345results about How to "Improve deceleration effect" patented technology

The invention discloses a rotary table of a desktop mechanical arm. The rotary table is provided with a base, a large arm driving motor, a small arm driving motor, a large arm speed reducing assemblyand a small arm speed reducing assembly, wherein the large arm driving motor and the small arm driving motor are located at the rear side of the base and arranged in an up-down stacking manner; the large arm speed reducing assembly and the small arm speed reducing assembly are located on the left outer side surface and the right outer side surface of the base separately; the large arm speed reducing assembly comprises a large arm first-level synchronous belt wheel and a large arm second-level synchronous belt wheel located between the large arm first-level synchronous belt wheel and the base;and the small arm speed reducing assembly comprises a small arm first-level synchronous belt wheel and a small arm second-level synchronous belt wheel located between the small arm first-level synchronous belt wheel and the base. According to the rotary table of the desktop mechanical arm, the safety is improved; for a speed reducing synchronous belt, arrangement for auxiliary assemblies is reduced, so that the manufacturing cost is reduced, and the speed reducing ratio can be increased and the speed reducing effect can be improved, so that the control precision is ensured; and moreover, the rotary table of the desktop mechanical arm is simple in structure, easy to detach and install, and convenient to maintain.

The invention discloses a novel high-speed light-gas gun muzzle bullet-separating vibration damping system. The system comprises a bullet-separating device cavity connected with a high-speed light-gas gun barrel via threads, and a viscoelastic high-damping rubber gasket and an elastic supporting baffle connected with the bullet-separating device cavity in sequence via a plurality of positioning shafts, each positioning shaft is sleeved by a spiral spring group, the spiral spring group of each positioning shaft is segmented into two parts via a spiral spring separating plate sleeving the positioning shafts, and end parts of the positioning shafts, far away from the bullet-separating device cavity, are connected with double-cylinder bullet-separating vibration dampers via threads. The high-speed light-gas gun muzzle bullet-separating vibration damping system is advantageous in that the occupied space is small, the mass is small, the system is detachable and portable, a bullet holder can be recycled, and the buffer effect is good; the bullet-separating vibration damping system and the barrel and the double-cylinder bullet-separating vibration dampers and the positioning shafts are both connected via the threads so that the dismounting is facilitated; the impact effect on a bullet-separating device by the bullet holder is alleviated via vibration damping spiral springs; and rapid attenuation of the vibration of the bullet holder is realized via the viscoelastic high-damping rubber gasket and the double-cylinder vibration dampers.

The invention relates to a transmission, in particular to a planetary automatic transmission. The planetary automatic transmission comprises the input end, a torque converter, a lockup clutch, a hydraulic retarder, four planetary rows, two clutches, four brakes and the output end, wherein the input end is connected with a torque converter pump impeller, a torque converter worm wheel and a rotor of the hydraulic retarder are connected with a first planetary frame, a first gear ring and a second solar gear are connected with a third solar gear, a second planetary frame and a third gear ring are connected with a fourth solar gear, a third planetary frame and a fourth planetary frame are connected with the output end, the two ends of the lockup clutch are connected with the torque converter worm wheel and the torque converter pump impeller respectively, the two ends of the first clutch are connected with the first planetary frame and a first solar gear respectively, the two ends of the second clutch are connected with the first gear ring and the second solar gear respectively, one ends of the brakes are fixed, and the other ends of the brakes are respectively connected with the first solar gear, the second gear ring, the third gear ring and the fourth gear ring. According to the planetary automatic transmission, six forward gears and two backward gears can be achieved, the structure is simple, and machining is conveniently carried out.

The invention relates to a motor gear reduction box which comprises: a gearbox, a covering that match with the box and a gear reduction mechanism is arranged in the gearbox. The gear reduction mechanism is arranged in the reduction box, the two ends of each gear shafting are fixed in the holes on the box and covering. Outside of the covering equipped a ring boss; the motor directly connects with the gearbox via the covering; the input axle of the motor is geared with the gear reduction mechanism via the inside connection hole; on the bottom of the box provided the output axle connection hole.

The invention provides an intelligent deceleration strip with a power generating device and a control method of the intelligent deceleration strip. The intelligent deceleration strip comprises a deceleration strip mechanism, an energy conversion mechanism, a connection rod drive mechanism, an engagement and disengagement mechanism, a gear acceleration drive mechanism and a control system. The control system controls engagement and disengagement of the engagement and disengagement mechanism according to the speed of a vehicle to drive through the deceleration strip, specifically, when the vehicle speed is higher than the limit speed, the engagement and disengagement mechanism is engaged, and energy generated when wheels act on the deceleration strip mechanism drives the energy conversion mechanism to generate power through the connection rod drive mechanism, the engagement and disengagement mechanism and the gear acceleration drive mechanism; and when the vehicle speed is lower than or equal to the limit speed, the engagement and disengagement mechanism is disengaged, and the descending motion of the deceleration strip only needs to overcome elasticity of a reset spring and friction force of the device without driving the energy conversion mechanism to generate power. The intelligent deceleration strip achieves recycling of part of vibration impact energy generated when the vehicle drives through the deceleration strip, and ensures comfort when the vehicle drives through the deceleration strip at low speed.

The invention discloses a speed reducing pipe, which comprises a speed reducing pipe body, wherein a flow channel is formed in the speed reducing pipe body; speed reducing plates are arranged at intervals on the upper and lower parts of an inner wall of the flow channel respectively. According to the speed reducing pipe, the speed reducing plates are arranged on the upper and lower parts of the inner wall of the flow channel in the speed reducing pipe body respectively, so that the velocity of fluid in the flow channel can be reduced under the blockage of the speed reducing plates when the fluid passes through the flow channel; in addition, the flow direction of the fluid can be changed between the adjacent speed reducing plates on the upper and lower parts of the inner wall of the flow channel, so that the flow path of the fluid can be prolonged, and a better speed reducing effect is achieved; the speed reducing pipe is simple in structure; the use of additional equipment for reducing the flow velocity of the fluid is avoided, so that the speed reducing pipe is low in using cost.

The invention relates to a magnetic-damped lifesaving device which comprises a shell, a rope-rolling plate, a hook and an automatic control magnetic brake equipment and is characterized in that: the rope-rolling plate is provided with a brake; the automatic control magnetic brake equipment comprises a magnetizer, a rotating magnetic core and a magnetic brake board; the rotating magnetic core matches with the shell, and is fixedly connected with the rope-rolling plate; the magnetic brake board of the automatic control magnetic brake equipment is connected with a braking rotating bar of the brake. When the magnetic-damped lifesaving device is used for escaping by people in tall buildings, the rope-rolling plate drives the magnetic core to rotate and automatic braking is continuously recycled for one time when the magnetic core rotates in 90 degrees, thus the deceleration effect is improved; the stopping phenomenon after braking can also be avoided, and the cost is low owing to the simple mechanism.

The invention relates to a capsule endoscope based on IPMC (ionic polymer metal composite) driving and a driving method thereof. The capsule endoscope based on the IPMC driving comprises a capsule front cover, a capsule main body structure and a capsule tail structure, wherein a plurality of slice IPMCs are arranged on the outer side of the capsule main body structure and on the capsule tail structure along the axial direction of a capsule. Under normal moving status of the capsule endoscope based on the IPMC driving, the slice IPMCs on the outer side of the capsule main body structure can be folded along the capsule, and are unfolded outwards after control signals are applied onto the slice IPMCs on the outer side of the capsule main body structure, and thereby can be used to achieve a deceleration or clamping function. When the slice IPMCs on the outer side of the capsule main body structure are respectively controlled, a posture adjustment for the capsule can be achieved. One or two IPMCs can be installed at the tail end of the capsule, and are used to achieve an active driving function. The capsule endoscope based on the IPMC driving and the driving method thereof use IPMC artificial muscle smart materials good in biocompatibility to achieve movement and posture control of the capsule endoscope based on the IPMC driving in a human body.

The invention discloses clamping equipment with a turnover structure for computer memory bank detection, and relates to the technical field of computer memory bank detection. The clamping equipment comprises a base, a detection mechanism and a clamping mechanism, a working frame is arranged on the outer side of the upper end of the base, a conveying belt is arranged in the center of the upper endof the base, and a placement block is arranged at the upper end of the conveying belt; and a placement groove is formed in the center of the upper end of the placement block, a protective layer is arranged on the inner wall of the placement groove, a memory bank body is placed on the inner side of the placement groove, and the detection mechanisms are arranged on the lower portions of the two sides of the interior of the working frame. By the movably connected clamping block and C-shaped connecting block, the upper end of the clamping block is enabled to clamp the memory bank body through thepushing cylinder. When the pushing air cylinder pushes the upper end of the clamping block to descend, the lower end of the clamping block is opened, otherwise, the pushing air cylinder pulls the upper end of the clamping block to ascend, the lower end of the clamping block is closed, and an infrared sensor is arranged in a matched mode to control opening and closing of the movable clamping block.

The invention discloses a road traffic visual illusion speed reduction marking arranging method. The road traffic visual illusion arranging method aims to realize the purposes of effectively reducing the vehicle speed, simple principle, less engineering investment, easy construction, high construction speed, easy maintenance and cleaning, no noise, favorable popularization and application to urban roads and low-grade roads. The technical scheme is as follows: the combination of three-dimensional marking illusion and speed illusion is adopted, speed reduction markings are mainly arranged ahead the sections, such as accident-prone sections, intersections with low visibility, entrances of interchange deceleration ramps at which vehicles are required to pass at a lower speed, a group of three-dimensional visual illusion speed reduction markings parallel to lane boundaries are arranged in the middle of a road at a certain interval, each group of three-dimensional visual illusion speed reduction markings comprise a plurality of three-dimensional visual illusion speed reduction markings, every two adjacent three-dimensional visual illusion speed reduction markings of each group have the same interval, the interval of the two adjacent markings along the running direction of the vehicle is gradually decreased, and the visual illusion speed reduction markings having three-dimensional visual effects are formed by drawing with three different colors.

The invention discloses a three-dimensional zebra crossing. The three-dimensional zebra crossing comprises a top face and four side faces including a front face, a rear face, a left face and a right face. The zebra crossing is embedded into the surface of the ground. The top face and the side faces can be rendered with coating, and the three-dimensional effect is highlighted. Glass powder can be added into the coating, and the zebra crossing can be seen clearly at night. The three-dimensional zebra crossing has the advantages that the three-dimensional effect is achieved, the zebra crossing is like a deceleration strip, the deceleration effect is improved, and the safety coefficient of a city is improved.

The invention discloses an escape automobile control device. According to the technical scheme, the escape automobile control device is characterized by comprising a front fixing seat and a back fixing seat, wherein a groove is formed in the front fixing seat, the front fixing seat and the back fixing seat are connected through a fixing part, a buffer air bag is also arranged on the back fixing seat, a steel wire rope is connected in front of the front fixing seat and the back fixing seat, an automobile loses the advancing power when driving to the steel wire rope due to the fact that wheels are not contacted with the ground, after the automobile gradually decelerate, violent criminals can be arrested, meanwhile, the steel wire rope is also connected with a resistance device located in the back fixing seat, by the aid of the device, the gravity and inertia of the automobile are converted into positive pressure on the ground, so that resistance is increased, and larger buffering force is provided. The device solves the problem that existing roadblocks cannot well control automobiles of criminals and thus delay the opportunity of arresting criminals.

The invention relates to an intelligent telescopic rod and mainly solves problems that a conventional telescopic rod decelerator lacks of an effective deceleration effect and a telescopic rod cannot accurately control the stroke and the speed of a screw. The intelligent telescopic rod comprises a battery device, a micro control switch, a rotating mechanism, a driving motor, and a telescopic rod part which are disposed in a housing. The intelligent telescopic rod is small and exquisite, portable, and easy to operate, is a convenient electric tool, is suitable for high low operation and operation at positions where workers cannot reach, such as garden flower and wood trimming, decoration, and cleaning, prevents troubles and insecurity in ladder movement, and in increased in power by over 4 times. The intelligent telescopic rod uses a rechargeable battery, is safe and reliable, not restricted by a power supply, small and beautiful in appearance, advanced and reasonable in design, and fills a blank of domestic and overseas freely-movable and telescopic manual tools.

The invention provides a highway vibrating decelerating facility. The highway vibrating decelerating facility comprises N1 road deceleration reminding signboards, N2 groups of hot-melted vibration marking lines and N3 vibrating decelerating road segments, all of which are orderly arranged in the driving direction of vehicles, wherein N1, N2 and N3 are set values; the road deceleration reminding signboards are arranged on the roadside; the hot-melted vibration marking lines are formed on the pavement and perpendicular to the driving direction of vehicles; decelerating balls are arranged on the vibrating decelerating road segments; the decelerating balls are spherical projections and in smooth transition with the ground; the decelerating balls located on the same vibrating decelerating road segment are as high as each other; in the driving direction of vehicles, the decelerating balls located on the later vibrating decelerating road segment are higher than the decelerating balls on the previous later vibrating decelerating road segment. The highway vibrating decelerating facility is capable of generating lasting vibration to enable drivers to reduce speeds, has the advantages of simple structure, novel and reasonable in design, high in reliability, obvious deceleration effect and the like, and is good in control effect, low in implementation cost and convenient to popularize.

The invention discloses a safety elevator. The safety elevator comprises a shaft way and a lift car, wherein the lift car is arranged in the shaft way; the shaft way is internally provided with a track which is used for guiding the lift car to run and a speed reduction device; the lift car is provided with a connection device which is matched with the speed reduction device and a control device which is used for controlling the connection device to be connected with and disconnected from the speed reduction device. According to the safety elevator disclosed by the invention, when the situation that the speed of the lift car is too fast is detected by the safety elevator, the speed is reduced through hooking a hook to speed reduction sliding blocks, and the speed reduction effect is obvious; when the kinetic energy which is generated during the speed reduction of the lift car is converted into the hydraulic energy of a hydraulic cylinder, the speed is reduced by simultaneously driving a buffer piece and supporting pieces by the hydraulic cylinder, and the safety is further ensured.

The invention discloses an airbag deceleration belt. The airbag deceleration belt comprises a base, a deceleration seat and a plurality of airbags, wherein the airbags are in communication with each other and horizontally arranged to form an airbag layer, and the airbag layer is arranged between the base and the deceleration seat. Air guide hoses are correspondingly arranged on the two sides of the airbag layer, and an elastic supporting assembly is arranged between the base and the deceleration seat. According to the airbag deceleration belt, through arranging the elastic supporting assemblybetween the base and the deceleration seat, the air bags can quickly return air, and thus the occurrence of the situation that the air bags cannot achieve a better deceleration effect on the vehicle due to slow return air speed of the air bags is prevented, the deceleration belt can be ensured to work normally, and the deceleration effect is stable.

The invention discloses an automatic speed reducing device for a rotating shaft. The device comprises a base (1), wherein the base (1) is provided with a guide sleeve (2), the guide sleeve (2) is rotationally connected with a cylinder (4) through a bearing (3), the end, facing a rotating shaft (5), of the cylinder (4) is rotationally connected to a plurality of claws (6), and the plurality of claws (6) are evenly distributed around the axis of the cylinder (4); a pull rod (7) is slidably connected to the cylinder (4), the end, close to the rotating shaft (5) , of the pull rod (7) is provided with connecting rods (8) for driving the plurality of the claws (6) to rotate synchronously, and the end, far away from the rotating shaft (5), of the pull rod (7) is provided with a first magnet (9); and the end, far away from the cylinder (4), of the guide sleeve (2) is rotationally connected to a rotating pin (24), and a second magnet (10) which is used for attracting or repelling the first magnet (9) is arranged in the rotating pin (24) in an embedded mode. According to the automatic speed reducing device for the rotating shaft, the rotating shaft can automatically stop rotating after the work is finished.

The invention relates to an intelligent sweeping robot based on the Internet of Things, which includes a body, a signal receiving window arranged on the body, and a sweeping mechanism and a moving mechanism arranged under the body. The sweeping mechanism comprises two sweeping components under the body and positioned at both side of the body. In the intelligent sweeping robot based on the Internet of Things, a user remotely controls the sweeping robot through a wireless communication module. The brake of a driving wheel is realized by controlling the friction of a brake lining and the corresponding driving wheel through a piston in a braking mechanism, and the slow-down effect of the robot is improved. In a timing circuit, the long time timing is realized by replacing an expensive large low leaky capacitor through a frequency divider network taking a second integrated circuit as the main circuit. A first integrated circuit and a third integrated circuit have the characteristics of high performance and low cost, thus the production cost of the timing circuit is reduced, and the cost performance of the timing circuit is improved.

The application provides a vehicle and a power assembly system thereof, and belongs to the field of power transmission. The power assembly system of the vehicle comprises two driving motors and two speed reducers; each speed reducer comprises a parallel-shaft gear reduction mechanism and a planetary gear reduction mechanism; an input gear of each parallel-shaft gear reduction mechanism is connected to one corresponding driving motor, and an output gear is connected to a driving part of one corresponding planetary gear reduction mechanism; and a driven part of each planetary gear reduction mechanism is connected with a power output shaft. At the same rotating speed, the gear processing difficulty in the parallel-shaft gear reduction mechanisms is relatively difficult, the parallel-shaft gear reduction mechanisms are directly connected with the driving motors, and then the planetary gear reduction mechanisms are connected with the parallel-shaft gear reduction mechanisms to reduce the rotating speed of the planetary gear reduction mechanisms and further reduce the requirements for the gear processing accuracy of the planetary gear reduction mechanisms. Moreover, since each speed reducer comprises two cascaded reduction mechanisms, the reduction effect is better.

The invention relates to the technical field of airplane emergency forced landing, and discloses a ground auxiliary bracket for airplane forced landing. The ground auxiliary bracket comprises a damping wheel; the damping wheel is mounted on a square bearing through a rotating shaft; a damping spring is further arranged at the top of the square bearing, so that when airplane forced landing rear wheels land on the bracket firstly, the rear end of a bottom plate can be effectively damped; buffer springs are further arranged at the bottom of the bracket to damp the whole bracket, and the damping effect is better; a front limiting piece is used for limiting the position of the top end of the airplane; a rear limiting piece can extend out of the bottom plate and is used for limiting the positionof the tail of the airplane; clamping plates can be driven by a first motor to get close to each other to clamp an airplane body of the airplane, is better in fixing effect, and can prevent the airplane from being separated from the bracket; the front limiting piece is used for limiting the position of the airplane and increasing the resistance of the air to enable the bottom plate to stop sliding gradually; and a parachute pack is further arranged at the tail end of the bottom plate, the bottom plate can be further decelerated when the parachute pack is opened, and the deceleration effect isbetter.