CN202007074U - Gearless permanent magnetic synchronous driving host of escalator - Google Patents

Gearless permanent magnetic synchronous driving host of escalator Download PDF

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Publication number
CN202007074U
CN202007074U CN2011200487442U CN201120048744U CN202007074U CN 202007074 U CN202007074 U CN 202007074U CN 2011200487442 U CN2011200487442 U CN 2011200487442U CN 201120048744 U CN201120048744 U CN 201120048744U CN 202007074 U CN202007074 U CN 202007074U
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CN
China
Prior art keywords
permanent
escalator
brake
driving
magnet
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CN2011200487442U
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Chinese (zh)
Inventor
李振才
王福强
于凤军
张飞
王岩卿
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHENYANG YUANDA INTELLECTUAL INDUSTRY GROUP CO., LTD.
Original Assignee
Shenyang Brilliant Elevator Co Ltd
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Priority to CN2011200487442U priority Critical patent/CN202007074U/en
Application granted granted Critical
Publication of CN202007074U publication Critical patent/CN202007074U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

An improved gearless permanent magnetic synchronous driving host of an escalator solves the problems of low operation efficiency, high noise and pollution of lubricating oil of the prior art. The driving host comprises a permanent-magnet synchronous motor with an internal contracting brake device and an escalator sprocket wheel driving device driven by the motor, and is characterized in that a rotor of the permanent-magnet synchronous motor employs a tangential magnetic circuit structure of a multipolar permanent magnet having a pole number range of 12-30, the permanent magnet is inserted in a rotor iron core having a T-shaped groove end face, and a stator employs a skewed slot iron core and a fractional-slot winding structure. The escalator sprocket wheel driving device is directly connected with a driving shaft of the permanent-magnet synchronous motor through a chain and a small sprocket wheel connected with a large sprocket wheel. The driving host has a reasonable and compact structure, and is convenient for maintenance, strong in overload capability, reduced in electric losses, and low in noises and environmental pollution. Machine room occupies small space. Moreover, the operation efficiency can be improved, and manufacturing and maintenance cost can be reduced.

Description

Escalator gearless permanent-magnet driven in synchronism main frame
Technical field
The utility model relates to a kind of actuating device that is used for escalator, particularly a kind of escalator gearless permanent-magnet driven in synchronism main frame that adopts multipole permanent magnet, tangential magnetic structure and air sac brake equipment also is applicable to the driving host as moving sidewalk.The control of braking technical field that belongs to escalator and moving sidewalk.
Background technology
Continuous development along with national economy, in order to ensure the flow of personnel in places such as market, station, airport rapidly, safety, escalator should be able to satisfy the needs of diversification such as operation is quick, energy-saving and environmental protection, safety, easy care as one of main vehicle.Traditional escalator adopts the asynchronous dynamo towing machine with snail opinion worm gear box as driving host, and efficient is lower.In mechanical drive, though the worm and gear driving system has the big advantage of transmitting ratio, because of it exists efficient low, shortcoming such as power consumption is big, and running noises is big, gear case need lubricate is so influence its application.Generally, the driving efficiency of worm-and-wheel gear has the electric energy above 30% all to be wasted 60~75% approximately, and operating efficiency is very low.According to reports, because of the development of modern control theory and technology and the progress of permanent magnet motor design and manufacturing technology, so design and manufacturing to escalator require also more and more higher, therefore, the driving system of escalator towing machine all is improved at aspect of performances such as vibration, noise and low speed smooth runnings.As patent announcement number is CN101222162A " permanent magnetic synchronous arm rest lift traction machine ", has adopted the multi-stage speed-reducing gear between permanent-magnet synchronous main frame and drive wheel; Notification number be CN201151604Y's " escalator ", adopted cylindric spiral gear; Patent publication No. be CN101293614A's " escalator or moving sidewalk actuating device ", adopted epicyclic gear box; " permagnetic synchronous motor drives the turning gear of escalator and moving sidewalk " of notification number CN1313352C; Also has sun and planet gear.All same existence the in these disclosed contents because of adopting reducing gearbox (mainly adopting helical wheel, epicyclic gear transmission) to reduce the operating efficiency of total system, noise is big, the problems such as pollution of lubricating oil, and there are the processing technology complexity in helical wheel, planetary wheel, the cost height, defectives such as maintenance cost height.The asynchronous dynamo synchronous speed that existing escalator adopts is higher, is generally 1000rpm, realize in the safety rate about unloaded, have when carrying downwards that the requirement ratio of operation stop distance is easier to.But the intrinsic inertia of driving system that adopts escalator after the permanent-magnet synchronous driving host and footway has relatively and carries, and particularly the inertia of at full load is less.According to the requirement among the new edition European standard EN115-1:2008 " manufacturing of escalator and moving sidewalk with install safety standard ", when being 0.5m/s about the specified speed of stop distance range, the stop distance should be at 0.2~1.0m.Therefore, satisfy in the safety rate requirement, must improve and perfect existing driving brake equipment or brake control method about the stop distance range.
The utility model content
The purpose of this utility model provides a kind of improved escalator gearless permanent-magnet driven in synchronism main frame, low, the problems such as noise big, lubricant pollution of operating efficiency that prior art exists have been solved, its reasonable in design, compactness, machine room takes up room little, and is easy to maintenance, and overload capacity is strong, reduce electric energy loss, noise is low, reduces environmental pollution, significantly improves operating efficiency and reduces manufacturing, maintenance cost.
The technical scheme that the utility model adopted is: this escalator gearless permanent-magnet driven in synchronism main frame comprises the permasyn morot that has the brake sticking brake device and the staircase chain sprocket driving device of drive thereof, its technical essential is: it is the tangential magnetic structure of 12~30 multipole permanent magnet that the rotor of described permasyn morot adopts the number of poles scope, described permanent magnet insertion groove end face is in the rotor core of T shape, stator adopts the unshakable in one's determination and fractional-slot winding structure of skewed slot, and described staircase chain sprocket driving device is directly connected to the axle drive shaft of described permasyn morot by chain and hinge wheel bonded assembly minor sprocket.
The axle head of described axle drive shaft is fixed with rotary encoder, rotary encoder outer setting coder protective cover.
Be provided with the air bag mechanism of exhaust shutter between the brake control lever of described brake sticking brake device and the Brake Block, the air extractor duct of described air bag mechanism is provided with speed-regulating valve.
Advantage and the good effect that the utlity model has are: because the rotor of the utility model permasyn morot adopts the number of poles scope is the tangential magnetic structure of 12~30 multipole permanent magnet, permanent magnet insertion groove end face is in the rotor core of T shape, stator adopts the unshakable in one's determination and fractional-slot winding structure of skewed slot, can strengthen the startup effect, moving, steady-state behaviour is good; Magnetic flux under pole span is provided by adjacent two magnetic pole parallel connections, can obtain bigger every utmost point magnetic flux, can export high torque (HT) when slow speed of revolution moves.Therefore, its reasonable in design, compactness, overload capacity is strong, reduces electric energy loss, has easy to maintenancely, noise is low, reduces environmental pollution, significantly improve operating efficiency and reduce make, the characteristics of maintenance cost.Be directly connected on the output shaft of permasyn morot because of minor sprocket again, saved drive gearbox, reduced the use of lubricating oil, motor bed-plate is simultaneously as the main frame support, directly be fixed in the staircase machine room, so significantly reduced volume and complete machine quality, its installation is easy to adjust, machine room takes up room little, has greatly improved the installation environment of escalator machine room.The utility model has solved low, the problems such as noise big, lubricant pollution of operating efficiency that prior art exists.Show through actual detected: the magnetic field in this device working process is produced by permanent magnet, saved the exciting current in the asynchronous motor working process, motor power factor approaches 1, also can export very big torque under lower-speed state, its efficient basically identical under each working condition; Application of the present utility model can be satisfied GB16899 and the EN115 requirement about the respective standard regulation of stop distance range.Can make the escalator work efficiency can reach 0.8~0.9, with common staircase mutually specific efficiency can improve 40%~50%.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further described.
Fig. 1 is a kind of concrete structure scheme drawing of the present utility model;
Fig. 2 is a kind of structural representation of permasyn morot among Fig. 1.
Fig. 3 is the lateral plan of Fig. 2.
Fig. 4 is a kind of structural representation of the air bag mechanism among Fig. 3.
Sequence number explanation among the figure: 1 permasyn morot, 2 minor sprockets, 3 chains, 4 hinge wheels, 5 supports, 6 axle drive shafts, 7 brake wheels, 8 brake control levers, 9 permanent magnets, 10 stator cores, 11 rotors, 12 rotary encoders, 13 slipper, 14 Brake Blocks, 15 air bag mechanisms, 16 speed-regulating valves, 17 drg push rods.
The specific embodiment
Describe concrete structure of the present utility model in detail according to Fig. 1~4.This escalator gearless permanent-magnet driven in synchronism main frame is fixed in the machine room upper of escalator, and motor cabinet is as main frame support and machine room base cross members screw direct connection.It comprises permasyn morot 1 that has the brake sticking brake device and the staircase chain sprocket driving device that drives thereof.Wherein the staircase chain sprocket driving device adopts usually by the structure of chain 3 bonded assembly hinge wheels 4 with minor sprocket 2.Minor sprocket 2 is directly connected on the axle drive shaft 6 of permasyn morot 1, drives the staircase operation by chain 3 and hinge wheel 4.The axle drive shaft 6 of this permasyn morot 1 promptly is the driving output shaft of main frame, does not have the gear case speed reduction gearing in the middle of permasyn morot and the minor sprocket, and main machine structure is simple, cost reduces, and the operating efficiency height reduces electric energy loss, reduce noise, realize that main frame is non-maintaining.Wherein permanent-magnet synchronous motor rotor 11 adopts the tangential magnetic structure of multipole permanent magnet, and the number of poles scope is 12~30.Permanent magnet 9 insertion groove end faces are in the rotor core 10 of T shape, and flume structure is adopted in stator core 10, and stator winding adopts the fractional-slot winding structure.Permanent magnet 9 insertion groove end faces are in the rotor core of T shape structure, embed rotor core inside with rectangle permanent magnet 9, have improved safe reliability, along with the increase of rotating speed and capacity, particularly inner rotor core, and the installation of permanent magnet 9, fixing particularly important; And permanent magnet 9 effects in parallel in the tangential magnetic structure, there are two permanent magnet cross sections to provide every grade of magnetic flux to air gap, improve air gap flux density, especially outstanding at number of poles, so detent torque is greater than magnetic circuit radially, substitute conventional watt shape permanent magnet with rectangle permanent magnet 9 simultaneously, reduced the line cutting man-hour and the consumption of permanent magnet 9.The skewed slot of stator core 10 can be eliminated cogging torque, reduces torque pulsation, and fractional-slot winding can make stator tooth and rotor 11 each magnetic pole stagger mutually, thereby has reduced location torque and cogging torque; Can weaken the high order harmonic electromotive force that the magnetic pole and magnetic field non-sine distributes and produced; Can weaken the amplitude of slot ripples electromotive force effectively, improve the waveform of electro-motive force; Reduced to change the pulsating amplitude of the every utmost point magnetic flux that causes, reduced the pulsation loss of pole surface because of air-gap permeance.
The brake control lever 8 of brake sticking brake device directly acts on the periphery of brake wheel 7 by slipper 13, and it is fast to have speed of response, the advantage that braking torque is big.One end of axle drive shaft 6 directly is assembled with brake wheel 7, and brake wheel 7 is formed the brake sticking brake device with the brake control lever 8 and the magnet stopper that are assembled on the support 5.Another axle head of axle drive shaft 6 is fixed with rotary encoder 12, by the velocity location checking system that rotary encoder 12 is formed, can make the escalator speed control accurate.Rotary encoder 12 outer setting coder protective covers, this protective cover play the effect of location rear bearing also as the enclosing cover of rear side housing.Be provided with the air bag mechanism 15 of exhaust shutter between the brake control lever 8 of brake sticking brake device and the Brake Block 14, the air extractor duct of air bag mechanism 15 is provided with speed-regulating valve 16, can be by the pressure in the speed-regulating valve 16 adjustment air bag mechanisms 15, reach the purpose of brake control lever 8 responsivenesses of control brake sticking brake device, thereby guaranteed requirement about the stop distance range.Exhaust shutter in the air bag mechanism 15 puts on the air under action of the spring, and exhaust shutter is inoperative during inflation, and when exhaust, exhaust shutter works, and makes the used time of exhaust greater than the gas filed time.The admission port of air bag mechanism 15 chambers is big, and it is young to give vent to anger, and can not have deferred action when the brake sticking brake device is opened; When the brake sticking brake device is closed, inlet close can adjust the size of gas port by speed-regulating valve 16, thereby the pressure of adjusting in air bag mechanism 15 chambers changes, the speed that comes control brake arm 8 braking forces to change, thus the requirement of stop distance is satisfied in realization.

Claims (3)

1. escalator gearless permanent-magnet driven in synchronism main frame, comprise the permasyn morot that has the brake sticking brake device and the staircase chain sprocket driving device of drive thereof, it is characterized in that: it is the tangential magnetic structure of 12~30 multipole permanent magnet that the rotor of described permasyn morot adopts the number of poles scope, described permanent magnet insertion groove end face is in the rotor core of T shape, stator adopts the unshakable in one's determination and fractional-slot winding structure of skewed slot, and described staircase chain sprocket driving device is directly connected to the axle drive shaft of described permasyn morot by chain and hinge wheel bonded assembly minor sprocket.
2. gearless permanent-magnet synchronous arm rest lift driving host according to claim 1, it is characterized in that: the axle head of described axle drive shaft is fixed with rotary encoder, rotary encoder outer setting coder protective cover.
3. gearless permanent-magnet synchronous arm rest lift driving host according to claim 1, it is characterized in that: be provided with the air bag mechanism of exhaust shutter between the brake control lever of described brake sticking brake device and the Brake Block, the air extractor duct of described air bag mechanism is provided with speed-regulating valve.
CN2011200487442U 2011-02-28 2011-02-28 Gearless permanent magnetic synchronous driving host of escalator Expired - Lifetime CN202007074U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011200487442U CN202007074U (en) 2011-02-28 2011-02-28 Gearless permanent magnetic synchronous driving host of escalator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011200487442U CN202007074U (en) 2011-02-28 2011-02-28 Gearless permanent magnetic synchronous driving host of escalator

Publications (1)

Publication Number Publication Date
CN202007074U true CN202007074U (en) 2011-10-12

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102161455A (en) * 2011-02-28 2011-08-24 沈阳博林特电梯股份有限公司 Gearless permanent-magnet synchronous driving motor used for escalator
CN112003395A (en) * 2019-09-02 2020-11-27 青岛中加特电气股份有限公司 Permanent magnet frequency conversion integrated motor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102161455A (en) * 2011-02-28 2011-08-24 沈阳博林特电梯股份有限公司 Gearless permanent-magnet synchronous driving motor used for escalator
CN112003395A (en) * 2019-09-02 2020-11-27 青岛中加特电气股份有限公司 Permanent magnet frequency conversion integrated motor

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GR01 Patent grant
C14 Grant of patent or utility model
CP02 Change in the address of a patent holder

Address after: 110027 Shenyang economic and Technological Development Zone, Liaoning Road, No. 27

Patentee after: Shenyang Brilliant Elevator Co., Ltd.

Address before: 110027, No. 27, No. sixteen, great road, Shenyang economic and Technological Development Zone, Liaoning

Patentee before: Shenyang Brilliant Elevator Co., Ltd.

C56 Change in the name or address of the patentee
CP01 Change in the name or title of a patent holder
CP01 Change in the name or title of a patent holder

Address after: 110027 Shenyang economic and Technological Development Zone, Liaoning Road, No. 27

Patentee after: SHENYANG BRILLIANT ELEVATOR CO., LTD.

Address before: 110027 Shenyang economic and Technological Development Zone, Liaoning Road, No. 27

Patentee before: Shenyang Brilliant Elevator Co., Ltd.

C56 Change in the name or address of the patentee

Owner name: SHENYANG BRILLIANT ELEVATOR GROUP CO., LTD.

Free format text: FORMER NAME: SHENYANG BRILLIANT ELEVATOR CO., LTD.

C56 Change in the name or address of the patentee
CP03 Change of name, title or address

Address after: 110027, No. 27, development road, Shenyang economic and Technological Development Zone, Shenyang, Liaoning

Patentee after: SHENYANG YUANDA INTELLECTUAL INDUSTRY GROUP CO., LTD.

Address before: 110027 Shenyang economic and Technological Development Zone, Liaoning Road, No. 27

Patentee before: SHENYANG BRILLIANT ELEVATOR CO., LTD.

CX01 Expiry of patent term
CX01 Expiry of patent term

Granted publication date: 20111012