197results about How to "Improve mechanical efficiency" patented technology

Accommodating intraocular lens (AIOL) assemblies including a discrete pre-assembled monolithic AIOL assemblage and a discrete haptics system having a haptics ring and at least two elongated C-shaped haptics for self-anchoring in a human scleral wall at the ciliary sulcus. The AIOL assemblages include an AIOL capsule and an integrally formed base member. The AIOL assemblages also include an annular haptics support surround posterior to an anterior structure on implantation in a human eye of a supine human. AIOL assemblies are assembled in situ by mounting a haptics system onto a previously implanted AIOL assemblage. The haptics system bears against the annular haptics support surround. The anterior structure is freely telescopically received in the haptics ring.

A peristaltic pump includes a plurality of effecters, actuated in a periodic manner upon by obstructive forces of a flexible infusion tube so as flow of infusion fluid is provided along said infusion tube, the magnitude of the obstructive forces being dependent upon the displacement of said moving effecters; and a plurality of balancing magnets providing balancing forces upon one or all the moving effecters, the balancing forces at each point along the path of motion of the moving effecters being of approximately equal magnitude to that of the obstructive forces at the point; such that the parasitic output due to work performed against the obstructive forces is approximately zero and yield is maximized.

The invention discloses a linear reciprocating motor. The linear reciprocating motor comprises a reciprocating screw rod (4) which is sleeved with a hollow shaft (2), a small round hole is formed in the side wall of the hollow shaft (2), a guide block (3) is placed in the small round hole of the hollow shaft and makes contact with a bidirectional sliding groove of the reciprocating screw rod (4), the hollow shaft (2) provided with the guide block (3) is sleeved with a rotor (1), and the rotor (1) is sleeved with a motor stator. According to the linear reciprocating motor, the guide block is arranged in the small round hole in the hollow shaft arranged outside the reciprocating screw rod in a sleeved mode, then the rotor is arranged uniformly, and after installation is finished, the hollow shaft rotates to drive the guide block to move in the reciprocating screw rod so that front and back linear reciprocating motion of the reciprocating screw rod can be achieved under the action of the guide block. Thus, the linear reciprocating motor can be applied to various occasions needing the reciprocating motion, the number of transmission links is reduced, mechanical efficiency is improved, production cost is reduced, and the linear reciprocating motor is simplified substantially.

A push-pull chain (1) that can bend in one direction only, and is provided with at least two rollers (12,13) on each of the driving pins, one of the rollers (12) engages a drive sprocket (29) and the other of said at least two rollers (13) engages a chain guide surface (28). An actuator (20) for e.g. opening and closing a window that uses this dual-roller push-pull chain. A link (105) driven push-pull chain (101) that can bend in one direction only, with links (105) that is shaped as an engagement surface for engaging a drive sprocket (129). An actuator (120) for e.g. opening and closing a window that uses the link driven push-pull chain.

The invention discloses a continuous feeding device for an electric arc furnace preheated by flue gases. The device comprises a double-duct conveying trough and a flue gas guiding hood; a carrier plate with a flue gas channel is arranged in the middle part of the double-duct conveying trough; a material circulating duct is arranged above the carrier plate, and a flue gas circulating duct is arranged below the carrier plate; a seal gate matched with the upper opening of the lower end of the material circulating duct is arranged on the flue gas guiding hood; the double-duct conveying trough forms a flue gas diffusion heat exchanging mechanism from bottom to top, contact area between materials and high temperature flue gas is enlarged, the stay time of the flue gas is long, and the material preheating effect is greatly improved; as the double-duct conveying trough is arranged in an inclined way, the feeding point is raised, the trough bevel is large, the waste steel material blanking point can easily close to the center high temperature area of the furnace, so that the cold area phenomenon is eliminated; as the diffusion and heat exchange designs are realized, the powder dust in the exhausted flue gases is greatly reduced, the flue gas flowing is more in line with the natural rules, and the problems of exhaust pipe blockage and the like are solved.

The invention relates to a three-dimensional vertical axis rotating driving barrel wall type grooved pulley mechanism that includes grooved component and grooved wheel. The stir groove component of the grooved wheel and the located half arc flute are distributed on the circle of the barrel wall. The diving shaft of the stir groove component, the located half arc and the rotating rocker are fixed together, shifting shaft and the rotating rocker are fixed together. Shaft sleeve is actively installed on the shifting shaft. The rotating axis lines of the stir groove component, the shifting shaft and the grooved wheel are joined at one point in the three-dimensional space. The invention is simple structure, good technical, easy to be machined and reduces the entire volume of the transformer tapping switch.

The invention relates to a launcher of an unmanned aerial vehicle, in particular to a catapult of an unmanned aerial vehicle. According to the technical scheme of the catapult of the flywheel-type high-speed unmanned aerial vehicle, the unmanned aerial vehicle is arranged on a tackle and located at a launching position before being launched, a clutch in a power system is in a disconnected state, a motor drives a flywheel to rotate, and the rotating speed is set according to launching requirements; when the unmanned aerial vehicle is launched, the clutch of the power system is connected, the flywheel drives a winding wheel to rotate, a traction rope is wound into the winding wheel and drives the tackle and the unmanned aerial vehicle to move in an accelerated mode, when the tackle moves to a tackle position sensor, the clutch is controlled to be disconnected, the tackle continues to move forwards and is blocked by a blocking device, the winding wheel stops rotating, and the unmanned aerial vehicle flies out accordingly; after launching is finished, the tackle is pulled back to the initial launching position. According to the catapult of the unmanned aerial vehicle, the flywheel serves as an energy storage element and can rapidly accelerate the unmanned aerial vehicle to a large speed on a very short track, and catapult launching of the unmanned aerial vehicle with a high speed requirement is achieved.

The invention relates to an automatic shifting device and a method for speed change of vehicles. The device comprises a shift selection motor, a shift selection reducer which is connected with the shift selection motor and is used for speed reduction, a spindle, a dial head sleeved on the spindle, a shift motor, a lead screw connected with the output of the shift motor, a nut sleeved on the lead screw, a shifting fork which is sleeved on the spindle and is in transmission fit with the nut, a shift selection position sensor arranged on the shift selection reducer, a shift position sensor connected with the spindle, and a shell which is positioned between the shift selection reducer and the shift motor and covers the spindle. The invention has the advantages that: the device has a simple structure, is light and has high mechanical efficiency; the device can realize trip stop, is convenient to install, and is small in mechanical occupied space; the device can realize the stable transmission of power, is accurate in position, can realize program control easily, and is safe and reliable, and shift selection and changing actions are accurate; and the device is low in cost and is easy to implement.

The invention discloses a small reverse osmosis seawater desalting system with an energy reclaiming high-pressure pump. The high-pressure pump comprises a low-pressure raw water inlet, a high-pressure raw water outlet, a high-pressure thick water inlet, a low-pressure thick water discharge port, a plunger pump head for boosting raw water, a double-extension shaft motor and a plunger motor for reclaiming energy of reverse osmosis high-pressure thick water, wherein the plunger pump head, the double-extension shaft motor and the plunger motor share a rotating shaft. A seawater desalting device at least comprises a water suction pump, a pretreatment assembly and a reverse osmosis membrane assembly. A process comprises that: after seawater is pretreated, enters the high-pressure pump and is boosted, the sweater enters a reverse osmosis membrane pressure container from the high-pressure raw water outlet, fresh water after desalting of a reverse osmosis membrane is produced water, the thick salt water from the reverse osmosis pressure container enters the high-pressure pump and residual pressure is reclaimed, and the low-pressure thick salt water after the residual pressure is reclaimed is discharged from the low-pressure thick water discharge port of the energy reclaiming high-pressure pump. The system can reclaim and utilize the energy of the reverse osmosis high-pressure thick water at the same time of boosting the raw water so as to reduce the energy consumption of a reverse osmosis system.

The invention discloses a paper ingot folding machine. The paper ingot folding machine comprises a machine frame, wherein a scroll fixing device, a paper belt drawing device, a parallel paper edge folding device, a paper belt cutting device, a paper sheet obliquely folding device, a paper sheet obliquely coiling device and a power driving device are sequentially arranged on the machine frame. Thepaper ingot folding machine can perform parallel paper edge folding, continuous cutting and oblique diagonal folding on paper sheets, has multiple functions and is convenient to operate and maintain;the quality of finished products is high; and the paper ingot folding machine has the characteristics of reliable performance, consistency in folding size of the paper sheets, orderliness in paper sheet folding, high production efficiency, convenience in mechanical operation and maintenance and the like.

The invention relates to a gear eccentric cycloidal roller pin reduction gear, in particular to a reduction gear with the combination of a gear change structure and an eccentric cycloidal roller pin gear change structure. A composite 2-level reduction gear with the combination of a planetary gear structure and an eccentric roller pin structure is designed. The reduction gear is composed of an input part, a speed reduction part and an output part. The reduction gear is characterized in that a spur gear planetary mechanism without an outer gear ring is used for first level speed reduction, a sun gear on the input shaft drives three planetary gears to be used for achieving first level speed reduction, a pair of double-eccentric structure which is misplaced by 180 degrees is arranged on the three planetary gears, and two bearings, namely rotating arms, are arranged on each segment of eccentric cylinders to be used for driving two cycloidal gears to rotate. The reduction gear has the advantages of being high in reduction ratio and high in efficiency, the single-level transmission can reach the reduction ratio of 1:3, the efficiency reaches 90%, and if multi-level transmission is adopted, the reduction ration will be greater.

The invention relates to a three-dimensional flapping flapping-wing drive mechanism which comprises a rack, a motor, a reduction gear unit, linkage guide rods, spherical hinged support connecting rods and rocker arms, wherein the motor and the reduction gear unit are directly mounted on the rack, the upper surfaces of the linkage guide rods are inclined planes and are hinged with the middles of the rocker arms; the top of the rack is fixedly connected with a spherical hinge; one ends of the rocker arms are also fixedly connected with a spherical hinge; two ends of the spherical hinged support connecting rods are fixedly connected with a spherical hinged support, wherein one ends of the spherical hinged support connecting rods are connected with the spherical hinge on the rack, and the other ends of the spherical hinged support connecting rods are connected with the spherical hinge on the rocker arm. The flapping-wing drive mechanism is simple in structure and light in weight, the rocker arm can realize symmetric three-dimensional flapping under the condition that the mechanism dimension is very small, so that the flapping-wing can produce strong pneumatic force, has the relatively good pneumatic efficiency, and can be relatively well applied to a flapping-wing aircraft to obtain a relatively good flight performance.

The invention provides an electromagnetic torque clutch. The electromagnetic torque clutch comprises an input shaft, an input wheel, an electromagnetic coil, an output shaft and an output wheel fixedto the output shaft. The input wheel is provided with a plurality of radial long grooves extending in the radial direction. A swing rod is arranged in each radial long groove. A spherical fulcrum is fixedly arranged in the middle of each swing rod. One end of each swing rod penetrates through a guide ball. The other end of each swing rod is fixedly provided with a permanent magnet. The output shaft and the input shaft are arranged coaxially. The output wheel is closely attached to the input wheel. The radial long grooves face the output wheel. The surface, facing the input wheel, of the outputwheel is provided with a plurality of grooves. Each groove is opposite to the corresponding radial long groove to form a track groove allowing the corresponding guide ball to roll in. Under the action of an electromagnetic field of the electromagnetic coil, the functions of connection and disconnection of dynamic power in an automobile power transmission system are achieves through left-right swinging of the swing rods, and the requirement for the stability of dynamic torque transmission of the automobile power transmission system is met.

The invention discloses a mechanical mechanism which converts reciprocating motion power into rotary power for output and can realize stepless speed regulation. A power source pulls a rope; the rope pulls a rope drum to rotate; and the rope drum drives a power output shaft to rotate through an overrunning clutch; or the power source drives an oscillating bar to oscillate; a rope tractor on the oscillating bar pulls the rope; the rope pulls the rope drum to rotate; and the rope drum drives the power output shaft to rotate through the overrunning clutch. Because the position of the rope tractor on the oscillating bar can be adjusted, the rotating ratio of the moment to the speed between the power source and the power output shaft can be adjusted by adjusting different positions of the rope tractor on the oscillating bar. The mechanical mechanism has the advantages of high efficiency and simple structure, and capacity of realizing the stepless speed regulation; and the power source can be a cylinder or human power or animal power. The mechanical mechanism can be applied to internal combustion engines, bicycles, and other machinery, or can be applied to equipment needing the stepless speed regulation.

The invention discloses an energy-saving type external-meshing gear pump, and relates to a pump. The energy-saving type external-meshing gear pump comprises an oil inlet (1), an oil outlet (2), a pump body (3), a driving gear (4) and a driven gear (5), wherein the driving gear (4) and the driven gear (5) are arranged in the pump body (3) and are meshed with each other, two ends of the center of the pump body (3) are respectively provided with the oil inlet (1) and the oil outlet (2), the pump body (3) is arranged in a sealing manner through sealing faces at the two ends of the pump body (3), and the oil inlet (1) and the oil outlet (2) are each provided with a flow counter. The energy-saving type external-meshing gear pump has the advantages of simple structure, light weight, low manufacturing cost, reliability in work, and higher volumetric efficiency and mechanical efficiency.

The invention discloses a turbine type stirrer used for molten iron mechanical stirring desulfuration, comprising a rotating shaft, a wheel hub and three stirring vanes, wherein, each stirring vane comprises a stirring vane metal core and is evenly distributed at the periphery of the wheel hub; the surface facing melt iron, the surface deviating melt iron and the side face of the stirring vane are all inclined planes inclining forwards from bottom to top, and the angles of inclination alpha, beta and gamma respectively satisfy the following conditions: alpha is more than or equal to 1 degree and less than or equal to 10 degrees, beta is more than or equal to alpha and less than or equal to 15 degrees, and gamma is more than or equal to 0 degree and less than or equal to 3 degrees; the stirring vane metal core is in eccentric arrangement; the flat surface on which the thickness symmetry plane of the stirring vane metal core is located is a first vertical plane; the flat surface parallel to the first vertical plane and passing the centre line of the rotating shaft is a second vertical plane; the first vertical plane is overlapped with the second vertical plane horizontally moving a distance of L towards the direction of the surface facing melt iron, wherein, L satisfies the condition that L is more than 0 and less than or equal to (d-a)/2; d is the diameter of the metal core of the rotating shaft; and a is the thickness of the stirring vane metal core; by applying the invention, the stirring power consumption of the invention is low, the sticky dregs between the stirring vanes are less; and the dynamical condition of stirring desulfuration is good.

The invention relates to a shock-absorption buffer shaft. The shock-absorption buffer shaft comprises an input shaft, an input end cover, a force transfer pin, an input toothed sleeve, an input toothed wheel, a double toothed wheel, a spring, an output toothed sleeve, an output toothed wheel, an output shaft, an output end cover, a limiting bolt, a fastening bolt and an external sleeve. Force is transferred to the input toothed sleeve by virtue of the teeth of the first internal toothed ring of the input toothed sleeve in a manner of compressing a spring through the teeth of an external toothed ring on the input toothed wheel, later the force is transferred to the double toothed wheel by virtue of the teeth of the first external toothed ring of the double toothed wheel in a manner of compressing the spring through the teeth of the second internal toothed ring of the input toothed sleeve, then the force is transferred to the output toothed sleeve by virtue of the teeth of the first internal toothed ring of the output toothed ring in a manner of compressing the spring through the teeth of the second external toothed ring of the double toothed wheel, and then the force is transferred to the output toothed wheel by virtue of the teeth of the external toothed ring of the output toothed wheel in a manner of compressing the spring through the teeth of the second internal toothed ring of the output toothed sleeve, and finally, the output toothed wheel is used for transmitting the torque by virtue of the force transfer pin through the output shaft.

The invention discloses a grooving machine, which comprises a self-walking mechanism, a working arm rotating mechanism, a working arm mechanism, a cutting mechanism, and a power and control mechanism, wherein the self-walking mechanism is arranged at the bottom of the grooving machine; a mounting platform is arranged at the upper part of the self-walking mechanism; the working arm rotating mechanism and the power and control mechanism are arranged on the mounting platform; the working arm rotating mechanism comprises a turbo-worm reducer and a working arm mounting holder connected with an output shaft of the turbo-worm reducer; the turbo-worm reducer is fixed on the mounting platform; the working arm mechanism is rotatably connected onto the working arm mounting holder and is connected with the cutting mechanism; the power and control mechanism is connected with and controls actions of the self-walking mechanism, the working arm mechanism, the working arm rotating mechanism and the cutting mechanism. A grooving working arm can rotate freely for 360 degrees; the stability coefficient of the grooving machine can be increased through an expendable stabilizing support leg mechanism; the mechanical grooving operation is realized; the grooving efficiency is improved; the labor intensity is alleviated and the safety coefficient is increased.

The invention discloses a double-crankshaft engine and belongs to the technical field of engines. The double-crankshaft engine comprises a piston and two crankshafts forming a double-crankshaft mechanism, and further comprises a cylinder block. The cylinder block comprises an air cylinder block part and a crankshaft supporting part. A piston guide rod is arranged at the lower end of the piston, the cylinder block is internally provided with a piston rod guide groove, the lower end of the piston is open and is provided with a piston end cover, and the piston end cover and the piston guide rod are detachably and fixedly connected; and the piston is a skirt-free piston with the piston guide end and the piston seal end separated, the piston seal end is a piston head, and the piston guide end is provided with the piston guide rod and the piston rod guide groove. The double-crankshaft engine is good in manufacturability, the piston is designed through isostress, strength is increased, abrasion-resisting design is adopted in a connecting part of a connecting rod and the piston, and the abrasion resisting performance and the reliability of the whole engine are improved.

The invention relates to a convertible walking mechanism of a robot, solving defects existing in a single walking mechanism, wherein each transmission chain part is controlled through the adoption of concentric shafts; each transmission interior shaft is directly connected with a track driving wheel in a track type structure and a wheel in a wheel type structure through flat keys; each track covers the track driving wheel and a track guide wheel; the track driving wheel and the track guide wheel covered by each track are fixedly arranged in each track bracket; each transmission exterior shaft is fixedly connected with the track bracket through screws, so that the swing of each track type structure is realized; and a track auxiliary wheel in each track type structure is fixedly arranged on a track auxiliary wheel supporting frame and connected in series with a motor together with two connecting bars through dowels for the formation of a four-bar mechanism group. The convertible walking mechanism of the robot is simple in mechanical structure, high in transmission efficiency and strong in adaptation ability, and can be applicable for various-condition road surfaces; and therefore, the application prospect is wide.

The invention discloses a yard container crane heize device, which is characterized by the following: the double side of the heize device installs two cable drums connect to the decelerator; the central bearing of the two cable drums are fixed on both extremities of supporting rack; the armored rope on the surface of cable drum is the symmetrical double end arrangement; the lower part of the two cable drums (4,5) installs sling boarding or sling; two blocks are installed on the sling boarding or the two extremities of the sling; the double armored rope on the surface of cable drum cross the corresponding block directly; the whole device is placed in the middle of the small car frames, which uses the sling central lines as baseline; the armored rope crosses from the small car frame to sling top sheave; the motor activation decelerator takes the sling up and down by armored rope twisting on the double-drum. The invention improves the mechanical efficiency of the whole device, which reduces the cost.

The invention relates to an opened circulating Stirling engine comprising a hot-end cylinder, a hot-end piston, a regenerator, a cold-end cylinder and a cold-end piston. The regenerator is an one-way regenerator, the cold-end inlet and hot-end outlet of the one-way regenerator form a low-temperature medium channel, and the hot-end inlet and cold-end outlet form a high-temperature medium channel; the cold inlet of the cold-end cylinder is communicated with the air, and the cold outlet is communicated with the cold-end inlet of the one-way regenerator; the hot inlet of the hot-end cylinder is communicated with the hot-end outlet of the one-way regenerator, and the hot outlet is communicated with the hot-end inlet of the one-way regenerator; the cold-end outlet of the one-way regenerator is communicated with the air. The circulating medium adopts the one-way flowing manner, the heat exchanging manner is optimized, and the regenerating efficiency is improved; an absolute sealing device for a power piston and an expanding piston is omitted, the friction resistance is reduced greatly, and engine mechanical efficiency is improved; meanwhile, the medium is of the air, the operating pressure and temperature are low, expensive temperature-resistant material is omitted, cost is low, reliability is high, energy is saved, and environment is protected.

The invention discloses a train energy feedback type active radial bogie. The train energy feedback type active radial bogie is provided with an energy recovery system, an active control system and a radial steering system. The radial steering system comprises a front swing arm assembly, a rear swing arm assembly and a radial steering transmission device. The front swing arm assembly and the rear swing arm assembly are connected with a gear base of an upper bevel gear (11) and a gear base of a lower bevel gear (12) through flanges respectively, wherein the upper bevel gear (11) and the lower bevel gear (12) are arranged on the radial steering transmission device. The train energy feedback type active radial bogie has the advantages of being simple in mechanical structure, moderate in cost and capable of achieving energy recovery, being used for assembling rail train radial steering equipment replacement parts, and having the good radial steering effect.

The invention provides a structure for testing the axial force of a turbocharger. The partial structures of components such as the bearing body, the thrust bearing, the compressor back plate, and thelike of a universal turbocharger are improved, and a chuck is added. The thrust bearing adopts separate oil supply. The thrust bearing is supported on a plurality of force sensors through the chuck. The axial force of the turbocharger is measured by the force sensors. The structure for testing axial force of turbocharger can directly measure the axial force of the turbocharger, has high reliability and good repeatability.

The invention belongs to hydraulic elements in machinery industry, in particular to a balanced type crescent seal gear pump which comprises a pump body 1 (7), a main shaft (10), a front pump cover (11), an end cover (9), a rear pump cover (18), an inner gear 1 (5), an outer gear 1 (6) and the like, wherein the left side of the pump body 1 (7) is fixedly provided with a pump body 2 (15) through a locating pin (3) and a sealing ring; the left and right sides of the outer gear 1 (6) on the main shaft (10) in the pump body 1 (7) and pump body 2 (15) are respectively provided with an outer gear 3 (17) and an outer gear 2 (13) at equal intervals through a key (4); and an inner gear 2 (14) and an inner gear 3 (16) are respectively arranged in the pump body 1 (7) and the pump body 2 (15) corresponding to the outer gear 2 (13) and the outer gear 3 (17). The balanced type crescent seal gear pump reduces the action born by the bearing by the radial force born by a balance shaft, thus preventing the glue of the crescent seal gear pump from being failed.

The invention provides a pendulum type pumping unit with a T-shaped walking beam. The pumping unit comprises a rack, the T-shaped walking beam, a horse head, a reduction gearbox, a crank and a motor, wherein the T-shaped walking beam is arranged on the rack through a main shaft; the central line of an oscillating bar is perpendicular to a main beam to form the T-shaped walking beam in rigid connection, and the transmission angle of the oscillating bar and the main beam during movement is equal to 90 degrees all the time; an output shaft of the reduction gearbox is positioned below the main shaft; the crank is arranged on the output shaft of the reduction gearbox and is provided with a striking gear; the striking gear is matched with the oscillating bar to change the rotation movement of the crank into arc movement of the oscillating bar so as to drive the up-down swing of the main beam. The counterweight balance moment is stable, the peak torque of the pumping unit can be obviously reduced, the negative torque is eliminated, the stability is enhanced, and the energy saving effect is improved.

The invention discloses an oil pumping unit system with multiple sections of steam injection packer parts. The oil pumping unit system comprises an oil pumping unit body, a steam injection thermal production oil pump and a packer assembly. The oil pumping unit body is connected with the steam injection thermal production oil pump through a traction system of the oil pumping unit body. The steam injection thermal production oil pump is connected with the packer assembly through a release sub. The packer assembly comprises the release sub, a first oil discharging pipe, a first side sealing spindle, a second oil discharging pipe, a second side sealing spindle, a third oil discharging pipe, a third side sealing spindle, a packer body, a one-way valve, a first spraying head, a second spraying head, a sealing ring, a fourth oil discharging pipe, a third side sealing spindle, a fifth oil discharging pipe, a fourth side sealing spindle, a third spraying head, a ventilation pipe, a cable inletguiding part and a side gas pipeline.

The invention relates to a dynamic coupling device for a hybrid electric vehicle and a working method thereof. The dynamic coupling device for the hybrid electric vehicle comprises an engine, a first clutch, a front-row bevel gear, a second clutch, a planet bevel gear, a gear ring, a planet carrier, a rear-row bevel gear, a cylindrical gear, a third clutch, a second motor, a fourth clutch and a first motor. According to the working method, the dynamic coupling device has seven working modes: a pure electric working mode, a parking generating working mode, an engine starting working mode, an engine independent working mode, a combined driving working mode, a driving generating working mode and a regenerating brake working mode. The dynamic coupling device for the hybrid electric vehicle can realize the power coupling of multiple power sources through a gear mechanism, can realize various running modes, and can optimize the fuel economy and energy utilization efficiency of the whole vehicle.

The invention relates to a rolling friction sine device, which comprises the first motion device and the second motion device. Wherein, the first one is formed by oscillating motion element, the first straight guide rail, a sliding block, a revolving element, and a revolving input axle, while the sliding block and the oscillating motion element via the first straight guide rail are sliding connected; the second motion device comprises a oscillating motion element, the second straight guide rail and a frame, while the oscillating motion element and the frame are sliding connected via the second straight guide rail. The motion direction generation by the first oscillating motion element is vertical to the motion direction of the oscillating motion element of second motion element; the first and second straight guide rails have sliding rollers mounted inside the sliding grooves. The invention has longitudinal rolling grooves on the working surface, and the roller uses rolling friction, with less friction parameter and high mechanical efficiency.

The invention relates to a mucker used in ore with high safety performance when a roadway is initated in ore comprising a frame, which is characterized in that: a hydraulic pump, a hydraulic cylinder, a main motor and a transmission shaft are arranged on the frame; one end of the hydraulic cylinder is connected with an anterior bucket; a feed opening is arranged in middle of the anterior bucket and a belt driving roll is on the frame under the feed opening; an built-in motor roll is arranged on the posterior-upper frame. The built-in motor roll is drivingly connected with the belt driving roll by the belt; the main motor is drivingly connected with the transmission shaft; track wheels are respectively arranged at both ends of the transmission.