108results about How to "Save drive energy" patented technology

A hoisting device can be small-sized and energy can be saved. A hoisting device 10 according to the present invention has a hoist 30 and a control unit 32. The hoist 30 rotates a drum 12 having a wire 14 wound thereon by an oil pressure motor 42 rotatable in normal and reverse directions. To the oil pressure motor 42, operating oil is supplied from an oil pressure pump 44. The oil pressure pump 44 is a two-way discharge fixed capacity type, and rotated by a servomotor 46. An acceleration / displacement transducer 34 in the control unit 32 finds a moving direction and a moving speed of a wire hanging point in the vertical direction from an output signal of an acceleration sensor 24. The control unit 32 outputs a drive control signal of the servomotor 46 according to a paying-out speed or a rolling-up speed of the wire 14 offsetting the vertical motion of the wire hanging point caused by the heaving of a hull based on a speed instruction Vi of the paying-out or rolling-up speed of the wire, a detected signal of the acceleration sensor 24 and a detected signal of a wire speed sensor 26.

The invention discloses a planetary intelligent self-adaptive two-gear multi-cam automatic speed change driver which comprises a power device, a box body, a transmission shaft, a planetary transmission mechanism, a circular ring body axial outer conical sleeve and a circular ring body axial inner conical sleeve, wherein the transmission shaft is sleeved by the circular ring body axial outer conical sleeve which is transmitted by a helical cam pair; and the planetary transmission mechanism adopts a slow gear transmission mode and has a multi-end-face-cam transmission structure. The planetary intelligent self-adaptive two-gear multi-cam automatic speed change driver has all the advantages of existing cam self-adaptive automatic speed change devices and outputs slow gear power through the planetary transmission mechanism; by adopting the multi-end-face-cam slow gear transmission structure, the transmission efficiency is improved, the sensitivity during gear shifting can be guaranteed, sudden jerk and clamping stagnation which are caused by gear shifting can be eliminated, and the driving and riding comfortableness is improved; and furthermore, energy is saved, consumption is reduced, and the dynamic property, the economical property, the driving safety and the comfortableness of vehicles are greatly improved.

A device for laying a flexible material web 1 on a point of deposit 4 and which has at least one pair of deposit rollers 2, 3 that rotate in opposite directions. The deposit rollers 2, 3 form part of a deposit carriage 5 which is reciprocated in a reversible direction over at least the deposit length L of the material web 1. The device is more cost-effective in that the deposit carriage 5 has a smaller width than the point of deposit 4 and is reciprocated in a reversible direction over at least the deposit width B of the point of deposit 4.

The invention relates to a common rail electronic control jet apparatus, belonging to technology of an electronic control fuel injection system. The controller comprises an oil inlet joint, an oil inlet, an electromagnet device, a nozzle body, a needle valve, a valve seat and a jet orifice; wherein, the electromagnet device includes a static iron core, a moving iron core and a coil, and a working clearance H exists between the static iron core and the moving iron core along the axial direction; the moving iron core is movably connected with the needle valve along the axial direction; the controller also comprises a compression spring acting on the needle valve, a force application mechanism acting on the moving iron core and a blocking mechanism used for providing axial anti-thrust when the moving iron core resets. The common rail electronic control jet apparatus has the advantages of low manufacturing cost, good reliability and low drive energy.

The invention aims at separating carbon dioxide from exhaust combustion gas effectively and making it possible to discharge the residual exhaust combustion gas enriched in the exhaust gas components other than carbon dioxide by the separation of carbon dioxide into the atmosphere. Air (7) is separated into oxygen (9) and a nitrogen-base gas (10a) in an oxygen separator (8); coal (1) is burnt with the oxygen (9) in a burner (5a) in a combustion furnace (4); an exhaust combustion gas from the furnace (4) is subjected to exhaust gas treatment; a part of the resulting exhaust combustion gas is recycled to the burner (5a), while the remainder is compressed: the carbon dioxide (29) liquefied by the compression is taken out, while the residual exhaust gas component (31) which is not liquefied by compression is mixed and diluted with the nitrogen-base gas (10a) obtained by separating the oxygen (9) from the air (7) in the oxygen separator (8); and the diluted exhaust gas is discharged into the atmosphere.

The invention discloses a novel tooth-shaped screw type wire, which belongs to the technical field of dry type screw vacuum pumps. The screw type wire disclosed by the invention comprises 5 curve segments, including a dedendum arc ab, a deformed involute bc, an envelop curve cd of a deformed involute b'c', an addendum arc de and a long cycloid ea, wherein the dedendum arc ab and the deformed involute bc are in smooth transition, and the envelop curve cd and the addendum arc are in smooth transition. According to the screw type wire disclosed by the invention, the deformed involutes and the envelop curve are taken as transition curves between the dedendum arc and the addendum arc, so that the dedendum arc and the addendum arc are in smooth connection with the transition curves to prevent a leakage zone and a stagnation zone and to form tight sealing, and the change of a formed end face prompts the improvement of dynamic performance; and simultaneously, the dedendum and the tooth profile part of a rotor are in smooth connection by virtue of the transition curves, and thus manufacturing costs are effectively reduced. The dry type screw vacuum pump provided by the invention can be widely applied to the fields of electronics, semiconductors, chemical industry, food, aerospace and the like.

The invention discloses a strictly-sealed screw rotor profile of a dry-type screw vacuum pump, which belongs to the technical field of dry-type screw vacuum pumps. The rotor profile disclosed by the invention comprises six sections of curves, namely an involute ab, a transition curve bc, a tooth crest arc cd, a prolate cycloid de, a tooth root arc ef and a transition curve fa. The transition curve bc and the transition curve fa are designed to be with conjugate of arcs and cycloids or conjugate of cycloids and arcs. The two transition curves are respectively added between the tooth crest arc cd and the involute ab and between the tooth root arc ef and the involute ab to form smooth connection, so that leakage areas are avoided and strict sealing is formed. The changes of end faces generated from the smooth connection promote the improvement of dynamic properties. Meanwhile, the transition curves enable the tooth root of a rotor to be smoothly connected with a tooth profile part, so that only one cutter is needed to process the tooth root and the tooth profile and the manufacturing cost is effectively lowered. The dry-type screw vacuum pump with the profile disclosed by the invention can be widely applied to the fields of electrons, semiconductors, chemical industry, food, aerospace and the like.

The linear actuator for both vibrating and rolling movement according to one preferred embodiment of the present invention is comprised of a shaft supported so as to be movable reciprocally in an axis direction and a rotation direction about the axis, a first linear driver including a cylindrical stator having a winding wire thereon and a movable member arranged inside the stator so as to reciprocate the shaft linearly in the axis direction, a second linear driver including a cylindrical stator having a winding wire thereon and a movable member arranged inside the stator so as to reciprocate the shaft rollingly in the rotation direction, one of the movable members being secured on the shaft and another one of the movable members being movable relative to the shaft, and a coordinating member for enabling the shaft and the one of the movable member to move in opposite phase to the another one of the movable member.

A two-for-one twisting or cabling spindle apparatus (1) with a supply bobbin (4) mounted on a pot base (2) of a stationary protective pot (3) and a spindle (6) arranged below the protective pot (3) to guide a yarn (5) to be processed during a twisting or cabling process. The spindle (6) is rotatably mounted by a lower bearing device (7) in a bearing housing (9) fixed on a spindle rail (8) and an upper bearing device (11) mounted to the stationary protective pot (3). The largest diameter (d) of the rotatably mounted spindle (6) is at least 10% less than the diameter (D) of a touching line (23) of the pot base (2) of the stationary protective pot (3) with the yarn (5).

The invention relates to a radial whole retractable roof structure. The radial whole retractable roof structure comprises movable roofs, transmission connecting rods and fixed roofs. A whole retractable roof only has one degree of freedom and is radially wholly opened and closed in the opening and closing processes, the movable roofs are connected together through the transmission connecting rods to form a whole, the movable roofs move along rails arranged on the fixed roofs through universal balls to achieve the retractable functions. A variable height intersection truss system is adopted in the movable roofs to form a space stress structural system, and then the dead weight of the movable roofs is reduced. The rails are of a circular arc shape and reasonably arranged, and therefore the rails are prevented from being exposed out of a visual field when the roof is opened. Joints for connecting the movable roofs, the transmission connecting rods and the universal balls are designed, and rotation between the movable roofs and the transmission connecting rods can be achieved to further achieve the retractable function. The radial whole retractable roof structure is novel in retractable mode, reasonable in structure stress, convenient to drive and control, and good in application prospect.

The invention discloses a continuous-power-shifting two-gear speed changing box which comprises a speed changing box body, a power input shaft, a power output shaft, a slow-gear transmission chain and a rapid-gear transmission chain. The rapid-gear transmission chain is of a clutch structure, the slow-gear transmission chain is provided with an overrun clutch, the overrun clutch conducts overrunning when the rapid-gear transmission chain is in joint transmission, the power output shaft is in transmission fit to output power to a differential mechanism, according to the two-gear speed changing box, the output power of a power device is not required to be cut off, the switching between the slow gear and the rapid gear can be directly conducted, the power output of the power device is kept and matched with the running road condition, the jerking sense is reduced, controllability is improved, the driving comfort of a motor vehicle is improved, the power device can stably run for a long period, the service life of the power device is prolonged, and driving energy resources are saved. Further, the joint between the gears is smooth and stable, power consumption in climbing is reduced, power of the power device is fully utilized on the flat ground, driving and gear shifting of the motor vehicle are more stable and smooth, and the aims of saving energy, being environmentally friendly and reducing the use cost are achieved.

The invention discloses a multi-cam self-adaptive multi-gear automatic transmission countershaft. The countershaft comprises a supporting shaft and a mechanical intelligent self-adaptive variable speed assembly located on the supporting shaft. The mechanical intelligent self-adaptive variable speed assembly comprises an overrun clutch, a torus axial outer taper sleeve, a torus axial inner taper sleeve and a variable speed elastic component. The multi-cam self-adaptive multi-gear automatic transmission countershaft is used in transmissions, has all the advantages of an existing cam self-adaptive automatic transmission, and is of a multi-cam structure, therefore, sensitivity in the gear shifting process is ensured, jerking feeling and jam feeling during gear shifting are eliminated, driving comfort is improved, furthermore, energy is saved and consumption is reduced; the dynamic property, economical efficiency, driving safety and driving comfort of a vehicle are greatly improve. In addition, by means of cams and the cooperative relationships among the cams, a clutch is locked after separation, elimination of the transmission gaps among transmission components is facilitated, transmission precision and efficiency are improved, and drive energy is saved.

The invention discloses a powder spreading apparatus for selective laser melting. The apparatus comprises a funnel-type powder spreading bin used for holding powder to be spread and an adjusting device used for adjusting at least pressure of powder located at the powder outlet of the funnel-type powder spreading bin. According to the invention, the powder spreading bin with a funnel-type structure is employed and arranged along a vertical direction together with a processing platform; compared with the prior art, the powder spreading apparatus provided by the invention has a simple and compact structure, is free of idle stroke during round-trip powder spreading and can save driving energy needed in movement of the powder spreading apparatus, reduce energy consumption in powder spreading and improve powder spreading efficiency; powder at the bottom of the funnel-type powder spreading bin is used as a spreading powder source and has great pressure due to extrusion, so powder spreading compactness can be improved, thereby further improving part forming quality; the powder spreading bin can be also applied in research of powder fluidity and can effectively measure influence of a variety of factors on compactness of spread powder.

The present invention relates to a zoom lens, a camera with the zoom lens as a photographing optical system, an information device and a portable information terminal device. The invention aims to provide a high-performance small-size zoom lens which has the following advantages: high setting density of focusing lens set, small focusing movement amount, high semi visual angle which is above 36.8 DEG at wide angle, zoom ratio in about 1.5-5 times, and high definition which corresponds to the photographing component with pixels between 5,000,000 and 10,000,000. The zoom lens is provided with the following components from a photographed member side along an optical axis: a first lens group (G1) which has positive refraction power, a second lens group (G2) which has negative refraction power, a third lens group (G3) which has negative refraction power, a fourth lens group (G4) which has positive refraction power, and a fifth lens group (G5) which has positive refraction power. The third lens group performs focusing. The focal lengths and wide angles of the second lens group and the third lens group and a geometric mean of the whole system focal length in looking in the distance satisfy a preset conditional expression.

The invention relates to a conveyor belt system comprising a conveyor belt (1) extending in the longitudinal direction and a plurality of support roller stations (2) arranged at a distance from each other in the longitudinal direction and on which the conveyor belt (1) is supported by support rollers (3), said conveyor belt (1) being formed from a flexible base material (4) and a plurality of unconnected traction means (5) which determine the tensile strength of the conveyor belt (1) and which extend in the longitudinal direction. According to the invention, in the cross-section of the conveyor belt (1) and with respect to a desired position on a central belt section (a) supported on a support roller (3) of the support roller station (2), the tensile strength relative to the belt width is less than on the laterally adjoining belt sections (b) which are not supported in the desired position by a support roller (3). The invention also relates to the conveyor belt (1) itself.

The invention relates to a device for turning over paper (1, 65) using a paper delivery roller (9), which is adjacent to two paper guide rollers (1, 20), and is equipped with a turning / turning / With storage rollers (14, 26) and an additional transport element (17), the rotary printing press for handling paper can operate in single-sided printing mode and double-sided printing mode (59, 60). When using single-sided printing mode and double-sided printing mode (59, 60), the transfer cylinder (9) can be driven in opposite directions of rotation (37, 38). A gripper system (12; 15, 25, 40, 44) that works in two rotation directions (37, 38) of the transfer roller (9) is installed on the outer shell surface (10) of the transfer roller (9). ,46).

Disclosed is an electrical switching device (1) comprising a state indicator (8) which is covered or uncovered in accordance with the state of the switching device (1). In order to reduce the amount of moved masses, the state indicator (8) remains in a resting position during a switching process of the electrical switching device (1). The state indicator (8) can be covered at least in part by the movable switching contact pieces (2a, 3a, 4a) of the electrical switching device (1), for example.

The invention provides a preparation method of a vibration sounding screen assembly, and the method comprises the following steps: providing a sounding driving assembly and a gap limiting gasket, thesounding driving assembly comprising a support with an inner surface, a first oscillator, and a second oscillator; providing a display screen and a middle frame, wherein the display screen comprises afront surface used for displaying images and an opposite rear surface, the middle frame is supported on the rear surface of the display screen, and a mounting hole is formed in the middle frame; fixing the support provided with the gap limiting gasket to the middle frame, and allowing the second vibrator to penetrate through the mounting hole and to be fixed to the rear surface of the display screen; and removing the gap limiting gasket, so that the distance between the first oscillator and the second oscillator is kept within a preset distance range.

The invention discloses a double-power-input speed-changing system which comprises a first power input component, a second power input component and a transmission, wherein the first power input component and the second power input component are matched with a power input end of the transmission respectively in a connection or disconnection manner. The system is provided with relatively independent double power inputs, the structure is simple and compact, the double power inputs are usually an engine input and a motor input, and power can be switched randomly according to the road condition of a driving vehicle, so that the vehicle is applicable to complex road conditions, particularly, rural and mountainous road conditions; and for a small tricycle or a small quadricycle, the application range is greatly expanded, the usage cost of the vehicle is reduced, and the driving energy is saved.

The invention relates to a press section (10) for drying a fibrous web (1), in particular a paper, cardboard, or tissue web, in a machine for producing same, in which only one press nip is provided, wherein the press nip is formed by a shoe press roll (2) and a counter roll (3), and the shoe press roll (2) has a circumferential flexible cylindrical surface (7) and a pressing element (4), which can be pressed onto the cylindrical surface (7) from inside and thus can press the cylindrical surface (7) against the counter roll (3), and wherein the press section (10) comprises a first felt (5, 5.1, 6) having a base structure (12), which has at least one layer (12.1, 12.2) made of only twisted monofilament threads (20, 20.1, 20.2, 20.3, 20.4) and at least one nonwoven layer (12.1, 12.2) comprising a multitude of threads, wherein the threads of the one layer are oriented substantially in the running direction of the web.

Disclosed is a treadmill which comprises: a main frame; a treadmill belt which is installed inside said main frame, and rotates in connection with the rotation of a support roller through an operation of a driving unit; and a pair of left and right support decks which are placed in an inner space of said treadmill belt, and support said treadmill belt when pressure is applied to an upper surface of said treadmill belt from an upper side, wherein said support decks are installed to move along a guide rail installed in said main frame in connection with the rotation of said treadmill belt and running of a user.

The invention discloses an electronic-control anti-backlash gear pair. The electronic-control anti-backlash gear pair comprises a first gear, a second gear and a third gear. The second gear and the third gear are coaxial and parallel and are meshed with the first gear, and the freedom degree of relative rotation in the circumferential direction exists between the second gear and the third gear. The electronic-control anti-backlash gear pair further comprises an electronic-control anti-backlash system composed of an electronic driving block and a control unit, wherein the electronic driving block is used for driving the second gear and the third gear to relatively rotate to eliminate meshed backlash between the second gear and the first gear and between the third gear and the first gear during electronic deformation. According to the electronic-control anti-backlash gear pair, when the backlash needs to be adjusted, electronic deformation materials are electrified to be deformed, a double gear formed by the second gear and the third gear relatively rotates to eliminate the backlash between the second gear and the first gear meshed with the second gear and between the third gear and the first gear meshed with the third gear, the gear backlash and the return difference can be accordingly eliminated or reduced in real time, cost is low, the structure is simple, accessory equipment such as a motor is not needed, the occupied space is small, driving energy is reduced, the transmission error during direction changing is reduced, and operation and control are simpler and more convenient; as the original mode that the backlash is eliminated through mechanical force of a power source is not adopted, controllability and accuracy are high, and the electronic-control anti-backlash gear pair is suitable for occasions with the requirements for the high accuracy.

A magnetic device is formed from a permanent magnet generating magnetic flux, an armature which can occupy two positions between four poles and an electromagnet winding to which current can be supplied to produce a magnetic flux in one direction or the other, the flux from the winding causing the armature to move into one position and continue to remain in that position after the current flow ceases. The device can be incorporated into a fluid valve to act as a drive for opening and closing the valve. It may also serve as the drive for opening and closing electrical contacts. Monostable operation can be achieved by locating a magnetic flux shunt at one end of the armature travel. A holding solenoid may be incorporated. A pivoting armature in a fluid tight chamber comprises a fluid flow controlling device. It can adopt either of two home positions in contact with two magnetic poles and is retained by magnetic flux from a permanent magnet. Fluid can flow into and out of the chamber via a first passage. A second passage extends through one of the poles to an opening in the pole face which is covered by the armature when the latter occupies one home position but is uncovered when the armature occupies its other home position. A third fluid passage extends through and leads to a second opening in another pole, which is covered when the armature occupies its said other home position. Passages in the poles house energy storing springs each of which is compressed as the armature approaches the pole. A push rod can extend through a passage in one of the poles for conveying armature movement externally of the device.

The invention discloses a large-flow combined linear screw pump having a structure that radiuses of tip circles of a driving screw and a driven screw are respectively greater than radiuses of root circles by two times and having greater engagement depth. Compared with the screw pump in the prior art, the area of the end face at the tooth end of the screw pump provided by the invention is large, that is to say, the work section area of the screw is increased and further the flow is increased at the same rotating speed; for adapting to greater engagement depth and maintaining the better sealing effect, tooth profile lines of the radial section of the driving screw sequentially include an arc segment, an involute segment and a cycloid segment from the tooth root to the tooth top; tooth profile lines of the radial section of the driven screw sequentially include a cycloid segment, an involute segment and an arc segment from the tooth root to the tooth top; and the tooth crest segments of the driving screw and the driven screw are in arc-arc engagement and the better sealing effect can be achieved, thereby the higher conveying efficiency can be obtained, driving energy sources can be saved, and the operation noise caused by the engagement gap can be reduced. The tooth profiles of the driving screw and the driven screen are more beneficial to the design of a molding cutter and the realization on high precision and high efficiency of the screw.

The invention relates to an automatic tripping device for a push-pull trolley for working roll changing. The automatic tripping device comprises a roll changing trolley hook, a push-pull trolley hook, a push-pull trolley frame and a push-pull trolley check block, wherein the push-pull trolley hook is hinged to the push-pull trolley frame; during work, the push-pull trolley and a roll changing trolley are connected through the roll changing trolley hook and the push-pull trolley hook; the push-pull trolley check block is fixed on the ground, or other objects which are static relative to the push-pull trolley frame; a top surface M of a hook head of the roll changing trolley hook is a smooth inclined surface; a top surface N of a hook head of the push-pull trolley hook is a smooth inclined surface. The automatic tripping device disclosed by the invention is used for achieving a simple structure and a fully-automatic roll changing process in a roll changing process, overcoming the defects and shortcomings of the prior art and reducing the manpower and energy source consumption in a using process. The automatic tripping device disclosed by the invention is reasonable in design, compact in structure, simple and safe to operate, reliable to work, convenient to maintain, low in investment cost and energy-saving and dispenses with an external specific driving energy source.

The invention discloses a novel tooth-shaped screw type wire, which belongs to the technical field of dry type screw vacuum pumps. The screw type wire disclosed by the invention comprises 5 curve segments, including a dedendum arc ab, a deformed involute bc, an envelop curve cd of a deformed involute b'c', an addendum arc de and a long cycloid ea, wherein the dedendum arc ab and the deformed involute bc are in smooth transition, and the envelop curve cd and the addendum arc are in smooth transition. According to the screw type wire disclosed by the invention, the deformed involutes and the envelop curve are taken as transition curves between the dedendum arc and the addendum arc, so that the dedendum arc and the addendum arc are in smooth connection with the transition curves to prevent a leakage zone and a stagnation zone and to form tight sealing, and the change of a formed end face prompts the improvement of dynamic performance; and simultaneously, the dedendum and the tooth profile part of a rotor are in smooth connection by virtue of the transition curves, and thus manufacturing costs are effectively reduced. The dry type screw vacuum pump provided by the invention can be widely applied to the fields of electronics, semiconductors, chemical industry, food, aerospace and the like.

A hoisting device can be small-sized and energy can be saved. A hoisting device 10 according to the present invention has a hoist 30 and a control unit 32. The hoist 30 rotates a drum 12 having a wire 14 wound thereon by an oil pressure motor 42 rotatable in normal and reverse directions. To the oil pressure motor 42, operating oil is supplied from an oil pressure pump 44. The oil pressure pump 44 is a two-way discharge fixed capacity type, and rotated by a servomotor 46. An acceleration / displacement transducer 34 in the control unit 32 finds a moving direction and a moving speed of a wire hanging point in the vertical direction from an output signal of an acceleration sensor 24. The control unit 32 outputs a drive control signal of the servomotor 46 according to a paying-out speed or a rolling-up speed of the wire 14 offsetting the vertical motion of the wire hanging point caused by the heaving of a hull based on a speed instruction Vi of the paying-out or rolling-up speed of the wire, a detected signal of the acceleration sensor 24 and a detected signal of a wire speed sensor 26.

Disclosed is a treadmill which comprises: a main frame; a treadmill belt which is installed inside said main frame, and rotates in connection with the rotation of a support roller through an operation of a driving unit; and a pair of left and right support decks which are placed in an inner space of said treadmill belt, and support said treadmill belt when pressure is applied to an upper surface of said treadmill belt from an upper side, wherein said support decks are installed to move along a guide rail installed in said main frame in connection with the rotation of said treadmill belt and running of a user.

There is provided a performance apparatus that can reduce energy consumption while allowing sounding elements to appropriately generate sound. A CPU supplies driving energy to an actuator to drivingly control the same based on pulse width modulation. A rotary pick is rotatively driven by the actuator to pluck reeds to generate sound. The CPU sets the duty of a driving pulse for driving the rotary pick during time points t3 and t4. Thus, higher driving energy is supplied to the actuator in timing in which the rotary pick plucks any of the reeds than in timing in which the rotary pick does not pluck any of the reeds.