39results about How to "Improve torque transmission" patented technology

A coaxial transmission, especially a hollow shaft transmission for industrial drive engineering, having a high power density. The transmission comprises an input element (7), an element (3) and an output element, a drive torque being multiplied and transmitted between the input element (7) and the output element via a plurality of radially mobile toothed sections (5). At least one toothed section (5) has a bearing element (11) which is enlarged in its effective zone with respect to an input element (7).

An easily structured swing internal contact type planetary gear device is proposed which can achieve a higher meshing ratio when an involute tooth profile is adapted. Each of an internal tooth of an internally toothed gear wheel and an external tooth of an externally toothed gear wheel is formed with an involute tooth profile. Under a driving condition, one of an internal tooth body of the internally toothed gear wheel and an external tooth body of the externally toothed gear wheel is elastically deformed in an extending direction and the other thereof is elastically deformed in a contracting direction so that the number of meshing teeth becomes larger than the number of meshing teeth under a non-driving condition.

The invention relates to an endoscope guide wire, which solves the problem that the conventional guide wire is easy to break, the problem that the pushing capacity is poor, the problem that the position into which the guide wire is inserted is difficult to judge and the like. The endoscope guide wire comprises a metal core wire and a visual identification mark covered on the surface of the metal core wire. The technical key points of the endoscope guide wire include: the metal core wire is made of an integrative elastic metal wire without a junction surface; the visual identification mark is arranged between the end part of a base section and the front end of a conical section of the metal core wire, and comprises a direct viewing mark part and an X-ray developing part; the direct viewing mark part is formed by a first direct viewing mark color ring, a second direct viewing mark color ring and a third direct viewing mark color ring which are connected alternately and have different colors; the X-ray developing part is formed by X-ray developing metal or an X-ray developing agent-containing envelope; and an ultrathin hydrophilic coating is covered on the surface of the visual identification mark. The endoscope guide wire has a reasonable structure; and on the basis of ensuring the direct vision and X-ray visuality which are required by the endoscope guide wire, the pushing capacity, sliding performance and the like of the guide wire inserted into an endoscope channel are improved comprehensively, and the operability and safety of the endoscope guide wire are improved obviously.

The invention discloses an electric heating extrusion disc magneto-rheological and electromagnetic bearing bush friction combined transmission device. The electric heating extrusion disc magneto-rheological and electromagnetic bearing bush friction combined transmission device comprises a driving shaft, a driven shaft and a transmission shell, wherein the part, located in a driven shell, of the driving shaft is expanded to form a transmission section; two armature tiles are symmetrically arranged on the transmission section, and a guide column and a compression shape memory alloy spring are arranged in the middle of the inner side of each armature tile; a liquid containing groove is formed in the outer side of each armature ring, and each liquid containing groove is filled with magnetorheological fluid; extrusion discs are correspondingly arranged between two ends of the transmission section and a left end cover and between two ends of the transmission section and a right end cover, and the guide rods and the extrusion shape memory alloy springs are arranged at one sides, close to the transmission section, of the extrusion discs; a gap between the extrusion disc close to the left end cover and the left end cover and a gap between the extrusion disc close to the right end cover and the right end cover are also filled with magnetorheological fluid. According to the electric heating extrusion disc magneto-rheological and electromagnetic bearing bush friction combined transmission device, the influence of temperature on the magnetorheological fluid can be reduced, the transmission performance of the transmission device is improved, and the stability of torque transmission is ensured; and heat energy is fully converted and utilized, so that energy waste is reduced.

An apparatus is provided having an active material forming a surface thereof in contact with a rheological fluid. The active material is controllable to vary a surface geometry thereof between a rough or nonsmooth surface geometry to increase drag, and achieve an increase in stress transmitted through the fluid, when a field is applied, while allowing a smooth surface geometry and an associated reduction in stress transmitted through the fluid when the field is removed. A method of enhancing performance of an apparatus that includes a rdeological fluid is also provided.

An aerodynamic lifting device comprises a chassis (200); a rotor (120) having a rotational axis (R) and a plurality of rotor blades (123) disposed in an annular ring about the rotational axis (R) supported by the chassis (200); and a torque transmission means (126,130,139) to provide tractive force for rotating the rotor (120). The torque transmission means (126,130,139) co-operates with at least one complementary and circumferentially extending drive surface (126a, 126b) of the rotor (120) to transmit tractive force as tangential forces and resultant torque sufficient to drive the rotor (120) and thereby generate lift. The aerodynamic lifting device may be used in airborne craft which may be deployed for waterborne use with a buoyant chassis (200), especially of toroidal shape, for elevating the rotor (120) above a water surface (300) during take off and landing.

Out of a plurality of speed change gears on one of an input shaft and an output shaft, for example, on the output shaft, two adjacent speed change gears disposed via an axial space therebetween are axially fixed and rotatably fitted around the output shaft. A dog ring for a dog clutch disposed between the speed change gears is fixed around the output shaft and axially slidably fitted thereto. The speed change gears on the output shaft and the dog ring are each provided with an engagement portion for the dog clutch engaged and disengaged by axial shift of the dog ring. The two speed change gears on the input shaft meshing with the two speed change gears on the output shaft are provided integrally with the input shaft.

The invention discloses a monkey wrench, which comprises a wrench body and a worm wheel, wherein the wrench body comprises a handle and a working part; the working part comprises a fixed part, a moving part and a chute; the lower end of the moving part is arranged in the chute; the bottom edge of the lower end of the moving part is provided with a tooth part; the working part comprises a through hole; the worm wheel is arranged in the through hole and meshed with the tooth part; when the worm wheel is rotated, the worm wheel and the tooth part function to drive the moving part to move towards or away from the fixed part; and threads of the worm wheel have at least two spiral lines. The monkey wrench can quickly adjust the distance between the moving part and the fixed part, and increase the torque borne by the worm wheel.

The invention relates to a crawler track (10) for a crawler track vehicle (100) which is suitable for running on a drive wheel (110) and on bogie wheels (120). The crawler track has an outer ground contact side (2) and an inner wheel contact side (3). The inner wheel contact side (3) has a flat surface (4) from which a plurality of guidance horns (5) for guiding the crawler track during movement of the crawler track vehicle protrude. At least parts of the flat surface (4) are used as a running surface for the bogie wheels (120). Recesses (6; 6A, 6B) for the engagement of drive lugs (111) of the drive wheel (110) are provided in the flat surface (4).

The invention relates to a motorcycle pedaling and gear-shifting device, which comprises a gear-shifting pedal (1) and a drive rod (5), wherein one end of the gear-shifting pedal (1) is fixed with a gear-shifting pedal shaft (2); and the drive rod (5) is connected with an adapter coupling (4). The device is characterized in that one end of the gear-shifting pedal shaft (2) is connected with the gear-shifting pedal (1), while the other end is connected with the first adapter coupling (4) through a spline. The device combines a mounting shaft of the gear-shifting pedal and a mounting shaft of the drive rod into a whole to make the gear-shifting pedal have a compact structure, improves the gear-shifting torque transmitting efficiency and improves the whole structure strength of a gear-shifting operating mechanism so as to realize labor conservation and comfort during gear shifting. Because the structure is simpler and the dimension volume is smaller, the materials are saved, the manufacturing process is simplified, and the manufacturing cost is reduced.

The invention relates to a toothing (1), in particular of a drive spindle for driving a roll (13) in rolling mills or continuous casting plants, which comprises several teeth (2) and meshes with a second toothing in the manner of a spline, wherein a flank line (12) of the teeth (2) has a curvature and a deflection angle is formed between the rotational axis of the second toothing and the rotational axis of the toothing, wherein the toothing (1) is designed as having at least one of the following modifications: a tooth root relief of the teeth (2), and/or a tooth tip relief of the teeth (2), and/or a twist of the teeth (2).

An axle system is provided herein. In one example, the axle system includes a gearbox housing at least partially enclosing a gearbox and a planetary gearset that is rotationally coupled to an output of the gearbox and positioned co-axial with a rotational axis of an axle shaft in a differential. The planetary gearset includes a ring gear grounded by a planetary support that is attached to the gearbox housing.

The present invention relates to a rotor for an asynchronous machine, comprising a rotor shaft (10), rotor elements which are magnetically active in operation and comprise a sheet metal laminated core(11), short-circuit bars (12) and short-circuit rings (13, 14), pressure discs (15, 16), between which at least the sheet metal laminated core (11) is arranged, the pressure discs (15, 16) being axially connected to at least one of the rotor elements, and at least one form-fit element (17) which connects one of the pressure discs (15, 16) and one of the rotor elements, wherein a play or a gap (18) is formed between the sheet metal laminated core (11) and the rotor shaft (10), the pressure discs (15, 16) are connected to the rotor shaft (10) in a torque-transmitting manner and the form-fit element (17) connects one of the pressure discs (15, 16) and one of the rotor elements for transmitting a torque between the rotor shaft (10) and the rotor elements in the circumferential direction of the rotor shaft (10), wherein the torque is introduced by the rotor elements during operation. The invention further relates to an asynchronous machine and to the use of a pressure disc.

The invention provides a three-dimensional developing coronary artery guide wire which comprises a guide wire mandrel, wherein the guide wire mandrel comprises a torsion control section with an insulated periphery and a soft section fixedly connected to the front end of the torsion control section, the torsion control section is used for controlling operation of the guide wire, a first head end electrode is arranged at the head end of the soft section, and a second head end electrode is arranged at the tail end of the soft section, a second head end electrode is arranged at the position, located behind the first head end electrode, of the outer side wall of the soft section, a first tail end electrode is arranged at the tail end of the torsion control section, a second tail end electrode is arranged at the position, located in front of the first tail end electrode, of the outer side wall of the torsion control section, and the second head end electrode and the second tail end electrodeare exposed outside; the first head end electrode is electrically connected to the first tail end electrode, and the second head end electrode is electrically connected to the second tail end electrode. Through three-dimensional positioning and electrical characteristics, the use of X-rays can be greatly reduced finally, operation safety is improved, and radiation injury to patients and medical staffs is greatly reduced.

The invention aims at providing a round log sliding table saw with a saw blade replaceable at random. The round log sliding table saw with the saw blade replaceable at random comprises a T-shaped machine frame, a motor, an upper shaft mechanism installed on the machine frame, a lower shaft mechanism and a lifting mechanism. The round log sliding table saw with the saw blade replaceable at random can saw various diameters of timber, and does not limit the thickness and the width of a sheet material.

The invention relates to a clamping device of an adjustable steering column for motor vehicles, in which a support (4) securely connected to the vehicle chassis is connected to two clamping jaws (2, 3) containing the steering column, between which an axially and/or vertically adjustable casing tube (1) of the steering column for receiving a steering spindle (5) can be securely clamped, comprisinga clamping bolt (6) connecting the two clamping jaws (2, 3) which interacts with an application means (7) arranged on at least one of the two clamping jaws (2, 3), in such a way that the two clampingjaws (2, 3) securely clamp the casing tube (1) during a rotation of the clamping bolt (6) in the application direction about the bolt axis (19), and the clamping jaws (2, 3) release the casing tube (1) for steering column adjustment during a rotation of the clamping bolt (6) counter to the application direction, and comprising an actuating lever (10) secured on one end (13) of the clamping bolt (6) for rotating the clamping bolt (6), wherein according to the invention, the clamping device is improved to achieve a small installation space without projections, in that the actuating lever (10) iswelded to the clamping bolt (6).