Built-in symmetrical double-output-shaft star wheel speed reducer and permanent magnet direct drive device thereof
Technical Field
The invention relates to the technical field of mechanical equipment, in particular to a built-in symmetrical double-output-shaft star wheel speed reducer and a permanent magnet direct drive device thereof.
Background
The traditional speed reducer is poor in usability, large in size and complex in structure, double-end-face double-symmetrical input cannot be carried out, and the traditional crane lifting mechanism comprises a hoisting type lifting mechanism and an electric hoist type lifting mechanism, and is composed of an external motor, a brake, a coupler and a parallel shaft speed reducer, the U-type lifting mechanism is arranged, the whole structure is complex, the energy consumption is high, simple direct driving cannot be realized, the hoisting type lifting mechanism is usually a lifting mechanism for high working level and complex transmission, the overall size is large, the dead weight is large, and the electric hoist type lifting mechanism is light in dead weight and small in size, but is usually low in working level.
The existing permanent magnet direct drive mechanism can overcome the technical defects of the traditional lifting, has excellent performance, and many advantages that the traditional lifting mechanism cannot be realized, but the gearless outer rotor permanent magnet direct drive mechanism has the problem of relatively high cost on the small lifting mechanism below 32 tons, so the permanent magnet direct drive mechanism which is arranged between the gearless permanent magnet direct drive mechanism and the traditional lifting mechanism has compact structure, light dead weight, high working level, energy conservation and moderate cost and is provided with a novel speed reduction transmission device is urgent to be researched and developed, and therefore, the design of the built-in symmetrical double-output-shaft star wheel speed reducer and the permanent magnet direct drive device thereof is urgent to solve the problems.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides a built-in symmetrical double-output-shaft star wheel speed reducer and a permanent magnet direct drive device thereof.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
The utility model provides an internally-arranged symmetry two play axle star gear reducer, includes the star gear reducer body, one side of star gear reducer body is provided with the axle sleeve, one side of axle sleeve is provided with the flat key, one side of star gear reducer body is provided with the ring flange, and one side of ring flange is provided with the front end housing, one side of front end housing is provided with preceding supporting disk, the inside of star gear reducer body is provided with the oil blanket, one side of oil blanket is provided with the oil jacket, the flat key is connected with the input shaft through the oil jacket, the outside of input shaft is provided with the distance ring, one side of distance ring is provided with eccentric sleeve, and one side of distance ring is provided with cylindrical roller bearing, one side of ring flange is provided with preceding supporting disk, one side of preceding supporting disk is provided with planetary gear, the front end housing is provided with the inner gear through the hexagon socket head cap screw, the inside of star gear reducer body is provided with the bush, one side of preceding supporting disk is provided with back supporting disk, the connecting hole has all been seted up to the inside of back supporting disk, and supports three star in the connecting hole.
Further, the planetary gear is meshed with the internal gear, and two sides of the star wheel speed reducer body can be used as input ends.
Further, the rear supporting disc is connected with a motor base through an internal thread cylindrical pin, one side of the motor base is provided with a rear end cover, the inside of the star wheel speed reducer body is provided with a positioning ring, and one side of the cylindrical roller bearing is provided with a circlip for holes.
The utility model provides an internally-arranged symmetry two play axle star gear reducer and permanent magnetism direct drive device thereof, includes left base, right base, with reel and star gear reducer body, its characterized in that, star gear reducer body passes through the ring flange to be connected in the inside one side of reel, one side welding of left base is in one side of reel, the opposite side welding of reel is in one side of right base, there is the stopper at the top of left base through bolted connection, the opposite side of the inside of reel is through bolted connection there is the motor.
Further, reel components are arranged on two sides of the star wheel speed reducer body, and a coupler is arranged on one side of the star wheel speed reducer body.
Further, one side of the motor is connected to one side of the star wheel speed reducer body through a coupler, the other side of the motor is connected to one side of the right base through a bolt, a supporting ring is arranged between the coupler and the motor, a bearing is arranged on one side of the right base, and a height limiter is connected to one side of the right base through a bolt.
Further, a guide rod assembly is arranged on the other side of the winding drum, a rope guide is connected to one side of the guide rod assembly through a bolt, a rope pressing device is arranged on one side of the winding drum, and a positioning rod assembly is arranged on one side of the winding drum.
The beneficial effects of the invention are as follows:
The star wheel speed reducer has small volume, light weight and compact structure, is particularly suitable for being arranged in a winding drum, has high speed, can realize that the maximum speed ratio reaches i=90 and less, has high output torque, is arranged in the winding drum, does not occupy the external space of a lifting mechanism, utilizes an end connecting flange of the winding drum as a mounting reference surface and support, can realize that both ends are input shafts (symmetrical input), the outer shell of the star wheel speed reducer outputs torque, the front supporting disc is specially-shaped, is not only a matrix assembled by the whole star wheel speed reducer, but also a loaded matrix (connected with an external supporting seat of the lifting mechanism), the rear supporting disc is specially-shaped and internally-sunk, the holes support three eccentric star wheel shafts, the outer shell output is required to be attached to the winding drum, the rotation and torque input can be realized, the two end faces are symmetrically input, the double braking is realized conveniently, namely one brake is used, because the torques of the brakes at two ends are the same (the common speed reducer ratio is shared relative to the output of an outer circle), as for the braking, the single braking can be realized, the double braking can be realized, for example, the outside adopts a brake (wheel type braking or disc type braking), the inside adopts a braking motor (motor with disc type braking of a motor body), compared with the traditional lifting mechanism with corresponding parameters, the lifting mechanism has smaller volume and more compact structure, the volume of a trolley can be reduced, the left and right limit sizes of the operation of the trolley are reduced, the effective operation area of the crane in a span is improved, the star wheel speed reducer is used as a special type planetary speed reducer, the transmission efficiency is high, the bearing capacity is high, the structure is compact, the transmission is stable, the noise is low, the motor has the characteristic of matching with the load, the lifting mechanism has the advantages that energy is saved greatly, the noise is low, compared with a traditional lifting mechanism with corresponding parameters, the weight of the lifting mechanism is lighter, the weight of the lifting trolley can be reduced, the wheel pressure of the lifting trolley is reduced, the fatigue life of a steel structure of a crane is prolonged, a transmission chain is shorter, the loss is less, the transmission efficiency is higher, the lifting mechanism is required to be installed by multiple bases compared with the traditional U-shaped arrangement lifting mechanism, and the direct driving mechanism is in a left base installation mode and a right base installation mode and has high coaxiality.
Drawings
Fig. 1 is a schematic structural diagram of a built-in symmetrical double-output-shaft star wheel speed reducer and a permanent magnet direct drive device thereof;
fig. 2 is a schematic structural diagram of a built-in symmetrical double-output-shaft star wheel speed reducer and a permanent magnet direct drive device thereof according to the second embodiment of the invention;
Fig. 3 is a schematic structural diagram of a built-in symmetrical double-output-shaft star wheel speed reducer and a permanent magnet direct drive device thereof;
fig. 4 is a schematic structural diagram of a star wheel speed reducer with a built-in symmetrical double-output-shaft star wheel speed reducer and a permanent magnet direct drive device thereof;
Fig. 5 is a front view of a planetary gear set with a built-in symmetrical double-output-shaft planetary gear reducer and a permanent magnet direct drive device thereof;
fig. 6 is a front view of an internal gear of the internal symmetric double-output-shaft star wheel speed reducer and the permanent magnetic direct drive device thereof;
fig. 7 is a front view of a flange plate of a built-in symmetrical double-output-shaft star wheel speed reducer and a permanent magnet direct drive device thereof.
In the figure: the device comprises a left base, a2 brake, a3 star wheel speed reducer, a4 drum assembly, a 5 coupler, a 6 support ring, a 7 motor, an 8 rope pressing device, a 9 bearing, a 10 right base, an 11 height limiter, a12 guide rod assembly, a 13 rope guide device, a 14 positioning rod assembly, a 15 drum, a 16 star wheel shaft, a 17 bushing, a 18 shaft sleeve, a 19 flange plate, a 20 front end cover, a 21 front support disc, a 22 distance ring, a 23 eccentric sleeve, a 24 planetary gear, a 25 inner gear, a 26 rear support disc, a 27 rear end cover, a 28 motor seat, a 29 positioning ring, a 30 oil jacket, a31 input shaft and a 32 oil seal.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When a component is considered to be "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1 to 7, a built-in symmetrical double-output-shaft star wheel speed reducer comprises a star wheel speed reducer body 3, wherein a shaft sleeve 18 is arranged on one side of the star wheel speed reducer body 3, a flat key 33 is arranged on one side of the shaft sleeve 18, a flange 19 is arranged on one side of the star wheel speed reducer body 3, a front end cover 20 is arranged on one side of the flange 19, a front supporting disc 21 is arranged on one side of the front end cover 20, an oil seal 32 is arranged in the star wheel speed reducer body 3, an oil jacket 30 is arranged on one side of the oil seal 32, the flat key 33 is connected with an input shaft 31 through the oil jacket 30, a distance ring 22 is arranged outside the input shaft 31, an eccentric sleeve 23 is arranged on one side of the distance ring 22, a cylindrical roller bearing is arranged on one side of the flange 19, a front supporting disc 21 is arranged on one side of the front supporting disc 21, an inner gear 25 is connected on one side of the front end cover 20 through an inner hexagonal screw, a lining 17 is arranged on one side of the front supporting disc 21, a rear supporting disc 26 is arranged on one side of the rear supporting disc 26, connecting holes are formed in the inner supporting disc 26, three inner supporting bodies are all connected with one another through connecting holes, and the three planetary wheel speed reducer bodies 3 are in a high-speed reducer efficiency speed reducer body, namely, the speed reducer has a high transmission efficiency and can be used as transmission shafts 3, and can bear high and have high transmission efficiency, and can be used as transmission shafts 3, and have high and can be used as transmission shafts and can be driven.
Further, the planetary gears 24 are meshed with the inner gears 25, two sides of the star wheel speed reducer body 3 can be used as input ends, the star wheel speed reducer body 3 is used as a coaxial input mode with the motor 7, an outer gear ring circumferential output transmission mode is adopted, the planetary gear speed reducer body and the motor 7 can be built in the winding drum 15 together, the appearance integration of the motor 7, the star wheel speed reducer body 3 and the winding drum 15 is achieved, and the size and the weight of the lifting mechanism are greatly reduced.
Further, the rear supporting disc 26 is connected with a motor base 28 through an internal thread cylindrical pin, a rear end cover 27 is arranged on one side of the motor base 28, a positioning ring 29 is arranged in the star wheel speed reducer body 3, and a hole circlip is arranged on one side of the cylindrical roller bearing.
The utility model provides an internally-arranged symmetrical double-output-shaft star wheel speed reducer and permanent magnetism direct drive device thereof, including left base 1, right side base 10, with reel 15 and star wheel speed reducer body 3, a serial communication port, star wheel speed reducer body 3 passes through flange 19 to be connected in the inside one side of reel 15, one side welding of left side base 1 is in one side of reel 15, the opposite side welding of reel 15 is in one side of right side base 10, there is stopper 2 at the top of left side base 1 through bolted connection, the moment that the inside magnetic field of motor 7 can keep the moment that corresponds with the load instantaneously, the motor magnetic field is equivalent to the holding effect at this moment, braking at this moment is equivalent to having reduced the friction of brake pulley and stopper 2, delay the life of stopper 2, the opposite side of the inside of reel 15 passes through bolted connection with motor 7, star wheel speed reducer 3 is as a special type planetary reducer, high transmission efficiency, the bearing capacity is high, compact structure, the transmission is steady, the noise is low, the speed ratio range is big and the transmission ratio is dense wide, install left side base 1 and right base 10 on the dolly through the bolt set, fix wire rope hoist assembly 4 on the wire rope hoist assembly through wire rope hoist cable clamp plate of wire rope hoist assembly 8, hoist assembly 4, wire rope hoist assembly 4 is put around the hoist assembly, wire rope hoist assembly 4 is put through the hoist assembly, and hook, the hoist assembly is driven wire rope hoist assembly is reduced down.
Further, reel assemblies 4 are arranged on two sides of the star wheel speed reducer body 3, a coupling 5 is arranged on one side of the star wheel speed reducer body 3, the coupling 5 is preferably a plum blossom coupling, an elastic pin coupling, a drum-shaped tooth coupling or other coupling with larger adjustable deflection angle, and the coupling is used for adjusting the machining precision and assembly errors of the whole hoisting mechanism, so that the motor 7 and the star wheel speed reducer 3 are not concentric, and the coupling is not limited to a rigid coupling.
Further, one side of the motor 7 is connected to one side of the star wheel speed reducer body 3 through the coupling 5, the other side of the motor 7 is connected to one side of the right base 10 through a bolt, a support ring 6 is arranged between the coupling 5 and the motor 7, a bearing 9 is arranged on one side of the right base 10, and a height limiter 11 is connected to one side of the right base 10 through a bolt.
Further, a guide rod assembly 12 is arranged on the other side of the winding drum 15, a rope guide 13 is connected to one side of the guide rod assembly 12 through a bolt, a rope pressing device 8 is arranged on one side of the winding drum 15, a positioning rod assembly 14 is arranged on one side of the winding drum 15, the left base 1 and the right base 10 are mounted on a trolley through a bolt set, and a steel wire rope end is fixed on the winding drum assembly 4 through a steel wire rope pressing plate of the rope pressing device 8.
Working principle: when in use, the left base 1 and the right base 10 are arranged on the trolley through the bolt groups, the wire rope end is fixed on the winding drum assembly 4 through the wire rope pressing plate of the rope pressing device 8, after the wire rope bypasses the fixed pulley block and the lifting hook movable pulley block assembly of the trolley, the power supply is connected, the motor 7 drives the winding drum assembly 4 to retract and release the wire rope after reducing and increasing torque through the star wheel speed reducer 3, the lifting hook group is driven to lift, both ends of the star wheel speed reducer body 3 can be used as input ends, the output end of the star wheel speed reducer body 3 is arranged at the edge, the motor 7 is built in and maintained as a permanent magnet synchronous motor which is not convenient as the traditional external bare motor, thus the maintenance of the motor is greatly reduced, the motor 7 has the characteristics of matching with the load compared with the asynchronous machine, the efficiency is greatly saved, the internal magnetic field of the motor 7 can keep moment corresponding to load instantaneously at the moment of braking, the motor magnetic field is equivalent to the holding effect at the moment of braking, the friction between a brake wheel and the brake 2 is reduced at the moment of braking, the service life of the brake 2 is delayed, the same motor characteristics are utilized, the secondary starting without slipping hook in the air with load can be realized, the noise of the motor 7 is low, the star wheel speed reducer 3 is used as a special type planetary speed reducer, the transmission efficiency is high, the bearing capacity is high, the structure is compact, the transmission is stable, the noise is low, the speed ratio range is large, the transmission ratio is compact and wide, the transmission ratio is 18-80 (2-3 stages are needed corresponding to the traditional parallel shaft speed reducer) during one-stage speed reduction, the requirement of the lifting speed of a crane is completely met, the two-stage serial transmission ratio is 100-5000, the one-stage speed ratio is preferentially adopted because the requirement of the speed ratio of the crane is met, the size and weight of the speed reducer can be reduced, the star wheel speed reducer 3 is used as a transmission mode of coaxial input with the motor 7 and circumferential output of an outer gear, the star wheel speed reducer 3 and the motor 7 can be built in a winding drum 15 together, the whole appearance of the motor 7, the star wheel speed reducer 3 and the winding drum 15 is integrated, the size and weight of a lifting mechanism are greatly reduced, the motor 7 and the star wheel speed reducer 3 are built in the winding drum 15, the motor 7 and the star wheel speed reducer 3 are connected through a coupling 5, the coupling 5 preferably adopts a plum blossom coupling, an elastic pin coupling, a drum-shaped tooth coupling or other coupling with larger adjustable deflection angles, and the coupling is used for adjusting the machining precision and assembly errors of the whole lifting mechanism, so that the motor 7 and the star wheel speed reducer 3 are not concentric and are not limited to rigid couplings.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.