61results about How to "Reduce inertial effects" patented technology

The invention relates to a tiller for a crossbow which has a cocking lever in the form of an upper arm (1) and a lower arm (2) pivotally connected with each other about an axis (X) in the front part of the tiller, whereas in the rear part of the tiller said upper arm (1) is connected with the upper end of a butt (5), and said lower arm (2) is connected with the lower end of the butt (5) in the folded state of the tiller by means of a snap fastener (6). Said tiller for a crossbow can be assembled with any appropriate bows and trigger mechanisms, but preferably it is used with a novel bow for a crossbow which is also disclosed.

The invention relates to a tiller for a crossbow which has a cocking lever in the form of an upper arm (1) and a lower arm (2) pivotally connected with each other about an axis (X) in the front part of the tiller, whereas in the rear part of the tiller said upper arm (1) is connected with the upper end of a butt (5), and said lower arm (2) is connected with the lower end of the butt (5) in the folded state of the tiller by means of a snap fastener (6). Said tiller for a crossbow can be assembled with any appropriate bows and trigger mechanisms, but preferably it is used with a novel bow for a crossbow which is also disclosed.

The present invention discloses a method for preventing load impact during the lifting process of a crane hook, which comprises the following steps that 11) the relevant detection data of a steel wire and the hook are obtained at real time to be used for calculating the current data of the discharged length and speed of the steel wire and the height and speed of the hook; 12) a deceleration distance is calculated according to the current hook speed and a read hoisting acceleration; 13) judging if the hook enters a targeted decelerating area, the step 14) is processed, otherwise, the step 11) is processed; 14) if the hook is judged not arriving at a braking position, the step 15) is processed, otherwise the step 16) is processed; 16) a stop instruction is sent, and the hook is braked by a power transmission system. The present invention also discloses a device which prevents the load impact during the lifting process of the crane hook.

A kinetic hybrid device and method for a vehicle may include a planetary gear system configured as a continuously variable transmission comprised of three or four ports. The kinetic hybrid device and method may include a flywheel connected to a first port of the system, a final drive connected to a second port of the system, and the variator for the flywheel connected to a third or fourth port of the system. The prime mover and / or other power sources may share a port with the flywheel, but do not share a port with the final drive.

A positioning device for positioning an object table relative to a reference frame with a drive unit including a first part connectable to the reference frame and a second part for holding the object table is described. The drive unit is constructed to displace the object table in a first direction by generating a force in the first direction on the second part, and a torque acting on the second part about an axis substantially perpendicular to the first direction such that the resulting force of the force and the torque is directed substantially through the center of gravity of the assembly including the object table and the second part.

The invention discloses an intelligent sample collecting device which comprises a machine frame. The machine frame is provided with a feed inlet. A rotatable rotating disc mechanism and multiple sample storage barrels used for collecting samples are arranged in a collecting cavity formed by the machine frame. The sample storage barrels are hung on the rotating disc mechanism. Each sample storage barrel is provided with a hinged barrel cover and an induction locking mechanism used for locking the barrel cover. The hinged position of the barrel cover is provided with an elastic part so that the barrel cover can bounce upwards to be opened when not locked. The feed inlet is provided with a liftable weighing mechanism. The weighing mechanism is provided with an induction unlocking assembly matched with the induction locking mechanism. When the rotating disc mechanism drives the sample storage barrels to rotate to the position below the feed inlet, the weighing mechanism raises to lift up the sample storage barrels, so that the induction locking mechanism induces an unlocking signal of the induction unlocking assembly to open the barrel covers for sample connection and weighing operation. The intelligent sample collecting device has the advantages that the structure is simple and compact, the intelligence degree is high, sample collection and transfer safety is high, sample collection quality precision is high, working efficiency is high, and the production cost is low.

A kinetic hybrid device and method for a vehicle may include a planetary gear system configured as a continuously variable transmission comprised of three or four ports. The kinetic hybrid device and method may include a flywheel connected to a first port of the system, a final drive connected to a second port of the system, and the variator for the flywheel connected to a third or fourth port of the system. The prime mover and / or other power sources may share a port with the flywheel, but do not share a port with the final drive.

The invention relates to a butt joint-precise inductor assembly machine. The machine comprises a frame and a power distribution control box; the frame is provided with a conveying device; an iron sheet inserting device, a pressing ring device and an iron core inserting device are arranged above the conveying device in sequence; the conveying device is matched with a positioning device; the positioning device includes a positioning base arranged on a conveying base; the positioning base is provided with a positioning lifting cylinder; the positioning lifting cylinder is provided with a positioning lifting block matched with a positioning lifting slide rod on the positioning base; and the positioning lifting block is provided with a positioning pin matched with a positioning pin sleeve arranged on a conveying carrier. The machine is provided with the positioning device in the conveying device; and through insertion matching between the positioning pin arranged on the positioning lifting block and the positioning pin sleeve arranged on the conveying carrier of the conveying device, the conveying device stops conveying, the inertia influence is eliminated, the butt joint precision between the conveying carrier and each assembly part is improved, and the yield is largely increased.

The invention relates to a Method for calculating a local extremum, preferably a local minimum, of a multidimensional function E(x1, x2, . . . , xn) which is interpretable as a function of potential energy with spatial coordinates (x1, x2, . . . , xn), using an iteration process based on a molecular dynamics based quenching method comprising the following steps: a) Calculating a trajectory X(ti) at discrete times ti=Σiδti starting from an assigned initial coordinate X(0) on basis of a gradient fk=δE / δxk with k=1, . . . ,n and a time derivatives of the coordinates vk=dxk / dt using fxk=mxk dvxk / dt in which mxk represent masses at the spatial coordinates and vxk=dxk / dt represents velocity b) Performing a molecular dynamics based quenching method for analysing said function E(x1, x2, . . . , xn) of existence of a local extremum, in case of reaching a local extremum abort processing and / or select a new initial coordinate and proceed further from step a) c) Calculating at each iteration time step δti F=(fxk) and (k=1, . . . ,n) representing a global force vector field acting in the spatial coordinates, V=(vxk) representing a velocity vector field, P=F·V representing power Setting V=(1−α)×V+α×(F / |F|)·|V|α is a dimensionless variable and amounts a given initial value αstart at first iteration time step In case of P<0: V is set to zero, α becomes αstart, δti will be reduced and return to step b) In case of P≧0: Analysing whether the number of conducted iteration steps since the last detected case of P<0 exceeds a given minimum number Nmin, in case of “no” returning to step b) and in case of “yes” increasing δti, decreasing α and return to step b).

A positioning device for positioning an object table relative to a reference frame with a drive unit including a first part connectable to the reference frame and a second part for holding the object table is described. The drive unit is constructed to displace the object table in a first direction by generating a force in the first direction on the second part, and a torque acting on the second part about an axis substantially perpendicular to the first direction such that the resulting force of the force and the torque is directed substantially through the center of gravity of the assembly including the object table and the second part.

The invention discloses a fixing device. The fixing device comprises a U-shaped fixing frame body (1), a vibration reduction ball (2), a cradle head anti-shedding assembly (3) and a self-locking belt, and is mainly applied to fixation of an ADC Micro multispectral camera on a DJI phantom 2 vision+ aerial photography aircraft. A rectangular square hole is formed in the bottom of a U-shaped fixing piece, and through the rectangular square hole, a camera lens of the ADC Micro multispectral camera can take a photograph; circular holes are formed in the bottom, and are matched with the anti-shedding assembly to fix the camera; the vibration reduction ball can select different damping values as needed so as to realize vibration reduction protection; grooves are formed in U-shaped positions on two sides, so that the camera is convenient to fix through an erected table on a DJI phantom 2 vision+ aircraft bracket by fixing the belt; the U-shaped fixing frame body is made from stainless steel plates of 1-2 mm, and coated with antirust film layers. The fixing device disclosed by the invention is high in pertinence, safe and reliable, and convenient to use.

The invention provides a temperature control method based on passive variable thermal resistance. According to the technical scheme, a semiconductor temperature difference module for realizing the passive variable thermal resistance is arranged between a heating executor and a refrigeration executor of a temperature control device and a temperature control object; and according to an acquired temperature signal, the heat flow is changed by adjusting the thermal resistance, thereby realizing the temperature control. According to the temperature control method, the energy does not need to be consumed; no intermediate adjustment link exists; the response speed is increased; and the temperature control precision can be improved through the variable thermal resistance, for example, due to the two-way active temperature control matched with the semiconductor refrigeration, the heat balance can be rapidly achieved, and the high-precision temperature control is realized. The method is flexibleand convenient, is low in cost, effectively improves the temperature control precision, and can be widely applied to the high-precision temperature control in different temperature areas.

The invention relates to a device (1) for damping vibrations with an energy recovery capability, comprising an input shaft (2) which can be rotated about the input shaft longitudinal axis A with an alternating rotational direction by a component that vibrates relative to the device (1). A freewheel device (3) is connected to the input shaft (2) on the drive side and at least indirectly to a generator (4) on the output side, said generator being capable of converting the kinetic rotational energy into electric energy and transferring said energy to an energy storage element (5), and the freewheel device (3) comprises a first (6) and a second freewheel (7), each of which is rotationally fixed to the input shaft (2) on the drive side and is arranged so as to lock in the opposite direction. The second freewheel (7) is connected to a reverse gear mechanism (8) on the output side, and the reverse transmission (8) and the first freewheel (6) are at least indirectly connected to the generator (4) on the output side. The invention also relates to a vehicle with a device (1) according to the invention.

The invention discloses a composite liner for ball mills comprising an upper layer of alloy cast steel bonded on a symmetrically distributed lower rubber surface, said cast steel layer is prefabricated so as to form the desired profile on the upper surface of the said liner required for specific grinding operations. The present invention also discloses a method of manufacturing composite mill liner.

An actuator positions a movable portion including a lens in a first direction (Z-axis direction). An acceleration sensor generates first acceleration information ACC that indicates the acceleration applied to the image capture apparatus in the first direction. An actuator driver IC superimposes a correction value that corresponds to the first acceleration information on a base instruction value that corresponds to the target position to be set for the lens in the first direction. The actuator driver IC controls the actuator according to a corrected instruction value thus obtained.

The invention discloses a noel electric brush device with touching kept based on a centrifugal force. The novel electric brush device comprises a rotating shaft, an outer sleeve and a slide block. The rotating shaft is arranged in the outer sleeve and is assembled coaxially with the outer sleeve. The slide block is rotatably arranged between the outer sleeve and the rotating shaft. The slide block is electrically connected with the upper end of the rotating shaft through a flexible wire. The lower end of the slide block is provided with a guide rail which is attached to the outer sleeve. A projected plate which pushes the slide block to perform circular motion is arranged in the radial direction of the rotating shaft. The project plate makes the slide block perform simultaneous movement with the rotating shaft so that good contact conduction of the device is kept. According to the novel electric brush device with touch kept based on the centrifugal force, no pressure device is required; touching is realized by means of gravity and the centrifugal force; the noel electric brush device can be adapted with a high-rotating-speed or even a superhigh-rotating-speed working environment; high contact effect is realized; and service life of the electric brush is prolonged.

The test method for the portable elevator speed limiter test device is to install a photoelectric encoder on the speed limiter test device, install a speed measuring wheel on its shaft, press the speed measuring wheel against the outer edge of the speed limiter wheel, and the speed measuring wheel Rotate with the wheel of the speed limiter; set up a double-ended output drive motor, the output shaft at one end is fixed with a driving wheel that presses against the outer circumference of the wheel of the speed limiter, and a photoelectric encoder sensor is installed on the output shaft at the other end; its test method The single-chip signal processing unit receives and processes the speed limiter wheel rotation linear speed signal output by the photoelectric encoder and displays it in real time, receives the speed feedback signal output by the photoelectric encoder sensor for the PID closed-loop control of the motor, and sends it to the motor through the single-chip control system. The rectifier drive module outputs the drive signal for voltage regulation and speed regulation required by the DC drive motor. The test method for the portable elevator speed limiter test device can be used on site, the measurement result is accurate and reliable, and the installation is convenient.

The invention relates to a method or equipment for erecting or assembling a bridge, in particular to a horizontal-moving device for mounting a cable saddle. The horizontal-moving device is erected ontwo portal frames of a cable tower and comprises a cross beam and an electric hoist, and the electric hoist is connected to the lower portion of the cross beam. The horizontal-moving device is characterized in that guiding grooves are fixedly formed in the upper portions of the two portal frames and are mutually parallel, sliding blocks are fixedly connected to the lower portions of the two ends of the cross beam correspondingly, and the two sliding blocks are in sliding fit with the guiding grooves; and traction mechanisms used for pulling the cross beam to slide along the guiding grooves arefixedly arranged on the two portal frames correspondingly. According to the horizontal-moving device for mounting the cable saddle, the sliding form between the cross beam and the portal frames is changed from rolling friction into sliding friction, thus the friction force between the cross beam and the portal frames is increased, the influence of inertia during moving of the cross beam is reduced, and the effect that the mounting position of the cable saddle is positioned simply and precisely is achieved; and meanwhile, the structure of the cross beam is simplified, and the cost and mountingdifficulty of the cross beam are reduced.

The invention relates to a device capable of preventing inertia swing of an unmanned overhead crane clamp. The device is composed of a trapezoid cover connecting beam, a trapezoid cover, a trapezoid plug and a trapezoid plug connecting beam which are sequentially arranged from top to bottom; the lower end of the trapezoid plug connecting beam is fixed to the unmanned overhead crane clamp, and the upper end of the trapezoid plug connecting beam is fixedly connected with the trapezoid plug; and the upper end of the trapezoid cover connecting beam is fixed to the bottom of a trolley of an unmanned overhead crane, the trapezoid cover is fixed to the lower end of the trapezoid cover connecting beam and corresponds to the trapezoid plug, and internal space of the trapezoid cover is matched with the shape of the trapezoid plug. According to the device, the trapezoid plug and the trapezoid cover are used for connecting the clamp at the high position with the trolley of the unmanned overhead crane, and therefore flexible connection between the clamp and the overhead crane through a steel wire rope is converted into rigid connection, synchronous operation of the clamp and the trolley in the overhead crane variable motion process is guaranteed, the clamp swing angle is prevented, stable running of the unmanned overhead crane is guaranteed, and the working efficiency of the overhead crane is improved.

The invention discloses a dual-drive differential positive and reverse rotation transmission and multi-speed change device comprising a shell, a power mechanism, a first bevel gear, a second bevel gear, a locating shaft fixedly arranged in the shell, a first differential wheel, a second differential wheel and a planet wheel, wherein the first bevel gear and the second bevel gear are driven by thepower mechanism, the first differential wheel and the second differential wheel are rotationally connected to the locating shaft, the planet wheel is arranged between the first differential wheel andthe second differential wheel, the side, far away from the planet wheel, of the first differential wheel is meshed with the first bevel gear, the side, far away from the planet wheel, of the second differential wheel is meshed with the second bevel gear, the planet wheel comprises a power rotation ring on the outer side and three rolling bevel gears located inside the power rotation ring and rotationally connected with the power rotation ring, and the three rolling bevel gears are evenly distributed along the inner circumference face of the power rotation ring. The dual-drive differential positive and reverse rotation transmission and multi-speed change device has the effects of improving reversing speed of a positive and reverse rotation transmission device, solving the reversing pause problem existing during brake starting and improving the accelerating speed after reversing.

The invention discloses a pesticide spraying unmanned aerial vehicle with multiple spraying heads. The unmanned aerial vehicle comprises a pesticide storage box; the pesticide storage box is fixed onthe top surface of a mainframe box in a flat type covering and pressing manner; a plurality of anti-surge plates are vertically fixed to the inner top of the pesticide storage box side by side; a storage groove with a downward opening is formed in the bottom surface of a motor bracket; one end of a rotary pesticide spraying pipe is rotationally fixed in the storage groove through a rotary drivingdevice; the rotary pesticide spraying pipe is communicated with a rotary feeding device arranged in the mainframe box, a piston device used for separating the interior of the rotary pesticide sprayingpipe is arranged in the rotary pesticide spraying pipe, and a traction device used for pulling the piston device is arranged on the inner wall of the storage groove. According to the unmanned aerialvehicle, the arranged rotary pesticide spraying pipe can rotationally stretch out to spray pesticide; the pesticide spraying range of the rotary pesticide spraying pipe is automatically adjusted whilethe pesticide spraying angle of the rotary pesticide spraying pipe is adjusted; a control device does not need to be additionally arranged, the spraying head and the rotary pesticide spraying pipe are mutually matched for use, and the unmanned aerial vehicle pesticide spraying applicability and the pesticide spraying efficiency are greatly improved.

A release liner staging unit for depositing a release liner onto an adhesive layer. The unit includes an accumulator that creates a buffer between an amount of release liner supplied and an amount needed for covering a layer of adhesive. The tendency of release liner placed within the accumulator to settle allows additional release liner to be introduced, thereby producing a slightly saturated level of release liner in the accumulator. Time delays can be accounted for to reduce the number of times a drive mechanism needs to operate, thereby reducing wear on such componentry. The unit may also form part of a larger release liner application device and adhesive application system.

The invention discloses a laser cutting machine with a multi-angle adjustment function. The laser cutting machine structurally comprises a base, a workbench, moving frames, a guide rail, a driving boxand a laser generator, wherein the workbench is horizontally mounted at the inner side of the upper end of the base, the moving frames are vertically mounted at inner sides of two ends of the base, the guide rail is horizontally fixed between the moving frames, the driving box is arranged at the outer side of the guide rail in a sleeving mode, the laser generator is mounted at the lower end of the driving box, the workbench comprises a fixed seat, a collection box and a supporting structure, the collection box is mounted at the inner side of the fixed seat, and the fixed seat is mounted at the inner side of the base in an embedded mode. According to the laser cutting machine, the supporting structure is arranged above the collection box, so that the influences of gravity and inertia are reduced while the downward falling speed is reduced, the contact area is increased to reduce impact force, and leftover materials are collected; and an opening structure is arranged at the lower end ofa feeding port to guide the leftover materials, so that the falling angle of the leftover materials is adjusted, the contact area in the falling process is increased, and the impact on the ground isprevented.

The invention discloses a limit device for an electric furnace transformer body. The limit device comprises a box body, a transformer body is arranged in the box body, and clamping plates are arrangedon the two sides of the transformer body; attraction plates are arranged on the front and back side surfaces of the transformer body and are made from magnetic materials, springs are arranged on thesurfaces of the adsorption plates, and connecting rods are arranged at the ends of the springs; limit blocks are arranged at the ends of the connecting rods, a limit groove is formed in the inner wallof the box body, and the limit blocks are arranged in the limit groove. By arranging the springs, when the box body is subjected to the inertia, one of the front and back springs of the transformer body pulls the box body, the other spring pushes the box body, the inertial influence can be reduced, a buffer cushion made from rubber materials can have a buffering effect, the inertial influence isfurther reduced, and the improvement of the safety of transporting is facilitated.

The invention relates to the technical field of conveying devices, in particular to a dual-motor wire conveying device for an FDM printer. The dual-motor wire conveying device comprises a short-rangeextrusion structure, a long-range conveying structure, a spray head, a wire tray, a wire and a wire guide pipe. The short-range extrusion structure and the spray head are connected, the other end of the short-range extrusion structure is connected with the wire guide pipe, and the wire penetrates through the wire tray, the long-range conveying structure and the wire guide pipe, is subjected to thepulling force provided by the short-range extrusion structure and passes through the spray head. Accordingly, printing is more stable, printing quality is improved, the weight of the short-range extrusion structure is reduced, the influences of inertia on high-speed printing conditions are reduced, stability of precise control over movement of the spray head is improved, and printing time is shortened.

The invention provides a two-position adjusting method for a temperature control method based on passive variable thermal resistance. A semiconductor temperature difference module for realizing passive variable thermal resistance is arranged between a temperature control object and an environment where the temperature control object is located, and the maximum thermal resistance and the minimum thermal resistance are controlled through two-position adjustment according to acquired temperature signals, so that the heat flow is changed, and the temperature control is realized. The two-position adjusting method is low in cost, easy to realize and high in cost performance; two-position control of the semiconductor temperature difference module is combined, no moving part and no deviation areaare provided, and the control precision is higher; if the two-way active temperature control of the semiconductor refrigeration is matched, the temperature control precision can be further improved through the variable heat resistance. According to the two-position adjusting method, the temperature control precision can be effectively improved, and the two-position adjusting method can be widely applied to high-precision temperature control in different temperature areas.

Provided is a device of an ultralow frequency test in a horizontal direction. A flotation frame is in a cross shape. A flotation cushion is installed on each of four corners of the flotation frame and placed on a flotation flat board. Gas storage cavities are respectively formed in the center and the four corners of the flotation frame. An end cover is installed at the upper end of a gas storage in the center of the flotation frame and communicated with the gas storage cavities in the four corners of the flotation frame. A bottom cover is installed at the bottom end of the gas storage cavity in the center of the flotation frame. A round through hole is formed in the center of the flotation flat board. A fixed end of a pull rope is installed on a hanging point of a solar cell panel, and the pull rope penetrates through two ends of the through hole in the center of the flotation flat board and is connected with the bottom cover and the fixed end of the pull rope. According to the device of the ultralow frequency test in the horizontal direction, plane motion is basically unconfined, and free of effects of friction, inertia force and additional force.

The hydraulic control arrangement has a working cylinder (14) that is provided with a working chamber (18) into which a piston (16) passes, such that machinable workpiece is supported against an upper tool (4) that is connected with piston. An adjustable choke device (32) has a first pressure medium flow path (28) via which working chamber is connected with a pressure medium sink (T). A hydraulic machine (34) has a second pressure medium flow path (30) via which working chamber is connected to the pressure medium sink, for recuperation of the press work. An independent claim is included for press.

The invention provides a walking vehicle for preventing old people from falling down, belonging to the field of medical instruments. The walking vehicle comprises a frame and a hanger, wherein the hanger is hung on the frame and located in the middle of the frame, the frame comprises an upper part and a lower part, the upper part and the lower part are connected through a vertical beam, the lower part is a movable protection part, the upper part is a supporting protection part, the movable protection part comprises a lower wheel carrier, a suspension arm, a front guide wheel, a rear wheel arm and a rear supporting wheel, and the lower wheel carrier is of a C-shaped structure. According to the invention, snub braking of the walking vehicle can be formed, and inertia influence is reduced; and a half-wrapping type structure is adopted, and a front opening is formed, so gravity center adjustment of walking exercise can be facilitated.