CN201136727Y - Small-sized permanent magnet synchronous gearless traction machine - Google Patents
Small-sized permanent magnet synchronous gearless traction machine Download PDFInfo
- Publication number
- CN201136727Y CN201136727Y CNU2007200418785U CN200720041878U CN201136727Y CN 201136727 Y CN201136727 Y CN 201136727Y CN U2007200418785 U CNU2007200418785 U CN U2007200418785U CN 200720041878 U CN200720041878 U CN 200720041878U CN 201136727 Y CN201136727 Y CN 201136727Y
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- coder
- main shaft
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Abstract
The utility model relates to a small-sized permanent magnet synchronous gearless machine which belongs to the technical field of a lifting facility. The gearless machine comprises a stand, an arrester, a coder, a towing wheel, a main shaft and a permanent magnet synchronous machine, wherein, the left and the right of the stand are provided with a pair of a first and a second bearing supports which have a first and a second mounting holes at the centers; the towing wheel is arranged in the stand and sleeved and fixed on the main shaft which is supported on the first and the second bearing supports through a first and a second bearings; the permanent magnet synchronous machine is an inner rotor permanent magnet synchronous machine and is fixed at the outer side of one end of the stand; the arrester is a disc brake and is fixed at the outer side of the other end of the stand; the coder is fixed on the arrester and is connected with the main shaft through the rotating shaft of the coder. The small-sized permanent magnet synchronous gearless machine has the advantages that the running stationarity of the main shaft can be improved, the noise can be lowered and the service life can be prolonged; the safety performance for using the whole machine can be improved, and the sizes of the bearings can be effectively reduced; the volume is small, the thickness is thin, the carrying ability is large, and the installation and the maintenance are convenient; a rope off pole used on the traditional gearless machine can be left out.
Description
Technical field
The utility model relates to the used elevator traction machine of a kind of elevator drive system, and particularly a kind of minitype permanent magnetism synchronization gear wheel free traction machine that is applicable to that no machine room and small room elevator traction drive belongs to the lift installation technical field.
Background technology
Existing elevator adopts no machine room to install with effective minimizing floor area under many situations, and the top that towing machine is installed in the hoistway is present best solution.But because original old stair shaft road head room is limited, comparatively harsh to the dimensional characteristic of towing machine when transforming, it not only requires the volume of towing machine as far as possible little, and has living space in order not influence the former of counterweight and car, also requires thin as far as possible on gauge.Most of in the market permanent-magnet synchnorous gearless dragging machines are difficult to satisfy above-mentioned requirements on oad.
China utility model Granted publication CN200943027Y, a kind of " minitype permanent magnetism synchronization gear wheel free traction machine " disclosed, it is traction sheave to be integral with axle be cast into the umbrella shape member, be connected and fixed the whole processing in back with rotor again, have compact conformation, volume is little, load-carrying is big relatively advantage, but the problem that exists is: at first, this towing machine is supported for cantilevered single head supporting construction to traction sheave, thereby when traction sheave drives elevator work, because discontinuity equalization, be easy to generate vibration, make work not steady, and noise be big; Secondly, adopt the umbrella member, the processing technology complexity; Again, jump out traction sheave in order to prevent hoist ropes, adopted employed retaining rope bar on traditional towing machine, not only parts are many, complex structure, and increased the difficulty of assembling.
Again, Chinese invention patent publication number CN1990376A, a kind of " built-in type double-support permanent-magnet gearless elevator traction machine " disclosed, it is the support of original traction sheave to be supported by the cantilevered single head change the double end support into, make that the tumbler (Transmission) of towing machine is all built-in, and all the support of tumbler is two-way support (double end support), solved the problem of traction sheave and rotor brake control lever discontinuity equalization when work, thereby alleviate vibration, improve working stability and prolong work life, but one of deficiency that exists, to all be arranged in the casing by permagnetic synchronous motor and the traction sheave that stator and rotor assembly constitute, complex structure has increased the operation easier of installing and keeping in repair; Two, owing to comprised whole tumblers in the middle of the double bracing, the span that causes between the double bracing is bigger than normal, and on the main shaft main load-bearing interval at the traction sheave place, other interval relatively a little less than, exist therefore that main shaft discontinuity equalization, amount of deflection are big, the problem of carrying difference.In addition, the permagnetic synchronous motor that this towing machine adopts is an outer-rotor structure, and promptly rotor is set in the stator outside, and traction sheave is directly installed on the rotor.
Again, Chinese invention patent Granted publication CN1304267C, a kind of " bikini permanent magnetism gearless machine group " disclosed, it is to be provided with two concavo-convex cambered surface contacts that are used to support with the adjustment towing machine is installed to be connected base in the permagnetic synchronous motor bottom, the traction sheave rotating shaft is provided with a pillar stiffener away from an end of motor, and traction sheave is installed by the overlength rotating shaft and striden frame between the machine shaft and pillar stiffener of towing machine.The defective that this structure exists is: because base and hold-down arm are split productions, therefore in order to guarantee the concentricity of overlength rotating shaft at the fulcrum place, need when mounted respectively the setting height(from bottom) of base and hold-down arm to be adjusted, not only increased mounting hardness, and can't guarantee setting accuracy.
Summary of the invention
The purpose of this utility model be to provide that a kind of volume is little, thin thickness, supporting power are big, good operating stability, noise are little, long service life, be easy for installation and maintenance and motor is the minitype permanent magnetism synchronization gear wheel free traction machine of internal rotor permanent-magnetic synchronous dynamo.
The purpose of this utility model reaches like this, a kind of minitype permanent magnetism synchronization gear wheel free traction machine, it comprises support, drg, coder, traction sheave, main shaft and permagnetic synchronous motor, is characterized in: the left and right sides of described support is provided with a pair of center first, second bearing seat of first, second mounting hole of tool respectively; Described traction sheave places in the support and is fixed on the main shaft, and main shaft is supported on a pair of first, second bearing seat by first, second bearing; The same axle mounting of described permagnetic synchronous motor and traction sheave, it be by be fixed on rotor on the main shaft, be set in the outer stator of rotor, place stator outer and with stator stationary sleeve and cap seal the internal rotor permanent-magnetic synchronous dynamo that cover constituted in sleeve rear end portion, sleeve is fixed on the outside of support one end; Described drg is a plate disc brake, is fixed on the outside of the support other end, with the same axle mounting of traction sheave; Described coder is fixed on the drg, and coder is connected with main shaft by the coder S. A..
The utility model is formed with a pair of spike respectively in the both sides of described support bottom.
Spike described in the utility model and support integral production form.
The center of first, second mounting hole described in the utility model is positioned on the same axial line vertical.
Traction sheave described in the utility model is positioned at the midway location place of a pair of first, second bearing seat.
Fix with holding screw behind stator described in the utility model and the sleeve close-fitting, pass through bolted connection between sleeve and the support.
Main shaft described in the utility model is equipped with third axle at the axle head near permagnetic synchronous motor one side and holds, and third axle holds and is supported on the cover.
Coder described in the utility model is outside equipped with the coder cover that mat plays protective action, and coder is fixed on the body of drg by the coder cover.
After the utility model adopts said structure, one of advantage that has, since a pair of first, second bearing seat be machined on the support integratedly, do not need to adjust the setting height(from bottom) of first, second mounting hole when mounted, just can guarantee the concentricity of main shaft, thereby can improve the main shaft traveling comfort, reduce noise and prolong work life at two strong points; Two, traction sheave is positioned at the centre of a pair of first, second bearing seat, makes machine stress even, can improve the safety performance that complete machine uses, and can effectively reduce the model of bearing again; Three, owing to permagnetic synchronous motor and drg, coder are arranged on side by side the outside of support respectively, and traction sheave only is set in support, not only volume is little, thin thickness, load carrying ability are big, can adapt to the transformation to old hydraulic pressure ladder, and be easy for installation and maintenance; Four, the volume of traction sheave is very little, and after support adopts the integrative-structure of double bracing, self possesses the anti-jump function of steel rope or steel band, can save employed retaining rope bar on traditional towing machine.
Description of drawings
Fig. 1 is an embodiment planar structure scheme drawing of the present utility model.
Fig. 2 is the spatial structure sketch of Fig. 1.
Among the figure: 1. drg, 2. coder, 3. clutch shaft bearing, 4. support, 5. traction sheave, 6. second bearing, 7. stator, 8. rotor, 9. third axle hold, 10. cover, 11. sleeves, 12. main shafts, 13. second bearing seats, 14. primary shaft bearings, 15. spikes, 16. coder S. A.s, 17. coder covers, 18. first mounting holes, 19. second mounting holes.
The specific embodiment
For the inspector and the public who makes Patent Office can further understand technical spirit of the present utility model and beneficial effect, the applicant is described below with the concrete but embodiment of nonuniqueness:
See also Fig. 1 and in conjunction with Fig. 2, the permagnetic synchronous motor that the utility model provides is an internal rotor permanent-magnetic synchronous dynamo structure, it mainly comprises rotor 8, stator 7, sleeve 11, cover 10, rotor 8 is fixed on the main shaft 12, stator 7 is set in outside the rotor 8, and be formed with air gap between the outside face of assurance rotor 8 and the inside face of stator 7, sleeve 11 is set in outside the stator 7, both fix with holding screw behind close-fitting, sleeve 11 is by being bolted to the outside of support 4 right-hand members, away from an end end cap seal of support 4 cover 10 is arranged at sleeve 11, cover 10 internal supports have a third axle to hold 9, and third axle holds the 9 right side axle heads that are installed in main shaft 12.Support 4 described in the utility model is dual-support structure (as shown in the figure), specifically is that the two bottom sides at described support 4 bodies has extended a pair of spike 15 respectively integratedly, plays a supportive role by the traction sheaves 5 in 15 pairs of supports 4 of a pair of spike and the support 4.Formed a pair of first, second bearing seat 14,13 at the nearly medium position place of the described support 4 body left and right sides, offer first, second mounting hole 18,19 respectively at the center of a pair of first, second bearing seat 14,13, the center of first, second mounting hole 18,19 is positioned on the same axial line vertical, to guarantee the concentricity of main shaft 12 at two strong points.Traction sheave 5 described in the utility model places the centre of support 4 and is fixed on the main shaft 12, a pair of first, second bearing 3,6 is separately positioned in first, second mounting hole 18,19 and is installed on the main shaft 12, and traction sheave 5 is positioned at the midway location place of a pair of first, second bearing seat 14,13.Drg 1 described in the utility model is the known plate disc brake of industry, and its structure belongs to prior art, therefore no longer superfluous here reaching.When mounted, drg 1 is by being bolted to the outside of support 4 left ends, and be between support 4, the permagnetic synchronous motor and be set up in parallel, the left side axle head of main shaft 12 extends in the drg 1 and runs through the central shaft hole of drg 1, is same axle mounting with traction sheave 5 promptly.Coder 2 described in the utility model is outside equipped with the coder cover 17 that shields, and coder 2 is fixed on the drg 1 by coder cover 17, and the coder S. A. 16 in the middle of the coder is connected with main shaft 12.
The applicant sketches principle of work of the present utility model in conjunction with Fig. 1 and Fig. 2.Permagnetic synchronous motor mainly is to produce power torque, the inside face of the stator 7 in sleeve 11 and the outer round surface of rotor 8 form even air gap, when in stator 7 coils during indirect current, partly form alternating magnetic field at air gap, the magnetic field interaction that this alternating magnetic field and permanent magnet pole produce, the principle of inhaling mutually according to different magnetic poles produces magnetic pole and catches up with, and the magnetic pole of permanent magnet catches up with the alternating magnetic field magnetic pole of stator 7, and rotor 8 produces moment of rotation.The moment of rotation that rotor 8 produces is delivered on the traction sheave 5 by main shaft 12, make traction sheave 5 rotations, and grooving face on steel band or the steel rope dependence traction sheave 2 and the friction force between the steel rope drags the car upstream or downstream.
Brake system: when cage operation to level position certain apart from the time, speed begins to reduce, during basic flat bed, speed is about zero-speed, the brake system outage, the electromagnetic force of electromagnet disappears, two friction disc spring-loadeds of plate disc brake 1, produce lock torque, this lock torque is delivered to main shaft 12, passes to traction sheave 5 by main shaft 12 then, and traction sheave 5 is stopped operating, friction force between traction sheave 5 and steel band or the steel rope makes that the steel band or the steel rope of traction car are out of service, and car stops at the level position of setting.When needs move, the electromagnet energising in the drg 1, moving iron core is under the static iron core suction, and relative motion overcomes spring force and makes friction disc lose friction force, rotates with main shaft 12, and towing machine begins to drive cage operation.
The utility model is owing to after adopting said structure, make the compact conformation of complete machine, and size is little.Its thickness is 280mm, and width is 649mm, is 290mm highly, and nominal payload reaches 630kg.Be particularly suitable for European countries old hydraulic pressure ladder is transformed, be used to be installed in the top in the hoistway.
Claims (8)
1, a kind of minitype permanent magnetism synchronization gear wheel free traction machine, it comprises support (4), drg (1), coder (2), traction sheave (5), main shaft (12) and permagnetic synchronous motor, it is characterized in that the left and right sides of described support (4) is provided with a pair of center first, second bearing seat (14,13) of first, second mounting hole of tool (18,19) respectively; Described traction sheave (5) places in the support (4) and is fixed on the main shaft (12), and main shaft (12) is supported on a pair of first, second bearing seat (14,13) by first, second bearing (3,6); The same axle mounting of described permagnetic synchronous motor and traction sheave (5), it is by being fixed on rotor (8) on the main shaft (12), being set in the outer stator (7) of rotor (8), placing stator (7) internal rotor permanent-magnetic synchronous dynamo outer and that constituted at the cover (10) of sleeve (11) rearward end with stator (7) stationary sleeve (11) and cap seal, and sleeve (11) is fixed on the outside of support (4) one ends; Described drg (1) is a plate disc brake, is fixed on the outside of support (4) other end, with the same axle mounting of traction sheave (5); Described coder (2) is fixed on the drg (1), and coder (2) is connected with main shaft (12) by coder S. A. (16).
2, minitype permanent magnetism synchronization gear wheel free traction machine according to claim 1 is characterized in that being formed with a pair of spike (15) respectively in the both sides of described support (4) bottom.
3, minitype permanent magnetism synchronization gear wheel free traction machine according to claim 2 is characterized in that described spike (15) and support (4) integral production form.
4, minitype permanent magnetism synchronization gear wheel free traction machine according to claim 1 is characterized in that the center of described first, second mounting hole (18,19) is positioned on the same axial line vertical.
5, minitype permanent magnetism synchronization gear wheel free traction machine according to claim 1 is characterized in that described traction sheave (5) is positioned at the midway location place of a pair of first, second bearing seat (14,13).
6, minitype permanent magnetism synchronization gear wheel free traction machine according to claim 1 is characterized in that fixing with holding screw behind described stator (7) and sleeve (11) close-fitting, passes through bolted connection between sleeve (11) and the support (4).
7, minitype permanent magnetism synchronization gear wheel free traction machine according to claim 1 is characterized in that described main shaft (12) is equipped with third axle at the axle head near permagnetic synchronous motor one side and holds (9), and third axle holds (9) and is supported on the cover (10).
8, minitype permanent magnetism synchronization gear wheel free traction machine according to claim 1, it is characterized in that described coder (2) is outside equipped with the coder cover (17) that mat plays protective action, coder (2) is fixed on the body of drg (1) by coder cover (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200418785U CN201136727Y (en) | 2007-11-20 | 2007-11-20 | Small-sized permanent magnet synchronous gearless traction machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200418785U CN201136727Y (en) | 2007-11-20 | 2007-11-20 | Small-sized permanent magnet synchronous gearless traction machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201136727Y true CN201136727Y (en) | 2008-10-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200418785U Expired - Fee Related CN201136727Y (en) | 2007-11-20 | 2007-11-20 | Small-sized permanent magnet synchronous gearless traction machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201136727Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102377258A (en) * | 2010-08-25 | 2012-03-14 | 蒂森克虏伯电梯（上海）有限公司 | Stator for motor, motor, tractor, and method for manufacturing stator |
| CN102502380A (en) * | 2011-09-30 | 2012-06-20 | 佛山市合普电梯部件有限公司 | Permanent magnet synchronous gearless driving machine with freely supported structure |
| CN102667009A (en) * | 2009-12-21 | 2012-09-12 | 凯文·R·威廉姆斯 | Permanent magnet direct drive drawworks |
| CN104393716A (en) * | 2014-12-08 | 2015-03-04 | 北京京仪敬业电工科技有限公司 | Alternating current servo motor assembly process with brake |
| WO2017040136A1 (en) * | 2015-08-31 | 2017-03-09 | Otis Elevator Company | Optical encoder and motor assembly |
-
2007
- 2007-11-20 CN CNU2007200418785U patent/CN201136727Y/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102667009A (en) * | 2009-12-21 | 2012-09-12 | 凯文·R·威廉姆斯 | Permanent magnet direct drive drawworks |
| CN102377258A (en) * | 2010-08-25 | 2012-03-14 | 蒂森克虏伯电梯（上海）有限公司 | Stator for motor, motor, tractor, and method for manufacturing stator |
| CN102377258B (en) * | 2010-08-25 | 2016-08-17 | 蒂森克虏伯电梯（上海）有限公司 | The stator of motor, motor, traction machine and the method being used for manufacturing stator |
| CN102502380A (en) * | 2011-09-30 | 2012-06-20 | 佛山市合普电梯部件有限公司 | Permanent magnet synchronous gearless driving machine with freely supported structure |
| CN104393716A (en) * | 2014-12-08 | 2015-03-04 | 北京京仪敬业电工科技有限公司 | Alternating current servo motor assembly process with brake |
| CN104393716B (en) * | 2014-12-08 | 2016-10-05 | 北京京仪敬业电工科技有限公司 | A kind of AC servo motor assembly technology with brake |
| WO2017040136A1 (en) * | 2015-08-31 | 2017-03-09 | Otis Elevator Company | Optical encoder and motor assembly |
| CN108025882A (en) * | 2015-08-31 | 2018-05-11 | 奥的斯电梯公司 | Optical encoder and electric motor assembly |
| US10396635B2 (en) | 2015-08-31 | 2019-08-27 | Otis Elevator Company | Reflective optical encoder with contaminant protection |
| CN108025882B (en) * | 2015-08-31 | 2020-01-03 | 奥的斯电梯公司 | Optical encoder and motor assembly |
| EP3828510A1 (en) * | 2015-08-31 | 2021-06-02 | Otis Elevator Company | Optical encoder and motor assembly |
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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: 20081022 Termination date: 20151120 |
|
| EXPY | Termination of patent right or utility model |