57results about How to "Increase drive torque" patented technology

An automated multi-group standard transmission, for a utility vehicle, and a process for changing gears in the multi-group transmission. The multi-group transmission includes at least two multi-speed transmission groups arranged one after the other, such that a multitude of gears can be shifted. A transmission input shaft that can be connected to an engine, via a startup element, is associated with a first transmission group and a second transmission main shaft is associated with a second transmission group. Load shifting mechanisms produce a temporary direct connection between the transmission input shaft and the transmission main shaft such that an intermediate gear can be shifted during a gear change from an original gear into a target gear. The load shifting mechanism enables gear changes that are virtually free of interruptions in load transfer during a gear change from a lower to a higher gear, thus increasing a high operational comfort.

The invention belongs to the technical field of welding of robots, and in particular relates to an autonomous mobile robot system for metal-inert-gas (MIG)/metal-active-gas (MAG) multilayer multipass welding of a large thick plate. The system comprises a robot body, a control system and an MIG/MAG welding system, wherein the robot body comprises a crawling mechanism and an operating mechanism; the control system comprises a sensing system, a robot body control box and a robot master control system; the MIG/MAG welding system comprises an MIG/MAG welding gun, an MIG/MAG welding power supply, a wire feeding machine, shielding gas and a weld cooling system; and the robot body, the control system and the MIG/MAG welding system are connected with one another through cables. The system has the advantages that a contact type magnet-wheel adsorption and non-contact type clearance adsorption composite mode and a three-wheel full-drive wheel type movement mode are used by the crawling mechanism, so that a robot can autonomously and flexibly move at all positions on the surface of an operating object, can be reliably adsorbed and can perform all-position welding operation, and the system is high in comprehensive performance.

A permanent magnet has a D-shaped cross section including an arcuate top surface (22), a flat bottom surface (24), and side surfaces (26, 28). Provided that a plurality of permanent magnets are circumferentially arranged so that a great circle (S) circumscribes the apexes (P) on the arcuate top surfaces (22), the top surface (22) includes a central region which delineates an arc of a small circle (T) off-centered from the great circle, and end regions (22a, 22b) which are positioned outside the small circle (T) and inside the great circle (S).

The invention discloses a walking piezoelectric rotary motor. A coaxial structure formed by a piezoelectric torsional actuator, two piezoelectric clamping bearing driver modules, two sleeves and a rotating shaft is adopted, wherein the two sleeves are fixed on the two ends of the piezoelectric torsional actuator respectively through adhesion, and two piezoelectric clamping bearing driver modules are fixedly connected with the two sleeves respectively through screws; each piezoelectric clamping bearing driver module is composed of a bearing unit and a piezoelectric stack, set pre-clamp force is applied to the rotating shaft through a bearing ring, and clamping movement is achieved through driving the bearing ring with the piezoelectric stack; step motion of the rotating shaft is achieved through controlling the timing sequence of the torsional movement of the piezoelectric torsional actuator and clamping movement of the two piezoelectric clamping bearing driver modules. According to the walking piezoelectric rotary motor, the layout of the structure is symmetrical, the structure is compact, micromation is applicable, and the operating efficiency and stability can be effectively improved.

The invention discloses an unfolding mechanism for a foldable double wing boards of an aircraft, comprising a fuel gas action device, a linear guiderail, a slider, connection rods and rockers. The linear guiderail is located on a perpendicular bisector of a rotation shaft connecting line of two wing boards and fixed on the aircraft body through a lower bracket; the slider is articulated with one ends of two connection rods; the fuel gas action device drives the slider to move linearly along the linear guiderail; the other ends of the two connection rods are respectively articulated with one end of one rocker; the other end of each rocker is articulated with a wing board rotation shaft fixed on a wing board bracket; under the push of the connection rods, the rockers rotate around the wing board rotation shaft fixed on the wing board bracket; one rocker is fixedly connected with a wing board shaft sleeve; and the rockers drive the wing board to rotate when rotating around the wing boardrotation shaft. The unfolding mechanism of the invention greatly improves the unfolding driving capability of the wing board and does not generate impact to the wing board bracket.

In cleaning devices, process cartridges and image forming devices, a cleaning structure with low linear pressure and high surface pressure can be obtained by specifying the material, shape and support structure of the cleaning blade. Press the front end corners of the elastic cleaning blade (38) supported by the so-called sheet holder, that is, the supporting member (37), on the roller-shaped and belt-shaped image carrier (10), and remove the residue remaining on the image carrier after image transfer. body toner. In such a cleaning device (16), the angle (θ) forming the front end corner line portion (36) of the cleaning blade is formed as an obtuse angle, and the front end corner line portion is formed at a surface pressure greater than or equal to 2.0 g/mm2. Press on the image carrier. The so-called surface pressure refers to the value obtained by dividing the total load applied to the cleaning blade by the contact area of ​​the cleaning blade with respect to the member to be cleaned.

The invention discloses a mechanical joint which comprises a first support and a second support. A first motor and a rotary shaft are fixedly disposed on the first support. The first motor is perpendicular to the axis of the rotary shaft. A second motor is fixedly disposed on the second support. The first motor and the second motor are direct current servo reduction motors. The axis of the first motor is perpendicular to that of the second motor. The second motor is parallel with the axis of the rotary shaft. The rotary shaft is rotatably disposed on the second support. A first gear is fixedly disposed on the rotary shaft. A second gear is disposed on a motor shaft of the second motor. The first gear is meshed with the second gear. The mechanical joint has a similar function to a globe joint and is compact and simple in structure. A sector spur gear reduction mechanism is added to the vertical joint, so that driving torque of the motor in the vertical direction is increased. On the basis, the invention further provides neck and tail structures of a bionic mechanical dinosaur.

The invention provides an improved optical fiber turbine flowmeter. The improved optical fiber turbine flowmeter is composed of a shell (1), a front flow guide element (2), a fore bearing (3), a rotating turbine (4), a rear bearing (5), optical fiber (6) and a rear flow guide element (7). The helix angle beta of rotating turbine blades (12) of the turbine flowmeter is designed to be 45 degrees, and the helix angle beta of front flow guide element blades (10) is designed to be 45 degrees, so that driving moment of the rotating turbine (4) is effectively increased, the starting flow rate is reduced, the range ratio is increased, and sensitivity is improved. In addition, the optical fiber (6) is sealed in rear flow guide element blades (16), an optical fiber probe end face (8) is effectively prevented from being polluted by fluid, and therefore the flowmeter can operate reliably for a long time. Flattening, silver film plating and trepanning are conducted in a 2mm region at the tail end a rotating shaft (14) to obtain a through hole (11) and a silver film plated surface (13) of the rotating shaft, different reflection rates are provided, rotating speed signals are converted into optical signals of pulse changes, and the rotating speed of the turbine is measured by measuring the reflected light impulse frequency.

The invention relates to a nine-axis control five-axis linkage bridge type machining center and a turning-milling combined machining center. The nine-axis control five-axis linkage bridge type machining center comprises a numerical control system, a Y-axis feeding mechanism, an X-axis feeding mechanism, a Z-axis feeding mechanism, a main axis and a direct-drive A-C cradle type rotary table, an electric spindle mechanism and a servo tool magazine mechanism, wherein the Y-axis feeding mechanism comprises a Y1 axis and a Y2 axis, and is connected with the X-axis feeding mechanism and the Z-axis feeding mechanism to form four linear feeding coordinate axes; the direct-drive A-C cradle type rotary table comprises an A1 axis, an A2 axis and a C axis, so that three rotating coordinate axes are formed; the main axis mechanism is the electric spindle mechanism; and the servo tool magazine mechanism serves as a rotating axis, namely a W axis, of a tool magazine

The invention discloses a mechanical limiting exoskeleton robot joint. The joint comprises a driving mechanism, a speed reducing mechanism, an executing mechanism and a feedback mechanism, and the exoskeleton robot joint can be driven to rotate at one degree of freedom. The driving mechanism is composed of a motor base, a motor, a rotating shaft, a rear end cover, a bearing, a stator check ring and a rotor check ring. The speed reducing mechanism is composed of a speed reducer, an output flange and a front end cover. The executing mechanism is composed of an upper connecting plate and a lowerconnecting plate. The feedback mechanism is composed of an absolute value encoder and a relative value encoder. A fan-shaped groove with the angle ranging from -6 degrees to 120 degrees is formed in the middle of the front end cover, a boss is designed for the output flange, the boss of the output flange is located in the fan-shaped groove of the front end cover after assembly and can move along the fan-shaped groove, therefore the relative rotation relation between the upper connecting plate and the lower connecting plate is converted into relative rotation between the front end cover and theoutput flange, and mechanical limiting is achieved. Hard limiting of the joint rotation angle is achieved through a mechanical structure, and the working safety and reliability of a robot are improved.

The invention relates to a wheel drive for driving a wheel of a vehicle, comprising an electric drive motor for generating a drive torque, a gear box for increasing the drive torque, and an articulated shaft having at least one joint for transferring the increased drive torque to the wheel. The electric drive motor is designed to surround the articulated shaft. The invention also relates to a vehicle comprising the wheel drive.

The invention relates to a high-power density electric vehicle motor, which comprises a rotor and a stator, wherein the stator is located in the rotor; a plurality of stator slots which are evenly distributed up and down are arranged in a circular region of the stator; an annular coil is arranged in each stator slot; the regions between the adjacent stator slots are magnetic-conducting regions; each magnetic-conducting region comprises magnetic poles, a winding slot bottom and annular windings; the magnetic poles are distributed in a straight line; the rotor comprises permanent magnets and inclined magnetizers; the permanent magnets are evenly arranged obliquely; the inclined magnetizers and the permanent magnets are correspondingly distributed; a small through hole or no through hole is formed in the center of the stator; and the structure of each stator slot is in a round shape or a roundish shape or a square shape with a round angle. The high-power density electric vehicle motor can improve the power density of the motor, especially can improve the torque density of the motor, and can fully develop the magnetic permeability and the frequency performance of a permeability magnetic material in structure.

A motor drive device for valve timing control of an internal combustion engine includes: a motor drive unit that controls a phase of a camshaft to drive a motor for controlling opening and closing operation of a valve; and a determination unit that determines whether a timing is to start up the motor or to normally drive the motor. The motor drive unit drives the motor with an advance angle when it is determined that the timing is to normally drive the motor by the determination unit, and the motor drive unit normally drives the motor without the advance angle when it is determined that the timing is to start up the motor.

Disclosed is a self-tapping screw with sawtooth threads. The end of a screw rod is a transition threaded area and is in the shape that the outer diameter is reduced and a circular truncated cone or a cone is extended. At least two to five circles or all of threads on the rod body or transition threaded area of the screw rod are sawtooth threads. The self-tapping screw can be easily screwed into an aluminum plate with the thickness of 4 mm and 1 mm, and tapping does not need to be carried out in advance, which the national-standard self-tapping screw pitch cannot easily complete.

The invention relates to a belt tensioning device for a crusher or a screening machine for tensioning at least one circulating drive belt (20) which is deflected about a belt pulley (12) of a drive (10) and has a load strand (21) and an empty strand (22). The drive (10) can be driven with a crushing assembly, a screening unit, a generator, or the like of the crusher by means of the drive belt (20). The vibrational stress acting on the machine chassis can be significantly reduced in that the belt tensioning device has two tensioning rollers (47), each of which is rotatably mounted on a holder (41, 51) of a tensioning part (40, 50). One tensioning roller (47) is paired with the empty strand (22) and the other is paired with the load strand (21). Additionally, the two tensioning parts (40, 50) can be adjusted relative to each other between an open position and a tensioning position, in which the tensioning parts are held against each other at least opposite the tensioning direction, in particular the tensioning parts can be blocked against each other, and the complete closed system can be freely moved linearly using actuators (44.2) according to the load situation.

The invention relates to a device (1) for winding a strip material (2) into a coil (3), comprising a rotor winder (4), which comprises two rotor lateral parts (6, 7) that can be rotated about a common rotor axis (5), which rotor lateral parts are spaced apart from each other in the axial direction (8) of the rotor axis (5) in such a way that rotationally driven winder mandrels (9) can be retained between the rotor lateral parts, wherein the device (1) comprises, outside of the rotor winder (4), two rocker parts (43, 44) that can be rocked independently of each other, which are supported in such a way that the two rocker parts can be pivoted in relation to the two rotor lateral parts (6, 7), wherein each of the rocker parts (43, 44) comprises an axial displacement apparatus (47), by means of which the winder mandrel (9A, 9B) retained on the rocker part (43, 44) can be displaced in the axial direction (8).

A method for influencing driving dynamics of a vehicle, in which the driving dynamics are influenced as a function of parameters allocated to a selected driving dynamics mode when the driving dynamics mode is activated, and the driving dynamics are influenced as a function of road state information representing a road state in the region of the vehicle when an automatic mode is activated.

The invention discloses an improved single-track pneumatic drill carriage device. The improved single-track pneumatic drill carriage device comprises a drill carriage chassis. A drilling actuating mechanism is arranged on the drill carriage chassis. The drill carriage chassis comprises a frame, a track frame is arranged on the frame and sleeved with the track, and thrust wheels are arranged on the inner side of the track; the drilling actuating mechanism comprises a guide rail, a rotary mechanism is arranged on the guide rail, the guide rail is fixed to a boosting air cylinder, and a silencer is arranged at the exhaust end of the rotary mechanism. The defects in the prior art can be overcome, and the improved single-track pneumatic drill carriage device is suitable for operation in a narrow roadway.