CN101020551A - Drag for service elevator - Google Patents

Drag for service elevator Download PDF

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Publication number
CN101020551A
CN101020551A CN 200610155079 CN200610155079A CN101020551A CN 101020551 A CN101020551 A CN 101020551A CN 200610155079 CN200610155079 CN 200610155079 CN 200610155079 A CN200610155079 A CN 200610155079A CN 101020551 A CN101020551 A CN 101020551A
Authority
CN
China
Prior art keywords
drag
gear
drop
output shaft
gear box
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.)
Pending
Application number
CN 200610155079
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Chinese (zh)
Inventor
李创平
冯勇明
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.)
HANGZHOU FUWODE ELECTRONIC APPLIANCE CO Ltd
Original Assignee
HANGZHOU FUWODE ELECTRONIC APPLIANCE CO Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by HANGZHOU FUWODE ELECTRONIC APPLIANCE CO Ltd filed Critical HANGZHOU FUWODE ELECTRONIC APPLIANCE CO Ltd
Priority to CN 200610155079 priority Critical patent/CN101020551A/en
Publication of CN101020551A publication Critical patent/CN101020551A/en
Pending legal-status Critical Current

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Abstract

The present invention relates to elevator drag, is especially one kind of drag for service elevator, and belongs to the field of elevator driver. With the technological progress, gear worm transmission is replaced by permanent magnetic no-gear drag and high efficiency and great torque reducer box. The drag for service elevator of the present invention has permanent magnetic synchro motor and bevel gear transmission box with high transmission efficiency, and features the output shaft of the reducer box with unloading flange and drag wheel supported with bearing and to transmit torque while eliminating gear meshing deformation caused by radial force. The drag for service elevator of the present invention has the features of compact structure, high transmission efficiency, low cost and excellent energy saving effect.

Description

Cargo lift tractor
Technical field
The present invention relates to a kind of elevator traction machine, especially a kind of cargo lift tractor belongs to the elevator lifting actuating device.
Background technology
At present, Cargo Lift lifting driving arrangement---the towing machine that generally uses generally is the drop-gear box with worm and gear transmission both at home and abroad, and the power motor that is adopted is a three phase asynchronous motor.The shortcoming of this towing machine is: complex structure, relate to that part is many, machine volume is big, Heavy Weight, processed complex, cost height, machinery driving efficiency are low, and the power capability to motor requires high, wherein Zui Da shortcoming is that the friction drag of worm and gear is big, driving efficiency is low, the power factor of the asynchronous motor of the power that produces is also low, and inefficiency also causes great waste for electric power resource.So it is supporting that towing machine of the present invention does not adopt the Worm-gear type speed reduction gearing.
Along with technology and requirements of saving energy, the worm and gear transmission is just replaced by power factor high permanent-magnet synchnorous gearless dragging machine and high efficiency, great torque reducer box.This mainly is that permanent-magnet synchnorous gearless dragging machine is higher because of its power factor, even can be up to more than 98%, and it can economize on electricity 20%~30% with respect to asynchronous dynamo, is therefore more and more extensively adopted.But, when needs transmission during, be provided with and just have certain difficulty, and cost is relatively also higher than high pulling torque because permanent-magnet synchnorous gearless dragging machine does not have drop-gear box to be used for increasing the moment of torsion of towing machine.
The planetary gear type transmission elevator traction machine that people see usually, its gear ring needs detailed manufacture, the flank of tooth is through grinding and nitrogen hardening, though improved contact ratio, make the complete machine mechanical efficiency up to 95%, but the tooling cost of this planetary wheel towing machine is quite high, approximately is 2~4 times of worm and gear transmission towing machine, and this also is that it can not be by the biggest obstacle place of widespread usage.
Also have a kind of mode---the helical wheel transmission, its drop-gear box volume is little, the transmission efficiency height, tooling cost is low, and mechanical transfer efficient can reach more than 95%, if but gear wheel shaft has distortion will cause the noise and the vibration of whole gear case slightly.The structure of this towing machine be rope sheave directly by key connecting on reduction gearbox output shaft, reduction gearbox output shaft is subjected to causing behind the radial pressure gear wheel shaft distortion causing vibration, has therefore hindered the application of helical wheel deceleration case on towing machine.The present invention is intended to utilize helical wheel deceleration case advantage, and output shaft and rope sheave part are improved, simultaneously in conjunction with permanent-magnet synchnorous gearless dragging machine.
Patent documentation by retrieval, be equipped with drop-gear box or gear case the towing machine aspect patent for example: 1, China Patent No.: 200410062097.5, " elevator traction machine ", its feature is to be embedded by the retarder that gear box casing constitutes to be built in the electric machine stand.2, China Patent No.: 02109278.8, " towing machine ", its feature is that speed reduction gearing is in rope sheave.Above-mentioned patent, though relate to gear case and speed reduction gearing, all inequality with structure of the present invention and effect.
Summary of the invention
The objective of the invention is for overcoming the weak point that prior art exists, a kind of simple and compact for structure, transmission efficiency is high, cost is low, energy-saving effect is high cargo lift tractor is provided.
The object of the present invention is achieved like this: a kind of cargo lift tractor, comprise electrical motor and drop-gear box, electrical motor adopts permasyn morot as actuating device, drop-gear box adopts the high helical wheel transmission drop-gear box of transmission efficiency, an off-load flange is installed on the casing of the mouth of helical gear reduction gearbox output shaft, and off-load flange and drop-gear box are inter-connected via a bolt joint fixing; Off-load flange and traction sheave support by a bearing.The output shaft of drop-gear box is stretched out by the centre hole of off-load flange, can be connected by mutual key with traction sheave.Radial weight perpendicular to the host apparatus mouth is disperseed to be unloaded on the deceleration box.The host apparatus output shaft only plays the transfer torque effect, eliminates the gear mesh distortion that is produced by diametral load.The host apparatus drive motor adopts permasyn morot, and with providing bigger torque under the power, the power factor height of motor own greatly reduces watt loss, reaches energy-conservation purpose than asynchronous dynamo.
The present invention compared with prior art has following good effect:
1, the present invention is owing to adopted permasyn morot as the towing machine drive motor, and this motor is compared asynchronous motor and had power factor height, efficient height, has energy-conservation height, characteristics that efficient is high.
2, the present invention is owing to adopt helical wheel transmission drop-gear box, and this drop-gear box mechanical efficiency can be up to 95%, and tooling cost is also low, can make the drive motor power of same specification towing machine littler.
3, the present invention is owing to be equipped with the off-load flange between traction sheave and support, between off-load flange and traction sheave, pass through bearings, like this, load is delivered on the casing by traction sheave, reduction gearbox output shaft only is used to bear the towing machine moment of torsion, does not bear the load from radially, thereby gear wheel shaft can be out of shape, but gear case smooth operation, and the life-span of increase bearing pair.
Description of drawings
Fig. 1 is a front schematic view of the present invention;
Fig. 2 is the A-A section-drawing (amplification) of Fig. 1.
The specific embodiment
Number in the figure is represented: 1, off-load flange, 2, spindle nose end cap 2,3, output shaft, 4, bearing, 5, traction sheave, 6, bearing cap shim, 7, gear reduction box, 8, electrical motor.
Further describe technology contents of the present invention and embodiment below in conjunction with accompanying drawing.
Accompanying drawing 2 is the present invention's one most preferred embodiment, cargo lift tractor of the present invention, comprise electrical motor 8 and drop-gear box 7, wherein: drop-gear box 7 is the high helical wheel transmission drop-gear box of transmission efficiency, output shaft 3 wherein plays the transfer torque effect, be positioned on the casing of mouth of output shaft 3 an off-load flange 1 is installed, promptly off-load flange 1 is connected with gear reduction box 7; Off-load flange 1 and traction sheave 5 support by bearing 4, that is to say between traction sheave 5 and off-load flange 1 bearing 4 is arranged.
Described off-load flange 1 can interconnect admittedly by bolt mutually with drop-gear box 7, and off-load flange 1 and gear reduction box 7 can cooperatively interact by the mode that seam is set.At the center of off-load flange 1 is the through hole of a circle.
Output shaft 3 in the described drop-gear box 7 by off-load flange 1 centre hole/in stretch out in the air, can interconnect by key with traction sheave 5, key has connected the effect of transmission elevator torque.Can leave one or two keyway on output shaft 3 does not limit.And between output shaft 3 and off-load flange 1, certain clearance should be arranged.
Described cargo lift tractor is characterized in that: the outside of traction sheave 5 is connected spindle nose end cap 2 through bolt with output shaft 3.And bearing cap shim 6 is connected and fixed through bolt at the opposite side (inboard) of traction sheave 5.
Electrical motor 8 in the above-mentioned towing machine is a permasyn morot, and permasyn morot provides drop-gear box power.
According to above-described embodiment, the principle of work and the process of this cargo lift tractor are: after the energising, and the rotation of the input shaft of electrical motor 8, the output shaft 3 of driven gear drop-gear box 7 rotates, the traction sheave 5 that the torque of output shaft 3 outputs drives elevator rotates, and makes elevator realize promoting up and down.The vertical diametral load of elevator to bearing 4, is delivered to off-load flange 1 by traction sheave 5 again, is dispersed on gear reduction box 7 housings by off-load flange 1, thereby plays mild transfer torque, has avoided towing machine output shaft radial deformation effectively.Pass through bearings between off-load flange 1 and the traction sheave, its effect mainly plays a supportive role, to be distributed to from the radial pressure that traction sheave 5 bears on the housing of gear reduction box 7, such mode---load is delivered on the casing by traction sheave, reduction gearbox output shaft only is used to bear the towing machine moment of torsion, does not bear the load from radially, thereby gear wheel shaft can be out of shape, but gear case smooth operation, and the life-span of increase bearing pair.
Towing machine provided by the present invention is not only applicable to Cargo Lift, is applicable to the traction drive equipment of other elevators yet.

Claims (7)

1, a kind of cargo lift tractor, comprise electrical motor (8) and drop-gear box (7), it is characterized in that: drop-gear box (7) is a helical wheel transmission drop-gear box, wherein: output shaft (3) plays the transfer torque effect, be positioned on the casing of mouth of output shaft (3) an off-load flange (1) is installed, off-load flange (1) and traction sheave (5) are by bearing (4) support.
2, cargo lift tractor according to claim 1 is characterized in that: described off-load flange (1) can interconnect admittedly by bolt mutually with drop-gear box (7),
3, cargo lift tractor according to claim 1 is characterized in that: the center of described off-load flange (1) is a through hole.
4, cargo lift tractor according to claim 1 is characterized in that: the output shaft (3) of described drop-gear box (7) can interconnect by key with traction sheave (5) by stretching out in off-load flange (1) centre hole.
5, cargo lift tractor according to claim 1 is characterized in that: the outside of traction sheave (5) is connected spindle nose end cap (2) through bolt with output shaft (3).
6, cargo lift tractor according to claim 1 is characterized in that: the opposite side (inboard) of traction sheave (5) is connected and fixed bearing cap shim (6) through bolt.
7, cargo lift tractor according to claim 1 is characterized in that: described electrical motor (8) is a permasyn morot.
CN 200610155079 2006-12-07 2006-12-07 Drag for service elevator Pending CN101020551A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200610155079 CN101020551A (en) 2006-12-07 2006-12-07 Drag for service elevator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200610155079 CN101020551A (en) 2006-12-07 2006-12-07 Drag for service elevator

Publications (1)

Publication Number Publication Date
CN101020551A true CN101020551A (en) 2007-08-22

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 200610155079 Pending CN101020551A (en) 2006-12-07 2006-12-07 Drag for service elevator

Country Status (1)

Country Link
CN (1) CN101020551A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009036692A1 (en) * 2007-09-14 2009-03-26 Fangui Meng An unloading alternate current permanent-magnet synchronous dragging machine
CN101804937A (en) * 2010-04-16 2010-08-18 浙江西子富沃德电机有限公司 Cargo lift tractor
CN102107811A (en) * 2009-12-28 2011-06-29 上海永大吉亿电机有限公司 Tractor used on elevator or escalator
CN103663070A (en) * 2013-12-30 2014-03-26 中国恩菲工程技术有限公司 Friction type mine hoisting system

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009036692A1 (en) * 2007-09-14 2009-03-26 Fangui Meng An unloading alternate current permanent-magnet synchronous dragging machine
CN102107811A (en) * 2009-12-28 2011-06-29 上海永大吉亿电机有限公司 Tractor used on elevator or escalator
CN102107811B (en) * 2009-12-28 2015-09-16 上海永大吉亿电机有限公司 For the traction machine of elevator or Escalator
CN101804937A (en) * 2010-04-16 2010-08-18 浙江西子富沃德电机有限公司 Cargo lift tractor
CN101804937B (en) * 2010-04-16 2012-12-12 浙江西子富沃德电机有限公司 Cargo lift tractor
CN103663070A (en) * 2013-12-30 2014-03-26 中国恩菲工程技术有限公司 Friction type mine hoisting system

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Open date: 20070822