292results about How to "Few parts" patented technology

A backlight device illuminates a transmissive liquid crystal panel from a rear surface thereof, and includes light source substrates, a reflecting sheet, a diffusing-guiding plate, and an optical-function-sheet layered body. The substrates have light-emitting elements for illuminating illumination light. The reflecting sheet has the substrates mounted to one surface thereof, has an opening formed in correspondence with the light-emitting elements, allows the light-emitting elements to be exposed at another surface of the reflecting sheet from the opening, and reflects the illumination light from the light-emitting elements by the another surface. The plate faces the another surface side of the sheet at a predetermined interval from the reflecting sheet, and diffuses in a layer thereof the illumination light incident from the reflecting sheet. The layered body is combined to the plate, includes laminated optical function sheets, and guides the illumination light to the panel.

A magazine loader (10) for firearm magazines (40) has a projecting side button (50) coupled to a follower (52). Two similar and substantially flat flaps (12, 14) are hinged by a pin (18) along their longer side. A torsion spring (16) encompasses the pin and is positioned between the flaps, forcing them apart. Each flap has a substantially rectangular opening (20A, 20B) sized and positioned to fit over a magazine. The flaps can angle between an open position and a closed (parallel and touching) position. To load the magazine, a user squeezes and holds the flaps ends closed to align the openings so that the openings can be slid over the magazine to push the button down. Upon releasing the flaps they open, locking the openings on the magazine. Rounds (60) then can easily be loaded into the magazine. The loader may use a grasping member in lieu of flaps.

A continuously variable transmission with two adjustable pulleys and an endless torque-transmitting chain trained over the pulleys has a torque sensor which transmits variable torque from the rotary output element of a prime mover (such as the engine of a motor vehicle) to the axially movable flange of one of the pulleys. The torque sensor comprises one or more rolling elements and cam faces and/or guide surfaces which confine the rolling element(s) to movements radially and/or axially of the respective pulley. At least the rolling element(s) and those components of the torque sensor which define the cam faces and/or the guide surfaces of the torque sensor are confined in a fluid-containing plenum chamber adjacent the axially movable flange of the one pulley to thus achieve a pronounced reduction of space requirements of the unit including the one pulley and the torque sensor in the axial direction of the one pulley. The fluid in the plenum chamber serves to urge the axially movable flange of the one pulley against the adjacent edge face of the chain and to thus urge the other edge face of the chain against the axially fixed flange of the one pulley.

The invention discloses a manually-pressed type rotating mop rod. The manually-pressed type rotating mop rod comprises an inner rod body, an outer rod body, a rotating sleeve, a guide shaft core, a rotating guide piece, a blocking portion and a braking portion. The inner rod body and the outer rod body are mutually connected in a sleeved mode. The rotating sleeve is arranged in the inner rod body and the inner wall of the rotating sleeve is provided with a spiral groove. The guide shaft core is arranged in the rotating sleeve, and the upper end of the guide shaft core is fixedly connected with the outer rod body. The rotating guide piece is sleeved at the lower end of the guide shaft core and capable of rotating along the guide shaft core. The blocking portion is arranged at the lower end of the guide shaft core and used for blocking the rotating guide piece from slipping off. The braking portion is capable of preventing the rotating guide piece from rotating. The rotating guide piece is capable of moving vertically in a small distance between the blocking portion and the braking portion. The manually-pressed type rotating mop rod is simple in structure, small in number of components, easy to assemble and high in production efficiency, and dewatering effect is improved greatly, and the phenomenon that a mop head idles can not happen in long-term use.

The invention discloses a making device of a coffee capsule maker, which comprises a framework, a making component, a driving component and a making chamber used with the making component to make coffee. The making component comprises a guide-in mechanism and a brewing mechanism, the guide-in mechanism comprises a guide-in rack, a separation blade and a guide track, the upper end of the separation blade is in transfer connection onto the guide-in rack, the lower end of the separation blade is connected with the guide track via a slide pin component, the guide track is provided with a one-way advancing slide way and a one-way withdrawing slide way, when the making component approaches the making chamber, the slide pin component slides along the one-way advancing slide way and drives the separation blade to expand so as to release a capsule, when the making component resets, the slide pin component slides along the one-way withdrawing slide way and drives the separation blade to be folded after the capsule drops, and an elastic component which drives the capsule to be separated from the making chamber when the making component resets is arranged in the making chamber. The coffee capsule maker is simple in structure, convenient in use and fine in universality, coffee capsules can smoothly drop assuredly after being made, and reliability of products is improved.

The invention relates to a novel pulping mechanism and a pulping machine. The pulping mechanism comprises a movable grinding disk and a static grinding disk, wherein the movable grinding disk is positioned at the upper side, and the grinding surface of the movable grinding disk is provided with convex grinding teeth; and the static grinding disk is positioned at the lower side, the grinding surface of the static grinding disk is provided with convex grinding teeth and feeding holes penetrating through the upper surface and the lower surface of the static grinding disk, and material and liquid enter the space between the two grinding disks through the feeding holes from the lower part of the static grinding disk for grinding; The pulping mechanism is soaked in the liquid, the height between the pulping mechanism and the bottom of a container is greater than the particle diameter of the material, the grinding teeth are used for discharging the liquid through rotation of the movable grinding disk to generate negative pressure in the grinding space, and the material at the lower part is pressed into the grinding surface from the lower part of the pulping mechanism for grinding. The pulping machine realizes the cyclical fine grinding effect by utilizing the pulping mechanism. The invention is suitable for families, has good pulping effect and little discharged residues, fully releases nutrient components in the material, and can effectively prevent the nutrient components from being damaged. The produced soybean milk, fruit juice and the like are nutrient, healthy and good in taste.

A valve device, in particular a window and lens cleaning device in motor vehicles, includes a housing (1) with a duct (2) and at least one nozzle (3), and also a tubular connecting piece (4) for feeding a pressurized fluid, in particular a cleaning liquid, into the duct and to the nozzle. The connecting piece (4) is provided at its nozzle-side end with a nonreturn valve which blocks a return flow from the nozzle to the connecting piece, wherein the connecting piece (4) is open at its nozzle-side end. The nonreturn valve comprises of an elastic shaped part (8) with a mouth which is normally closed and can be opened by the pressure of the cleaning liquid.

The invention provides an expansion-type rotatable tail pipe hanger and belongs to the field of oil gas well fixation. The expansion-type rotatable tail pipe hanger comprises a hanger body and a feeding tool system, wherein the hanger body is an expandable metal tubing, a group of triangle-shaped annular protrusions are formed on the outer surface of an expansion section of the hanger body, annular rubber sections are vulcanized between every two adjacent triangle-shaped annular protrusions, and the diameter of each annular rubber section is larger than the outer diameter of top portion of each triangle-shaped annular protrusion. Rotation of a tail pipe can be realized, tripping-in capability and cement slurry displacement efficiency of the tail pipe are improved, sit-hanging and seal-separating functions of the hanger are realized via a hydraulic expansion hanger body. By the aid of the expansion-type rotatable tail pipe hanger, construction requirements on tail pipe cementation of an oil gas well can be met, and the technical difficulties like complex structure, many potential construction safety hazards and hardness in guaranteeing well cementation quality of a slip-type hanger are overcome. Operation process is simplified, tail pipe cementation quality is improved, risk is reduced, and cost is saved.

The invention discloses a rainwater pollutant interception well adopting cyclone separation. The well comprises a shaft and is characterized in that a cyclone unit and a precipitation unit positioned under the cyclone unit are arranged in the shaft; the cyclone unit comprises a cyclone cylinder and an inner cylinder arranged in the cyclone cylinder; outer annular spaces for rainwater to pass through in a cyclone manner are reserved at intervals between the cyclone cylinder and the shaft; a water inlet pipe communicated with the outer annular spaces is connected to the shaft; inner annular spaces for the rainwater to pass through in the cyclone manner are reserved at intervals between the inner cylinder and the cyclone cylinder; a water outlet pipe communicated with the inner annular spaces is connected to the cyclone cylinder; and the precipitation unit comprises a funnel arranged below the inner cylinder and fixed with the inner wall of the shaft, and a storage tank positioned below the funnel. According to the well, the effect of separating pollutants in the rainwater is achieved through centrifugal force generated by a cyclone effect; and the well serving as a rainwater pretreatment device can greatly reduce the pollutants flowing into river channels to ensure the unobstruction of a downstream pipe network.

The invention discloses a mobile terminal, which comprises a case and a loudspeaker arranged on the case, wherein the loudspeaker produces sound through driving the case to vibrate, and comprises a piezoelectric loudspeaker. The mobile terminal has the advantages that the loudspeaker is arranged on the case of the mobile terminal and produces the sound through driving the case to vibrate, the traditional loudspeaker and the vibrator are replaced, parts are reduced, the material cost and the assembly cost are reduced, the production cost is further reduced, and in addition, the mobile terminal can be lighter and thinner.

A floating regulating mechanism for the female mould of powder shaper is composed of a regulator consisting of the regulating rod with driven gear, lower pressing rod, gear shaft with driven bevel gear and drive gear, the drive shaft with main chain wheel and drive bevel gear and gear holder, a drive unit consisting of drive shaft and power source, two stop block boxes with warm axles having chain wheels, and another drive chain. Its advantages are synchronous regulation and long service life.

The invention discloses a speed changing bridge which comprises an axle housing and an integral transmission system arranged in the axle housing, wherein the integral transmission system comprises a power input shaft, a gear shifting device and a differential mechanism which are sequentially connected by gears; and output ends at the two sides of the differential mechanism are respectively connected with a power output device. The speed changing bridge integrates a speed changing box, a transmission shaft and a drive axle into a whole, and the transmission system has the functions of changing speed, transmitting power and driving, so that the speed changing bridge has the advantages of being simple and compact in structure, fewer in parts, low in cost, smaller in occupied mounting space, short in power transmission route and high in transmission efficiency.

The invention discloses a vibration energy recovering device. The vibration energy recovering device comprises a vibration receiving device and an energy feedback device, wherein the vibration receiving device can be a damper or a hydraulic cylinder; the energy feedback device comprises a hydraulic loop, a one-way valve system and a hydraulic motor; two main branches of the hydraulic loop are connected with different cavities of the vibration receiving device respectively; two parallel hydraulic branches are connected in series with one-way valves and hydraulic motors respectively; the one-way valves are arranged oppositely in order that the two branches only generate opposite fluid flow in a single direction. According to the working principle, a piston assembly rod of the vibration receiving device (1) is used for receiving external vibration; the piston assembly rod and a cylinder block perform generate relative movement; pressure is generated in the cylinder, and hydraulic oil flows into the energy feedback device (2); when a second cavity (14) is compressed, a first one-way valve (220) is switched on, and a first hydraulic motor (222) works; when a second cavity (10) is compressed, a second one-way valve (240) is switched on, and a second hydraulic motor (242) works. The vibration energy recovering device is simple in structure, and has high reliability; energy of movement in two directions during vibration can be efficiently recovered, and a damping effect is achieved.

The invention discloses a self-cleaning sprinkler. The self-cleaning sprinkler comprises a main body (5) and a water outlet panel (10) buckled with each other; an accommodating cavity (12) is formed between the main body (5) and the water outlet panel (10); a needle plate (9) is arranged in the accommodating cavity (12) above the water outlet panel; a dirt removing needle (9-2) is arranged on the needle plate (9); a water pressure cavity (9-4) is formed in the needle plate (9), and is provided with a water inlet hole (9-9) and a water overflowing hole (9-8); a water stopper (10-3) is arranged in the water pressure cavity (9-4) in a sliding manner; the needle plate (9) has an initial position and a water outlet position corresponding to the water outlet panel (10); in the initial position, the dirt removing needle of the needle plate is inserted in the water outlet hole of the water outlet panel, and the water overflowing hole is closed by the water stopper; and in the water outlet position, the dirt removing needle of the needle plate is upwards separated from the water outlet hole of the water outlet panel, and the water overflowing hole (9-8) is separated from the water stopper. The self-cleaning sprinkler can autonomously remove dirt.

The invention discloses a device with an automatic drawer. The device comprises a device body, the automatic drawer and a first driving mechanism; the automatic drawer comprises a drawer frame and a drawer body, the drawer body is liftably arranged on the drawer frame, and the drawer frame is slidably arranged on the device body to drive the drawer body to slide in or slide out of the device body;the first driving mechanism comprises a first sliding piece, a first connecting rod assembly and a driving piece for driving the first sliding piece to slide, and the first sliding piece can be slidably arranged on the device body in the sliding direction of the drawer frame and connected with the driving piece; the first connecting rod assembly is connected with the first sliding piece and the drawer body, so that along with sliding of the first sliding piece in the direction, sliding out of the device body, of the drawer body, the drawer body is linked to slide out of the device body and lift, and along with sliding of the first sliding piece in the direction, sliding into the device body, of the drawer body, the drawer body is linked to fall and slide into the device body. According tothe device, the automatic drawer can be driven to move simply through one driving piece, thus the cost is reduced, few parts are needed as a whole, the structure is simpler accordingly, and assemblyis facilitated.

The invention discloses a special small self-priming lock for a mini car tail door, which is specially mounted on a car frame of the mini car tail door. According to the self-priming lock, a steel wire rope for locking the car door passes through a gap 23 between a sliding block 3 and a coupling piece 5 and then passes through a reset spring 4, and the head of the steel wire rope is clamped on a steel wire rope head buckling opening 331. In the using process, after the car tail door is tightly put on a car body, a buckling hook on the tail door is automatically hooked on a lock hook 12; after a door sensor of a mini car feeds back information, a mini car controller controls a motor to pull the steel wire rope, and the steel wire rope is tightened at the same time; the steel wire rope tenses the sliding block 3 to one end, and a lock catch 1 is tensed synchronously; after being tensed, the lock catch 1 firmly tenses the tail door, and therefore the tail door is closed. When the tail door needs to be opened, the motor is controlled through a switch to loosen, so that the steel wire rope gets loose, the sliding block 3 is returned back to the other end through the reset spring 4, the tail door hook is loosened, and at the moment the tail door can be opened.

The invention discloses a foldable stacking cargo tank. The foldable stacking cargo tank comprises a substrate, multiple wallboards and a wrap angle board, wherein multiple seat legs which are used for supporting the substrate are arranged under the substrate, the wrap angle board is fixedly arranged on the substrate, the wallboards are totally hinged with the wrap angle board through bolts, so that containing space can be commonly formed by the wallboards and the substrate when the wallboards are erected, and the bolts are simultaneously used as rotating shafts of the wallboards. The foldable stacking cargo tank disclosed by the invention has the advantages of simple structure and high safety factor.

The invention discloses a cooking utensil, which comprises a pot body, a pot cover, a locking cover, an uncovering mechanism and a locking mechanism, wherein the pot body is used for accommodating cooked foods and a first hook is arranged in the pot body; the pot cover is arranged on the pot body in a rotatable mode, and a second hook, which is mutually matched with the first hook, is arranged between the pot body and the pot cover; the locking cover is arranged on the pot cover body; when the pot cover covers the pot body, the locking cover has a first locking position that the pot cover is fixed to the pot body and a first unlocking position that the pot cover is separated from the pot body; by virtue of the uncovering mechanism, the locking cover can be driven to switch between the first locking position and the first unlocking position; and the locking mechanism has a second locking position and a second unlocking position. According to the technical scheme, the problem in the prior art that a cooking utensil, which is complex in structure of an uncovering and self-locking structure, is not beneficial for rotation and assembling of the mechanism can be solved.

The invention provides a rubber-tired container gantry crane and a steering device thereof. The steering device is characterized in that the device comprises a cart equalizer bar, a left supporting cart frame, a right supporting cart frame, pivoting supports and a push rod which can move in two directions; left wheels are arranged below the left supporting cart frame; right wheels are arranged below the right supporting cart frame; the left supporting cart frame is provided with an area allowing a pin roll connection; the left supporting cart frame and the right supporting cart frame are connected to the cart equalizer bar through the pivoting supports; one end of the push rod is connected to a pin roll of the left supporting cart frame and the other end of the push rod is connected to a pin roll of the right supporting cart frame; and the two ends of the push rod move in the same direction to drive the left supporting cart frame and the right supporting cart frame to rotate in the same direction. The steering device realizes a direction change without a lifting-up structure, does not need a connecting rod and its associated parts, has the advantages of less parts, light quality and compact structure.

The invention relates to an automobile seat slide, which comprises an unlocking bar (1), a lower slide (3), an upper slide (4), a locking plate (2), a slide foot (5), a rivet (6), an unlocking spring (7), a locking spring (8), a connecting rod (9), a bolt (10), a locking plate support (11), a ball (13) and a holder (12). The unlocking bar is upwards lifted, the locking plate (2) is driven to upwards move through the a lever drive and is separated from the lower slide (3), so that the relative motion between the upper slide (4) and the lower slide (3) is realized and the sliding of the a seat in the an automobile is formed. Multiple parts of the slide provided by the invention can be shared, so that the parts are few; furthermore, the automobile seat slide is simple in structure and convenient to assemble; and in addition, the regulating step pitch between the front and rear positions of the seat is only 7.5mm and can meet fine adjustment requirements of a driver between the front and rear positions of the seat, so that the riding comfort is greatly improved.

The invention discloses a locking mechanism with a self-return function. The locking mechanism with the self-return function comprises a motor, a worm, a worm gear, a pawl, a lock-tongue, a pawl torsional spring, a lock-tongue torsional spring, a lock-tongue rivet, a pawl rivet and a rotating shaft; the lock-tongue is rotatably installed on the lock-tongue rivet and is provided with the lock-tongue torsional spring on the lock-tongue rivet in a sleeving mode, and the side face of the lock-tongue is provided with a limiting groove; the pawl is rotatably installed on the pawl rivet and is provided with the pawl torsional spring on the pawl rivet in a sleeving mode, the pawl rivet is located at the first end of the pawl, the side face of the pawl is provided with buckles matched with the limiting groove, the buckles and the limiting groove are oppositely arranged, and the second end of the pawl is provided with protruding blocks; the worm is rotatably installed on the rotating shaft, and buffering blocks matched with the protruding blocks are arranged on the worm gear; the worm is arranged on an output shaft of the motor, and the worm is meshed with the worm gear. By means of the locking mechanism with the self-return function, the number of spare parts is reduced, and the production cost is effectively reduced.

The invention relates to a washing and draining integrated pump which comprises a power device, a washing pump, a drain pump, a washing pump water inlet chamber and a drain pump water inlet chamber, wherein the power device comprises a motor shell, a motor and a motor shaft extending out of the motor shell; the washing pump comprises a washing pump shell, a washing pump cavity, a washing impeller and a washing water outlet; the drain pump comprises a drain pump shell, a drain pump cavity, a drain impeller and a drain outlet; the washing pump water inlet chamber is communicated with the washing pump cavity and is provided with a washing water inlet; the drain pump water inlet chamber is communicated with the drain pump cavity and is provided with a drain inlet; the motor shaft passes through the washing impeller and the drain impeller and can drive the washing impeller and the drain impeller to rotate; a crushing blade is arranged on the motor shaft and food residues are firstly crushed during draining. According to the washing and draining integrated pump, the quantity of parts and the occupied space are reduced; the cost is reduced; integration is improved; and through the functions of crushing and discharging crushed residues during draining, the problem that a user needs to clean a filter net is solved and the user experience is improved.

The invention discloses an automatic anti-folding device for a tractor-semitrailer. The device comprises a cam drum type brake (11), a crank connecting rod mechanism and a control system, when four conditions, namely a vehicle speed, a rotation angle of a steering wheel, a rotation angle of a fifth wheel and a position of a brake pedal, meet corresponding conditions simultaneously, the control system transmits a brake command to a brake solenoid valve (K1), the relative rotation between a tractor (4) and a semitrailer (5) is restrained by the cam drum type brake 11 and the crank connecting rod mechanism, and the folding is prevented during brake; and the device can adjust the length of a combined connecting rod (22) so as to adapt to different types of tractors or mounting positions and be convenient to maintain and replace. The device can be applied to various tractor-semitrailers, and is used for preventing folding the semitrailer (5) caused by inertia due to braking deceleration oremergency braking during high-speed running.

A deadend assembly for anchoring a wire to a support includes a yoke having a base. An opening through the base of the yoke receives a wire receiving device and a first bail. First and second opposing hooks on the base receive a second bail. The second bail is removable to facilitate installation of additional deadend assemblies.

The invention discloses an automobile heat pump heating system and method combining a battery cooler and motor waste heat, which belong to the technical field of automobile air conditioners. The system comprises a compressor, a water-cooled condenser, an external condenser, a battery cooler and a gas-liquid separator, wherein the compressor is respectively connected with the water-cooled condenserand the gas-liquid separator; a first stop valve and a first electronic expansion valve which are arranged in parallel are arranged between the water-cooled condenser and the external condenser; theexternal condenser is connected with the gas-liquid separator through a fourth stop valve; the external condenser is further connected with the gas-liquid separator through a third stop valve, a firstthermostatic expansion valve and a battery cooler which are sequentially arranged; and the water-cooled condenser is further connected between the third stop valve and the first thermostatic expansion valve through a fifth stop valve. By adopting the battery cooler and utilizing the waste heat of the motor, the heating performance of the heat pump can be improved, the heat pump can be used for defrosting an external condenser, parts are reduced, the system is simpler, the layout is more compact, the control process is simplified, and the cost is reduced.

The invention discloses a lubricating method and a lubricating structure of a four-stroke gasoline engine. Pressure generated by downward movement of a piston inside a crankcase coordinates with a crankshaft and structural movement of the crankshaft to atomize lubricating oil, pressure difference between the crankcase, a gas-oil separating chamber and a valve chamber is employed to make oil mist enter the lubricating travel in order to lubricate associated parts, and an inlet one-way valve and an outlet one-way valve are used for separating oil and gas and returning the lubricating oil. The atomization of the lubricating oil and the lubricating movement of the oil mist are implemented in the same device through two steps of beating and atomization of the lubricating oil and the lubricating movement of the oil mist, which is characterized by simple steps, less parts, low cost and high reliability. A vent hole of the crankshaft is used for ensuring that the lubricating oil can never enter the gas-oil separating chamber whether a motor works or not, and the lubricating structure can continuously and effectively work for more than two hours during 360 degrees turning without flameout and smoking.

The invention relates to a modularized biomimetic robotic dolphin push mechanism which comprises a framework, a direct-current motor, a transmission gear fixed, a pinion, a spindle, a set of crank and slide block mechanism and a set of gear rack mechanism, wherein the framework is fixed at one side of the framework; the transmission gear is fixed on an output shaft of the direct-current motor; the pinion is engaged with the transmission gear; the spindle is fixed with the pinion; the set of crank and slide block mechanism is driven by the spindle; and the set of gear rack mechanism is driven by a slide block in the crank and slide block mechanism. With the adoption of the modularized biomimetic robotic dolphin push mechanism, typical back abdominal type fluctuation motions of a dolphin are simulated through controlling the direct-current motor, the flapping motions of the robotic dolphin can be realized by relying on the one-way rotation of the direct-current motor, and the swinging frequency of the robotic dolphin is regulated through changing the rotation speed of the motor. The modularized biomimetic robotic dolphin push mechanism has the advantages of simple structure and lighter weight, is not only easily connected in series to form a multi-joint robotic dolphin tail flapping mechanism so as to realize the back abdominal type motions on a vertical surface, but also can be used as a push mechanism of a robotic fish to realize lateral swinging, and self gravity is not needed to be overcome during simulating the fish to swim, so that the power loss can be reduced.

The invention discloses an overrunning clutch. The overrunning clutch comprises a gear, a one-way bearing and a one-way limiting spiral cam, wherein the outer diameter of the one-way bearing is matched with the inner diameter of the gear, and the inner diameter is matched with the outer diameter of the one-way limiting spiral cam. The invention further discloses a self-adaption automatic separation drive assembly; and the self-adaption automatic separation drive assembly comprises a box body, a main shaft, a gear base, a clutch assembly, a first-grade gear, a transmission unit and the overrunning clutch. The overrunning clutch is assembled by three parts as the gear, the one-way bearing and the one-way limiting spiral cam, finishes the effects of one-way gear transmission and spiral thrust limitation, and has such advantages as few parts, small size, convenience for assembly, stable mechanical performance and low cost. On the one hand, the self-adaption automatic separation drive assembly can adapt to different torque demands of various vehicle types; and on the other hand, the self-adaption automatic separation drive assembly can adjust a torque adjusting nut to butt against a disc spring to achieve the calibrated torque requirement, and has the advantages of simple structure, quick assembly and stable torque value.

The invention discloses a variable-frequency loading intelligent brake testing system and method. The system comprises an installation pedestal, and the installation pedestal is provided with a transmission central shaft, a limiting switch, and a to-be-tested intelligent brake. The transmission central shaft is provided with a braking disc; a motor and an angle coder which are in transmission connection with each other; and a twisting force limiting shaft coupler. The intelligent brake is used for braking a braking disc, and the motor is used for controlling the rotating speed of the transmission central shaft. The angle coder is used for collecting the rotating speed of the shaft. When the braking disc is braked and the generated shaft torque is greater than a limit value, the twisting force limiting shaft coupler generates shaft rotating slipping, and the limiting switch is used for collecting and judging whether the twisting force limiting shaft coupler slips, and an external control end is used for sending a command and giving an alarm. The torque sensor records the size of the torque between the braking disc and the load in the whole testing process. According to the invention, the system solves a problem of how to test the braking performances of the intelligent brake.

The invention discloses a memory alloy calibrating lock, wherein one end of a memory alloy spring extends from a small hole at the bottom of a sleeve and is fixed by a screw at one side, and the other end is fixed on a limiting block and extends out of the side of the sleeve. A memory alloy wire outside the sleeve is provided with a heat-shrinkable sleeve and connected with leads of a control circuit through a pressure welding way. One end of a metal shaft is fixed on the limiting block and the other end is connected with a soft rope. The calibrating lock has the characteristics of small volume, light weight, simple structure and high reliability. When the calibrating device realizes the locking or the unlocking by the memory alloy calibrating lock, the assembly is fixed on a base of the calibrating device through the bolt. The soft rope is straightened for certain time, the metal shaft extends into a locking hole of a swinging rod of the calibrating device, and the spring has no restoring force to complete the locking. The control circuit electrifies the memory alloy spring when unlocking is needed, the spring restores the original shape of the memory after the phase-transition temperature is achieved, and the metal shaft is driven to retract towards the inner side of the sleeve so as to disengage from the locking hole of the swinging rod to realize the unlocking.