45results about How to "Realize two-way rotation" patented technology

The invention discloses a cosine curve mechanical seal end surface structure. The structure comprises a movable ring and a static ring of a mechanical seal; the outer ends of the sealing end surfaces of the movable ring and the static ring serve as high-pressure sides, namely upstream, and the inner ends of the sealing end surfaces serve as low-pressure sides, namely downstream; smooth and continuous annular sealing dams are arranged on the low-pressure sides of the sealing end surfaces; multiple periodically distributed curve grooves are formed in the high-pressure sides of the sealing end surfaces; openings at one ends of the curve grooves extend to the upstream of the sealing end surfaces, and the other ends of the curve grooves are positioned at the upstream of the annular dams; micro grooves are symmetrically formed in two sides of each curve groove; and the sealing end surfaces are provided with sealing weirs in non-grooving areas between the curve grooves at the upstream of the annular dams. The cosine curve mechanical seal end surface structure has the following beneficial effects: the structure is obvious in reflux effect, low in leakage rate, capable of being applied to various mediums, high in solid particle preventing capacity, excellent in static / dynamic pressure effect and capable of frequently starting and rotating in two directions.

The invention provides an anilox roller transmission mechanism of a printing machine. A transmission shaft of the anilox roller transmission mechanism rotates in two ways and is connected with a first gear assembly and a second gear assembly. The axial positions of the transmission shaft and the first gear assembly are kept unchanged. First tooth parts of the first gear assembly are in transmission fit with a first input gear. A first transmission device is in transmission with the first input gear. The second gear assembly comprises third tooth parts and fourth tooth parts. The second gear assembly moves in the axial direction relative to the transmission shaft. The second gear assembly and the transmission shaft synchronously rotate. A second transmission device is in transmission connection with a second input gear. The second gear assembly moves in the axial direction. Three-station switching is achieved when the fourth tooth parts are engaged with the second input gear, when the third tooth parts are engaged with the second tooth parts and when the fourth tooth parts are not engaged with the second input gear and the third tooth parts are not engaged with the second tooth parts. During printing, an anilox roller rotates forwards or backwards through transmission of the first transmission device, two-way rotation is achieved, and printing of the front face or the back face of a printed material is satisfied through printing ink transfer. When printing is not conducted, the anilox roller rotates through transmission of the second transmission device so as to conduct ink distribution. Printing ink transfer and ink distribution do not influence each other.

The invention provides a double direction constant flow gear pump, which relates to the technical field of double direction rotation of hydraulic pump. The gear pump mainly comprises a double direction constant flow control device, a general oil pump inlet (I), a general oil pump outlet (P), an oil pump inlet (I'), an oil pump outlet (P'), a normative hydraulic pump oil port (A) and a normative hydraulic pump oil port (B). The double direction constant flow control device comprises a one-way valve (1), a one-way valve (2), a hydraulic control one-way valve (3), a hydraulic control one-way valve (4), a slide valve (5), a flow control orifice (6), a pressure control orifice (7), a cone valve (8), a hydraulic control piston (9) and a hydraulic control piston (10). The invention has the advantages that: when the gear pump rotates in two direction, the constant flow gear pump can keep the position of the oil inlet and oil outlet unchanged, at the same time, maintain constant output flow and realize safe restriction for the output pressure.

A bidirectional spiral drill bit disclosed by the invention comprises a top cover, an outer barrel-shaped drill bit body and an inner barrel-shaped drill bit body; the inner barrel-shaped drill bit body is arranged in the outer barrel-shaped drill bit body, a side scraper is arranged on the side wall of an inner drill bit pipe body, and the bottom of a rotating shaft connecting block is fixedly connected with the top of the inner drill bit pipe body through a second fixing screw. According to the bidirectional spiral drill bit, a side scraper is arranged on the outer wall of the inner barrel-shaped drill bit body; the side scraper is in contact with the inner wall of the outer drill bit pipe body; during rotation, the side scraper effectively scrapes off soil on the inner wall of the outerbarrel-shaped drill bit body; the problem that rotation is affected due to too much soil between the outer barrel-shaped drill bit body and the inner barrel-shaped drill bit body, and the abrasion problem are solved; the service life of the outer barrel-shaped drill bit body and the inner barrel-shaped drill bit body is greatly prolonged, the outer barrel-shaped drill bit body and the inner barrel-shaped drill bit body are opposite in rotation direction, bidirectional rotation is achieved, the excavation effect is better, the soil smashing effect is better, the bidirectional spiral drill bitis not prone to being adhered to soil, and therefore cleanliness of the bidirectional spiral drill bit is kept.

The invention belongs to the technical fields of environmental-protection and energy-saving mechanical devices, and especially relates to a high-efficiency and energy-saving mixing device. The high-efficiency and energy-saving mixing device comprises a stirring tank, a supporting rack, a motor storage box, sound insulating sponge, a motor pedestal, a switch, a motor, an emergency stop button, a sealing bearing, a motor shaft, a sun gear, a planetary gear, a tooth profile, stirring vanes, spoilers, a sealing cover and a sealing ring, the motor storage box is arranged at the bottom of the device, the motor is arranged in the motor storage box, the motor is fixed on the motor pedestal, and the switch and the emergency stop button are arranged at the right side of the motor storage box in parallel. The device has the advantages of reasonable structure, high pertinence, realization of bidirectional rotation of the stirring vanes and the spoilers under the driving of the same motor by using the gears transmission, increase of the stirring efficiency, saving of resources, wide application prospect, and suitableness for promotion and application.

The invention discloses a bidirectional rotating type water turbine for a cooling tower. The bidirectional rotating type water turbine comprises a volute, a water wheel arranged in the volute and a speed reducer connected to the water wheel. The speed reducer comprises an input shaft and an output shaft, wherein the input shaft is connected with the water wheel and provided with an input gear, and the output shaft is connected with the gear of the input shaft and provided with an output gear. A gear frame is arranged between the input shaft and the output shaft and is provided with two sets of parallel transmission gear sets. A gear frame lifting device is arranged at the top end of the gear frame, one transmission gear set comprises a first transmission gear, and the other transmission gear set comprises a second transmission gear and a third transmission gear which are engaged. The bidirectional rotating type water turbine for the cooling tower is simple in structure, changes of the rotating direction of the output shaft of the water turbine are achieved through odd-number changes and even-number changes of the transmission gears, and therefore the purposes of water energy recycling and back flushing deicing of the cooling tower are achieved.

The invention relates to a dynamic balance measuring machine, which comprises a stand. A gear box is arranged at the stand, an input shaft and an output shaft are arranged in the gear box, the output shaft is connected with a main shaft of an electric jigger through a clutch, and a main shaft of the electric jigger is driven by an electric motor to rotate forwards and reversely; and a speed change mechanism is arranged between the input shaft and the output shaft in the gear box, and the speed change mechanism comprises a speed change gear and a gear selecting device which are engaged with each other. The invention mainly provides the dynamic balance measuring machine in which the gear box has wide working range and comparatively high raising speed, can bear positive and negative torque, carries out bidirectional measurement and control, and is applied to large-vibration environment; and the dynamic balance measuring machine solves the technical problems that the dynamic balance measuring machine has limited application range, can only bear unidirectional torque and carries out unidirectional measurement and control in the prior art.

The invention relates to a reversible rotary electromagnet device. The reversible rotary electromagnet device comprises a bidirectional electromagnet and a reversing mechanism, wherein the reversing mechanism comprises a connection rod for transmitting output torsion of the bidirectional electromagnet, an output shaft connected with the connection rod, and a keeping electromagnet for realizing a switching position; the keeping electromagnet is used for drawing the connection rod after being electrified so that the connection rod is separated from the output shaft to realize angle switching of the output shaft. With the adoption of the reversible rotary electromagnet device, the steering of the output shaft in two positions can be realized.

The invention provides a bilateral rotation door and window with an embedded invisible hinge and aims to solve the technical problems in the conventional doors and windows that the door and window hinges are completely exposed so that the overall appearance of doors and windows is affected, and the conventional doors and windows are only opened along one direction, particularly, the glass windows of high-rise buildings occupy space when opened inwards and bring great risk and inconvenience to cleaning work when opened outwards; the conventional door and window sealants are only applied to doors and windows which are only opened along one direction, and the sealing effect is not ideal; and the locks of doors and windows are required to be additionally designed. The door and window body is formed by movably connecting rotary embedded invisible hinges and a mounting body; the two adjacent end surfaces of a fixing beam and a moving beam of the hinges, the free end of the door and window body which is integrated with the moving beam, and the corresponding frames of the mounting body are provided with corresponding concentric arc surfaces, and the double-arc sealants are used for sealing each two arc surfaces; and an embedded locking-type arc sealing is applied to the frames of the door and window body and the corresponding frames of the mounting body, which arranged on both sides of the hinges. The hinge has a reasonable structure and is convenient to install; by using the hinges, not only the overall appearance of doors and windows is kept and the doors and windows are opened along one direction or two directions, but also the bearing capacity is high, so that the hinge is applied to various doors and windows.

The invention particularly discloses a device applied to locking and opening a well lid lock and stably keeping. The device comprises a lock shell, wherein the lock shell is provided with a main shaft and a bidirectional corner electromagnet, wherein the bidirectional corner electromagnet drives an electromagnet shaft in the bidirectional corner electromagnet to rotate; the lower end of the electromagnet shaft is connected with a connection cover; the connection cover is connected with a chuck connection rod; the chuck connection rod is provided with a top block; the lock shell is provided with a positioning pin for positioning a rotary position of the chuck connection rod; the top end of the main shaft is matched with a rotary table and the bottom end of the main shaft is matched with a chuck; a notch is formed in the outer edge of the chuck; the notch is matched with the chuck connection rod; an annular opening is formed in the inner side of the chuck; the annular opening is matched with a limiting pin fixed on the lock shell. The device disclosed by the invention is simple in structure and the aim of unlocking or locking the well lid lock is realized through the corner electromagnet; the two states can be stably kept due to the characteristics of the corner electromagnet.

The invention provides an electronic device and a method for using it. The electronic device has the functions of retractable and bidirectional rotation, and includes a back shell, a lens module, a support member, a push block, a screw rod, a driving mechanism, a first transmission assembly, a second transmission assembly Components and limit mechanism, the support piece is connected with the lens module in rotation, the side of the support piece away from the lens module extends with a support portion, the push block can move along the axial direction of the screw rod, and is threadedly matched with the screw rod, and the driving mechanism Located on the back shell and connected to one end of the screw rod, the first transmission assembly includes a first elastic member and a second elastic member, the first elastic member is compressed between the support member and the push block, and the second elastic member is compressed on the push block Between the supporting part and the supporting part, the second transmission assembly is used to drive the lens module to rotate forward or reversely. The limit mechanism includes a magnetic part, an electromagnet and a buckle. One of the magnetic parts and the electromagnet is arranged on the buckle part, and the other is arranged on the back shell or the stop part.

The invention discloses a swing type bidirectional positioning clutch which comprises a box body and a reduction gear component which is assembled on the box body, wherein a section of arc chute is arranged on the box body; a rocker panel is rotationally arranged at the inner side of the box body; a clutch gear component is arranged on one side face of the rocker panel; a clamping pin is arranged on the other side face of the rocker panel; a rocking bar is rotationally arranged at the outer side of the box body; a bidirectional limiting cam plate is fixedly connected to the rocking bar, wherein the two ends of the rocking bar are provided with clamping grooves; one end of a first positioning pin is fixed on the bidirectional limiting cam plate; the other end of the first positioning pin is clamped in the chute; a positioning spring is arranged between the first positioning pin and a second positioning pin; a reset part is arranged between the rocker panel and the box body; and the clamping pin penetrates through the chute and is pressed against a cam surface of the bidirectional limiting cam plate. The bidirectional positioning clutch has the advantages of simple structure, small size, convenient assembly, flexible operation and low production cost.

The invention provides an electronic device and a method of use. The electronic device includes a back shell, a lens module, a support, a push block, a screw, a driving mechanism, a first transmission component, a second transmission component for driving the rotation of the lens module, The magnetic part and the electromagnet, the support part and the lens module are connected in rotation, the push block is sleeved on the screw rod and can move along the axial direction of the screw rod, the push block is threadedly matched with the screw rod, the driving mechanism is installed on the back shell, and is connected with the screw rod Rod connection, the first transmission assembly includes a first guide rod, a first elastic member, a second elastic member and a bushing assembly, the bushing assembly includes a bushing body, a bushing seat and a bushing cover, one end of the first guiding rod is connected to the support The first guide rod is slidably connected with the push block through the bush assembly, the first elastic part is compressed between the support part and the bush seat, the second elastic part is compressed between the push block and the bush cover, and the magnetic part The two electromagnets are opposite to each other, and one is arranged on the surrounding wall, and the other is arranged on the stopper. The lens module can be stretched and rotated bidirectionally.

The invention discloses a spray arm assembly for a dishwasher, comprising: a spray arm, a hollow cavity is defined in the spray arm, and a water inlet hole for water inlet is provided on the spray arm, and the spray arm is used to push the spray arm along the The first thrust nozzle hole rotating in the first direction and the second thrust nozzle hole used to push the spray arm to rotate in the second direction, the second direction is the opposite direction of the first direction; the rotating blocking plate is rotatably arranged In the spray arm and switch between the first state and the second state, when the rotating block is in the first state, the first thrust nozzle is blocked and the hollow inner cavity and the second thrust nozzle are connected, and the rotating block is in the first state In the second state, the second thrust nozzle hole is blocked and the hollow inner chamber and the first thrust nozzle hole are connected. According to the spray arm assembly for the dishwasher in the embodiment of the present invention, the spray arm can be rotated in the first direction or the second direction only by turning the rotating blocking plate, which is convenient to control and the spray arm rotates stably.

The invention discloses an adjustable and detachable high-speed ship stern wave surge device, wherein the fixed slideway is hingedly connected with the ship hull through a hinge shaft at the bottom end, and the upper end of the fixed slideway is connected with an electric motor through a connecting rod so as to realize the rotation around the shaft; The two sides of the fixed sliding way are provided with sliding grooves, and the moving sliding board is integrally embedded in the fixed sliding way, so that the linear movement of the moving sliding board in the sliding way can be realized; A support frame of that wave surge plate is directly welded on both side of the moving slide plate, the first wave surge plate is welded between the support frames of the wave surge plate, grooves are arranged on both sides of the end of the first wave surge plate, the second wave surge plate is integrally embedded in the grooves, and the motor rotates to drive the linear motion of the wave surge plate to realize the change of the length; The invention can improve the resistance performance and the stability of the ship when sailing; The invention has novel structure design, and can realize the change of the length, height and angle of the surge plate. The invention not only realizes the function of the conventional surge device, but also can optimize the drag reduction surge performance by adjusting the parameters of the surge plate such as the length, the height and the angle of the surge plate.