CN101222162A - Permanent magnetic synchronous arm rest lift traction machine - Google Patents
Permanent magnetic synchronous arm rest lift traction machine Download PDFInfo
- Publication number
- CN101222162A CN101222162A CNA2007101440047A CN200710144004A CN101222162A CN 101222162 A CN101222162 A CN 101222162A CN A2007101440047 A CNA2007101440047 A CN A2007101440047A CN 200710144004 A CN200710144004 A CN 200710144004A CN 101222162 A CN101222162 A CN 101222162A
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- gear
- permanent magnetic
- traction machine
- arm rest
- motor
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B50/00—Energy efficient technologies in elevators, escalators and moving walkways, e.g. energy saving or recuperation technologies
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- Escalators And Moving Walkways (AREA)
Abstract
A permanent magnetic synchronous escalator tractor, a prime move of which adopts a permanent magnetic synchronous motor of the permanent synchronous magnetic technique, transforms the output of the permanent magnetic synchronous motor into the output of the escalator tractor through a retarding mechanism. The permanent magnetic synchronous motor and a gear retarding and transmitting structure are fixed on a tractor base; the gear retarding and transmitting structure is a primary gear transmitting structure, wherein a high-speed gear shaft is a motor shaft of the permanent magnetic synchronous motor; a low-speed gear shaft is an output shaft of the permanent magnetic synchronous escalator tractor; the high-speed gear shaft and the low-speed gear shaft are in pair connection through gears; the work efficiency of the permanent magnetic synchronous escalator tractor of the structure can normally reach from 0.87 to 0.9. Compared with prior escalator tractors, the work efficiency is raised by from 40 to 50 percent; the tractor can be used in driving an automatic escalator and a moving sidewalk. Because the permanent synchronous magnetic technique and the high-efficiency primary helical gear transmission are adopted, a quite high transmitting efficiency can be achieved, the effect of energy saving and environment protection is achieved as well.
Description
Technical field
The present invention relates to the traction machine that uses on a kind of escalator or the moving sidewalk.
Background technology
Because the application scenario of arm rest lift traction machine has determined that the maximum characteristics of arm rest lift traction machine work are the big torques of the slow-speed of revolution.Generally about 40rpm, this speed obviously can't realize for traditional ac three-phase asynchronous motor for present arm rest lift traction machine, output rotating speed.And because the needed torque of lifting escalator is very big, generally at 1100～3000N.m, so traditional arm rest lift traction machine all is made up of two parts: motor and speed reducer.General motor is an ac three-phase asynchronous motor, is prime mover of traction machine, reduces rotating speed by a worm-gear speed reducer then, increases torque.The advantage of worm and gear transmission be easy to very big single staged transmission ratio; But its shortcoming also clearly, is exactly that transmission efficiency is low excessively, is generally about 0.7.In addition, because asynchronous machine needs exciting current to generate an electromagnetic field in the course of the work, the copper loss and the iron loss of reactive loss and stator (or rotor) have been increased, so its power factor is lower, be generally about 0.8, therefore existing arm rest lift traction machine only is about 0.6 in the efficient under the nominal operation state.And power loss is bigger during startup, if consider the energy loss of (as starting state) under the off-nominal behavior, efficient will be lower.Therefore, a big defective of traditional arm rest lift traction machine is exactly an inefficiency, and energy has wasted greatly.
Some energy-saving escalators are also arranged now, and version is the worm and gear transmission that changes traditional poor efficiency, the gear drive of employing.But only be to have changed running part, what prime mover still adopted is the asynchronous motor of high speed low torque, and product only is that the two is simply pieced together together, such as there being a kind of product exactly asynchronous motor to be placed on a gear reduction box top, power output by belt transmission prize motor is delivered on the gear reduction box, again by the reduction box final power output of slowing down.This traction machine because speed reducing ratio is higher, must cause efficient greatly to reduce.And only just asynchronous machine and this machine of two kinds of gear reduction box are carried out the assembly unit of machinery, and can not realize organic combination, product machinery and electric property are difficult to be guaranteed.
Summary of the invention
The objective of the invention is to: design a kind of novel arm rest lift traction machine, this traction machine can realize dragging the function of escalator, and operating efficiency is greatly improved, and plays energy-saving and cost-reducing effect.
In order to realize above purpose, the present invention has adopted following structure, and prime mover has adopted the permagnetic synchronous motor of permanent-magnet synchronous technology, the output of permagnetic synchronous motor is converted into the output of arm rest lift traction machine by reducing gear.On machine bed, be fixed with permagnetic synchronous motor and gear reduction drive mechanism, the gear reduction drive mechanism is the one-level gear transmission structure, wherein high speed gear shaft is the motor shaft of permagnetic synchronous motor, the low-speed gear axle is the output shaft of permanent magnetic synchronous arm rest lift traction machine, and high speed gear shaft is connected by gear pair with the low-speed gear axle; The traction machine support is divided in two parts, aft section is as the casing of permagnetic synchronous motor, the motor bonnet is attached thereto, the permagnetic synchronous motor part is housed in the shell, the previous section of traction machine support is a gear box body, the high gear shaft end by bearings on the end cap of deceleration box, the low-speed gear axle also passes through the bearings at two ends on traction machine support and reduction box end cap, and end stretches out the output shaft of a reduction box end cap part as traction machine, and the reduction box end cap is fixed on the machine bed; High speed gear shaft is provided with cylindric spiral gear, and with the low-speed gear axle on low speed gear wheel engagement.
The present invention is a kind of a kind of high efficiency traction machine that permagnetic synchronous motor and high efficiency gear drive are organically combined.The slow-speed of revolution large torque and high-efficient rate of permagnetic synchronous motor and the high efficiency of slant gear transmission have been made full use of.Therefore can under lower-speed state, export very big torque, not need the required torque of escalator that just can get a promotion of very high gearratio.Therefore only in one embodiment of the present invention, the permagnetic synchronous motor rotating speed is 160rpm, and the output torque can reach 750N.m, need be output torque and the rotating speed that 4 reducing gear just can be met work requirements by a speed reducing ratio.Particularly adopt the one-level slant gear transmission.Its transmission advantage is a stable drive, long service life, transmission efficiency height.Generally can reach 0.96～0.99.And because input adopts is permagnetic synchronous motor, its in the course of the work magnetic field be to produce by permanent magnet, saved the exciting current in the asynchronous motor course of work, motor power factor approaches 1.Therefore electric efficiency is than the asynchronous motor height, and because permagnetic synchronous motor also can be exported very big torque under lower-speed state, so its efficient basically identical under each working condition.Therefore, the efficient of permagnetic synchronous motor can reach more than 0.9.Based on above principle, the novel permanent magnetic synchronous arm rest lift traction machine of mentioning here, operating efficiency generally can reach 0.87～0.9.Compare with traditional arm rest lift traction machine, efficient improves 40～50%.
This traction machine can be used for dragging of escalator, moving sidewalk.Owing to adopt the permanent-magnet synchronous technology, and adopt the very high one-level helical gear transmission of efficient,, play effect in energy saving and environmental protection so can realize very high transmission efficiency.
Description of drawings
Fig. 1 is a structure chart of the present invention
Fig. 2 is the A----A profile of Fig. 1
Embodiment
Prime mover is the permagnetic synchronous motor that has adopted the permanent-magnet synchronous technology among the present invention, the output of permagnetic synchronous motor is converted into the output of arm rest lift traction machine by reducing gear.
The specific embodiment of the invention is described below: we see from figure, and traction machine support 13 is divided in two parts, and aft section has a motor bonnet 3 that motor stator 2 is housed to be attached thereto as the casing 14 of permagnetic synchronous motor on it.In casing inside, the outside of motor stator 2 is rotors 1, and it and high speed gear shaft (motor shaft) 7 are for being rigidly connected, and by the bearing 16 at high speed gear shaft two ends, rotor 1 is fixed on the inside of motor case, and can be around motor stator 2 rotations.The previous section of traction machine support 13 is gear box bodies 4, high speed gear shaft (motor shaft) 7 is partly with cylindric spiral gear 5 from what motor internal was stretched, and with gear wheel 19 engagement, high speed gear shaft 7 ends are supported on the reduction box end cap 5 by bearing 16, another part as gear drive, low-speed gear axle (output shaft) 18 also is supported on traction machine support 13 and the reduction box end cap 5 by the bearing 17 at two ends, and terminal 8 stretch out reduction box end cap 5 parts, are used to install the sprocket wheel (not shown) that drags escalator and commentaries on classics.In addition, when needing to brake in the work, be to realize by the outer surface friction of brake scotch 9 with rotor 1.Brake scotch 9 is installed on above the brake arm 10, and the pressure that produces by tripping spring 11 compression during braking is pressed in brake scotch on the outer surface of rotor 1 and produces friction, to reach braking effect.When traction machine was worked, 12 energisings of magnetic force device produced reverse thrust, to overcome the pressure of spring, brake scotch 9 are separated with rotor 1 outer surface, and rotor 1 can freely rotate.
The operation principle of this permanent magnetic synchronous arm rest lift traction machine is as follows: after the energising, form a rotating magnetic field above the motor stator 2, drive the external rotor 1 that posts permanent magnet thus, external rotor 1 drives the high speed gear shaft (motor shaft) 7 that is attached thereto and rotates therewith; By the transmission of one-level helical gear, drive the low speed Large Gear Shaft During (output shaft) 18 that is meshed and rotate then, realized the transmission of power thus, the energy delivery of the output of motor is to output shaft the most at last.Quit work or when braking, in the time of the motor outage, magnetic force device 12 also cut off the power supply, tripping spring 11 is pressed in brake scotch 9 on rotor 1 outer surface by brake arm 10, makes the traction machine maintenance static.
When the present invention is used for dragging of escalator, moving sidewalk with permagnetic synchronous motor, can on permagnetic synchronous motor, increase reducing gear, single-stage slant gear transmission recited above is a kind of execution mode wherein, also can change to other kinds of drive according to the output demand, as the multi-stage gear transmission, the worm and gear transmission.
Claims (5)
1. permanent magnetic synchronous arm rest lift traction machine, it is characterized in that: prime mover is the permagnetic synchronous motor that has adopted the permanent-magnet synchronous technology, the output of permagnetic synchronous motor is converted into the output of arm rest lift traction machine by reducing gear.
2. according to claim 1 described permanent magnetic synchronous arm rest lift traction machine, it is characterized in that: on machine bed, be fixed with permagnetic synchronous motor and gear reduction drive mechanism, the gear reduction drive mechanism is the one-level gear transmission structure, wherein high speed gear shaft is the motor shaft of permagnetic synchronous motor, the low-speed gear axle is the output shaft of permanent magnetic synchronous arm rest lift traction machine, and high speed gear shaft is connected by gear pair with the low-speed gear axle.
3. according to claim 1 or 2 described permanent magnetic synchronous arm rest lift traction machines, it is characterized in that: the traction machine support is divided in two parts, aft section is as the casing of permagnetic synchronous motor, the motor bonnet is attached thereto, the permagnetic synchronous motor part is housed in the shell, the previous section of traction machine support is a gear box body, the high gear shaft end by bearings on the end cap of deceleration box, the low-speed gear axle also passes through the bearings at two ends on traction machine support and reduction box end cap, and end stretches out the output shaft of a reduction box end cap part as traction machine, and the reduction box end cap is fixed on the machine bed.
4. according to claim 1,2 or 3 described permanent magnetic synchronous arm rest lift traction machines, it is characterized in that: high speed gear shaft is provided with cylindric spiral gear, and with the low-speed gear axle on low speed gear wheel engagement.
5. according to claim 1 described permanent magnetic synchronous arm rest lift traction machine, it is characterized in that: reduction gearing mechanism can be the kinds of drive such as multi-stage gear drive mechanism, planetary gear transmission or worm and gear transmission.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101440047A CN101222162A (en) | 2007-12-10 | 2007-12-10 | Permanent magnetic synchronous arm rest lift traction machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101440047A CN101222162A (en) | 2007-12-10 | 2007-12-10 | Permanent magnetic synchronous arm rest lift traction machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101222162A true CN101222162A (en) | 2008-07-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101440047A Pending CN101222162A (en) | 2007-12-10 | 2007-12-10 | Permanent magnetic synchronous arm rest lift traction machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101222162A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102515001A (en) * | 2011-11-30 | 2012-06-27 | 日立电梯（中国）有限公司 | Elevator tractor |
| TWI453159B (en) * | 2010-04-29 | 2014-09-21 | Shanghai Yungtay Gie Em Co Ltd | Traction machine |
| CN105035933A (en) * | 2015-08-25 | 2015-11-11 | 上海爱登堡电梯集团股份有限公司 | High rise escalator with efficient driving host |
| CN116780815A (en) * | 2023-05-25 | 2023-09-19 | 浙江弗尔德驱动科技有限公司 | Permanent magnet efficient energy-saving semi-direct-drive motor for reforming ladder and operation method |
-
2007
- 2007-12-10 CN CNA2007101440047A patent/CN101222162A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI453159B (en) * | 2010-04-29 | 2014-09-21 | Shanghai Yungtay Gie Em Co Ltd | Traction machine |
| CN102515001A (en) * | 2011-11-30 | 2012-06-27 | 日立电梯（中国）有限公司 | Elevator tractor |
| CN105035933A (en) * | 2015-08-25 | 2015-11-11 | 上海爱登堡电梯集团股份有限公司 | High rise escalator with efficient driving host |
| CN116780815A (en) * | 2023-05-25 | 2023-09-19 | 浙江弗尔德驱动科技有限公司 | Permanent magnet efficient energy-saving semi-direct-drive motor for reforming ladder and operation method |
| CN116780815B (en) * | 2023-05-25 | 2024-03-22 | 浙江弗尔德驱动科技有限公司 | Permanent magnet efficient energy-saving semi-direct-drive motor for reforming ladder and operation method |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: XUCHANG XJ ELEVATOR CO., LTD. Free format text: FORMER OWNER: XUCHANG BOMA TRACTOR MANUFACTURING CO., LTD. Effective date: 20100115 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20100115 Address after: Postal code of Xuchang economic and Technological Development Zone, Henan 461000, China Applicant after: Xuchang XJ Elevator Co., Ltd. Address before: The west section of sunshine road, Xuchang economic and Technological Development Zone, Henan Province, China: 461000 Applicant before: Xuchang BOMA Traction Machine Co., Ltd. |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20080716 |