn, and the device is suitable for families, offices and factories to perform the quality detection on edible oil and potable water; influences on a human body, caused by directly drinking the potable water or eating the edible oil, is avoided, filter elements need not to be replaced, the filtration efficiency and the disinfection efficiency are high, and the device is provided with a liquid virus detecting unit. Special testing, detecting and analyzing instruments are purchased by large edible oil processing enterprises so as to detect the content of the aflatoxin in the edible oil and the germs and viruses in the potable water, but small enterprises, families and offices can not purchase the special detecting instruments or have no conditions to purchase the special detecting instruments; by virtue of the device disclosed by the invention, the disinfection effect and quality can be detected by consumers at any time.

The invention discloses a glass deep processing jacking mechanism. The glass deep processing jacking mechanism comprises a conveying device and a jacking device, wherein the conveying device is provided with the jacking device capable of vertically moving; the conveying device comprises a first rack, a first driving assembly, driving assemblies and driven assemblies, the first driving assembly isdriven, and the driving assemblies rotate to drive the driven assemblies to rotate; and the jacking device comprises a second rack, a second driving assembly, supporting frames and supporting rods, the second driving assembly is driven, and the supporting rods are driven by the supporting frames to vertically move in gaps between the driven assemblies. The glass deep processing jacking mechanism has the advantages that under the condition that the conveying device does not stop running, the jacking mechanism prevents the stacking phenomenon on the conveying device when the manipulators grab and stack glass, and an existing mode of stopping conveying of the conveying device for preventing glass stacking does not need to be adopted, so that the glass stacking efficiency is greatly improved,and then the glass production efficiency is improved.

The invention relates to the field of hard material grinding equipment, in particular to a planetary gear train type grinding machine capable of realizing direction-changing speed adjustment. The planetary gear train type grinding machine comprises a stand and a planetary gear train mechanism, a grinding mechanism and a direction-changing driving mechanism which are arranged on the stand, wherein the planetary gear train mechanism comprises a working table; an inner gear ring, a sun wheel rotating shaft, a first sun wheel, a second sun wheel and multiple planetary wheels are arranged on the working table; the grinding mechanism comprises a rotating shaft; a rotating platform is arranged on the rotating shaft; a grinding wheel is arranged on the rotating platform; the direction-changing driving mechanism comprises a wheel carrier and a driving wheel, a first idle wheel and a second idle wheel which are arranged on the wheel carrier in a rotatable manner; and a handle for connecting the first idle wheel or the second idle wheel to the second sun wheel in a transmission manner by rotating the wheel carrier. The planetary gear train type grinding machine can effectively overcome the shortcomings that the main shaft of the conventional grinding machine is high in speed, the grinding amount is difficult to control, grinding is not uniform, and operation is difficult; and furthermore, the planetary gear train type grinding machine further has the characteristics of simple structure, relatively low manufacturing cost, easiness for maintenance, convenience for operation and the like.

The invention discloses a compound digital servo actuator using a rotary oil distributing valve. A gear stepper device comprises at least three hydraulic cylinders, an outer engagement gear fixed in a center shaft position, and an inner engagement gear capable of performing a plane motion; a small gear center shaft is an output shaft of the gear stepper device; the hydraulic cylinders are uniformly distributed on the outer side of the inner engagement gear, are bonded with the outer side of the inner engagement gear, and push the inner engagement gear to perform the plane motion; and a controllable oil distributing device distributes oil to the hydraulic cylinders according to action demands of the hydraulic cylinders. The compound digital servo actuator adopts hydraulic oil as a power source, adopts the rotary oil distributing valve to realize distribution of the hydraulic oil, and uses plungers of the hydraulic cylinders for driving the engagement gears to finally realize the stepper output. Compared with servo motor output, the compound digital servo actuator obviously increases the torque, and reduces the size; and compared with common hydraulic output, the compound digital servo actuator can realize accurate stepper output.

The invention relates to a stirring device of a livestock manure full-mixing type fermentation tank. The stirring device comprises a fermentation tank, a stirrer and a hydraulic motor component, wherein the fermentation tank is used for accommodating a livestock manure mixed medium; the stirrer is positioned in the fermentation tank; and the hydraulic motor component serving as a power source directly drives the stirrer to rotate. The stirring device has a compact structure, is convenient to install and operate, safe, reliable and high in corrosion resistance, and hardly triggers safety accidents such as a fire hazard, explosion, methane leakage and the like.

The invention provides a biconical tooth differential deceleration system control method for a washing machine and relates to a deceleration system control method. An input shaft part I, an input shaft part II, a planet bracket part and a biconical tooth part are included. In the operating process of the deceleration system, the rotate speed of a transmission shaft of the planet bracket is relatedto difference between the rotate speeds of two electric motors, so that the system has the advantages of great transmission ratio and large output rotating torque. The two electric motors can be still in high-speed operating states. In a state that the rotating directions of the two electric motors are not changed, the rotating direction of the transmission shaft of the planet bracket of the deceleration system can be changed, so that the electric motors can operate in a working state with relatively high efficiency. In the operating process of the deceleration system, when a stepless speed change mode is adopted, the deceleration system has the ability of controlling the output rotate speed and the output rotating torque, separately. When a step speed change mode is adopted, the basic configuration conditions of a ripple washing machine and a roller washing machine can be met on the premise of lowering the cost.

The invention relates to a driving device for changing a fan rotating direction and a control method. An engine transmission wheel is connected with a fan driving wheel through a fan rotating direction change device; the fan rotating direction change direction includes a first driving wheel, a second driving wheel and a driven wheel; the fan driving wheel is connected with the driven wheel through a connecting piece; the fan driving wheel is connected with the first driving wheel through a first clutch; the first driving wheel and the second driving wheel are connected with the engine transmission wheel through connecting pieces; and the driven wheel is connected with the second driving wheel through a second clutch. The driving device for changing the fan rotating direction is simple in structure, convenient to control and low in production cost, changes the fan rotating direction through changing the working states of two clutches to realize the effect of changing the air flowing direction, achieves the purposes of engine heat dissipation and self-cleaning, reduces engine faults, and prolongs the engine life.

The invention discloses a limestone powder calcining furnace which comprises a furnace body, wherein the left side and the middle of the upper surface of the furnace body are connected with a feedinghopper and a motor B respectively; a motor A is arranged below the furnace body; output shafts of the motor A and the motor B are respectively connected with a stirring shaft A and a stirring shaft B;stirring blades are connected to the stirring shaft A and the stirring shaft B; high-temperature belts are connected to the middle of the inner side wall of the furnace body; the upper and lower parts of the inner side wall of the furnace body are connected with guide plates; the lower surfaces of the guide plates and the high-temperature belts are connected with material blowing devices; the lower surfaces of the stirring blades are connected with poking devices; the outer side of the stirring shaft A is connected with a discharge tower through a bearing; the outer side of the lower part ofthe furnace body is sleeved by a cooling sleeve; the lower part of the right side of the cooling sleeve is connected with a liquid inlet pipe; the upper part of the left side of the cooling sleeve isconnected with the inlet end of a steam drum through a liquid outlet pipe; the outlet end of the steam drum is connected with the stirring shaft A through a steam pipe; and the left side and the rightside of the lower surface of the furnace body are connected with discharge tubes. The limestone powder calcining furnace has the advantages of thorough calcination, wall adhesion prevention, high discharge efficiency, energy conservation and environment protection.

The invention discloses a micro-acoustic flow driven rotary nano-motor and a working method thereof. The nano-motor comprises a guiding structure, a nano-rotor, a piezoelectric transducer, a driving substrate and a liquid medium, wherein the piezoelectric transducer excites the driving substrate to perform ultrasonic vibration, and in a certain vibration mode, the liquid medium is caused to generate local flow in the vicinity of the guiding structure, and the nano-rotor is attracted to the vicinity of the guiding structure under the action of local strong convection and rotates circumferentially. According to the scheme of the invention, the flow of liquid is caused by ultrasonic vibration, a local flow field is generated in the vicinity of a specific guiding structure, tiny rotors nearbycan be captured, and a rotational motion is generated under the action of the acoustic flow. The nano-motor with the actuation mode adopts acoustic vibration as a power source of the motor, does not require chemical fuels, and also has no special requirements for materials of the rotor, and thus the nano-motor has good biocompatibility.

The invention discloses a rotary cleaning device for production of a roller shaft seat and a one-way wheel of a fax machine. The rotary cleaning device comprises supporting legs, wherein a support table is fixedly connected to the top of the supporting legs; a first support rod is fixedly connected to the lower surface of the support table; a first motor is fixedly connected to the middle of the first support rod; an output shaft of the first motor is fixedly connected with a first rotating shaft through a coupling; and a driving wheel is fixedly connected to the surface of the first rotatingshaft. According to the rotary cleaning device for production of the roller shaft seat and the one-way wheel of the fax machine, the effect of cleaning the surfaces of the roller shaft seat and the one-way wheel is achieved; a second rotating shaft and a third rotating shaft rotate to drive cleaning brushes to scrub and clean the surfaces of the roller shaft seat and the one-way wheel; meanwhile,as the outer surface of a driven gear meshes with that of a driving gear, the rotating direction of the third rotating shaft can be changed, swirling is prevented, and accordingly, the problem that acommon roller shaft seat and one-way wheel cleaning device has high probability of causing retention of oil dirt and impurities is effectively solved.

The DC exciting magnetic motor has rotor on the rotating shaft and with several sets of rotor magnetic poles in the same polarity, and stator connected to the seat and with several sets of stator magnetic poles in the same polarity. At least one kind of the stator magnetic poles and the rotor magnetic poles is exciting magnetic poles operating under the control of the control mechanism comprising electric brush, metal slip ring, synchronous switching metal piece. The central line of the rotor magnetic pole cross section and that of the stator magnetic pole cross section are in an angle of 0-45 deg, and in any time,, only one set of exciting magnetic poles inside the angle excites. The pair number of the stator magnetic poles is greater than that of the rotor magnetic poles, and the motor may change its rotation direction via altering the polarity of the power supply. The present invention has no commutator, simple structure, high efficiency, great torque and other features.

A non-contact large-clearance magnetically driving method comprises an active magnetic pole and a driven magnetic pole. The active magnetic pole is a U-shaped iron core with fixed position. Each pole of the U-shaped iron core is respectively provided with two coils with electric power conducting controlled by a sequential circuit. The coils are controlled to switching and switching-off according to the prescribed sequence to lead to that the state of magnetic field of two magnetic poles is switched circulatingly according to the prescribed sequence to generate a magnetic field coupling with the driven magnetic poles (permanent magnets) which are arranged at the upper part of the U-shaped iron core of the active magnetic pole to drive the driven magnet (permanent magnet) to rotate. The invention has the advantages of simple technique, reasonable structure, fixed position of the active magnetic pole, large effective clearance between the active magnetic pole and the driven magnetic pole, adjustable rotating speed and direction, being able to replace the mechanical transmission and good practicability. The method of the invention can be applied to industrial practice and is especially suitable for driving the intracardiac miniature blood pump. The method of the invention settles the insufficiency for providing energy driving power to the intracorporal blood pump driving system currently.

The invention discloses an automobile all-directional parking auxiliary device which comprises a rack and a rotating mechanism, an advancing mechanism and a damping mechanism which are installed on the rack; the rack comprises a transverse fixing frame connected with an automobile chassis and a longitudinal support which is arranged below the fixing frame and is of a hollow structure, the longitudinal support is located at the inner side of a tire, a spindle is installed in the center of the tire, the advancing mechanism comprises a driving motor installed on the transverse fixing frame, a first advancing belt pulley installed inside the transverse fixing frame and a transmission shaft installed inside the longitudinal support and located above the main shaft, and the rotating mechanism comprises a rotating belt pulley fixedly installed on a roof of the longitudinal support and a rotating motor driving the rotating belt pulley to rotate. By arranging the rotating mechanism and the advancing mechanism, an automobile achieves running in different directions and moving in all 360-degree directions, meanwhile, steering and advancing of tires can be completed within the limited space, the device can adapt to complex the terrain environment, and the parking process becomes more efficient, safe and simple.

The invention relates to a multipurpose acarus removing dust collector, which comprises a dust collector main body, wherein an annular groove is formed in the upper surface of the dust collector mainbody; a rotary rod, which is matched with the annular groove, is arranged in the annular groove, and the rotary rod is rotatably connected to groove bottom of the annular groove via a bearing; two clamping grooves, which are symmetrical around the position of the rotary rod, are formed in the inner sidewall of the annular groove; springs are fixedly connected to the groove bottoms of the clampinggrooves; clamping blocks, which are matched with the clamping grooves, are fixedly connected to the ends, away from the groove bottoms of the clamping grooves, of the springs, and the clamping blocksare slidingly connected to the clamping grooves; the ends, away from the springs, of the clamping blocks penetrate notches of the clamping grooves and arc-shaped limiting blocks are fixedly connectedto the ends; a plurality of arc-shaped grooves, which are uniformly distributed, are formed in the outer sidewall of the rotary rod, and the arc-shaped grooves are matched with the arc-shaped limitingblocks; and the ends, away from the clamping blocks, of the arc-shaped limiting blocks are clamped with the corresponding arc-shaped grooves. The acarus removing dust collector provided by the invention can be adjusted in accordance with users' demands, so as to meet people's requirements and facilitate the people in use.

The invention discloses a step-by-step vane motor applicable to low speed and heavy duty. A groove for a vane to embed is formed in an annular outer ring; one end of the vane is connected to the bottom part of the groove through a spring; the other end of the vane always presses against the outer edge of an inner gear through a spring action; the annular outer ring, the vane and the inner gear form multiple sealed oil cavities in a surrounding way. High-pressure oil and returned oil are introduced through an oil port in a right end cover and are led to the sealed oil cavities through an oil distribution plate and a sealed plate; the oil distribution plate is driven by a stepping motor so as to rotate, so that the high-pressure oil and the returned oil are distributed to the various sealedoil cavities; the high-pressure oil pushes the free inner gear to move so as to mesh with an outer gear fixed axially; and along with the distribution of the high-pressure oil and the returned oil, the outer gear meshes with the inner gear at different places, so that the outer gear further produces rotation, and the movement can be output through a key groove and other manners. The step-by-step vane motor applicable to low speed and heavy duty provided by the invention has the advantages of high movement accuracy, applicability to heavy-load occasions, and can be used for fine control in thefields such as robots.

The invention discloses an arc cylinder pendulum type internal combustion engine. The arc cylinder pendulum type internal combustion engine comprises an air cylinder (1) as well as pistons (2) and air valves (9) in the air cylinder (1), wherein the air cylinder (1) is annular; the pistons (2) are mounted at the two ends of each of arc-shaped connecting rods (3); the middle part of each of the arc-shaped connecting rods (3) is connected with a pendulum rod (4); the pendulum suspension point of the pendulum rod (4) is positioned in the center of the air cylinder (1); the pendulum rod (4) is connected with a crankshaft (6) through a connecting rod (5); working cavities are defined on the air cylinder (1) by the two adjacent pistons (2) respectively arranged on the different arc-shaped connecting rods (3); and the air valves (9) are arranged in the middle of the working cavities. A pendulum type structure is specially designed, so that the wall of the air cylinder is not additionally extruded by the pistons when power is transmitted to the crankshaft through the connecting rod due to the limitation of the pendulum rod, thereby solving the problem of an offset cylinder of the existing reciprocating internal combustion engine, noise and power consumption are reduced, power is increased, and the energy resources are saved.

The invention relates to a method in reeling of fiber webs and a reel-up (10), in which method the web is reeled by a reeling cylinder (15) of a reel-up into a parent roll (12, 14) around a reeling shaft (11) by means of a reeling nip formed between the reeling cylinder and the parent roll (14) to be wound around the reeling shaft. In the method the reeling draw is chosen between at least two alternatives of threading routes around the reeling cylinder (15) according to the need of rotational direction of further processing of the parent roll (12, 14) to be reeled such that the web is directed to one of at least two threading routes. The invention also relates to a reel-up for reeling of fiber webs, which reel-up (10) comprises a reeling cylinder (15), a reeling nip formed between the reeling cylinder and parent roll (14) to be wound around a reeling shaft (11), a roll (16) preceding the reeling cylinder (15). In the reel-up the reeling cylinder and the roll (16) preceding the reeling cylinder comprise means for changing their direction of rotation and that the reel-up further comprises at least two draws, one upper draw and one lower draw, for directing the fiber web in the reel-up.

The invention relates to a method for removing adhered charge (5) from the inner wall of a grinding tube (1), wherein the targeted removal of adhered charge (5) is controlled by a control device (3) Control the drive device (2) of the grinding tube (1). The grinding tube (1) is rotated in such a targeted manner that the adhered charge (5) is removed from the grinding tube (5) by changing the rotational speed of the grinding tube (1) several times and, if necessary, by sudden braking of the grinding tube (1). The inner wall of the grinding tube (1) is peeled off. The maximum rotation angle (φ) of the grinding tube (1), which is generally determined by the material, is not exceeded in order to avoid an uncontrolled fall of the stuck charge (5). The invention eliminates the need for labor-intensive and time-consuming methods to remove stuck charges (5), since these can be removed by the drive (2) using the same electric motor that also drives the grinding tube (1) during the grinding operation. .