Patents
Literature
65results about "Dobbies" patented technology
Efficacy Topic
Property
Owner
Technical Advancement
Application Domain
Technology Topic
Technology Field Word
Patent Country/Region
Patent Type
Patent Status
Application Year
Inventor
Ribbon loom driven by horizontally opposed crankshafts
The invention provides a ribbon loom driven by horizontally opposed crankshafts, which comprises a base rack provided with a crankcase, a crankshaft driving assembly is arranged in the crankcase and drives a heald frame opening mechanism through a connecting rod, and a cloth tape winding mechanism, a weaving mechanism and a weft yarn feeding mechanism are further arranged above the crankcase. The crankshaft driving assembly comprises a rear crankshaft set and a front crankshaft set which are horizontally and oppositely arranged, a first synchronous wheel and a second synchronous wheel in the rear crankshaft set are connected through a rear main shaft piece, and a driving belt wheel is installed on a motor piece and connected with the first synchronous wheel through a first synchronous belt. The front crankshaft set and the rear crankshaft set are driven to rotate synchronously, all heald frame openings in the heald frame opening mechanism operate synchronously according to the preset opening rhythm, openings are formed through the heald frame set, the openings reach the weaving mechanism to be woven into cloth belts, and then the cloth belts are wound into a container through the winding mechanism. The vibration and noise of the machine are reduced, and the overall processing efficiency of the ribbon loom is improved.
Owner:CKY PRECISION MASCH CO LTD
Cam opening swing arm structure of cam opening dobby loom
ActiveCN224212878Ureduce exposureAchieve dustproof effectDobbiesCam shedding mechanismClassical mechanicsCam
The utility model provides a cam opening swing arm structure of a cam opening dobby loom, which comprises a swing arm mechanism main body, a dustproof cover, a clamping piece and an adjusting bearing end, and an outer support body is arranged at the outer end of the right side of the inner composition of the swing arm mechanism main body. The swing arm mechanism has the beneficial effects that the swing arm mechanism main body, the clamping piece and the adjusting bearing end are additionally arranged, so that the adjusting bearing end is pulled to move left and right according to the position of a component connected with the adjusting bearing end in actual use; a clamping piece moves up and down to enable an upper clamping plate and a lower clamping plate to jointly clamp an adjusting bearing end and fix the adjusting bearing end through screws, so that the position of the adjusting bearing end can be adjusted, a swing arm mechanism body and a dustproof cover are additionally arranged, a connecting column is embedded into a connecting groove, a cover body is embedded into a dustproof cover groove, and therefore the adjusting bearing end can be adjusted. Contact between the bearing and the outside can be reduced through the dustproof cover, and therefore the dustproof effect is achieved.
Owner:QINGDAO DAPENG MASCH CO LTD
Electronic dobby air jet loom
The utility model relates to the technical field of spinning, in particular to an electronic dobby air jet loom, which comprises a spinning mechanism, a weft conveying mechanism and a driving mechanism, the weft conveying mechanism is positioned on the left side of the spinning mechanism, the driving mechanism is positioned at the right end of the weft conveying mechanism, and the spinning mechanism comprises a spinning frame. A swinging roller is movably installed on the front side of the middle in the spinning frame, a weft swinging frame is fixedly installed at the top end of the swinging roller, a weft spraying device is fixedly installed on the upper side of the left end of the weft swinging frame, an air spraying block is fixedly installed at the top end of the weft spraying device, and a lower spraying pipe is fixedly installed on the air spraying block; the swinging roller drives the weft swinging frame to swing back and forth, the weft spraying device drives weft to be interwoven with warp through airflow generated when gas is sprayed out, the interwoven weft is cut off by the yarn cutter to enable cloth to be formed, the lower spraying block is driven by the air spraying block to spray air, the cut-off weft can be rapidly separated, and therefore the cloth can be formed. The situation that the weft fallen to the warp and weft interweaving position and cannot complete the next round of yarn spraying is avoided.
Owner:JIANGSU RUIDE MACHINERY CO LTD
Shedding machine for a loom and shedding assembly for a loom comprising a group of such machines
The present invention relates to a fluidic connection device, comprising a flange, and a nozzle through which passes a distal internal channel, and which is configured so as to be fluidically coupled to a complementary connection device. The nozzle, mounted in the flange with the possibility of tilting relative to the flange, comprises a rear end, and a front end. The invention also includes a rod comprising an intermediate internal channel; a front end, mounted in sealed cooperation with the rear end of the nozzle with the possibility of tilting of the rod relative to the nozzle and relative to the flange, for fluidic communication between the distal internal channel of the nozzle and the intermediate internal channel of the rod; and a rear end for fluidic communication between a proximal internal conduit and the intermediate internal channel.
Owner:STAUBLI FAVERGES SA
Lubricating device of dobby
The utility model relates to the technical field of dobby machines, in particular to a lubricating device of a dobby machine, which comprises an oil tank body and an oil tank assembly, the oil tank assembly comprises a shaft rod, a swing arm, a floating ball, a pointer and a dial, the shaft rod extends into the oil tank body and is rotatably connected with the oil tank body, and the swing arm is sleeved outside the shaft rod and fixedly connected with the shaft rod. The floating ball is fixedly connected with the swing arm and located at one end of the swing arm, the pointer is fixedly connected with the shaft rod and located on the outer side of the oil tank body, and the dial is fixedly installed on the oil tank body and located on the side, close to the pointer, of the oil tank body. However, the toothed plate has a certain length, the stroke of the floating plate is seriously shortened, and when the oil storage amount of the oil tank exceeds the floating plate, the oil storage amount in the oil tank cannot be accurately measured.
Owner:XIAN BINTIAN MASCH CO LTD
Hooking device between a stringer frame and a lever and method of lubricating such a device
Attachment device between a heald frame and a lever and method for lubricating such a device Attachment device comprising a fastener (8) configured to be secured to a heald frame, and comprising two flanges (12, 12'), an inner ring (16) mounted between the flanges, and provided with orthoradial slots (16C) formed on its external peripheral surface (16B), and a ring with a polygonal profile (14) comprising a greaser (24) and a bore (15) to be mounted in rotation around the inner ring. The attachment device comprises a hook, with a locking member capable of holding the hook in cooperation with the ring with a polygonal profile. According to the invention, the ring with a polygonal profile (14) comprises grooves (30) for receiving a lubricant, formed on the surface (15A) of its bore (15). Figure for the abstract: Figure 5
Owner:STAUBLI FAVERGES SA
Electronic multi-arm detection control method, system and equipment
The invention provides an electronic dobby detection control method, system and equipment, and relates to the technical field of intelligent control of textile machinery, and the method comprises the steps: collecting a multi-source monitoring data set in the operation process of an electronic dobby shedding device; performing on-off state detection on the electromagnetic driving unit of each electronic dobby in sequence to generate an electromagnetic abnormality diagnosis result; comparing the action time sequence data on the basis of a preset movement track, and generating an abnormal action judgment result of each electronic dobby; performing multi-dimensional abnormal correlation analysis in combination with oil level information of the hydraulic system, and constructing a multi-factor coupling state evolution chain; and carrying out abnormal hierarchical positioning, generating a self-adaptive adjustment strategy, and carrying out self-adaptive feedback control. The technical problems that in the prior art, electronic multi-arm detection mostly depends on single-type signal detection, the running state of equipment cannot be evaluated timely and comprehensively, an effective diagnosis and early warning mechanism for equipment abnormity is lacked, and then the stability and production efficiency of the equipment are difficult to guarantee are solved.
Owner:JIANGSU NIUPAI TEXTILE MACHINERY
Dobby loom with connecting rod protection structure
The dobby loom with the connecting rod protection structure comprises a shell and a discharging port, the front side and the rear side of the right end of the shell are each provided with a side limiting rail used for being embedded with the lower end of an adjusting component in a mutual limiting mode, and the inner side of each side limiting rail is provided with an adjusting component used for adjusting the guiding tension of yarn weaving materials. A set of driven rotating heads used for being in power connection with a driving shaft are arranged at the front end of the left side of the shell, a set of transmission chains used for conducting power transmission are arranged on the outer sides of the driven rotating heads, and a set of driving teeth used for outputting motor power are arranged on the inner sides of the lower ends of the transmission chains. Compared with the prior art, the yarn guiding device has the advantages that the driving shaft is used for driving the material guiding roller to rotate, the guiding roller is used for conducting protection guiding on weaving yarn materials, the protection roller is used for conducting self-adaptive relaxation protection on the tensioning degree of the weaving yarn materials, and a plurality of sets of rotation dampers are used for providing tension supporting for the weaving yarn materials.
Owner:QINGDAO DAPENG MASCH CO LTD
Design method of spur-face gear transmission for high-speed rotary dobby
The present invention provides a design method for a spur-face gear transmission for a high-speed rotary dobby. The method replaces the Gleason-toothed spiral bevel gear pair between the dobby's drive shaft and cam output mechanism with a spur face gear pair. Based on the relevant parameters of the bevel and gear pinions of the spiral bevel gear pair, the corresponding parameters of the spur and face gears of the replaced spur face gear pair are calculated. This method achieves orthogonal transmission and increased speed without changing any parts or interfaces in the dobby except for the gear profile. The structure is simple to install, lightweight, and space-saving. Its point contact characteristics are unaffected by installation errors, ensuring consistent motion and high versatility.
Owner:TIANJIN POLYTECHNIC UNIV +1
Jacquard dobby integrated spinning equipment
The invention relates to jacquard dobby integrated spinning equipment which comprises a dobby, the dobby comprises a plurality of lifting blades arranged in the X direction in the horizontal plane and a plurality of heald frames arranged in the Y direction in the horizontal plane, the lifting blades and the heald frames are arranged in a one-to-one correspondence mode and connected through transmission assemblies, and the lifting blades are used for lifting the heald frames in the Z direction; the heald frame is used for raising a part of warps in the Z direction, and a protective beam is arranged on one side of the plurality of lifting blades in the X direction; the jacquard machine comprises a plurality of jacquard cutters and lifting assemblies, the jacquard cutters are arranged in the X direction in the horizontal plane, the jacquard cutters lift the rest of warps in the Z direction through the lifting assemblies, and in the X direction, the lifting assemblies are arranged between the cutter lifting blades and the protection beam in a penetrating mode. The lifting assembly passes through the dobby and is equivalently mounted in the dobby, so that the size is not increased in the X direction, and the speed and efficiency of the textile equipment are improved.
Owner:SUZHOU XINGYU TEXTILE MACHINERY CO LTD
STM32-based electronic dobby
The invention provides an STM32-based electronic dobby. The STM32-based electronic dobby structurally comprises a man-machine interaction screen, an electronic control cabinet, a damping structure, a metal loading frame and a heald lifting arm, the man-machine interaction screen is embedded into the side edge of the electronic control cabinet, and the lower end of the electronic control cabinet is embedded into the side edge of the damping structure; after a damping structure is improved, the positions of the clamping plates are determined through the parallel plates and the inserting blocks, then the clamping plates cover the edge of the metal loading frame through the damping plates in the clamping grooves, and the metal loading frame can be limited through the magnetic suction plates and the restraining blocks in the process; therefore, when multiple groups of heald lifting arms operate, kinetic energy conducted by the heald lifting arms can be absorbed through the clamping plates and the damping plates, the stability of the whole metal loading frame is improved, the original point positioning strength of the electronic control cabinet is improved by utilizing the reinforcing structure, the situation that a circuit is pulled and falls off due to instability of the electronic control cabinet is prevented, and the service life of the electronic control cabinet is prolonged. And the connection stability of the lifting heald arm, the internal component circuit of the metal loading frame and the electronic control cabinet is improved.
Owner:JIAN COLLEGE
Intelligent shed width adjusting control method suitable for wide fabric production
The invention discloses a shed intelligent width adjusting control method suitable for wide fabric production, and relates to the technical field of textile machinery automation control. The method is used for solving the problem of weft insertion interference caused by gravity collapse of wide warp yarns, and comprises the following steps: firstly, calculating the maximum static droop amount of the warp yarns, superposing the minimum clearance height, and defining a minimum suspension height threshold value; then, the warp height is collected in real time through laser and compared with a threshold value, and the dynamic interference depth is quantified; thirdly, an optimal heald leveling phase advance angle is sought, warp yarns are straightened through the instantaneous tension hardening effect to eliminate interference, and an optimal driving time sequence is generated; finally, closed-loop compensation is carried out based on the flight time lag of the weft yarn, phase parameters are adjusted in a self-adaptive mode, safe weft insertion is achieved on the premise that the opening stroke is not increased, and the fabric quality is improved.
Owner:GUANGZHOU GUANGQIAN TEXTILE CO LTD
Common single-opening electronic multi-arm driven built-in double-opening device
Owner:JIANGSU YOUCHENG CNC TECH CO LTD +1
Scaffolding machine
This shed forming machine includes: an output rod (14) that pivots about a common axis (22) centered on a longitudinal axis (A22); a cover; a frame; and sealing devices (40, 52, 54) comprising sealing struts (40) stacked along the common axis and at least one seal (52, 54). Each sealing strut includes a strip (402) and an inner radial edge. The seals (52, 54) extend in a principal direction parallel to the longitudinal axis (A22) of the common axis (22) and abut a fixed portion of the machine. Each sealing strut (40) is provided with at least one groove (416, 436) extending parallel to the principal axis (A40) of the sealing strut (40) and opening on one side of each sealing strut. The grooves of the sealing struts of the sealing devices (40, 52, 54) collectively define channels (G2, G4) for receiving the heel of the seal.
Owner:STAUBLI FAVERGES SA
Yarn jumping automatic stop device of dobby loom
The utility model provides a dobby loom yarn jumping automatic stop device, which comprises a device main body, a connecting piece and a torsion spring piece, and the left upper end of the internal composition of the device main body is provided with a yarn sensing piece used for sensing yarns during yarn leading. Compared with the prior art, the device has the advantages that the device body, the connecting piece and the torsion spring piece are additionally arranged, yarn drives the yarn sensing piece to rotate around the rotating shaft through the yarn hook piece, the left end of the telescopic rod moves upwards, the automatic stop pressing column moves upwards, and the center column does not make contact with the pressure sensor; after the yarn is separated from the yarn hook piece, the yarn sensing piece automatically rotates under the action of the torsion spring piece, the automatic stop pressing column moves downwards to press the pressing spring, the center column slowly gets close to the pressure sensor, when a set of yarn does not drive the yarn sensing piece to rotate, the center column can make contact with the pressure sensor to sense the pressure sensor, and the dobby loom is controlled to be shut down through the frequency converter. Yarn jumping automatic stop can be achieved, and the torsion spring piece can be disassembled and assembled by additionally arranging the device body, the connecting piece and the torsion spring piece.
Owner:QINGDAO DAPENG MASCH CO LTD
A spindle lubrication mechanism for a rotary textile multi-arm machine
The utility model relates to the technical field of spindle lubrication of textile multi-arm machines, and specifically to a spindle lubrication mechanism of a rotary textile multi-arm machine, comprising a spindle and a lubricating mechanism, wherein the lubricating mechanism comprises a support plate, a cylinder, an oil tank, a pump body, a pipeline, a fixed plate and an oil-absorbing sponge, wherein the cylinder is fixedly connected to the support plate and is located above the support plate, the output end of the cylinder is fixedly connected to the oil tank, the pump body is fixedly connected to the oil tank, the pump body is started, and the oil in the oil tank is pumped into the pipeline, and then absorbed by the oil-absorbing sponge, at which time the cylinder is started to drive the oil tank to move, so that the spindle is located inside an opening and gradually contacts the oil-absorbing sponge, and at the same time the spindle is driven by the multi-arm machine to rotate, thereby completing the application of the lubricating oil, and the excess oil will drip into the oil tank, thereby facilitating the collection of the lubricating oil, and there is no need to operate by spraying, thereby avoiding the situation that the oil splashes and the spraying are uneven during spraying, and greatly reducing the waste of the lubricating oil.
Owner:XIAN BINTIAN MASCH CO LTD
Straight tooth-face gear transmission design method for high-speed rotary dobby
The invention provides a straight tooth-face gear transmission design method for a high-speed rotary dobby, which comprises the following steps of: replacing a Gleason tooth spiral bevel gear pair between a driving shaft and a cam output mechanism in the dobby with a straight tooth face gear pair, and designing a straight tooth face gear pair on the basis of relevant parameters of a bevel pinion and a bull gear of the spiral bevel gear pair; and calculating and determining corresponding parameters of the straight spur gear and the face gear of the replaced straight tooth face gear pair. According to the invention, on the premise of not changing any parts and interfaces except the tooth form of the gear in the dobby, orthogonal transmission and rotation speed increase can be realized, the structure is simple to mount, and the characteristics of light weight and space saving are realized; the point contact characteristic is not affected by installation errors, the movement consistency of the dobby can be guaranteed, and the dobby has high universality.
Owner:TIANJIN POLYTECHNIC UNIV +1
Shedding machine for a loom and shedding assembly for a loom comprising a group of such machines
A fluidic connection device, including a flange, and a nozzle through which passes a distal internal channel, and which is configured so as to be fluidically coupled to a complementary connection device. The nozzle, mounted in the flange with the possibility of tilting relative to the flange, includes a rear end, and a front end. The invention also includes a rod including an intermediate internal channel; a front end, mounted in sealed cooperation with the rear end of the nozzle with the possibility of tilting of the rod relative to the nozzle and relative to the flange, for fluidic communication between the distal internal channel of the nozzle and the intermediate internal channel of the rod; and a rear end for fluidic communication between a proximal internal conduit and the intermediate internal channel.
Owner:STAUBLI FAVERGES SA
Rotary shaft machine and weaving machine with such a shaft machine
Owner:STAUBLI FAVERGES SA
Shedding machine for a loom and adjustment method
A crowd-forming machine (2) comprising: an eccentric system (30) rotating about a main axis (X20); a lever (50); and a connecting rod (40) pivotally coupled to the eccentric system and the lever about eccentric (X41) and connecting rod (X42) axes separated by a connecting rod center distance (R2), the main axis (X20) and the eccentric (X41) axis being separated by an eccentric center distance (R1). To facilitate adjustment of the stroke of a frame of beams actuated by the machine, it includes an adjustment system allowing: an adjustment configuration where the eccentric (R1) or connecting rod (R2) center distance is adjustable, and a locked configuration where these distances are fixed. The machine (2) includes a locking system (80), which allows lever locking and lever release configurations.
Owner:STAUBLI FAVERGES SA
Transmission mechanism of opening device of electronic dobby
The utility model relates to the technical field of transmission mechanisms, and discloses a transmission mechanism of an opening device of an electronic dobby, which comprises a main body mechanism, the top of the main body mechanism is provided with a fixing mechanism, and two sides of the main body mechanism are fixedly connected with sliding mechanisms. By means of the cushion block and the connecting column arranged at the bottom of the main body mechanism, the machine body can be prevented from shaking when the device works, knitting is not affected, the stability of the device can be improved, by means of the arranged bobbin, the bobbin can be replaced, the practicability of the device can be improved, and the practicability of the device is improved. Through the arrangement of the driving shafts and the grips, the different grips can be manually operated to drive the driving shaft on one side so as to change the width of woven cloth, so that the diversity of the device is improved, through the arrangement of the sliding machine, a bobbin can be dyed while the device is used for weaving, and the weaving efficiency is improved. Therefore, the device can weave different patterns and effects, and the portability of the device is improved.
Owner:江苏苏美特机械有限公司
Opening mechanism for a weaving machine and method for adjusting the same
An opening machine for a weaving machine and a method for adjusting the same are disclosed. The opening machine (2) comprises an eccentric system (30) rotatable about a main axis (X20), a lever (50), and a transmission bar (40) coupled to the eccentric system and pivotally coupled to the lever about an eccentric axis (X41) and a connecting bar axis (X42), the eccentric axis and the connecting bar axis being spaced apart by a connecting bar center distance (R2), the main axis (X20) and the eccentric axis (X41) being spaced apart by an eccentric distance (R1). To facilitate adjustment of the stroke of a heald frame operated by the opening machine, the opening machine comprises an adjustment system allowing: an adjustment configuration in which the eccentric distance (R1) or the connecting bar distance (R2) is adjustable; and a locking configuration in which these distances are fixed. The opening machine (2) comprises a locking system (80) allowing a lever locking configuration and a lever release configuration.
Owner:STAUBLI FAVERGES SA
Technical training machine for a web machine and its regulation procedure
Owner:STAUBLI FAVERGES SA
Rolling bearing provided with a flange having an axial fold and method for manufacturing same
The invention relates to a rolling bearing (10) having two bearing rings (12, 14), rolling bodies (18) accommodated in an annular volume (16) between the two bearing rings (12, 14), and at least one first annular flange (26) rigidly attached to a first of the two bearing rings (12, 14) and extending radially from the first of the two bearing rings (12, 14) to the second of the two bearing rings (12, 14). The first flange (26) has an annular end portion which has an axial fold (28) accommodated in an axial recess (34) in an annular guiding face of the second of the two bearing rings.
Owner:NTN EUROPE
Transmission structure of high-speed electronic spinning dobby
The utility model relates to the technical field of dobby transmission structures, in particular to a high-speed electronic spinning dobby transmission structure which comprises a bottom plate, a rotating roller, two adjusting units and a linkage assembly, each adjusting unit comprises a first guide rail, a first sliding block, a circular ring, a connecting rod, a rack and a gear, and the linkage assembly comprises a bilateral rack and an air cylinder. The air cylinder is started, the output end of the air cylinder pushes the double-side rack to move, then the gear is driven to rotate, the gear drives the rack and the connecting rod to move, then the circular ring is driven to move, the width and length of the textile cloth capable of being placed on the rotating roller are adjusted, the application range of the device is widened, and practicability is high.
Owner:XIAN BINTIAN MASCH CO LTD
Shedding machine and shedding assembly comprising a group of such machines
The machine (9) comprises a rotary electric motor, a crank, a driving lever and a driving rod. The stator (23) of the motor comprises winding laminations (33), extending radially between a stator outer diameter (D23e) and a stator inner diameter (D23i), and electrical windings (39). The rotor (29) of the motor comprises a rotor shaft (51), centered on a main axis (A1), surrounded by a cylindrical portion (53) of the rotor and secured to the cylindrical portion and the crank, and permanent magnets (57). A ratio of the external stator diameter (D23e) to a length (L53) of the cylindrical part (53), measured parallel to the main axis without exceeding the permanent magnets, is between 2.0 and 4.0, preferably between 2.5 and 3.5, more preferably between 2.8 and 3.2.
Owner:STAUBLI FAVERGES SA
Transmission mechanism of shedding device of rotary electronic dobby
The utility model relates to the technical field of textile machinery, in particular to a transmission mechanism of an opening device of a rotary electronic dobby, which comprises a transmission bin, a mounting structure, a lubricating box, a filter screen, a moving component, a cleaning brush, a slide rail and an opening and closing door. The moving assembly is fixedly connected with the lubricating box, located at one end of the lubricating box, penetrates through the lubricating box and the sliding rail to be fixedly connected with the lubricating box and located at the right end of the interior of the lubricating box, the opening and closing door is detachably connected with the lubricating box and located at the left end of the lubricating box, and one end of the cleaning brush is detachably connected with the moving assembly and located at one end of the moving assembly. And the other end of the cleaning brush is in sliding connection with the sliding rail and is located in the sliding rail, and through the structural arrangement, the problems that when the filter screen is cleaned, the filter screen needs to be taken out through the placing ring, the filter screen can be taken down to be cleaned, and use is inconvenient are solved.
Owner:XIAN BINTIAN MASCH CO LTD
Double-opening loom
The invention relates to the technical field of textile machinery, and discloses a double-opening loom which comprises a loom body, a double-warp-beam mechanism is installed in the bottom of the loom body, a transmission mechanism is movably connected to the outer side of the double-warp-beam mechanism, an adjusting device is installed on the outer side of the double-warp-beam mechanism, and the adjusting device is movably connected with the transmission mechanism. A control system is arranged on the outer side of the loom body. According to the double-opening loom, through the cooperative structure of upper warp beam jacquard and lower warp beam dobby, the high-complexity pattern weaving of a jacquard machine and the high-efficiency production characteristic of a dobby machine are synchronously achieved on single equipment, the limitation of single function of traditional equipment is broken through, the electric adjusting device is meshed with the gear, and real-time switching of the transmission ratio is achieved through electric control; power transmission is flexibly adjusted according to fabric pattern complexity and production efficiency requirements, the synchronous compensation device monitors and compensates position deviation of the two parts in real time, synchronous errors are controlled within an extremely small range, fabric pattern precision is effectively improved, and the defective rate is reduced.
Owner:GUANGDONG FENGKAI MASCH CO LTD
Crowd-forming machine and crowd-forming assembly comprising a group of such machines
Crowd-forming machine and crowd-forming assembly comprising a group of such machines. The machine (9) includes a rotary electric motor, a crank, a drive lever, and a drive rod. The motor stator (23) includes winding laminations (33) extending radially between an external stator diameter (D23e) and an internal stator diameter (D23i), and electrical windings (39). The motor rotor (29) includes a rotor shaft (51) centered on a main axis (A1), surrounded by a cylindrical portion (53) of the rotor and integral with the cylindrical portion and the crank, and permanent magnets (57). The ratio of the stator's external diameter (D23e) to a length (L53) of the cylindrical portion (53), measured parallel to the main axis without exceeding the permanent magnets, is between 2.0 and 4.0, preferably between 2.5 and 3.5, and even more preferably between 2.8 and 3.2. (See Figure 3 for abbreviations.)
Owner:STAUBLI FAVERGES SA