CN202829230U - Small variable frequency speed-controlling traction machine - Google Patents
Small variable frequency speed-controlling traction machine Download PDFInfo
- Publication number
- CN202829230U CN202829230U CN 201220308472 CN201220308472U CN202829230U CN 202829230 U CN202829230 U CN 202829230U CN 201220308472 CN201220308472 CN 201220308472 CN 201220308472 U CN201220308472 U CN 201220308472U CN 202829230 U CN202829230 U CN 202829230U
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- end cover
- electrical motor
- motor
- frequency speed
- towing machine
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Abstract
A small variable frequency speed-controlling traction machine comprises an alternative current asynchronous motor, a traction wheel, a brake and a rotary encoder, wherein installation bottom feet are respectively arranged on the lower portion of a front end cover and the lower portion of a rear end cover, the front end cover and the rear end cover are connected with a stator outer sleeve, a motor shaft extends out of the front end cover and the rear end cover, one end of the motor shaft is provided with the traction wheel, and the other end of the motor shaft is provided with the disk-type brake. The traction machine operates through power supplied by a converter, works under low-frequency and low-rotating-speed conditions, and has the advantages of being simple in structure, low in manufacture cost, and suitable for home elevators.
Description
Technical field
The utility model relates to a kind of elevator machine product, and more particularly, the utility model relates to a kind of small-sized variable-frequency speed governing towing machine that uses in home lift.
Background technology
Be accompanied by the development of national economy, the home lift industry promotes rapidly, and the more and more of home lift are installed in villa buildings and town and country private residence.Country has put into effect GB/T 21793-2008 " home lift manufacturing and installation specification " and has been instructed.
Traction elevator is the main product of home lift, the towing machine power plant that is absolutely necessary.The commercially available prod mainly is permanent-magnet synchnorous gearless dragging machine, such as the ER-VM towing machine of Jiangsu Tong Run company, the WYT-TAM towing machine of Shenyang blue light company, Φ 265 towing machines of Ningbo XinDa company, the MONA200 towing machine of Shanghai Meng Tenali company, have the advantages such as volume is little, lightweight, the operation noise is low, be widely applied.Along with the in the recent period rise in price of rare earth material both at home and abroad, the cost of raw material of this series products is unprecedented soaring, and selling price is more and more higher.
In home lift, use the product of the gearless machine of AC asynchronous motor driving to have no report.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of and can satisfy the home lift operating needs, and the lower small-sized variable-frequency speed governing towing machine of productive costs.
The utility model is achieved by following technical proposals: small-sized variable-frequency speed governing towing machine comprises electrical motor, traction sheave, drg and rotary encoder, it is characterized in that, described electrical motor is AC asynchronous motor, outside the stator of electrical motor, put without footing is installed, footing is installed is separately positioned on the front end cover that is connected with the stator overcoat and the bottom of rear side housing; The rotor of electrical motor is the cage rotor structure, by motor shaft be installed in roller bearings in the forward and backward end cap at the center of stator; Motor shaft stretches out respectively front end cover and rear side housing, and an end is installed traction sheave, and the other end is installed plate disc brake.
Described AC asynchronous motor is the squirrel-cage three phase asynchronous motor of 8 utmost points or 6 utmost points, by the inverter supply operation, is operated in low frequency slow speed of revolution operating mode.
The stator coil of described electrical motor adopts double-layer fractional slot formula winding.
Described electrical motor adopts cold-rolled silicon iron as permeability magnetic material, and insulation system and electromagnetic wire adopt the F level.
The utility model advantage compared with prior art is:
(1) adopt the AC asynchronous motor of the cage rotor structure of widespread use, manufacturing process is ripe, and quality is secure.
(2) can select universal frequency converter or integrated elevator controller to drive, matching is good.
(3) towing machine is simple for structure, and member is less, failure rate is low; Productive costs than permanent magnetic synchronous traction machine significantly lowers.
(4) product meets the technical requirements of GB/T 21793-2008 " home lift manufacturing and installation specification ".
Description of drawings
Fig. 1 is an example structure sketch of the present utility model.
Among the figure: 1. connecting key, 2. traction sheave, 3. front end cover, 4. motor shaft, 5. rotor, 6. stator, 7. stator overcoat, 8. stator coil, 9. rear side housing, 10. plate disc brake, 11. antifriction-bearing boxs, 12. install footing, 13. rotary encoders.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is further described:
Embodiment shown in Figure 1, the towing machine technical parameter is: rated load 400kg, command speed 0.4m/s. traction ratio 2: 1, traction sheave saves through 200mm, grooving Φ 8mm * 3.Because the installation footing of towing machine is arranged on front and rear cover, traction sheave adopts cantilever design, has shortened traction sheave and the distance that supports footing, and the force-bearing situation of motor shaft is better.Select DSZ-200MT plate disc brake, ZK-63 rotary encoder.For alleviating deadweight, stator overcoat 7 is aluminium.
The high 160mm in electrical motor center among Fig. 1 manufactures and designs by 8 utmost point squirrel-cage induction motors, by inverter supply operation, electrical motor 72r/min during command speed, the about 5Hz of frequency of operation, power 0.8kW, torque 100Nm.Stator coil adopts double-layer fractional slot formula winding, makes magnetic field near sinusoidal waveform, reduces loss, raises the efficiency.Electrical motor adopts the 50WW800 cold rolled silicon steel as permeability magnetic material.
Because electrical motor adopts inverter supply, contains more high order harmonic in the received current, its insulation system bears higher dielectric strength during than mains supply.Therefore, the insulation system of this electrical motor and electromagnetic wire adopt the F level.
Below with embodiment the utility model has been carried out launching to describe by reference to the accompanying drawings, this description does not have restricted, and shown in the drawings is a kind of embodiment that the utility model instrument consists of also, and the technical solution of the utility model is not limited to this.Those of ordinary skill in the art should be understood that in the situation that does not break away from the utility model design philosophy, actual enforcement of the present utility model also has the variation on some details.So as long as meet the utility model aim, these variations include within protection domain of the present utility model.
Claims (4)
1. a small-sized variable-frequency speed governing towing machine comprises electrical motor, traction sheave, drg and rotary encoder, it is characterized in that, described electrical motor is AC asynchronous motor, and it is installed footing and is separately positioned on the front end cover that is connected with the stator overcoat and the bottom of rear side housing; The rotor of electrical motor is the cage rotor structure, by motor shaft be installed in roller bearings in the forward and backward end cap at the center of stator; Motor shaft stretches out the front and back ends lid, and an end is installed traction sheave, and the other end is installed plate disc brake.
2. small-sized variable-frequency speed governing towing machine according to claim 1 is characterized in that, described AC asynchronous motor is the squirrel-cage three phase asynchronous motor of 8 utmost points or 6 utmost points, by the inverter supply operation, is operated in low frequency slow speed of revolution operating mode.
3. small-sized variable-frequency speed governing towing machine according to claim 1 is characterized in that, the stator coil of described electrical motor adopts double-layer fractional slot formula winding.
4. small-sized variable-frequency speed governing towing machine according to claim 1 is characterized in that, it is permeability magnetic material that described electrical motor adopts cold-rolled silicon iron, and insulation system and electromagnetic wire adopt the F level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220308472 CN202829230U (en) | 2012-06-28 | 2012-06-28 | Small variable frequency speed-controlling traction machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220308472 CN202829230U (en) | 2012-06-28 | 2012-06-28 | Small variable frequency speed-controlling traction machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202829230U true CN202829230U (en) | 2013-03-27 |
Family
ID=47940987
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220308472 Expired - Fee Related CN202829230U (en) | 2012-06-28 | 2012-06-28 | Small variable frequency speed-controlling traction machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202829230U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103569835A (en) * | 2013-11-18 | 2014-02-12 | 沈阳工业大学 | External-arranged type drive traction machine of box type shell body structure |
| CN105408070A (en) * | 2013-06-19 | 2016-03-16 | 雄克有限公司 | Gripping or clamping device for gripping or clamping objects and method therefor |
| CN110562830A (en) * | 2019-10-16 | 2019-12-13 | 苏州台菱电梯有限公司 | AC asynchronous gearless speed changing traction machine |
-
2012
- 2012-06-28 CN CN 201220308472 patent/CN202829230U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105408070A (en) * | 2013-06-19 | 2016-03-16 | 雄克有限公司 | Gripping or clamping device for gripping or clamping objects and method therefor |
| CN103569835A (en) * | 2013-11-18 | 2014-02-12 | 沈阳工业大学 | External-arranged type drive traction machine of box type shell body structure |
| CN110562830A (en) * | 2019-10-16 | 2019-12-13 | 苏州台菱电梯有限公司 | AC asynchronous gearless speed changing traction machine |
| WO2021072902A1 (en) * | 2019-10-16 | 2021-04-22 | 苏州台菱电梯有限公司 | Alternating-current asynchronous gearless variable-speed traction machine and elevator system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130327 Termination date: 20150628 |
|
| EXPY | Termination of patent right or utility model |