CN201817174U - Traction machine of goods elevator - Google Patents
Traction machine of goods elevator Download PDFInfo
- Publication number
- CN201817174U CN201817174U CN2010201603658U CN201020160365U CN201817174U CN 201817174 U CN201817174 U CN 201817174U CN 2010201603658 U CN2010201603658 U CN 2010201603658U CN 201020160365 U CN201020160365 U CN 201020160365U CN 201817174 U CN201817174 U CN 201817174U
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- synchronous motor
- drop
- gear box
- permagnetic synchronous
- output shaft
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- 238000007789 sealing Methods 0.000 claims description 2
- 230000004224 protection Effects 0.000 abstract description 5
- 238000012545 processing Methods 0.000 abstract description 2
- 239000003638 chemical reducing agent Substances 0.000 abstract 7
- 238000009434 installation Methods 0.000 abstract 1
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Abstract
The utility model relates to a traction machine of a goods elevator, which is also suitable for the traction machine of an elevator. The traction machine of the goods elevator comprises a motor and a reducer casing, a permanent magnet synchronous motor is adopted as a drive device for the motor, a planetary gear reducer casing with small teeth difference is adopted for the reducer casing, the output shaft of the reducer casing and a traction sheave are coaxially arranged, the input shaft of the reducer casing and the rotor of the permanent magnet synchronous motor are coaxially arranged, the outside end face of the permanent magnet synchronous motor is sequentially and fixedly provided with a stacking type brake and a coder, and the shell of the reducer casing, the shell of the permanent magnet synchronous motor and the base of the permanent magnet synchronous motor are cast into a whole; the output shaft and the input shaft inside the reducer casing are supported by a bearing fixed on the base of the permanent magnet synchronous motor; and the outside end of the permanent magnet synchronous motor can be additionally provided with a protective cover for protection. The traction machine of the goods elevator has the characteristics of high efficiency, compact structure, convenience in processing and installation and stability in operation, saves energy and cost and is a substitute of the prior art, and the entire traction machine has long service life.
Description
Technical field
The utility model relates to a kind of cargo lift tractor, and is applicable to elevator traction machine.
Background technology
Along with science and technology development and progress, the elevator drive technical field is also developing with rapid changepl. never-ending changes and improvementsly, and elevator parts is gradually to energy-saving and environmental protection, compact conformation and the development of stable performance aspect.At present, domestic and international Cargo Lift lifting driving arrangement---the towing machine that generally uses, general drop-gear box and the threephase asynchronous machine that adopts the worm and gear transmission, the shortcoming that this towing machine exists mainly contains: complex structure, processing parts are many, therefore big, the Heavy Weight of the volume of complete machine, productive costs height, machinery driving efficiency are low, and particularly the worm and gear type of drive in the drop-gear box exists that friction drag is big, driving efficiency is low; Even adopt the asynchronous dynamo transmission, exist the lower shortcoming of power factor equally, cause the significant wastage of electric power resource.
Along with country advocates technological advance and requirements of saving energy, traditional worm and gear type of drive is replaced by permanent-magnet synchnorous gearless dragging machine just gradually, and this is because permanent-magnet synchnorous gearless dragging machine has advantages such as high efficiency, high pulling torque.Usually the power factor of permanent-magnet synchnorous gearless dragging machine reaches more than 98%, and it can economize on electricity 20%～30% with respect to asynchronous dynamo.But because permanent-magnet synchnorous gearless dragging machine is not provided with drop-gear box, when needs increased towing machine and obtain to transmit than high pulling torque, common permanent-magnet synchnorous gearless dragging machine just can not satisfy, and also there is certain difficulty in design itself, and cost also can be very high.
Existing epicyclic gear transmission elevator traction machine, its gear ring needs detailed manufacture, the flank of tooth needs through grinding and nitrogen hardening, though contact ratio is than the towing machine height of Worm-gear type transmission, usually the complete machine mechanical efficiency can reach 95%, but the tooling cost height of this planetary wheel towing machine is approximately 2～4 times of worm and gear transmission towing machine, and this also is can not be by the biggest obstacle of widespread usage.
Having a kind of in addition is the helical wheel type of drive, and its drop-gear box volume is little, the transmission efficiency height, and tooling cost is low, and mechanical transfer efficient can reach more than 95%, but its gear wheel shaft has distortion slightly, can cause whole gear case to produce noise and vibration.
Domestic and international patent documentation by retrieval, the patent of the relevant towing machine aspect that planetary reduction box is installed are just like China Patent No.: 02109278.8, " towing machine ", its feature is: speed reduction gearing is placed on the inside of traction sheave, and is different with the present invention.China Patent No. and for example: 200410062097.5, " elevator traction machine ", its feature is: the retarder that is made of gear box casing embeds and is built in the electric machine stand, and is also different with the utility model.China Patent No.: 200810194867.X, " traction machine with permanent-magnetic electric machine drive gear ", its feature is to adopt the worm and gear drive technology.These patents, what have also is provided with the utility model partial component, but different with the utility model structure, and the effect that is produced is also different fully.
Summary of the invention
The purpose of this utility model is for overcoming the weak point that prior art exists, a kind of cargo lift tractor is provided, be equally applicable to elevator traction machine, it is by utilizing the combination of novel small teeth number difference planet gear drop-gear box and permagnetic synchronous motor, realize the raising of towing machine performance, that product has is simple and compact for structure, driving efficiency is high, energy-conservation, cost is low, widely applicable advantage.
The purpose of this utility model is achieved in that a kind of cargo lift tractor, comprise traction sheave 1, permagnetic synchronous motor 5 and drop-gear box 3, described drop-gear box 3 is a small teeth number difference planet gear transmission drop-gear box, the reduction gearbox output shaft 12 and the described traction sheave 1 same axle mounting of described drop-gear box 3, the drop-gear box input shaft 11 of described drop-gear box 3 and the rotor 13 same axle mountings of described permagnetic synchronous motor 5, the outside end face of described permagnetic synchronous motor 5 is non-drop-gear box side, be fixed with folding brake 2 and coder 7 in regular turn, the shell of the shell of described drop-gear box 3 and described permagnetic synchronous motor 5 and described permagnetic synchronous motor pedestal are cast as an integral body, are called housing 4; Described reduction gearbox output shaft 12 and drop-gear box input shaft 11 are by the bearings that is fixed on the described permagnetic synchronous motor pedestal; External side end at described permagnetic synchronous motor 5 adds a protective cover 8.Motor adopts permagnetic synchronous motor as actuating device, and drop-gear box adopts current transmission efficiency up to the small teeth number difference planet gear drop-gear box more than 95%; The output shaft of described drop-gear box and the same axle mounting of described traction sheave, the input shaft of drop-gear box and the rotor coaxial of described permagnetic synchronous motor are installed; The outside end face of described permagnetic synchronous motor is for non-drop-gear box side is fixed with folding brake and coder in regular turn; The shell of drop-gear box and the shell of permagnetic synchronous motor and permagnetic synchronous motor pedestal are cast as an integral body, are called housing; Output shaft in the drop-gear box and input shaft are by the bearings that is fixed on the described permagnetic synchronous motor pedestal; External side end at permagnetic synchronous motor can add a protection protective cover.
The utility model compared with prior art has following good effect:
The cargo lift tractor that the utility model provides is applicable to elevator traction machine simultaneously, owing to adopt the drive motor of permagnetic synchronous motor as towing machine, has power factor height, characteristics that efficient is high than asynchronous dynamo; Owing to adopted novel small teeth number difference planet gear drop-gear box, this drop-gear box efficient can reach more than 95%, and compact conformation, easy to process, do not need to heat-treat, under equal transmitting ratio situation, the moment of torsion of transmission is big, and towing machine can use the lower drive motor of power under the therefore equal specification.The utility model is cast into an integral body with motor housing, drop-gear box shell and motor base, makes easier for installationly, guarantees right alignment, running steadily, the complete machine long service life, save cost.In a word, the cargo lift tractor that provides of the utility model is the substitute of prior art.
Description of drawings
Fig. 1 is a structure cross-sectional schematic of the present utility model;
Fig. 2 is an exploded perspective view of the present utility model.
Indicate among the figure: 1, traction sheave, 2, folding brake, 3, drop-gear box, 4, housing, 5, permagnetic synchronous motor, 6, coder support, 7, coder, 8, protective cover, 9, stator, 10, circlip, 11, the drop-gear box input shaft, 12, reduction gearbox output shaft, 13, rotor.
The specific embodiment
Accompanying drawing 1,2 is a most preferred embodiment of the present utility model.
Further describe technology contents of the present utility model and embodiment below in conjunction with accompanying drawing.
The cargo lift tractor that the utility model provides, comprise traction sheave 1, permagnetic synchronous motor 5 and drop-gear box 3, described drop-gear box 3 is a small teeth number difference planet gear transmission drop-gear box, small teeth number difference planet gear transmission drop-gear box has the efficient height, the big characteristics of moment of torsion, input shaft wherein plays the transfer torque effect, described reduction gearbox output shaft 12 and described traction sheave 1 same axle mounting, the rotor 13 same axle mountings of described drop-gear box input shaft 11 and described permagnetic synchronous motor 5, the outside end face of described permagnetic synchronous motor 5 is non-drop-gear box side, be fixed with folding brake 2 and coder 7 in regular turn, described coder 7 is fixed up by coder support 6, the shell of the shell of described drop-gear box 3 and described permagnetic synchronous motor 5 and described permagnetic synchronous motor pedestal are cast as an integral body, are called housing 4; Described reduction gearbox output shaft 12 and drop-gear box input shaft 11 are by the bearings that is fixed on the described permagnetic synchronous motor pedestal; External side end at described permagnetic synchronous motor 5 can add 8 protections of a protective cover.Described traction sheave 1 and reduction gearbox output shaft 12 are connected by key, and the axle head of described reduction gearbox output shaft 12 is connected and fixed by tightening screw and traction sheave 1, and output shaft 12 plays the transfer torque effect.Centre at described reduction gearbox output shaft 12 is supported by a bearing, in the end cap of this bearing sealing arrangement is housed, and bearing is placed on the pedestal of described permagnetic synchronous motor 5.Described drop-gear box input shaft 11 and described rotor 13 are connected by key, carry out axial restraint by 10 pairs of described rotors 13 of described circlip.The rotor 9 of described permagnetic synchronous motor 5 is interference fit together with the outer wall of described drop-gear box 3.The outer face that described folding brake 2 is arranged in permagnetic synchronous motor 5 is fixed by tightening screw.Described drop-gear box input shaft 11 adopts key directly to be connected with described rotor 13.The outer face of described permagnetic synchronous motor 5 is installed coder support 6 and coder.The outer face of described permagnetic synchronous motor 5 is equipped with protective cover, plays protective action, the elongated component life-span.
Accompanying drawing 2 is exploded perspective views of the utility model most preferred embodiment, can clearly be seen that the layout and the sequence of erection of cargo lift tractor of the present invention by accompanying drawing 2.Described traction sheave 1 can interconnect solid by bolt with drop-gear box 3 output shafts mutually, and by key reinforcement connection, that is, the outside of traction sheave 1 is connected the spindle nose end cap through bolt with output shaft, and output shaft and traction opinion is connected and fixed by key at the opposite side (inboard) of traction sheave 1.Permagnetic synchronous motor 5 provides drop-gear box power.
According to the foregoing description, the principle of work and the transformation process of this cargo lift tractor are: after the energising, rotor 13 rotations of permagnetic synchronous motor 5 drive drop-gear box input shaft 11 and rotate, thereby driving reduction gearbox output shaft 12 rotates, the traction sheave 1 that the torque of reduction gearbox output shaft 12 outputs drives elevator rotates, and makes elevator realize promoting up and down.The utility model is because reduction gearbox output shaft 12 direct connection traction sheaves 1, the rotor 13 of drop-gear box input shaft 11 direct connection permagnetic synchronous motors 5, do not use coupler or other modes to connect, reduced effectively owing to noise and the vibration of using connecting device to produce, made transmission very steady.The housing of drop-gear box and the shell cast of motor are an integral body, make Assembly ﹠Disassembly convenient, reduce maintenance cost.
The utility model only is described in detail with regard to a most preferred embodiment of the present utility model; but can not be interpreted as the restriction of other modes that the utility model is implemented; everyly further improve and similar or identical scheme on the utility model basis, all being considered as is the scope that the utility model is asked for protection.
Claims (5)
1. cargo lift tractor, comprise traction sheave (1), permagnetic synchronous motor (5) and drop-gear box (3), it is characterized in that: described drop-gear box (3) is a small teeth number difference planet gear transmission drop-gear box, the reduction gearbox output shaft (12) of described drop-gear box (3) and the same axle mounting of described traction sheave (1), the same axle mounting of rotor (13) of the drop-gear box input shaft (11) of described drop-gear box (3) and described permagnetic synchronous motor (5), the outside end face of described permagnetic synchronous motor (5) is non-drop-gear box side, be fixed with folding brake (2) and coder (7) in regular turn, the shell of the shell of described drop-gear box (3) and described permagnetic synchronous motor (5) and described permagnetic synchronous motor pedestal are cast as an integral body, are called housing (4); Described reduction gearbox output shaft (12) and drop-gear box input shaft (11) are by the bearings that is fixed on the described permagnetic synchronous motor pedestal; External side end at described permagnetic synchronous motor (5) adds a protective cover (8).
2. cargo lift tractor according to claim 1 is characterized in that: described traction sheave (1) is connected by key with described reduction gearbox output shaft (12), and the axle head of described reduction gearbox output shaft (12) is connected and fixed by tightening screw and traction sheave (1).
3. cargo lift tractor according to claim 1 is characterized in that: the centre at described deceleration output shaft (12) is supported by a bearing, in the end cap of this bearing sealing arrangement is housed, and bearing is placed on the pedestal of described permagnetic synchronous motor (5).
4. cargo lift tractor according to claim 1 is characterized in that: described drop-gear box input shaft (11) is connected by key with described rotor (13), by circlip (10) rotor (13) of motor is carried out axial restraint; Described rotor (9) is interference fit together with the outer wall of drop-gear box (3).
5. cargo lift tractor according to claim 1 is characterized in that: described folding brake (2) is arranged in the outer face of permagnetic synchronous motor (5) and fixes by tightening screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201603658U CN201817174U (en) | 2010-04-16 | 2010-04-16 | Traction machine of goods elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201603658U CN201817174U (en) | 2010-04-16 | 2010-04-16 | Traction machine of goods elevator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201817174U true CN201817174U (en) | 2011-05-04 |
Family
ID=43915137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201603658U Expired - Lifetime CN201817174U (en) | 2010-04-16 | 2010-04-16 | Traction machine of goods elevator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201817174U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101804937A (en) * | 2010-04-16 | 2010-08-18 | 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 |
-
2010
- 2010-04-16 CN CN2010201603658U patent/CN201817174U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101804937A (en) * | 2010-04-16 | 2010-08-18 | 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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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110504 Effective date of abandoning: 20130306 |
|
| RGAV | Abandon patent right to avoid regrant |