62results about How to "Smooth power delivery" patented technology

The invention relates to the field of mine operation, in particular to a diamond drilling tool with a fixed buffer mechanism. Comprising a drill rod and a drill bit coaxially arranged with the drill rod, and further comprises a rotating shaft, the turntable is fixedly connected with one end of the drill close to the drill rod; the clamping shaft is in coaxial key connection with the turntable; an input shaft of the magnetic coupler is fixedly connected with the rotating shaft, and an output shaft is fixedly connected with the clamping shaft; the buffering adjustable mechanism is arranged on the side, close to the rotating disc, of the rotating shaft and comprises a tension adjusting mechanism and a plurality of buffering tension springs, the tension adjusting mechanism is connected with the end, away from the drill bit, of the rotating disc and is in transmission connection with an input shaft of the magnetic coupler, and the buffering tension springs are arranged in the circumferential direction of the rotating disc at equal angles; the tension adjusting mechanism adjusts the tension of the plurality of buffer tension springs during operation; the reset mechanism is arranged at the end, close to the rotating shaft, of the rotating disc, is in transmission connection with the tension adjusting mechanism and drives the magnetic coupler to reset when the drill bit is separated from the ore.

The invention relates to the technical field of forge piece machining, and particularly discloses a forge piece machining device which comprises a workbench, an auxiliary mechanism and a driving mechanism. A base is fixedly installed on the end face of the workbench, a motor is fixedly installed on the surface of the base, and the output end of the motor is fixedly connected with a grinding wheel. And the auxiliary mechanism is used for carrying out dust falling treatment on dust generated when the forge piece is polished by the grinding wheel, the auxiliary mechanism comprises a water tank installed on the end face of the workbench, the side wall of the water tank is fixedly connected with a rectangular plate, the end face of the rectangular plate is fixedly connected with two vertical blocks, and the surfaces of the two vertical blocks are fixedly connected with round rods. According to the device, the atomization spray head, the protection plate, the insertion hole and the insertion rod are arranged, water mist can be sprayed out in the grinding process by means of the atomization spray head, then dust generated in the grinding process is atomized, the dust falling effect is achieved, and splashing dust and splashing water stains can be blocked by means of the protection plate.

The novel beacon vessel comprises a base and further comprises a water flow power generation device and a solar power generation device which are installed on the base, the base is arranged to be cylindrical, a notch is formed in the middle of the base, an impeller of the water flow power generation device overhangs in the notch to rotate, and the cylindrical base rotates in real time in the water flow direction. A solar power generation device is mounted on the top surface of the base at the rear part of the notch, and is provided with a foldable turnover mechanism, so that a solar panel of the solar power generation device is always positioned at the optimal sunlight receiving angle; multi-source power generation is achieved through the water flow power generation device and the solar power generation device, redundant electric energy is stored for standby application and delivery while power is supplied to the beacon light and other electric equipment on the device, real-time data acquisition is achieved through the camera and the light induction sensor, and the device is simple and compact in structure, reliable in operation, low in cost, convenient to install and high in practicability. Power generation is stable and efficiency is high.

The utility model relates to moxa stick processing technical field, concretely is a kind of cutting device for moxa stick processing, including base, fixed mounting is equipped with fixed frame on the base upper surface, work, first moxa stick is placed in the inside of curved groove one of bearing platform surface, before cutting, push cover plate, and the curved block under cover plate slides in curved groove one, moxa stick is pushed to specified cutting position, hand wheel is rotated to drive threaded lead screw rotation, threaded lead screw drives fixed link to move down, using the cooperation of curved groove two and curved groove one, moxa stick is firmly fixed, then, through handle lever, lever drives mandrel and gear rotation, gear engages driven wheel, makes driven wheel rotate, and further drive inclined tooth bar to make inclined motion along the track of sliding slot one, since inclined tooth bar is fixedly connected with cutter bar, and inclined lever is guided by the sliding cooperation of sliding slot two and convex shaft two, cutter bar drives cutting knife to realize up-down cutting action, complete a cutting process, so circulate, realize the continuous accurate cutting of moxa stick.

The present invention discloses a wheel hub pressure test bench, which belongs to the technical field of electric vehicles. It comprises: a crossbeam; a thrust assembly fixed on the lower side of the crossbeam, and the moving end of the thrust assembly is arranged downward; a lifting seat fixed on the moving end of the thrust assembly; a left support rod and a right support rod are vertically slidably installed on the lifting seat; a ball joint assembly is installed at the lower end of the left support rod and the right support rod, and a mounting hole is provided on the ball joint assembly; a power box is fixed on the lifting seat, and is used to drive the left support rod and the right support rod to slide in the same speed and in the opposite direction; one end of the connecting piece is fixedly connected to the end of the rotating shaft of the wheel hub, and the other end is installed in the mounting hole on the ball joint assembly. The present invention can provide stable support and precise inclination angle control for the wheel hub pressure test, apply controllable loads, simulate dynamic inclination angle changes, complete the pressure test at one time, and improve the test efficiency; it can realize the rapid installation of the wheel hub, allow angle adjustment, adapt to slight deformation, and improve the test safety.

The application discloses an automatic Blaine viscosity detection device for water-based color paste production, comprising a Blaine viscosity detection controller, and relates to the technical field of water-based color paste detection. The automatic Blaine viscosity detection device for water-based color paste production can stably realize double-mode free switching of multi-sample synchronous detection and single-sample multi-point detection, comprehensively improves detection efficiency and data reliability, and is equipped with a detection frame mechanism and three independent torque sensors, can simultaneously detect three kinds of water-based color paste in parallel, shortens batch detection time, can realize three-point synchronous detection in the same sample cylinder, effectively avoids random errors caused by single-point detection, and can guarantee synchronous rotation of three rotors, stably and efficiently transmits power, and can fully meet the diversified viscosity detection requirements in water-based color paste production.

The invention discloses a magnetic wave making machine body structure which comprises a machine body assembly, the machine body assembly comprises an upper supporting frame, the middle of the upper supporting frame is rotationally connected with a wave pushing plate through a rotating assembly, magnetic power driving devices are arranged on the two sides of the upper supporting frame, and therefore the machine body assembly moves along an induction plate; the rotating assembly comprises paired rotating mechanisms, the paired rotating mechanisms are connected to the lower supporting frame and located on the back face of the wave pushing plate, the output ends of the rotating mechanisms are connected with the wave pushing plate, and when the output directions of the rotating mechanisms are opposite, the posture of the wave pushing plate is changed; the upper supporting frame provides a stable supporting point for the wave pushing plate, and flexible rotation is guaranteed to generate various wave forms. The paired rotating mechanisms can accurately control the wave pushing plate to move, vivid sea waves can be simulated, lateral force can be overcome in an auxiliary mode to prevent the machine body from inclining, and therefore the driving problem of traditional wave making equipment is solved, the magnetic power application blank is filled up, and the wave making machine performance and user experience are improved.

The utility model discloses a double-clamping turnover device for a carrier, which belongs to the technical field of automation equipment and comprises a vertical plate, a supporting bottom plate is fixedly connected to the bottom of the front side of the vertical plate, a reinforcing rib is fixed between the vertical plate and the supporting bottom plate, and a turnover module is mounted at the rear end of the middle of the supporting bottom plate. By means of the modular design, rapid clamping, multi-angle overturning and accurate positioning of a carrier are achieved, meanwhile, the multi-angle overturning device is suitable for workpieces of different specifications, the flexibility of a production line is improved, the production efficiency is improved, the production cost is reduced, and the production efficiency is improved. And the production efficiency is improved.

The invention discloses a multi-group cutting knife device for a mower, which realizes efficient transmission of power and improvement of mowing efficiency by integrating a plurality of cutterhead seat assemblies, a transition gear set and a power input assembly. The power input assembly is responsible for receiving power of an output shaft of a gearbox and transmitting the power to the multiple cutter head seat assemblies through the transition gear set. The cutterhead seat assembly is responsible for installing a cutting disc to complete mowing operation. In order to improve the stability and durability of the structure, each component is supported and fixed by adopting a bearing and a bearing seat. And meanwhile, the mounting box adopts a sealing design, so that dust, water and other impurities are effectively prevented from invading. The device has the advantages of being efficient in transmission, stable in structure, convenient to maintain, high in adaptability, safe, reliable and the like, and powerful support is provided for garden and agricultural mechanization.

The utility model discloses a kind of feeding mechanism of intermediate frequency electric furnace, it is related to the technical field of intermediate frequency electric furnace auxiliary equipment.The mechanism includes base plate and the universal wheel being set to the bottom of base plate, support plate and inclined bracing plate are equipped on base plate;Inclined bracing plate is equipped with inclined transmission assembly, the component includes driving gear shaft, driven gear shaft and the tooth transmission belt of meshing transmission, several transmission plates are equipped with on tooth transmission belt surface interval;Horizontal transmission assembly is further equipped on base plate in the feed inlet of inclined transmission assembly, and horizontal transmission assembly includes support seat and first conveyor belt.The utility model is conveyed by horizontal conveyor belt and tooth transmission belt with transmission plate relay, not only realizes the automatic conveying of material from low to high furnace mouth, and utilizes gear meshing transmission to avoid heavy load skidding, cooperate transmission plate effectively prevent the rolling phenomenon of irregular heavy material such as scrap steel in the process of inclined lifting, substantially improve the safety and efficiency of feeding.

The utility model provides a hardware processing buffer fixing device belongs to hardware processing technical field, this hardware processing buffer fixing device, including base and base surface integral fabrication shaping has T shape frame, its characterized in that: T shape frame top inside passes through fixed column I and is installed with double -end telescopic cylinder, and both sides pass through two fixed columns II and are articulated with two clamping arms, and two telescopic ends of double -end telescopic cylinder are articulated with two clamping arms outer ends respectively through two articulated components, and two clamping arms inner ends are respectively equipped with two clamping components, and two clamping components outer walls are equipped with two buffer components respectively, and two buffer components are respectively with two clamping arms inner surface and are pasted, wherein, through double -end telescopic cylinder drive two clamping arms hammer end's two clamping components and two buffer components, can effectively solve the problem that the traditional fixing device clamping force is too big, very easily leads to hardware to appear deformation, scratch, indentation and so on damage.

The application discloses a detachable connecting device and an aircraft, and aims to improve the disassembly and assembly efficiency. The detachable connecting device is used for detachably connecting a first component and a second component, and comprises a locking mechanism and a linkage mechanism which are interlocked; the locking mechanism is used for cooperating with a locking groove arranged on the first component, the linkage mechanism is used for being fixedly connected with the second component, and the locking mechanism can be locked or separated from the locking groove under the drive of the linkage mechanism. In use, the detachable connecting device is preassembled on the second component. When the first component and the second component are assembled, the linkage mechanism is only needed to be operated, so that the locking mechanism is driven to be locked with the locking groove, the detachable connection between the first component and the second component is realized; when the first component and the second component are disassembled, the linkage mechanism is only needed to be operated, so that the locking mechanism is separated from the locking groove, and the separation between the first component and the second component is realized. The device omits the cumbersome steps of disassembling and assembling multiple fasteners one by one, significantly shortens the disassembly and assembly time, and effectively improves the disassembly and assembly efficiency.

The utility model provides an anti-impact electric cylinder, which belongs to the technical field of engineering machinery and comprises a lead screw pair mounted in an outer pipe, a lead screw in the lead screw pair is driven by a servo motor to rotate, the lead screw drives a nut to do reciprocating rectilinear motion along the surface of the lead screw when rotating, a connecting pipe is fixed at the upper end of the nut, and a push rod is sleeved at the upper end of the lead screw. The push rod is matched with an extension block at the upper end of the connecting pipe in a hooking and pulling mode, the surface of the connecting pipe is sleeved with a compression spring, the upper end of the compression spring makes contact with the lower end face of the push rod, and when the nut pushes the push rod to do forward linear movement through the compression spring, impact energy can be absorbed and converted into elastic potential energy; direct damage of impact to core components such as a lead screw pair and a gear pair is effectively reduced, component failure caused by impact is avoided, and the service life of the electric cylinder under the high-impact working condition is remarkably prolonged.

The present invention discloses a vehicle clutch electric control system composed of an electric control switch and a clutch electric device, belonging to the technical field of vehicle clutch systems, comprising a gear lever and a clutch electric device, wherein a ball head is installed on the top of the gear lever, the top of the gear lever is covered with a covering software, an inner electrode contact is installed on one side of the gear lever, the bottom of the gear lever is paved with an electric control switch wire and is electrically connected to the clutch electric device through the electric control switch wire, the outer electrode contact is pressed to contact the inner electrode contact so that the circuit of the electric control switch wire is connected, the driving motor is driven to drive the vehicle's clutch plug-in push rod to generate an action to separate the clutch, and the driver can operate it. Compared with the traditional gear shifting method, the system solves the problems of complex clutch pedal operation, high driving labor intensity and poor comfort of manual transmission vehicles, while retaining the characteristics of fuel saving, economy, free takeover at any time, smooth power output and manual driving pleasure.

The present application belongs to the technical field of emulsification mixing equipment, and discloses a bidirectional stirring emulsification mixing device, which comprises a frame body, two groups of communicating emulsification boxes are arranged in the frame body, a feeding port is formed in the upper portion of the emulsification box, a transmission device is fixedly arranged on the upper portion of the emulsification device, a feeding groove is formed in the communicating position of the emulsification device, a shearing device connected with the transmission device is arranged at the position of the feeding groove, a reverse stirring device is arranged below the shearing device, forward stirring devices connected with the transmission device are arranged in the emulsification device, and a matching mixing device is arranged above the mixing device. The problems of single stirring direction, existence of dead angle, uneven mixing of raw materials, and insufficient utilization of the bottom raw material deposition are solved, and the emulsification mixing effect and production efficiency are improved.

The application relates to the technical field of household appliances, and discloses a cleaning brush and a control method thereof. The cleaning brush comprises a main machine, a handle and a machine head. The machine head is connected with the main machine and comprises a water tank and brush hairs. Cleaning medium is arranged in the water tank, and the brush hairs are arranged at the bottom of the water tank. An atomizing water spraying device is arranged at the bottom of the water tank and communicates with the inside of the water tank. The other end of the atomizing water spraying device is provided with a nozzle. The atomizing water spraying device is used for atomizing the cleaning medium and spraying the atomized cleaning medium to a surface to be cleaned and the brush hairs. Compared with the related art, the water tank and the atomizing water spraying device are integrated in the brush head, so that an additional handheld water pipe, a shower for humidification or frequent wetting of the brush hairs is not needed, the cleaning operation process is simplified, and the use convenience is remarkably improved.

The utility model relates to a power switching device for reduction gearbox, including the reduction gearbox body, the bevel gear box body, the clutch box body and motor from left to right set gradually, the input shaft in the reduction gearbox body enters the clutch box body through the bevel gear box body, the input shaft is supported in the bevel gear box body through the bearing, the clutch box body is built -in shift fork clutch, the shift fork clutch is equipped with axial limiting mechanism, the input shaft connects auxiliary power mechanism, the auxiliary power mechanism sets up on the bevel gear box body, the auxiliary power mechanism includes hand wheel axle, hand wheel driving bevel gear and passive bevel gear, and hand wheel axle rotation sets up on the bevel gear box body, one end of hand wheel axle that stretches into the bevel gear box body is connected hand wheel driving bevel gear, and the input shaft is equipped with passive bevel gear corresponding hand wheel driving bevel gear. The utility model under the condition of power failure or motor trouble, shift fork clutch uncouples, and hand wheel axle connects other power drive a pair of bevel gears and drives input shaft rotation, and makes the reduction machine normal operation through auxiliary power.

The invention discloses a device and a method for regulating and controlling the spraying angle of a tobacco primary processing, leaf moistening, perfuming and charging atomizing nozzle, and belongs to the technical field of automatic control of tobacco primary processing equipment. The invention aims to solve the problems of poor accuracy, low consistency and serious raw material waste of manual nozzle angle adjustment and insufficient degree of freedom of an existing automatic adjustment device. The device comprises a regulation and control motor unit which is externally arranged on the outer side of a cylinder wall and comprises a first motor and a second motor; the angle adjustment execution unit is arranged in the cylinder and comprises a worm and gear assembly and a pitching adjustment shaft; the power transmission unit penetrates through the cylinder wall and comprises a first transmission shaft and a second transmission shaft. The first motor drives the worm and gear assembly to drive the nozzle to horizontally rotate, and the second motor drives the pitching adjusting shaft to drive the nozzle to vertically pitch. The invention further discloses a corresponding regulation and control method. The two-degree-of-freedom reliable automatic adjustment of the nozzle is realized, the adhesion uniformity of a medium is improved, and the waste of raw materials and auxiliary materials is reduced.

The utility model relates to the technical field of wire core cabling positioning device, concretely relates to a positioning device for wire core cabling, including support seat, the lateral wall of support seat is fixedly connected with motor through support, the output fixedly connected with pivot of motor, the lateral wall of support seat is rotatably connected through the bearing of pivot, the top of support seat is equipped with no. The lateral wall fixedly connected with connecting column of no. The lateral wall fixedly connected with no. The utility model discloses through the positioning assembly of setting, can realize accurate positioning to different diameter wire core, is favorable to the versatility and reliability of positioning, through the adjusting assembly of setting, can provide stable power transmission for tension assembly, through the setting of tension assembly, can flexibly adjust the tension when wire core cabling, to guarantee wire core stranding even, improve the cabling quality of cable.

The utility model relates to the technical field of automobile mechanical equipment, concretely relates to a kind of electric front and rear adjusting headrest mechanism of automobile seat, including, middle shell mechanism assembly, including middle shell and two headrest rods in the middle shell being arranged;Shell assembly is movably sleeved on the outside of middle shell along front and rear direction, and the bottom of shell assembly is equipped with opening;Adjusting drive assembly, including, screw rod nut cylinder, it is arranged in middle shell, and its axis extends along front and rear direction;Motor screw rod, rotationally arranged in shell assembly and with screw rod nut cylinder coaxial screw connection;Motor, it is arranged in the inner wall of shell assembly, and its output shaft is connected with motor screw rod transmission;By the transmission mechanism is completely integrated in headrest interior, adopt screw rod nut transmission cooperation sliding guide structure, realize compact structure design, solve the problem that electric headrest adjusting mechanism in the prior art is arranged in seat backrest and occupies space, influence other functional mechanism arrangement, or headrest mechanism is complex, bulky, poor applicability.

This invention discloses a non-contact ship bottom cleaning machine based on pulse cavitation technology, comprising a mounting frame with a sealed box, inside which are pulse cavitation generation equipment and control equipment. Two drive wheels are fitted with transmission belts, the outer walls of which are fixed with permanent magnets. A drive mechanism for rotating a drive shaft is installed inside the sealed box. A mounting plate is mounted on the mounting frame, and multiple sets of dirt guiding mechanisms are installed on the mounting plate. This invention effectively solves the core technical bottlenecks of existing pulse cavitation cleaning robots, achieving integrated operation of non-contact, high-efficiency ship bottom cleaning and simultaneous dirt collection. It retains the advantages of pulse cavitation technology—high cleaning efficiency, no secondary damage, and environmental friendliness—while avoiding the impact of dirt diffusion on the moving mechanism, thus improving the machine's mobility and operational stability.

The utility model provides a kind of chain type mini-tiller belongs to agricultural machinery technical field, for solving the technical problem that existing technology in soil debris invades sprocket chain and leads to transmission jam, wear aggravation. Including: rack shell, engine is set on rack shell upper end, the closed lower end of rack shell and inside is equipped with sprocket accommodating cavity, sprocket accommodating cavity both sides are equipped with shaft hole;Rotary tillage sprocket, rotary tillage sprocket is located in sprocket accommodating cavity, power is transmitted through chain between engine and rotary tillage sprocket, chain is located inside rack shell, the shaft of rotary tillage sprocket is worn out and rotates cooperation from the shaft hole of both sides of rack shell;Still include rotary tillage axle connected to the both ends of rotary tillage sprocket shaft, rotary tillage axle is equipped with rotary tillage blade. It has the technical effect of improving transmission reliability, prolonging equipment service life.

The utility model relates to a stair climbing machine, which belongs to the technical field of stair climbing wheelchairs and comprises a seat part, a walking part and a supporting part. The supporting part is installed at the upper end of the walking part, the seat part is detachably connected with the walking part through the supporting part, the walking part comprises a flat ground walking mechanism and a ladder stand mechanism, the ladder stand mechanism and the flat ground walking mechanism are obliquely arranged from bottom to top at an angle, and the flat ground walking mechanism is used for walking on the flat ground; the flat ground walking mechanism moves to the upper part of the ladder climbing mechanism and is used for the ladder climbing mechanism to climb on stairs; by the adoption of the symmetrically-arranged crawler belt frames and the pair of crawler belts, the stability of the stair climbing machine during stair climbing is enhanced, and the risks of overturning and slipping are reduced; secondly, a crawler motor and a chain transmission system are used, efficient and stable power transmission is achieved, the transmission efficiency of the stair climbing machine is improved, and the service life of the stair climbing machine is prolonged; and meanwhile, the stair climbing machine can adapt to stairs of different specifications through rotating connection of the driving wheels and the crawler belts.

The utility model relates to overturning device technical field, and disclose a kind of overturning device for precision metal structural member processing, the inside of installation shell is provided with installation groove, the inner wall of installation groove is fixedly installed with limit support, the middle groove of limit support is equipped with fixed gear, the two sides inner walls of limit support are respectively oppositely provided with slide rail assembly, the sliding block of slide rail assembly is fixedly connected with connecting plate, one side of two side connecting plates adjacent is respectively provided with rack, fixed gear is respectively and two side racks are interlocked, and the bottom end outside of two side connecting plates is respectively extended to the outside of installation shell and fixedly installed with clamping block, two clamping blocks are on the same horizontal line.The utility model is through the setting of gear, rack and limit support, gear and rack are directly engaged, transmission path is short, and loss is small, limit support prevents meshing clearance change, clamping block movement is stable, and force is even, gear positive and negative rotation adjusts clamping block opening and closing, adapts to different size workpieces, without changing component, reduce cost, improve versatility.

The utility model relates to the technical field of container door body structures, in particular to a vertical three-dimensional container side-by-side combination system. The sliding door comprises a door body structure which is arranged in an up-down opposite opening and closing mode, a driving mechanism and a guiding mechanism are arranged in the middle of the door body structure, and the driving mechanism comprises a driving motor, a transmission shaft and a fixing base; the door body structure is driven by the driving motor to open and close relative to the frame body; the guide mechanism comprises a guide rail and pulleys arranged in the guide rail, a clamping groove matched with the lifting rod of the frame body is reserved in the guide rail, the pulleys are arranged on the inner wall of the clamping groove at intervals, and the pulleys are tightly attached to the lifting rod. According to the utility model, the driving mechanism with the synchronous belt II is additionally arranged on the door body structure, so that the driving power transmission of the large-size door body is stable; meanwhile, a guide mechanism with a pulley is additionally arranged on the back face of the door body, deviation of the door body during vertical opening and closing is avoided, movement is not affected during guiding, opening and closing are smoother, stress is more uniform, and the service life of the guide mechanism is prolonged.

The invention relates to the technical field of oil exploitation, and discloses an oil pipe slideway device for automatic oil well repair, which comprises a mounting rack, an oil pipe conveying mechanism is arranged on the inner wall of the mounting rack, the oil pipe conveying mechanism comprises a mounting block, and the back surface of the mounting block is fixedly connected with the rear end of the inner wall of the mounting rack; a first mounting rod is fixedly mounted at the lower end of the front face of the mounting block, a second mounting rod is fixedly mounted on the right side of the front face of the mounting block, a lifting limiting rod is movably mounted on the inner wall of the mounting block, and a limiting ring is fixedly mounted at the bottom of the lifting limiting rod. According to the oil pipe conveying device, the oil pipe conveying stability and efficiency are improved, through the ingenious mechanism design, automation, stability and high efficiency of oil pipe conveying are achieved, in the oil exploitation process, the workover operation efficiency can be remarkably improved, the risk of manual operation can be reduced, and a powerful guarantee is provided for smooth oil exploitation.

The utility model relates to clutch casing technical field, and disclose a kind of heat dissipation structure of clutch casing, including clutch casing, the left and right two side walls of clutch casing are equipped with heat dissipation countersunk groove, the inside of heat dissipation countersunk groove is communicated with clutch casing, the inside of heat dissipation countersunk groove is equipped with circulating air bellow;The front side wall of circulating air bellow is equipped with circulating air port, the bottom end of circulating air bellow is equipped with exhaust port, and heat dissipation fan assembly is equipped in exhaust port;The heat dissipation countersunk groove of the left and right two side walls of this clutch casing is communicated with internal chamber, and integrated circulating air bellow in groove, form the two-way air flow circulation channel of "left side air intake-casing internal convection-right side air outlet".

The invention relates to the technical field of power transmission, in particular to a power transmission device and a power assembly thereof, the power transmission device comprises a shell, a diaphragm spring, a pressure plate and a crankshaft, and the power transmission device further comprises a transmission plate, a flywheel, a centrifugal driving assembly, a transmission assembly, a flameout prevention assembly and a friction assembly. According to the anti-flameout device, the flameout phenomenon caused by the fact that the clutch is loosened suddenly due to improper operation of a driver during starting of a manual gear automobile is avoided, and specifically, by arranging the anti-flameout assembly, the contact piece and other structures, the anti-flameout assembly can be locked between the transmission disc and the flywheel when the rotating speed of the crankshaft does not reach the specified speed; and the surface of the flameout-preventing assembly and the contact piece are made of materials with low friction coefficients, so that flameout of the engine cannot be caused, when the rotating speed of the crankshaft reaches the specified speed, the flameout-preventing assembly is unlocked and retracts into the flywheel, and at the moment, the transmission disc makes contact with the flywheel to conduct transmission.

The invention discloses a precise cutting device for fresh-cut leaves. The precise cutting device comprises a cutting mechanism, a feeding groove assembly and a feeding mechanism. A power component is arranged on the rear side of the cutting mechanism, a transmission shaft and a cutter head are driven to rotate through belt transmission, the cutter head is located in an inner cavity defined by the discharging hopper and the top cover, a containing component is correspondingly arranged below the discharging hopper, and a protection component is arranged on the outer side of the discharging hopper to protect a transmission structure. The feeding groove assembly is fixed to the front side of the cutting mechanism, air cylinders are arranged on the two sides of the feeding groove assembly and drive a push plate to move through telescopic shafts, and the feeding mechanism is driven. The feeding mechanisms are symmetrically arranged on the two sides of the feeding groove, driving wheels are driven by driving motors to rotate and matched with driven wheels to achieve chain plate transmission, chain plates can make contact with to-be-cut materials, and material conveying and clamping posture keeping are achieved. According to the device, stable conveying and cutting operation of fresh-cut leaves is completed through cooperation of all parts, and the cutting requirements of fresh crops are met.