51results about How to "Improve deceleration efficiency" patented technology

A decelerating device intended to intercept an end-of-stroke part of a closing path of a mobile member, such as a furniture drawer or door, including: a body fastenable in use to an abutting surface for the mobile member and internally defining a sealed chamber filled in use with a viscous fluid; a pushrod at least in part overhanging from the body and being adapted to cooperate in use with the mobile member, the pushrod being integral with a stem slidingly accommodated in the body against the bias of elastic means between an extracted position of the pushrod and a retracted position; and a piston accommodated in the sealed chamber so as to divide it into two portions hydraulically connected to each other and mechanically connected to the stem; wherein the stem presents a first end integrally connected to the pushrod and a second end opposite to the first, both slidingly accommodated in the body outside the sealed chamber and fluid-tightly towards the sealed chamber itself; the piston is provided with a mobile sealing member to choke the hydraulic communication between the two portions of the sealed chamber only during the stroke of the stem towards the retracted position.

The invention relates to a first-child-stage parachuting-recovery carrier rocket. The first-child-stage parachuting-recovery carrier rocket is combined by two stages of rockets and comprises a recovery system arranged in a shell of a first-child-stage rocket, wherein the recovery system comprises a speed reducing device and a buffering device; the speed reducing device is arranged at the position close to the interstage section of the shell and comprises a supporting frame connected with the inner wall of the shell; a parachuting device is arranged on the supporting frame and is used for reducing the speed of the separated first-child-stage rocket in the falling process; the buffering device comprises two buffering airbags, one buffering air bag is arranged at the position close to the interstage section, the other buffering airbag is arranged at the position close to the tail section, and the two buffering airbags are used for buffering the first-child-stage rocket in the landing process. The first-child-stage parachuting-recovery carrier rocket has the advantages that the first-child-stage rocket can land smoothly without damage under the common action of the buffering device and the speed reducing device, so that non-damage recovery of the first-child-stage rocket can be realized, and the first-child-stage rocket can be secondarily utilized, so that the launching cost can be reduced.

The invention discloses a double-shaft full-automatic solar tracking mechanism. The tracking mechanism comprises a transmission case, a horizontal spindle, a vertical spindle, a base and two photovoltaic brackets, wherein the horizontal spindle and the vertical spindle are installed in the transmission case in a cross mode, the base is rotatably connected at the bottom of the vertical spindle, the two photovoltaic brackets are fixedly connected at two ends of the horizontal spindle, and a plurality of solar photovoltaic panels are installed on each two photovoltaic bracket. A servo motor, a transmission gear, a reducer and an electromagnetic clutch are mounted in the transmission case, the transmission gear and the reducer are connected with the servo motor, the electromagnetic clutch is meshed with the transmission gear, the reducer is connected with the horizontal spindle, and the electromagnetic clutch is connected with the vertical spindle. The tracking mechanism is simple in structure, reasonable in design, convenient to install, easy to implement, low in maintenance and operation costs, high in working reliability, capable of farthest improving the generating efficiency of the solar photovoltaic panels and widely applicable to remote non-electricity areas.

The invention discloses a two-dimensional sunlight automatically tracking device which comprises a bearing frame, a first supporting column and a second supporting column which are arranged at the top end of the supporting frame and an inclined rotation mechanism housing and a horizontal rotation mechanism housing which are cradled at the top end of the first supporting column and the second supporting column. An inclined rotation shaft which is connected with an inclined rotation power mechanism is arranged in the inclined rotation mechanism housing; a small gear shaft which is provided with a small gear is arranged in the horizontal rotation mechanism housing; the horizontal rotation mechanism housing which is arranged above the small gear shaft is provided with a horizontal rotation shaft; the horizontal rotation shaft is provided with a big gear which is meshed with the small gear; the end portion of one end of the small gear shaft is connected with a horizontal rotation power mechanism; and two ends of the horizontal rotation shaft are respectively provided with a solar cell panel. The two-dimensional sunlight automatically tracking device has the advantages of being compact in structure, reasonable in design, convenient to install, convenient and rapid to use, high in rotating stability and tracking precision, low in achievement cost, power consumption and operating cost, good in using effect and convenient to popularize and utilize.

The invention discloses a coaxial multi-stage gearbox. The coaxial multi-stage gearbox comprises a box body, wherein a driving device and a speed changing adjusting device are arranged in the box body; the speed changing adjusting device can be engaged with the driving device so that the driving device outputs various powers; the driving device comprises an input system and an output system; the input system comprises an input driving gear shaft; the output system comprises an output spindle which can be engaged with the input driving gear shaft and outputs power; the speed changing adjusting device comprises a clutch gear; and the output spindle penetrates through the clutch gear. The box body comprises a first shell; the output system comprises a driving output device and a driven output device; the driving output device comprises an output spindle and a first clutch inner gear ring which is fixedly arranged on a reverse side, which is opposite to the first shell, of the clutch gear; and the driven output device comprises a second clutch inner gear ring. The coaxial multi-stage gearbox has the advantages that a speed changing range is large, retardation efficiency is high, various powers can be output, speed changing in various grades is realized, and an infinite step speed changing range can be obtained.

The invention relates to the technical field of mechanical equipment, and discloses a high-reduction-efficiency reducer exclusive to tension leveling of a continuous casting machine. The reducer comprises a driving device, a transmission device, a rotating device and a controlling device. The driving device comprises a motor; a motor rotating shaft is arranged on the motor; a transmission shaft Iis fixedly connected with the left side face of the motor rotating shaft; a conical gear I is fixedly connected with the left side face of the transmission shaft I; a conical gear II is engaged with the conical gear I; a transmission shaft II is fixedly connected with the rear side face of the conical gear II; a fixing sleeve ring I is connected with the circumferential surface of the transmissionshaft II in a penetrating mode; the transmission device comprises a gear I and a track; a transmission shaft II is fixedly connected with the front side face of the gear I; a gear II and a gear III are engaged with the gear I; a toothed groove is formed in the inner side face of the track; and the gear II and the gear III are engaged with the toothed groove. When the motor is initiated, the rotating direction of the gear II and the gear III is opposite to the rotating direction of the motor rotating shaft I and a motor rotating shaft II, so rapid reduction of equipment is realized.

The invention relates to the technical field of speed reducers, and discloses a cycloid planetary gear speed reducing mechanism comprising a shell, a coupler and an output shaft. The coupler and the output shaft are both rotationally connected with the shell, a first-stage speed reducing assembly and a second-stage speed reducing assembly are arranged in the shell, and the coupler penetrates into the shell and then is connected with the first-stage speed reducing assembly. The output shaft penetrates into the shell and then is connected with the second-stage speed reducing assembly, and the first-stage speed reducing assembly is connected with the second-stage speed reducing assembly. A prime motor works to drive the coupler to rotate, the coupler drives the first-stage speed reducing assembly to work, and first-stage speed reduction is achieved; the first-stage speed reducing assembly and the second-stage speed reducing assembly cooperate to drive the second-stage speed reducing assembly to work, and second-stage speed reduction is achieved; and the transmission ratio of the speed reducing mechanism is effectively increased through cooperation of two-stage speed reduction effects, and the cycloid planetary gear speed reducing mechanism is simple in structure and has the advantages of being large in speed reduction ratio, small in axial size, large in output torque and low in noise.

The invention relates to automatic test equipment. The equipment comprises a shell, a transmission mechanism and a controller, the controller is fixed on outer side of shell, and the transmission mechanism is fixed in the shell; the conveying mechanism comprises a first conveying belt and a second conveying belt. The first conveying belt is parallel to the second conveying belt; the second conveying belt is located on the left side of the first conveying belt. A compression resistance testing mechanism and a heat insulation testing mechanism are sequentially arranged beside the first conveyingbelt in the conveying direction. A corrosion resistance testing mechanism is arranged right above the second conveying belt; the first conveying belt, the second conveying belt, the compression resistance testing mechanism, the heat insulation testing mechanism and the corrosion resistance testing mechanism are all electrically connected with the controller, the compression resistance testing mechanism is connected with the heat insulation testing mechanism through the transmission device, automatic testing of plates is achieved, and the testing efficiency of the plates is improved.

The invention discloses a motor system with precisely controllable output rotating speed. The motor system comprises a shell, a power member, a speed reduction switching piece, a speed reduction piece and a deceleration switching output piece; the speed reduction switching piece comprises a first speed reduction switching part, a second speed reduction switching part and a third speed reduction switching part, the first speed reduction switching part, the second speed reduction switching part and the third speed reduction switching part are all arranged on the power member; the speed reduction piece comprises a first speed reduction part, a second speed reduction part and a third speed reduction part; the first speed reduction part is in meshing transmission with the first speed reduction switching part, the second speed reduction part is in meshing transmission with the second speed reduction switching part, and the third speed reduction part is in meshing transmission with the third speed reduction switching part; and the deceleration switching output piece comprises a first output piece, a second output piece and a third output piece. The motor system is compact in structural design, high in speed reduction efficiency, high in applicability, large in output torque, low in failure rate, low in maintenance cost, reliable in operation and capable of meeting various precision requirements and output torque requirements.

The invention discloses a gear motor aluminum wire motor for a stereo garage, which comprises a speed reduction bearing piece, a speed reduction input piece and a speed reduction output piece, whereinthe speed reduction bearing piece comprises a speed reduction housing, a rotating bearing and a gear speed reducer, the rotating bearing is disposed in the speed reduction housing, and the gear speedreducer is disposed on the rotating bearing; the speed reduction input piece comprises a first transmission input piece, an inserting and pulling piece and a second transmission input piece, the first transmission input piece and the second transmission input piece are both arranged on the gear speed reducer, and the inserting and pulling piece is arranged on the speed reduction housing; the first transmission input piece comprises a first turbine, and the second transmission input piece comprises a second turbine; and the speed reduction output piece comprises a second transmission pipe, a third transmission pipe and a selection output piece, the second transmission pipe and the third transmission pipe are both arranged on the gear speed reducer, and the selection output piece is arranged on the rotary bearing. The gear motor aluminum wire motor is reasonable in structural design, high in speed reduction efficiency, long in service life and capable of achieving various speed reduction modes.

A double-rope hydraulic damping descent control device is mainly composed of a cylinder sleeve, an end cover, a left descent control rope, a right descent control rope, a left rope winding wheel, a right rope winding wheel, a left rotating shaft, a right rotating shaft, a left blade, a right blade, damping liquid and the like. One end of the left descent control rope and one end of the right descent control rope are connected with a person or an object which needs to descend slowly. The left descent control rope and the right descent control rope are reversely wound on the left rope winding wheel and the right rope winding wheel respectively. The person or the object drives the left descent control rope and the right descent control rope when descending. The left descend control rope and the right descend control rope make the left blade and the right blade oppositely rotate in the space composed of the cylinder sleeve and the end cover through the left rope winding wheel, the right rope winding wheel, the left rotating shaft and the right rotating shaft respectively, wherein the space is filled with damping liquid. The momentum generated when the damping liquid moves impacts on the left blade and the right blade, the left blade and the right blade generate opposite torques, and therefore the aim of slowly descending the person or the object at a constant speed is achieved. The descent control device has the advantages of being simple in structure, safe, reliable, low in manufacturing cost, durable in use and the like.

The invention discloses a deceleration cutting control method and control device. The deceleration cutting control method comprises the steps that when a product to be cut runs to the preset positionor receives a deceleration signal, the product to be cut is decelerated according to a preset deceleration curve; and when the product to be cut finishes deceleration according to the preset deceleration curve, the product to be cut is cut. The control device comprises a conveying piece, a detection element, a sensor, a controller and a cutting piece. That the product to be cut runs to the presetposition or receives the deceleration signal is adopted as a control signal for decelerating the product to be cut, that is, the product to be cut is decelerated according to the preset deceleration curve as long as any one of the signal that the product to be cut runs to the preset position or the deceleration signal is received is received, and the product to be cut is decelerated according to the preset deceleration curve; and the deceleration curve is preset in advance, so that the preset deceleration curve is flexibly planned, the product to be cut is decelerated according to the deceleration curve, the deceleration time is shortened, and the deceleration efficiency is improved.

The invention discloses a rapid automatic door deceleration device and belongs to the technical field of automatic door deceleration devices. The technical problems that the automatic door deceleration device is low in deceleration efficiency and an automatic door is labor-consuming to open are solved. According to the solution, a gearbox is arranged on one side of a motor; a motor rotor stretches into a gearbox shell; a worm is fixedly arranged at the end of the motor rotor; a gear shaft is meshed with the worm perpendicular to the worm axis direction; a transmission gear is arranged on the upper part of the gear shaft; the transmission gear transmits power to a belt pulley drive shaft through a bevel wheel meshed with the transmission gear; the axis direction of the belt pulley drive shaft is parallel to an axis direction of the gear shaft; and a belt wheel is fixedly arranged on a part, which is positioned on the outer side of the gearbox, of the belt pulley drive shaft. According to the invention, a power transmission system in the gearbox is changed, so that the automatic door is labor-saving to open, a reduction ratio is increased, and the deceleration efficiency of the automatic door deceleration device is improved.

The invention provides a gravity type precipitation device and method. The gravity type precipitation device comprises a first closed container and a first inverted container; the first inverted container is of an inverted U-shaped structure; the first inverted container is coaxially arranged in the first closed container, a first air outlet is formed in the top of the first inverted container; anopening is formed in the bottom of the first inverted container; the first inverted container with an inverted U-shaped structure is coaxially arranged in the first closed container; under the condition that the same expansion volume is realized, the structure is more compact, the required occupied area is smaller, and the speed reduction efficiency of gas is higher. in addition, the through-flowcross section of the first inverted container is larger than or equal to the through-flow cross section of the channel between the first closed container and the first inverted container, and the defect of secondary acceleration caused by the fact that the through-flow cross section of the airflow channel is decreased from large to small is overcome.

The invention belongs to the field of air purification, and provides a spray purification device and method. The device comprises a closed container, an inverted container and a plurality of pipelineswith spray heads. An air inlet is formed in the top of the closed container; the lower part of the closed container serves as a water collecting tank; a first wastewater discharge valve is arranged at the bottom of the water collecting tank; the inverted container is of an inverted U-shaped structure; the inverted container is coaxially arranged in the closed container, an exhaust port is formedin the top of the inverted container, an opening is formed in the bottom of the inverted container, a plurality of pipelines with spray heads are arranged on the inner wall of the closed container andthe inner wall and the outer wall of the inverted container respectively, and water in the water collecting tank is pumped to the spray heads through a pressure pump. The dust-containing pressurizedgas is humidified by the spray head so that solid particles with the particle size of 2.5-10mu m in the dust-containing pressurized gas are precipitated or the dust is dissolved in the water when meeting the water to increase the weight, thereby achieving the purpose of purifying the air.

An economical elevator additionally arranged outside a building comprises an old building, an old stair, an elevator shaft, a shaft door, a car, a car door, an elevator door platform, a newly-built walkway, a newly-built stair, an elevator machine room, a harmonic speed reduction traction machine, a traction wheel, a traction guide wheel, a steel wire rope, a car guide wheel, a car guide rail, counterweight iron plates, counterweight guide wheels, counterweight guide rails, Hall sensors, strip-shaped permanent magnets, an intelligent controller and operating buttons; the harmonic speed reduction traction machine is a hub type traction machine integrating a harmonic speed reducer, a two-pole outer rotor brushless permanent magnet direct current motor and the traction wheel; when the two-pole outer rotor brushless permanent magnet direct current motor is shut down, large magnetic resistance exists between a rotor and a stator, a speed reduction ratio of the harmonic speed reducer is large; when the harmonic speed reduction traction machine is shut down, the harmonic speed reduction traction machine has a strong self-locking function which is equivalent to a braking state, a braking system of the traction machine is omitted, the harmonic speed reduction traction machine is simple and cheap, and the safety and the reliability meet the standard requirements.

The invention discloses a planet speed reducer with an efficient heat dissipation function. The planet speed reducer comprises an outer shell, an inner shell, a first sun gear and first planet gears.According to the planet speed reducer with the efficient heat dissipation function, a plurality of heat dissipation holes are formed in the shell wall of the inner shell so that heat in the inner shell can be dissipated; a plurality of arc-shaped heat dissipation pipes are symmetrically arranged on the two sides of the shell wall of the outer shell, so that the heat dissipated by the heat dissipation holes is discharged; the central positions of the arc-shaped heat dissipation pipes are bent upwards, the situation that water on the shell wall of the outer shell flows into the interior of the arc-shaped heat dissipation pipes, and enter the inner shell through the heat dissipation holes, equipment in the inner shell is damaged can be prevented from appearing, and the arc-shaped heat dissipation pipes have a waterproof function, so that the speed reducer has the efficient heat dissipation function, and the using time of the speed reducer is prolonged; and through the driven action of theplanet gears and the sun gears, the speed reducer can have an efficient speed reduction function, the cooling effect is good, the speed reduction efficiency is high, and the popularization and the use are facilitated.

The invention relates to an electric drive axle system and a pure electric operation vehicle using the system.The electric drive axle system comprises an axle, the axle comprises an axle main speed reducer, and the electric drive axle system further comprises a drive motor, an operation motor, a drive clutch and an operation clutch, the driving clutch is fixedly mounted on the driving motor, the operation motor is fixedly connected with the driving clutch, and the operation clutch is fixedly connected with the operation motor, so that the driving motor, the operation motor, the driving clutch and the operation clutch are integrally mounted on the axle, and the whole system is compact in layout; and traditional parts such as a transmission shaft and a motor suspension in an existing scheme are omitted, so that the overall cost is effectively reduced. Moreover, the power coupling of the two motors can be realized by utilizing the driving clutch, so that the vehicle can be driven to run together, the power requirement on the motors is reduced, the motors can work in a high-efficiency area, the transmission efficiency is improved, and the power consumption is reduced.