CN203903743U - Cantilever type permanent magnet synchronous tractor - Google Patents
Cantilever type permanent magnet synchronous tractor Download PDFInfo
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- CN203903743U CN203903743U CN201420243707.0U CN201420243707U CN203903743U CN 203903743 U CN203903743 U CN 203903743U CN 201420243707 U CN201420243707 U CN 201420243707U CN 203903743 U CN203903743 U CN 203903743U
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- moving plate
- cantilevered
- rotating shaft
- permanent magnetic
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Abstract
The utility model discloses a cantilever type permanent magnet synchronous tractor, comprising a motor, a traction wheel and a brake, wherein the motor comprises a housing case and a rotating shaft penetrating through the housing case; a stator is arranged in the housing case; a rotor interacting with the stator is fixed to the rotating shaft; one end of the rotating shaft stretches out of the housing case and is fixed to the traction wheel; the brake is arranged on one side, with the back towards the traction wheel, of the housing case; the rotor comprises a magnet yoke fixed to the rotating shaft in an interference with a plat key manner, and permanent magnet steel sheets attached to the periphery of the magnet yoke; pressing plates are arranged between the adjacent permanent magnet steel sheets, and the pressing plates are fixed to the outer wall of the magnet yoke; bearing chambers are arranged on two opposite sides of the housing case, and one end, facing the brake, of each bearing chamber is also provided with a seal cover. The cantilever type permanent magnet synchronous tractor has made improvement on the structure of the tractor so as to be capable of being applied to a heavy load cantilever type permanent magnet synchronous tractor without a machine room.
Description
Technical field
The utility model relates to elevator technology field, is specifically related to a kind of cantilevered permanent magnetic synchronous traction machine.
Background technology
Through the fast development of more than ten years, domestic building construction technology reaches its maturity, and skyscraper continues to bring out, and the elevator technology being closely connected with skyscraper also develops rapidly.
The driving arrangement of elevator is large by the nineties volume, noise is large, inefficient geared machine, develop into energy-efficient permanent-magnet synchnorous gearless dragging machine now, elevator market is being developed the more than ten years unconsciously, along with national economy changes to intensive method, the competition in elevator market is also more fierce.
In city, the density of population is increasing now, and the degree of utilization of elevator is corresponding increase also, need to increase the maximum carrying number of elevator, reduces as far as possible material cost simultaneously.
Land market based on present an inch of land is an inch of gold, in building, the shared area of elevator is more few better, and therefore, the civil engineering mode of joint space-efficient machine-roomless lift, is more and more subject to the favor in market.
In prior art, the towing machine of heavy－duty generally adopts dual-support structure, be that traction sheave is placed between two supports, but such structure only can be for there being the main frame of machine room, the main frame of machine room generally uses the towing machine of cantilever design, and the traction sheave of cantilever design mostly is outer-rotor structure, the torque of outer-rotor structure is generally less.
Therefore, need to provide a kind of have cantilever design and the large elevator traction machine of torque.
Utility model content
The utility model provides a kind of cantilevered permanent magnetic synchronous traction machine, by the structure to towing machine, improves, and enables the heavy－duty elevator for machine room.
A kind of cantilevered permanent magnetic synchronous traction machine, comprise motor, traction sheave and drg, the rotating shaft that described motor comprises casing and runs through casing, in casing, be provided with stator, in rotating shaft, be fixed with the rotor acting on mutually with stator, one end of described rotating shaft is extended casing and is fixed with described traction sheave, and a described casing dorsad side of traction sheave is provided with described drg;
Described rotor comprises and adopts interference to add flat key mode and the fixing yoke of rotating shaft, and the permanent magnetism steel disc that is mounted on yoke periphery, between adjacent permanent magnetism steel disc, is provided with pressing plate, and this pressing plate is bolted on the outer wall of yoke;
The relative both sides of described casing are respectively equipped with bearing chamber, are provided with for the bearing of described rotating shaft is installed in bearing chamber, and wherein the bearing chamber near drg one side is double sealed bearing, and this bearing chamber is also provided with seal cover cap towards a side of drg.
Described pressing plate can adopt copper material, between adjacent permanent magnetism steel disc, pressing plate is set, and to reinforcing permanent magnetism steel disc and being connected of yoke, prevents the loosening of permanent magnetism steel disc.
Bearing chamber near drg one side is made as to double sealed bearing, and further installs seal cover cap additional, realize better sealing effectiveness.
The outer wall of described casing is provided with the radiating ribs along circumferential arrangement, and the top of casing is provided with the fan being connected with casing inside.
In order to reduce taking up room of towing machine, the layout that is more conducive to machine room main frame, adopt fan that the air of casing inside is extracted out, utilize the air of extracting out to take away the heat producing when motor uses, the heat that radiating ribs produces during further by machine operation distributes in time.
Traction sheave is as load output mechanism, and the connection mode that adds key by interference is connected with rotating shaft, guarantees that electromagnetic field can be delivered to traction sheave by torque rating.
The connection mode of traction sheave and rotating shaft is alternatively: described rotating shaft is extended the part of casing with the flange of one forging, and described traction sheave is set in rotating shaft and by tie bolt and described flange and fixes.Described traction sheave is provided with for wearing the axis hole of rotating shaft, around described axis hole, is provided with the limited step with flange outer rim interference fit.Tie bolt is two groups, the quantity of two groups of tie bolts identical and around the shaft interval arrange, wherein at least one group is hinged bolts.
In order to adapt to the braking of the traction sheave of high-speed operation, need to improve the brake structural of towing machine, make the lock torque of drg adjustable, the structure of drg is preferably: described rotating shaft extend casing and dorsad one end of traction sheave by spline, be fixed with friction lining, described drg comprises and the relatively-stationary quiet dish of casing, and match with quiet dish for compressing the Moving plate of friction lining, in described Moving plate, be provided with the mounting hole of axial perforation, the part of the contiguous quiet dish of this mounting hole is extension, and the part of quiet dish is extension diameter section dorsad;
In described mounting hole, be provided with vibration-damped component, this vibration-damped component comprises the foot piece that stretches into extension and offset with quiet dish, and is in the expansion-head in extension diameter section;
The adjusting screw(rod) extending in extension diameter section is installed on described Moving plate, and adjusting screw(rod) offsets by buffering elastic component and expansion-head.
Moving plate and quiet dish mutually near time, Moving plate is first against foot piece, and foot piece is passed to expansion-head by impact, then by the buffering elastic component offseting with expansion-head, absorbs the energy clashing into, reduce the power that Moving plate and quiet dish clash into, also reduced Moving plate and quiet dish and clashed into the noise producing.
On described quiet dish, be provided with for promoting the spring of Moving plate and for regain the magnet coil of Moving plate by electromagnetic force, the supply line of magnet coil comprises alternating current terminals, time delay cut-out switch, rectifying circuit and the filter circuit connecting successively, and described time delay cut-out switch is also parallel with one-way conduction branch road.
Moving plate at drg completes after braking, described time delay cut-out switch is first in conducting state, when direction of current changes, between alternating current terminals and rectifying circuit all in conducting state, then further after filter circuit, output drives the higher direct current (DC) of voltage of magnet coil work, make Moving plate complete rapidly reset, with the adhesive of quiet dish phase, after time delay a period of time, time delay cut-out switch disconnects, between alternating current terminals and rectifying circuit, only by one-way conduction branch road, be communicated with (when direction of current changes, only there is the electric current of a direction can conducting), after rectifying circuit and filter circuit, the direct current (DC) of output LOW voltage is to maintain the adhesive of Moving plate and quiet dish.
As preferably, one end of described adjusting screw(rod) is stretched in extension diameter section and is offseted with expansion-head, and the other end extends mounting hole and is provided with axial locking nut.
The fit system of adjusting screw(rod) and mounting hole has multiple, and for example, a described Moving plate dorsad side of quiet dish is provided with the adapter plate with screw, described adjusting screw(rod) and this screw screw thread fit, and described axial locking nut is resisted against an adapter plate side of Moving plate dorsad.Described adapter plate interfixes by bolt and Moving plate.
In this embodiment, adjusting screw(rod) and adapter plate screw thread fit, axial locking nut carries out axial location to adjusting screw(rod), between adapter plate and Moving plate, can be bolted to connection, need repairing while changing vibration-damped component, only need adapter plate to pull down, do not need Moving plate and quiet dish to disassemble, be convenient to the carrying out of handling labor.
In order to increase the area of contact of buffering elastic component and adjusting screw(rod), preferably, in described extension diameter section, be provided with pad, described adjusting screw(rod) offsets by pad and buffering elastic component.
Buffering elastic component can have numerous embodiments, and having can deformation and restorable ability, and for example all kinds of springs, or nonmetallic shock pad are concrete as disk spring, coil spring, Rectangular Spring, rubber pad etc.Preferably, pad is provided with the relative erecting bed in position with expansion-head, and described buffering elastic component is the belleville spring that is set in erecting bed periphery.
In order to guarantee the reliability of shock attenuation unit work, can add other buffer gear, for example, the outer cover of described foot piece is provided with buffering stage clip, one end and quiet dish butt, the other end and the expansion-head butt of buffering stage clip.When disk spring follows the string, recoil spring can absorb the impact of Moving plate.
In order further to improve effect of vibration and noise reduction, quiet dish is provided with mounting groove towards a side of Moving plate, in this mounting groove, is fixed with shock pad.
As preferably, the position that described shock pad contacts with Moving plate is driving surface, between the periphery of driving surface and mounting groove inwall, leaves gap.
Shock pad adopts rubber pad, and after long-time use, deformation may occur rubber pad, between the periphery of shock pad driving surface and mounting groove, reserve gap, even rubber pad generation deformation, deformation also can preferentially be filled gap, and can not clamp-on in the gap of Moving plate and quiet dish.
The cantilevered permanent magnetic synchronous traction machine of the utility model, internal rotor and cantilever design have been retained, internal rotor guarantees the larger moment of less material output, and cantilever design is fixed by two bearings, makes towing machine that the utility model provides be applicable to the heavy－duty elevator of machine room.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the cantilevered permanent magnetic synchronous traction machine of the utility model;
Fig. 2 is the lateral plan of the cantilevered permanent magnetic synchronous traction machine of the utility model;
Fig. 3 is the schematic diagram of the first embodiment of drg in the cantilevered permanent magnetic synchronous traction machine of the utility model;
Fig. 4 is the schematic diagram of the second embodiment of drg in the cantilevered permanent magnetic synchronous traction machine of the utility model;
Fig. 5 is the schematic diagram of the third embodiment of drg in the cantilevered permanent magnetic synchronous traction machine of the utility model;
Fig. 6 is in the cantilevered permanent magnetic synchronous traction machine of the utility model, drives the circuit diagram of the magnet coil of Moving plate motion.
In figure: 1, Moving plate; 2, bolt; 3, disk spring; 4, adjusting screw(rod); 5, axial locking nut; 6, pad; 7, adapter plate; 8, expansion-head; 9, foot piece; 10, quiet dish; 11, shock pad; 12, buffering stage clip; 13, traction sheave; 14, flat key; 15, rotor; 16, seal cover cap; 17, radiating ribs; 18, casing; 19, fan.
The specific embodiment
Below in conjunction with accompanying drawing, the cantilevered permanent magnetic synchronous traction machine of the utility model is described in detail.
As shown in Figure 1 and Figure 2, a kind of cantilevered permanent magnetic synchronous traction machine, comprise motor, traction sheave 13 and drg (the indicated position of arrow C in figure), the rotating shaft that motor comprises casing and runs through casing, in casing, be provided with stator, in rotating shaft, be fixed with the rotor 15 acting on mutually with stator, one end of rotating shaft is extended casing and is fixed with traction sheave 13, and a casing 18 dorsad side of traction sheave 13 is provided with drg.
Rotor comprises and adopts interference to add flat key 14 modes and the fixing yoke of rotating shaft, and the permanent magnetism steel disc that is mounted on yoke periphery, between adjacent permanent magnetism steel disc, is provided with copper pressing plate, and copper pressing plate is bolted on the outer wall of yoke.
The relative both sides of casing are respectively equipped with bearing chamber, are provided with for the bearing of rotating shaft is installed in bearing chamber, and wherein the bearing chamber near drg one side is double sealed bearing, and bearing chamber is also provided with seal cover cap 16 towards a side of drg.
The outer wall of casing 18 is provided with the radiating ribs 17 along circumferential arrangement, and the top of casing 18 is provided with the fan 19 being connected with casing inside.
As shown in Figure 1, Figure 3, rotating shaft extend casing and dorsad one end of traction sheave by spline, be fixed with friction lining, drg comprises and the relatively-stationary quiet dish 10 of casing, and match with quiet dish 10 for compressing the Moving plate 1 of friction lining, in Moving plate 1, be provided with the mounting hole of axial perforation, the part of the contiguous quiet dish 10 of mounting hole is extension, and the part of quiet dish 10 is extension diameter section dorsad.
In mounting hole, be provided with vibration-damped component, vibration-damped component comprises the foot piece 9 that inserts in extension and offset with quiet dish 10, and is in the expansion-head 8 in extension diameter section; The adjusting screw(rod) 4 extending in extension diameter section is installed on Moving plate 1, and adjusting screw(rod) 4 offsets by disk spring 3 and expansion-head 8.
One end of adjusting screw(rod) 4 is stretched in extension diameter section and is offseted with expansion-head 8, and the other end extends mounting hole and is provided with axial locking nut 5.
A Moving plate 1 dorsad side of quiet dish 10 is provided with the adapter plate 7 with screw, and adapter plate 7 fixes by bolt 2 and Moving plate 1, adjusting screw(rod) 4 and screw screw thread fit, and axial locking nut 5 is resisted against adapter plate 7 side of Moving plate 1 dorsad.
In extension diameter section, be provided with pad 6, adjusting screw(rod) 4 offsets by pad 6 and disk spring 3, and pad 6 is provided with the erecting bed relative with expansion-head 8 positions, and disk spring 3 is set in the periphery of erecting bed.
In order further to promote the effect of vibration and noise reducing, as shown in Figure 4, quiet dish 10 is provided with mounting groove towards a side of Moving plate 1, is fixed with shock pad 11 in mounting groove.The position that shock pad 11 contacts with Moving plate 1 is driving surface, between the periphery of driving surface and mounting groove inwall, leaves gap.
In order to guarantee the reliability of vibration and noise reducing device, as shown in Figure 5, the outer cover of foot piece 9 is provided with buffering stage clip 12, one end and quiet dish 10 butts, the other end and expansion-head 8 butts of buffering stage clip 12.When disk spring 3 lost efficacy, buffering stage clip 12 can play the effect of vibration and noise reducing.
In order to coordinate the needs of the towing machine of heavy load, in drg, order about Moving plate larger with the strength that brake wheel acts on mutually, therefore, the strength of regaining Moving plate correspondingly also needs larger, and the strength that maintains Moving plate and the mutual adhesive of quiet dish does not need very large, in order to adapt to this needs, to regaining the circuit of the magnet coil of Moving plate, improved.
On quiet dish, be provided with for promoting the spring of Moving plate and for regain the magnet coil of Moving plate by electromagnetic force, as shown in Figure 6, the supply line of magnet coil comprises alternating current terminals, time delay cut-out switch, rectifying circuit and the filter circuit connecting successively, and time delay cut-out switch is also parallel with one-way conduction branch road.
Moving plate at drg completes after braking, time delay cut-out switch is first in conducting state, at direction of current, be in figure shown in arrow A or arrow B time, between alternating current terminals and rectifying circuit all in conducting state, further after filter circuit, output drives the higher direct current (DC) of voltage of magnet coil work, makes Moving plate complete rapidly reset, with the adhesive of quiet dish phase; After time delay a period of time, time delay cut-out switch disconnects, between alternating current terminals and rectifying circuit, only by one-way conduction branch road, be communicated with, conducting while only having direction of current to be the direction shown in arrow A, or conducting while only having direction of current to be the direction shown in arrow B, then after rectifying circuit and filter circuit, the direct current (DC) of output LOW voltage is to maintain the adhesive of Moving plate and quiet dish.
Claims (10)
1. a cantilevered permanent magnetic synchronous traction machine, comprise motor, traction sheave and drg, the rotating shaft that described motor comprises casing and runs through casing, in casing, be provided with stator, in rotating shaft, be fixed with the rotor acting on mutually with stator, one end of described rotating shaft is extended casing and is fixed with described traction sheave, and a described casing dorsad side of traction sheave is provided with described drg, it is characterized in that:
Described rotor comprises and adopts interference to add flat key mode and the fixing yoke of rotating shaft, and the permanent magnetism steel disc that is mounted on yoke periphery, between adjacent permanent magnetism steel disc, is provided with pressing plate, and this pressing plate is bolted on the outer wall of yoke;
The relative both sides of described casing are respectively equipped with bearing chamber, are provided with for the bearing of described rotating shaft is installed in bearing chamber, and wherein the bearing chamber near drg one side is double sealed bearing, and this bearing chamber is also provided with seal cover cap towards a side of drg.
2. cantilevered permanent magnetic synchronous traction machine as claimed in claim 1, is characterized in that, the outer wall of described casing is provided with the radiating ribs along circumferential arrangement, and the top of casing is provided with the fan being connected with casing inside.
3. cantilevered permanent magnetic synchronous traction machine as claimed in claim 1, it is characterized in that, described rotating shaft extend casing and dorsad one end of traction sheave by spline, be fixed with friction lining, described drg comprises and the relatively-stationary quiet dish of casing, and match with quiet dish for compressing the Moving plate of friction lining, in described Moving plate, be provided with the mounting hole of axial perforation, the part of the contiguous quiet dish of this mounting hole is extension, and the part of quiet dish is extension diameter section dorsad;
In described mounting hole, be provided with vibration-damped component, this vibration-damped component comprises the foot piece that stretches into extension and offset with quiet dish, and is in the expansion-head in extension diameter section;
The adjusting screw(rod) extending in extension diameter section is installed on described Moving plate, and adjusting screw(rod) offsets by buffering elastic component and expansion-head.
4. cantilevered permanent magnetic synchronous traction machine as claimed in claim 3, it is characterized in that, on described quiet dish, be provided with for promoting the spring of Moving plate and for regain the magnet coil of Moving plate by electromagnetic force, the supply line of magnet coil comprises alternating current terminals, time delay cut-out switch, rectifying circuit and the filter circuit connecting successively, and described time delay cut-out switch is also parallel with one-way conduction branch road.
5. cantilevered permanent magnetic synchronous traction machine as claimed in claim 3, is characterized in that, one end of described adjusting screw(rod) is stretched in extension diameter section and offseted with expansion-head, and the other end extends mounting hole and is provided with axial locking nut.
6. cantilevered permanent magnetic synchronous traction machine as claimed in claim 5, it is characterized in that, a described Moving plate dorsad side of quiet dish is provided with the adapter plate with screw, described adjusting screw(rod) and this screw screw thread fit, and described axial locking nut is resisted against an adapter plate side of Moving plate dorsad.
7. cantilevered permanent magnetic synchronous traction machine as claimed in claim 6, is characterized in that, described adapter plate interfixes by bolt and Moving plate.
8. cantilevered permanent magnetic synchronous traction machine as claimed in claim 3, is characterized in that, in described extension diameter section, is provided with pad, and described adjusting screw(rod) offsets by pad and buffering elastic component.
9. cantilevered permanent magnetic synchronous traction machine as claimed in claim 8, is characterized in that, pad is provided with the relative erecting bed in position with expansion-head, and described buffering elastic component is the belleville spring that is set in erecting bed periphery.
10. cantilevered permanent magnetic synchronous traction machine as claimed in claim 3, is characterized in that, quiet dish is provided with mounting groove towards a side of Moving plate, in this mounting groove, is fixed with shock pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420243707.0U CN203903743U (en) | 2014-05-13 | 2014-05-13 | Cantilever type permanent magnet synchronous tractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420243707.0U CN203903743U (en) | 2014-05-13 | 2014-05-13 | Cantilever type permanent magnet synchronous tractor |
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| Publication Number | Publication Date |
|---|---|
| CN203903743U true CN203903743U (en) | 2014-10-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420243707.0U Active CN203903743U (en) | 2014-05-13 | 2014-05-13 | Cantilever type permanent magnet synchronous tractor |
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| Country | Link |
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| CN (1) | CN203903743U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108367883A (en) * | 2015-09-03 | 2018-08-03 | 奥的斯电梯公司 | Elevator brake |
| CN110778482A (en) * | 2019-11-19 | 2020-02-11 | 兰州理工大学 | Hollow shaft orifice plate centrifugal pump for enhancing oil suction of displacement pump |
| CN112897293A (en) * | 2021-01-15 | 2021-06-04 | 高企达电梯(江苏)有限公司 | Traction type construction elevator synchronously lifted with building machine |
-
2014
- 2014-05-13 CN CN201420243707.0U patent/CN203903743U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108367883A (en) * | 2015-09-03 | 2018-08-03 | 奥的斯电梯公司 | Elevator brake |
| CN110778482A (en) * | 2019-11-19 | 2020-02-11 | 兰州理工大学 | Hollow shaft orifice plate centrifugal pump for enhancing oil suction of displacement pump |
| CN112897293A (en) * | 2021-01-15 | 2021-06-04 | 高企达电梯(江苏)有限公司 | Traction type construction elevator synchronously lifted with building machine |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |