CN112320540A - Modular elevator traction machine - Google Patents

Abstract

A modular elevator traction machine is characterized in that an outer rotor brushless motor is arranged in the center of a machine body and is a slender 4-pole permanent magnet direct current motor, a cycloidal pin wheel speed reducer is arranged on the periphery of the outer rotor brushless motor, a traction wheel is arranged on the excircle of the cycloidal pin wheel speed reducer, a shell is arranged at the rear end of the cycloidal pin wheel speed reducer, and an electromagnetic brake, a photoelectric encoder, a brushless motor control module and a signal acquisition control module are arranged in the shell; after the elevator system has a power failure, the front brake shoe and the rear brake shoe clamp the brake disc depending on the pressure of the front spring and the rear spring, the elevator brake is safe and reliable, the axial size of the modular elevator traction machine is equal to that of the outer rotor brushless motor, and the modular elevator traction machine realize electromechanical integration in a parallel combination structural form so as to achieve the purposes of reducing the volume, reducing the cost and improving the safety and the universality.

Description

Modular elevator traction machine

Technical Field

The invention relates to the technical field of elevator traction machines, in particular to a module type elevator traction machine.

Background

The elevator traction machine is an important component of the development of modern elevator technology, and the safety, the universality and the structural cost of the elevator traction machine greatly influence the performance and the application field of the elevator traction machine.

The existing elevator traction machine is generally composed of a traction sheave, a reducer, a motor, a brake and a photoelectric encoder, wherein the elevator traction machine with the combination of a cycloid reducer and a permanent magnet motor represents the advanced level of the existing elevator traction machine technology. For example, patent publications and patent publications with the name of "permanent magnet constant brake elevator cycloid traction machine" and the application number of "2011103830299" disclose an invention patent application with the name of "cycloid permanent magnet synchronous elevator traction machine" and the application number of "2007101014660". They have common drawbacks in that: the permanent-magnet electric motor is formed by simply connecting a traction wheel, a cycloidal pin wheel speed reducer, a permanent-magnet motor and a brake in series, the whole machine is large in size, the permanent-magnet motor is of an inner rotor structure, and the brake part of the permanent-magnet motor is complex in structure, so that the cost of the permanent-magnet electric motor is high.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: the modular elevator tractor thoroughly changes the simple series combination form of the cycloidal pin wheel speed reducer, the permanent magnet motor, the brake and the photoelectric encoder, realizes the electromechanical integrated modular elevator tractor in the parallel combination structural form, and achieves the purposes of reducing the volume, reducing the cost and improving the safety and the universality.

The modular elevator traction machine comprises a traction wheel, a cycloidal pin wheel speed reducer, a shell, a central shaft, an outer rotor brushless permanent magnet motor, an electromagnetic brake, a photoelectric encoder, a brushless motor control module, a signal acquisition control module, a front tripod and a rear tripod, and is characterized in that: an outer rotor brushless motor is arranged in the center of a machine body of the modular elevator traction machine, the outer rotor brushless motor is a slender 4-pole permanent magnet direct current motor, the axial size of the modular elevator traction machine is equal to that of the outer rotor brushless motor, a cycloidal pin wheel speed reducer is arranged on the periphery of the outer rotor brushless motor, a traction wheel is arranged on the excircle of the cycloidal pin wheel speed reducer, a shell is arranged at the rear end of the cycloidal pin wheel speed reducer, and an electromagnetic brake, a photoelectric encoder, a brushless motor control module and a signal acquisition control module are arranged in the shell; the outer rotor brushless motor is provided with a central shaft, the middle of the central shaft is thick, the two ends of the central shaft are thin, a stator core is arranged on the outer circle of the thick shaft in the middle of the central shaft, a plurality of iron core teeth are arranged on the circumference of the stator core, a plurality of coil grooves are formed among the iron core teeth, a plurality of coils are wound in the coil grooves, the coils are averagely divided into 3 coil groups, the electric angle among the 3 coil groups is 120 degrees, the 3 coil groups are connected into a Y-shaped circuit to form 3-phase coils, and 3 Hall sensors are respectively arranged in the coil grooves among the 3-phase coils; the front end of the central shaft is provided with a front bearing, the excircle of the front bearing is provided with a front end cover, the excircle of the front end cover is provided with a magnetic conduction cylinder, the front end cover and the magnetic conduction cylinder are integrally manufactured and molded, the inner circle of the magnetic conduction cylinder is provided with a permanent magnet ring, the permanent magnet ring consists of 4 arc permanent magnets, the arc permanent magnets are strong magnets made of rare earth materials, the magnetic pole directions are radial, the polarities of the adjacent arc permanent magnets are opposite to each other, uniform air gaps are arranged between the excircle of the stator core and the inner circle of the permanent magnet ring, and the front end and the rear end of the stator core are consistent with the; the rear end of the central shaft is provided with a rear bearing, the excircle of the rear bearing is provided with a rear end cover, the excircle of the rear end cover is provided with a helicoid, the excircle of the helicoid is provided with external threads, the inner circle of the rear end of the magnetic cylinder is provided with internal threads, and the helicoid of the rear end cover is screwed into the internal threads of the inner circle of the rear end of the magnetic cylinder and is fixed after being screwed; the rear end of the central shaft is provided with a central hole, the front end of the central hole is provided with an inclined hole, the output lines of the 3-phase coils and the output lines of the 3 Hall sensors are combined into a motor line, and the motor line penetrates out of the machine from the inclined hole and the central hole; the shell is provided with a front coupling end cover, the front end of the front coupling end cover is provided with a front tripod, the lower end of the front tripod is provided with a front base, the front coupling end cover is provided with a central hole, the inner circle of the central hole is provided with front central hole internal teeth, the upper end of the front tripod is provided with a coupling hole, the inner circle of the coupling hole is provided with front coupling hole internal teeth, the outer circle of a thin shaft at the front end of the central shaft is provided with coupling front teeth, the front central hole internal teeth and the front coupling hole internal teeth are both meshed with the coupling front teeth, the thin shaft at the front end of the central shaft is provided with a front screw cap, and the front coupling end cover and the front tripod are; the rear end of the rear shaft is provided with a rear coupling tooth, the shell is provided with a rear coupling end cover, the rear end of the rear coupling end cover is provided with a rear triangular frame, the lower end of the rear triangular frame is provided with a rear base, the rear coupling end cover is provided with a central hole, the inner circle of the central hole is provided with a rear central hole inner tooth, the upper end of the rear triangular frame is provided with a coupling hole, the inner circle of the coupling hole is provided with a rear coupling hole inner tooth, the rear central hole inner tooth and the rear coupling hole inner tooth are both meshed with the coupling rear tooth, the rear end of the central shaft is provided with a rear screw cap, and the rear coupling end cover and the rear triangular frame are fastened at the rear end of the; the front end of the excircle of the rear coupling end cover is provided with a shell barrel, the shell barrel and the rear coupling end cover are integrally manufactured and molded, the periphery of the front end of the shell barrel is provided with a plurality of nut holes, a plurality of screw rods are arranged in the plurality of nut holes, the periphery of the front coupling end cover is provided with a plurality of screw holes, the plurality of screw holes correspond to the plurality of nut holes, connecting sleeves are arranged between the plurality of screw holes and the plurality of nut holes, the plurality of screw rods are used for tightly connecting the front coupling end cover and the shell barrel through the plurality of connecting sleeves, two ends of a central shaft are fixed at the centers of the front coupling end cover and the rear coupling end cover of the shell, and the outer rotor brushless motor; the shell consisting of a shell barrel, a front coupling end cover and a rear coupling end cover is meshed and connected with the front tripod and the rear tripod through teeth at two ends of the central shaft, so that the central shaft and the shell are stably positioned between the front tripod and the rear tripod, and the front base and the rear base are fixed at the upper end of the ground of an elevator machine room; the cycloidal pin wheel speed reducer is provided with a front eccentric sleeve and a rear eccentric sleeve, the front eccentric sleeve and the rear eccentric sleeve are arranged on the excircle at the front end of the magnetic conduction cylinder, the front eccentric sleeve and the rear eccentric sleeve are integrally manufactured and molded with the magnetic conduction cylinder, the eccentric directions of the front eccentric sleeve and the rear eccentric sleeve are opposite, the excircle of the front eccentric sleeve is provided with a front cycloidal bearing, the excircle of the front cycloidal bearing is provided with a front cycloidal wheel, the excircle of the rear eccentric sleeve is provided with a rear cycloidal wheel, the excircles of the front cycloidal wheel and the rear cycloidal wheel are both provided with a plurality of cycloidal teeth, a plurality of equant stop holes are arranged on the annular surface between the excircle of the cycloidal bearing and the excircle of the cycloidal wheel, the front cycloidal wheel is provided with a plurality of equant front stop holes, the rear cycloidal wheel is provided with a plurality of equant rear stop holes, the specifications and the sizes of the front cycloidal wheel and the rear cycloidal wheel are the plurality of the front stop holes are both corresponding to the plurality of connecting sleeves, the plurality of connecting sleeves penetrate through the plurality of front stop holes and the plurality of rear stop holes, when the outer rotor brushless motor rotates, the front cycloid wheel swings along with the front eccentric sleeve, the rear cycloid wheel swings along with the rear eccentric sleeve, the plurality of front stop holes and the plurality of rear stop holes are in the stop range of the plurality of connecting sleeves, and the front stop holes and the rear stop holes symmetrically swing in a crossed manner; the outer circle of the front coupling end cover is provided with a front ultrathin bearing, the outer circle of the front end of the shell barrel is provided with a rear ultrathin bearing, the outer circles of the front and rear ultrathin bearings are provided with a needle wheel ring, the inner circles of the front and rear ends of the needle wheel ring are provided with a front bearing frame and a rear bearing frame, the front and rear bearing frames are respectively matched and installed with the outer circles of the front and rear ultrathin bearings, when the needle wheel ring rotates forwards and backwards, front and rear positioning is stable, the circumference of the middle part of the inner circle of the needle wheel ring is provided with a plurality of needle gear rod grooves, needle gear rods are arranged in the plurality of needle gear rod grooves, so that the needle wheel ring is formed, the number of the plurality of needle gear rods is one more than that of cycloid teeth, when the plurality of cycloid teeth of the current cycloid wheel and rear cycloid wheels are meshed with the needle gear rods at the upper end and the lower end of the needle wheel, the plurality of cycloid teeth of the front cycloid wheel and rear cycloid wheel are separated from the needle gear rods at the left end and the right end of the needle, The number of pin gear rods is large, so that the reduction ratio of the cycloidal pin gear speed reducer is large; the outer circle of the pin wheel ring is provided with a traction wheel, the outer circle of the traction wheel is provided with a plurality of steel wire rope grooves, a plurality of steel wire ropes are arranged in the steel wire rope grooves, clamping friction force exists between the steel wire rope grooves and the steel wire ropes, one ends of the steel wire ropes are connected with an elevator cabin, the other ends of the steel wire ropes are connected with a counterweight through pulleys, and power of the modular elevator traction machine pulls the elevator cabin and the counterweight to move up and down through the traction wheel; the modular elevator traction machine is provided with a photoelectric encoder, the photoelectric encoder consists of a photoelectric encoder read head and a photoelectric encoding disc, the upper end of the shell barrel is provided with an upper hole, the 4 sides of the upper hole are provided with an upper step, an upper arc-shaped cover plate is arranged in the upper hole, the upper end of the upper arc-shaped cover plate is provided with an upper handle, the rear lower end of the upper arc-shaped cover plate is provided with the photoelectric encoder read head, the photoelectric encoder read head is provided with a transmitting head and a receiving head, the photoelectric encoding disc is arranged between the transmitting head and the receiving head, and the photoelectric encoding disc is arranged at the; the upper front end in the shell barrel is provided with a signal acquisition control module, the input end and the output end of the signal acquisition control module are connected with the output line of the photoelectric encoder read head and the output line of the electromagnetic brake, the upper end of the rear coupling end cover is provided with an upper line hole, the electromagnetic brake, the photoelectric encoder read head and the output line of the signal acquisition control module are combined into a control cable to be led out from the upper line hole, the control cable is connected with a main controller of an elevator, and the photoelectric encoder provides position information of the elevator for the main controller; the modular elevator traction machine is provided with an electromagnetic brake, the electromagnetic brake consists of a front brake, a rear brake and a brake disc, the lower end of a shell cylinder is provided with a lower hole, the 4 sides of the lower hole are provided with a lower step, a lower arc-shaped cover plate is arranged in the lower hole, the lower end of the lower arc-shaped cover plate is provided with a lower handle, the lower end of the lower arc-shaped cover plate is provided with the front brake and the rear brake, the front brake is provided with a front support, the upper end of the front support is provided with a front cylindrical iron core, the excircle of the front cylindrical iron core is provided with a front electromagnetic coil, the excircle of the front electromagnetic coil is provided with a front magnetic cylinder, the front end and the rear end of the front magnetic cylinder are both provided with front annular end covers, the; the electromagnetic brake is provided with a rear support, a rear cylindrical iron core is arranged at the upper end of the rear support, a rear electromagnetic coil is arranged on the excircle of the rear cylindrical iron core, a rear magnetic conduction cylinder is arranged on the excircle of the rear electromagnetic coil, rear annular end covers are arranged at the front end and the rear end of the rear magnetic conduction cylinder, a rear brake shoe is arranged at the front end of each rear annular end cover, and a rear spring is arranged among the excircle of the rear cylindrical iron core, the rear annular end covers and the rear support; when the outer rotor brushless motor and the front and rear electromagnetic coils are in a power-on state, magnetic force generated by the front and rear electromagnetic coils enables the front and rear brake shoes to release the brake disc, so that the outer rotor brushless motor rotates as usual; the lower extreme is equipped with brushless motor control module before the casing section of thick bamboo, and back shaft coupling end cover lower extreme is equipped with down the line hole, and brushless motor control module's output line is drawn from the down line hole, and brushless motor control module's output line connection external rotor brushless motor's motor line, go up the arc apron and be equipped with a plurality of countersunk screw, arc apron is equipped with a plurality of countersunk screw down, and upper and lower countersunk screw fastens upper arc apron and lower arc apron respectively on the upper and lower step on 4 limits in upper and lower hole.

The module type elevator traction machine has the beneficial effects that: the module type elevator traction machine integrates the cycloidal pin wheel speed reducer, the electromagnetic brake, the photoelectric encoder, the signal acquisition control module and the brushless motor control module with the outer rotor brushless motor in a parallel structure form, has simple structure and low cost, has high module type structure integration level and small volume, and greatly improves the load dead weight ratio and the universality of equipment; the slender outer rotor brushless motor has short reactive coil end, long active coil, high power density and high efficiency; the diameter of the needle wheel rim is large, so that the reduction ratio of the cycloidal needle wheel speed reducer is increased, the rotating speed of the outer rotor brushless motor is improved, and the efficiency is improved; the electromagnetic brake and the outer rotor brushless motor work synchronously, after the elevator system is powered off, the elevator system is braked by the pressure of the front spring and the pressure of the rear spring, so that the elevator brake is safe and reliable, the installation, debugging and maintenance of the modular elevator traction machine are simpler and more convenient due to the upper arc-shaped cover plate and the lower arc-shaped cover plate, and the modular elevator traction machine is good in safety, strong in universality and low in structural cost.

Drawings

Fig. 1 is a schematic structural diagram of an opened state front section of an electromagnetic brake of a modular elevator traction machine.

Fig. 2 is a schematic structural diagram of an electromagnetic brake braking state front view section of a modular elevator traction machine.

Fig. 3 is a schematic front sectional view of the electromagnetic brake.

Detailed Description

In fig. 1, 2 and 3, an outer rotor brushless motor is arranged in the center of the machine body of the modular elevator traction machine, the outer rotor brushless motor is a long and thin 4-pole permanent magnet direct current motor, the axial dimension of the modular elevator traction machine is equal to the axial dimension of the outer rotor brushless motor, a cycloidal pin gear reducer is arranged on the periphery of the outer rotor brushless motor, a traction wheel is arranged on the excircle of the cycloidal pin gear reducer, a shell is arranged at the rear end of the cycloidal pin gear reducer, and an electromagnetic brake, a photoelectric encoder, a brushless motor control module and a signal acquisition control module are arranged in the shell; the outer rotor brushless motor is provided with a central shaft 1, the middle of the central shaft is thick, the two ends of the central shaft are thin, a stator core 2 is arranged on the outer circle of the thick shaft in the middle of the central shaft, a plurality of iron core teeth are arranged on the circumference of the stator core, a plurality of coil grooves are formed among the iron core teeth, a plurality of coils are wound in the coil grooves, the coils are averagely divided into 3 coil groups, the electric angle among the 3 coil groups is 120 degrees, the 3 coil groups are connected into a Y-shaped circuit, 3 Hall sensors 4 are formed in the coil grooves among the 3- phase coils 3, and 3 Hall sensors 4 are respectively arranged in the coil grooves among the 3-phase; the front end of the central shaft is provided with a front bearing 5, the excircle of the front bearing is provided with a front end cover 6, the excircle of the front end cover is provided with a magnetic conduction cylinder 7, the front end cover and the magnetic conduction cylinder are integrally manufactured and molded, the inner circle of the magnetic conduction cylinder is provided with a permanent magnet ring 8, the permanent magnet ring consists of 4 arc permanent magnets, the arc permanent magnets are strong magnets made of rare earth materials, the magnetic pole directions are radial, the polarities of the adjacent arc permanent magnets are opposite, uniform air gaps are arranged between the excircle of the stator core and the inner circle of the permanent magnet ring, and the front end and the rear end of the stator core are consistent with the front end and; the rear end of the central shaft is provided with a rear bearing 9, the excircle of the rear bearing is provided with a rear end cover 10, the excircle of the rear end cover is provided with a helicoid 11, the excircle of the helicoid is provided with an external thread, the inner circle of the rear end of the magnetic conduction cylinder is provided with an internal thread, the helicoid of the rear end cover is screwed into the internal thread of the inner circle of the rear end of the magnetic conduction cylinder, and the rear end; the rear end of the central shaft is provided with a central hole 12, the front end of the central hole is provided with an inclined hole 13, the output lines of the 3-phase coil and the output lines of the 3 Hall sensors are combined into a motor line 14, and the motor line penetrates out of the machine from the inclined hole and the central hole; the shell is provided with a front coupling end cover 15, the front end of the front coupling end cover is provided with a front tripod 16, the lower end of the front tripod is provided with a front base 17, the front coupling end cover is provided with a central hole, the inner circle of the central hole is provided with a front central hole internal tooth 18, the upper end of the front tripod is provided with a coupling hole, the inner circle of the coupling hole is provided with a front coupling hole internal tooth 19, the thin shaft excircle of the front end of the central shaft is provided with a coupling front tooth, the front central hole internal tooth and the front coupling hole internal tooth are both meshed with the coupling front tooth, the thin shaft of the front end of the central shaft is provided with a front screw cap 20, and the front coupling end cover and the front tripod; the shell is provided with a rear coupling end cover 21, the rear end of the rear coupling end cover is provided with a rear tripod 22, the lower end of the rear tripod is provided with a rear base 23, the rear coupling end cover is provided with a central hole, an inner circle of the central hole is provided with rear central hole inner teeth 24, the upper end of the rear tripod is provided with a coupling hole, an inner circle of the coupling hole is provided with rear coupling hole inner teeth 25, a thin shaft excircle of the rear end of the central shaft is provided with coupling rear teeth, the rear central hole inner teeth and the rear coupling shaft hole inner teeth are both meshed with the coupling rear teeth, the thin shaft of the rear end of the central shaft is provided with a rear screw cap 26, and the rear coupling end cover and the rear tripod are fastened at the rear end; the front end of the excircle of the rear coupling end cover is provided with a shell barrel 27, the shell barrel and the rear coupling end cover are integrally manufactured and molded, the periphery of the front end of the shell barrel is provided with a plurality of nut holes, a plurality of screw rods 28 are arranged in the plurality of nut holes, the periphery of the front coupling end cover is provided with a plurality of screw holes, the plurality of screw holes correspond to the plurality of nut holes, connecting sleeves 29 are arranged between the plurality of screw holes and the plurality of nut holes, the plurality of screw rods are used for fixedly connecting the front coupling end cover and the shell barrel through the plurality of connecting sleeves, two ends of a central shaft are fixed at the centers of the front and rear coupling end covers of the shell, and the outer rotor brushless motor is positioned at the; the shell consisting of a shell barrel, a front coupling end cover and a rear coupling end cover is meshed and connected with the front tripod and the rear tripod through teeth at two ends of the central shaft, so that the central shaft and the shell are stably positioned between the front tripod and the rear tripod, and the front base and the rear base are fixed at the upper end of the ground of an elevator machine room; the cycloidal pin wheel speed reducer is provided with a front eccentric sleeve 30 and a rear eccentric sleeve 31, the front eccentric sleeve and the rear eccentric sleeve are arranged on the excircle at the front end of a magnetic conduction cylinder, the front eccentric sleeve and the rear eccentric sleeve are integrally manufactured and molded with the magnetic conduction cylinder, the eccentric directions of the front eccentric sleeve and the rear eccentric sleeve are opposite, the excircle of the front eccentric sleeve is provided with a front cycloidal bearing 32, the excircle of the front cycloidal bearing is provided with a front cycloidal wheel 33, the excircle of the rear eccentric sleeve is provided with a rear cycloidal bearing 34, the excircle of the rear cycloidal bearing is provided with a rear cycloidal wheel 35, the excircles of the front cycloidal wheel and the rear cycloidal wheel are both provided with a plurality of cycloidal teeth 36, a plurality of equant stop holes are arranged on the excircle annular surface between the cycloidal bearing and the cycloidal wheel, the front cycloidal wheel is provided with a plurality of equant front stop holes 37, the rear cycloidal wheel is provided with a plurality of equant rear stop holes 38, the specifications and the sizes of the front cycloidal wheel and the rear cycloidal wheel are the same, the, the plurality of connecting sleeves penetrate through the plurality of front stop holes and the plurality of rear stop holes, when the outer rotor brushless motor rotates, the front cycloid wheel swings along with the front eccentric sleeve, the rear cycloid wheel swings along with the rear eccentric sleeve, the plurality of connecting sleeves are sleeved in the stop ranges of the plurality of front stop holes and the rear stop holes, and the front stop holes and the rear stop holes symmetrically swing in a crossed manner; the outer circle of the front coupling end cover is provided with a front ultrathin bearing 39, the outer circle of the front end of the shell barrel is provided with a rear ultrathin bearing 40, the outer circles of the front ultrathin bearing and the rear ultrathin bearing are provided with a needle wheel rim 41, the inner circles of the front end and the rear end of the needle wheel rim are provided with a front bearing frame and a rear bearing frame, the front bearing frame and the rear bearing frame are respectively matched and installed with the outer circles of the front ultrathin bearing and the rear ultrathin bearing, when the needle wheel rim rotates forwards and backwards, the front positioning and the rear positioning are stable, the circumference of the middle part of the inner circle of the needle wheel rim is provided with a plurality of needle gear rod grooves, needle gear rods 42 are respectively arranged in the plurality of needle gear rod grooves, the needle wheel rim is formed by a plurality of needle gear rods, the number of the plurality of needle gear rods is one more than that of cycloid teeth, when the plurality of cycloid teeth of the current cycloid wheel and rear cycloid wheel are meshed with the needle gear rods at the upper end and the lower end of the needle wheel rim, the plurality of cycloid wheel teeth of the front, the diameter of the pin wheel ring is large, and the number of pin gear rods is large, so that the reduction ratio of the cycloidal pin wheel speed reducer is large; a traction wheel 43 is arranged on the excircle of the pin wheel ring, a plurality of steel wire rope grooves 44 are arranged on the excircle of the traction wheel, a plurality of steel wire ropes are arranged in the steel wire rope grooves, clamping friction force exists between the steel wire rope grooves and the steel wire ropes, one ends of the steel wire ropes are connected with an elevator cabin, the other ends of the steel wire ropes are connected with a counterweight through pulleys, and power of the modular elevator traction machine pulls the elevator cabin and the counterweight to move up and down through the traction wheel; the modular elevator traction machine is provided with a photoelectric encoder, the photoelectric encoder consists of a photoelectric encoder read head and a photoelectric encoding disc, the upper end of the shell barrel is provided with an upper hole, the 4 sides of the upper hole are provided with an upper step 45, an upper arc-shaped cover plate 46 is arranged in the upper hole, the upper end of the upper arc-shaped cover plate is provided with an upper handle 47, the rear lower end of the upper arc-shaped cover plate is provided with a photoelectric encoder read head, the photoelectric encoder read head is provided with a transmitting head 48 and a receiving head 49, the photoelectric encoding disc 50 is arranged between the transmitting head and the receiving head, and the photoelectric encoding disc is arranged at; a signal acquisition control module 51 is arranged at the upper front end in the shell barrel, the input end and the output end of the signal acquisition control module are connected with the output line of the photoelectric encoder read head and the output line of the electromagnetic brake, an upper line hole 52 is arranged at the upper end of the rear coupling end cover, the output lines of the electromagnetic brake, the photoelectric encoder read head and the signal acquisition control module are combined into a control cable 53 and led out from the upper line hole, the control cable is connected with a main controller of an elevator, and the photoelectric encoder provides position information of the elevator for the main controller; the modular elevator tractor is provided with an electromagnetic brake, the electromagnetic brake consists of a front brake, a rear brake and a brake disc, the lower end of a shell cylinder is provided with a lower hole, the 4 sides of the lower hole are provided with a lower step 54, a lower arc-shaped cover plate 55 is arranged in the lower hole, the lower end of the lower arc-shaped cover plate is provided with a lower handle 56, the lower end of the lower arc-shaped cover plate is provided with the front brake and the rear brake, the front brake is provided with a front bracket 57, the upper end of the front bracket is provided with a front cylindrical iron core 58, the excircle of the front cylindrical iron core is provided with a front electromagnetic coil 59, the excircle of the front electromagnetic coil is provided with a front magnetic cylinder 60, the front and rear ends of the front magnetic cylinder are both provided with front annular end covers 61, the rear ends of the front; the rear electromagnetic brake is provided with a rear bracket 64, a rear cylindrical iron core 65 is arranged at the upper end of the rear bracket, a rear electromagnetic coil 66 is arranged on the excircle of the rear cylindrical iron core, a rear magnetic conduction cylinder 67 is arranged on the excircle of the rear electromagnetic coil, rear annular end covers 68 are arranged at the front end and the rear end of the rear magnetic conduction cylinder, a rear brake shoe 69 is arranged at the front end of each rear annular end cover, and a rear spring 70 is arranged between the excircle of the rear cylindrical iron core, the rear annular end covers and the rear bracket; a brake disc 71 is arranged between the front brake shoe and the rear brake shoe, the brake disc is arranged on the excircle of the magnetic conduction cylinder and is positioned at the front end of the photoelectric coding disc, when the outer rotor brushless motor and the front and rear electromagnetic coils are in a power failure state, the front and rear brake shoes are tightly clamped by the brake disc under the pressure of the front and rear springs, so that the outer rotor brushless motor is in a braking state in the power failure state, and when the outer rotor brushless motor and the front and rear electromagnetic coils are in a power-on state, the front and rear brake shoes are loosened by magnetic force generated by the front and rear electromagnetic coils, so that the outer rotor brushless motor rotates normally; the lower extreme is equipped with brushless motor control module 72 before the casing section of thick bamboo, and back coupling end cover lower extreme is equipped with down line hole 73, and brushless motor control module's output line 74 is drawn from the down line hole, and brushless motor control module's output line connection external rotor brushless motor's motor line, go up the arc apron and be equipped with a plurality of countersunk screw 75, arc apron is equipped with a plurality of countersunk screw 76 down, goes up, and the countersunk screw will go up arc apron and arc apron down and fasten respectively on the upper and lower step on upper and lower hole 4 limits.

The module type elevator traction machine integrates the cycloidal pin wheel speed reducer, the electromagnetic brake, the photoelectric encoder, the signal acquisition control module and the brushless motor control module with the outer rotor brushless motor in a parallel structure form, has simple structure and low cost, has high module type structure integration level and small volume, and greatly improves the load dead weight ratio and the universality of equipment; the slender outer rotor brushless motor has short reactive coil end, long active coil, high power density and high efficiency; the diameter of the needle wheel rim is large, so that the reduction ratio of the cycloidal needle wheel speed reducer is increased, the rotating speed of the outer rotor brushless motor is improved, and the efficiency is improved; the electromagnetic brake and the outer rotor brushless motor work synchronously, the elevator is braked after an elevator system is powered off, so that the elevator brake is safe and reliable, the installation, debugging and maintenance of the module type elevator traction machine are simpler and more convenient due to the upper arc-shaped cover plate and the lower arc-shaped cover plate, and the electromechanical integrated module type elevator traction machine has the advantages of good safety, strong universality and low structural cost.

Claims (1)

1. The utility model provides a modular elevator hauler, includes traction sheave, cycloid pin wheel reduction gear, casing, center pin, outer rotor brushless permanent-magnet machine, electromagnetic braking ware, photoelectric encoder, brushless motor control module, signal acquisition control module, preceding tripod and back tripod, its characterized in that: an outer rotor brushless motor is arranged in the center of a machine body of the modular elevator traction machine, the outer rotor brushless motor is a slender 4-pole permanent magnet direct current motor, the axial size of the modular elevator traction machine is equal to that of the outer rotor brushless motor, a cycloidal pin wheel speed reducer is arranged on the periphery of the outer rotor brushless motor, a traction wheel is arranged on the excircle of the cycloidal pin wheel speed reducer, a shell is arranged at the rear end of the cycloidal pin wheel speed reducer, and an electromagnetic brake, a photoelectric encoder, a brushless motor control module and a signal acquisition control module are arranged in the shell; the outer rotor brushless motor is provided with a central shaft (1), the middle of the central shaft is thick, the two ends of the central shaft are thin, a stator core (2) is arranged on the outer circle of the thick shaft in the middle of the central shaft, a plurality of iron core teeth are arranged on the circumference of the stator core, a plurality of coil grooves are formed among the iron core teeth, a plurality of coils are wound in the coil grooves, the coils are averagely divided into 3 coil groups, the electric angle among the 3 coil groups is 120 degrees, the 3 coil groups are connected into a Y-shaped circuit to form 3-phase coils (3), and 3 Hall sensors (4) are respectively arranged in the coil grooves among the 3-phase coils; the front end of the central shaft is provided with a front bearing (5), the excircle of the front bearing is provided with a front end cover (6), the excircle of the front end cover is provided with a magnetic conduction cylinder (7), the front end cover and the magnetic conduction cylinder are integrally manufactured and molded, the inner circle of the magnetic conduction cylinder is provided with a permanent magnetic ring (8), the permanent magnetic ring consists of 4 arc permanent magnets, the arc permanent magnets are strong magnets made of rare earth materials, the magnetic pole directions are radial, the polarities of the adjacent arc permanent magnets are opposite, uniform air gaps are arranged between the excircle of the stator core and the inner circle of the permanent magnetic ring, and the front end and the rear end of the stator core are consistent with the front end and; the rear end of the central shaft is provided with a rear bearing (9), the excircle of the rear bearing is provided with a rear end cover (10), the excircle of the rear end cover is provided with a helicoid (11), the excircle of the helicoid is provided with external threads, the inner circle of the rear end of the magnetic conduction cylinder is provided with internal threads, the helicoid of the rear end cover is screwed into the internal threads of the inner circle of the rear end of the magnetic conduction cylinder, and the rear end cover is; the rear end of the central shaft is provided with a central hole (12), the front end of the central hole is provided with an inclined hole (13), the output lines of the 3-phase coil and the output lines of the 3 Hall sensors are combined into a motor line (14), and the motor line penetrates out of the machine from the inclined hole and the central hole; the shell is provided with a front coupling end cover (15), the front end of the front coupling end cover is provided with a front tripod (16), the lower end of the front tripod is provided with a front base (17), the front coupling end cover is provided with a central hole, the inner circle of the central hole is provided with front central hole internal teeth (18), the upper end of the front tripod is provided with a coupling hole, the inner circle of the coupling hole is provided with front coupling hole internal teeth (19), the thin shaft excircle of the front end of the central shaft is provided with coupling front teeth, the front central hole internal teeth and the front coupling hole internal teeth are both meshed with the coupling front teeth, the thin shaft of the front end of the central shaft is provided with a front screw cap (20), and the front screw cap fastens the front coupling end cover and the; the shell is provided with a rear coupling end cover (21), the rear end of the rear coupling end cover is provided with a rear tripod (22), the lower end of the rear tripod is provided with a rear base (23), the rear coupling end cover is provided with a central hole, an inner circle of the central hole is provided with rear central hole inner teeth (24), the upper end of the rear tripod is provided with a coupling hole, the inner circle of the coupling hole is provided with rear coupling hole inner teeth (25), a thin shaft excircle of the rear end of the central shaft is provided with coupling rear teeth, the rear central hole inner teeth and the rear coupling hole inner teeth are both meshed with the coupling rear teeth, a rear screw cap (26) is arranged on the thin shaft of the rear end of the central shaft, and the rear coupling end cover and the rear tripod are fastened at the rear; the front end of the excircle of the rear coupling end cover is provided with a shell barrel (27), the shell barrel and the rear coupling end cover are integrally manufactured and molded, the periphery of the front end of the shell barrel is provided with a plurality of nut holes, a plurality of screw rods (28) are arranged in the plurality of nut holes, the periphery of the front coupling end cover is provided with a plurality of screw holes, the plurality of screw holes correspond to the plurality of nut holes, connecting sleeves (29) are arranged between the plurality of screw holes and the plurality of nut holes, the plurality of screw rods are used for fastening and connecting the front coupling end cover and the shell barrel through the plurality of connecting sleeves, two ends of a central shaft are fixed at the centers of the front and rear coupling end covers of the shell, and the outer rotor brushless motor is; the shell consisting of a shell barrel, a front coupling end cover and a rear coupling end cover is meshed and connected with the front tripod and the rear tripod through teeth at two ends of the central shaft, so that the central shaft and the shell are stably positioned between the front tripod and the rear tripod, and the front base and the rear base are fixed at the upper end of the ground of an elevator machine room; the cycloidal pin wheel speed reducer is provided with a front eccentric sleeve (30) and a rear eccentric sleeve (31), the front eccentric sleeve and the rear eccentric sleeve are arranged on the excircle at the front end of the magnetic conductive cylinder, the front eccentric sleeve and the rear eccentric sleeve are integrally manufactured and molded with the magnetic conductive cylinder, the eccentric directions of the front eccentric sleeve and the rear eccentric sleeve are opposite to each other, the excircle of the front eccentric sleeve is provided with a front cycloidal bearing (32), the excircle of the front cycloidal bearing is provided with a front cycloidal wheel (33), the excircle of the rear eccentric sleeve is provided with a rear cycloidal bearing (34), the excircle of the rear cycloidal bearing is provided with a rear cycloidal wheel (35), the excircles of the front cycloidal wheel and the rear cycloidal wheel are respectively provided with a plurality of cycloidal teeth (36), a plurality of equant stop holes are arranged on the annular surface between the excircle of the cycloidal bearing and the excircle of the cycloidal wheel, the front cycloidal wheel is provided with a plurality of equant front stop holes (37), the rear cycloidal wheel is provided with a plurality of equant rear, the diameters of the front stop holes and the rear stop holes are larger than those of the connecting sleeves, the connecting sleeves penetrate through the front stop holes and the rear stop holes, when the outer rotor brushless motor rotates, the front cycloid wheel swings along with the front eccentric sleeve, the rear cycloid wheel swings along with the rear eccentric sleeve, the connecting sleeves are sleeved in the stop ranges of the front stop holes and the rear stop holes, and the front stop holes and the rear stop holes symmetrically swing in a crossed manner; the outer circle of the front coupling end cover is provided with a front ultrathin bearing (39), the outer circle of the front end of the shell barrel is provided with a rear ultrathin bearing (40), the outer circles of the front ultrathin bearing and the rear ultrathin bearing are provided with a needle wheel rim (41), the inner circles of the front end and the rear end of the needle wheel rim are provided with a front bearing frame and a rear bearing frame, the front bearing frame and the rear bearing frame are respectively matched and installed with the outer circles of the front ultrathin bearing and the rear ultrathin bearing, when the needle wheel rim rotates forwards and backwards, the front and rear positioning is stable, the circumference of the middle part of the inner circle of the needle wheel rim is provided with a plurality of needle gear rod grooves, needle gear rods (42) are respectively arranged in the plurality of needle gear rod grooves, the plurality of needle gear rods form the needle wheel rim, the plurality of needle gear rods are more than the number of cycloid teeth, when the plurality of cycloid teeth of the front cycloid wheel and the plurality of cycloid teeth of the rear cycloid wheel are meshed with the needle gear rods at the needle wheel rim and the needle gear, the reduction ratio of the cycloidal pin gear speed reducer is that the number of pin gear rods is more than 1, the diameter of the pin gear ring is large, and the number of the pin gear rods is large, so that the reduction ratio of the cycloidal pin gear speed reducer is very large; a traction wheel (43) is arranged on the excircle of the pin wheel ring, a plurality of steel wire rope grooves (44) are formed in the excircle of the traction wheel, a plurality of steel wire ropes are arranged in the steel wire rope grooves, clamping friction force exists between the steel wire rope grooves and the steel wire ropes, one ends of the steel wire ropes are connected with an elevator cabin, the other ends of the steel wire ropes are connected with a counterweight through pulleys, and power of the modular elevator traction machine pulls the elevator cabin and the counterweight to move up and down through the traction wheel; the modular elevator traction machine is provided with a photoelectric encoder, the photoelectric encoder consists of a photoelectric encoder read head and a photoelectric encoding disc, an upper hole is formed in the upper end of the shell barrel, an upper step (45) is arranged on the 4 sides of the upper hole, an upper arc-shaped cover plate (46) is arranged in the upper hole, an upper handle (47) is arranged at the upper end of the upper arc-shaped cover plate, the photoelectric encoder read head is arranged at the rear lower end of the upper arc-shaped cover plate, the photoelectric encoder read head is provided with a transmitting head (48) and a receiving head (49), the photoelectric encoding disc (50) is arranged between the transmitting head and the receiving head, and the photoelectric encoding; a signal acquisition control module (51) is arranged at the upper front end in the shell barrel, the input end and the output end of the signal acquisition control module are connected with the output line of the reading head of the photoelectric encoder and the output line of the electromagnetic brake, an upper line hole (52) is arranged at the upper end of the rear coupling end cover, the output lines of the electromagnetic brake, the reading head of the photoelectric encoder and the signal acquisition control module are combined into a control cable (53) and led out from the upper line hole, the control cable is connected with a main controller of the elevator, and the photoelectric encoder provides position information of the elevator for the main; the modular elevator traction machine is provided with an electromagnetic brake, the electromagnetic brake consists of a front brake, a rear brake and a brake disc, the lower end of a shell cylinder is provided with a lower hole, the 4 sides of the lower hole are provided with a lower step (54), the lower hole is internally provided with a lower arc-shaped cover plate (55), the lower end of the lower arc-shaped cover plate is provided with a lower handle (56), the lower end of the lower arc-shaped cover plate is provided with the front brake and the rear brake, the front brake is provided with a front support (57), the upper end of the front support is provided with a front cylindrical iron core (58), the excircle of the front cylindrical iron core is provided with a front electromagnetic coil (59), the excircle of the front electromagnetic coil is provided with a front magnetic cylinder (60), the front and rear ends of the front magnetic cylinder are provided with front annular end covers (61), the rear end of each front annular; the rear electromagnetic brake is provided with a rear support (64), a rear cylindrical iron core (65) is arranged at the upper end of the rear support, a rear electromagnetic coil (66) is arranged on the excircle of the rear cylindrical iron core, a rear magnetic conduction cylinder (67) is arranged on the excircle of the rear electromagnetic coil, rear annular end covers (68) are arranged at the front end and the rear end of the rear magnetic conduction cylinder, a rear brake shoe (69) is arranged at the front end of each rear annular end cover, and a rear spring (70) is arranged between the excircle of the rear cylindrical iron core, the rear annular end; a brake disc (71) is arranged between the front brake shoe and the rear brake shoe, the brake disc is arranged on the excircle of the magnetic conduction cylinder and is positioned at the front end of the photoelectric coding disc, when the outer rotor brushless motor and the front and rear electromagnetic coils are in a power failure state, the front and rear brake shoes are tightly clamped by the brake disc under the pressure of the front and rear springs, so that the outer rotor brushless motor is in a braking state in the power failure state, and when the outer rotor brushless motor and the front and rear electromagnetic coils are in a power-on state, the front and rear brake shoes are loosened by magnetic force generated by the front and rear electromagnetic coils, so that the outer rotor brushless motor rotates normally; the front lower end of the shell cylinder is provided with a brushless motor control module (72), the lower end of the rear coupling end cover is provided with a lower line hole (73), an output line (74) of the brushless motor control module is led out from the lower line hole, the output line of the brushless motor control module is connected with a motor line of the outer rotor brushless motor, the upper arc-shaped cover plate is provided with a plurality of upper countersunk head screws (75), the lower arc-shaped cover plate is provided with a plurality of lower countersunk head screws (76), and the upper arc-shaped cover plate and the lower arc-shaped cover plate are respectively fastened on an upper step and a lower step at the 4 sides of the upper hole and the lower; the module type elevator traction machine integrates the cycloidal pin wheel speed reducer, the electromagnetic brake, the photoelectric encoder, the signal acquisition control module and the brushless motor control module with the outer rotor brushless motor in a parallel structure form, has simple structure and low cost, has high module type structure integration level and small volume, and greatly improves the load dead weight ratio and the universality of equipment; the slender outer rotor brushless motor has short reactive coil end, long active coil, high power density and high efficiency; the diameter of the needle wheel rim is large, so that the reduction ratio of the cycloidal needle wheel speed reducer is increased, the rotating speed of the outer rotor brushless motor is improved, and the efficiency is improved; the electromagnetic brake and the outer rotor brushless motor work synchronously, the elevator is braked after an elevator system is powered off, so that the elevator brake is safe and reliable, the installation, debugging and maintenance of the module type elevator traction machine are simpler and more convenient due to the upper arc-shaped cover plate and the lower arc-shaped cover plate, and the electromechanical integrated module type elevator traction machine has the advantages of good safety, strong universality and low structural cost.

Images