CN204689319U - A kind of gearless driving elevator traction machine and elevator drive system - Google Patents
A kind of gearless driving elevator traction machine and elevator drive system Download PDFInfo
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- CN204689319U CN204689319U CN201420628357.XU CN201420628357U CN204689319U CN 204689319 U CN204689319 U CN 204689319U CN 201420628357 U CN201420628357 U CN 201420628357U CN 204689319 U CN204689319 U CN 204689319U
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Abstract
The utility model relates to electric drive technology field, particularly relates to a kind of gearless driving elevator traction machine and elevator drive system.Compared with prior art, this gearless driving elevator traction machine, comprising: AC asynchronous speed-regulating motor, and is connected with AC asynchronous speed-regulating motor and controls the speed-adjusting and control system that AC asynchronous speed-regulating motor operates.The utility model can according to the load carrying ability of elevator and ladder speed, the stator core of flexible design AC asynchronous speed-regulating motor and the length of rotor core and diameter, and reduced the ac frequency that exports AC asynchronous speed-regulating motor to by speed-adjusting and control system with while meeting slow speed of revolution-large torque request, greatly reduce energy consumption and the productive costs of gearless driving elevator traction machine.
Description
Technical field
The utility model relates to electric drive technology field, particularly relates to a kind of gearless driving elevator traction machine and elevator drive system.
Background technology
Towing machine is the power plant of elevator, also known as elevator main, for conveying and transferring power, elevator is run.Towing machine includes gear transmission elevator traction machine and gearless driving elevator traction machine according to deceleration type classification.Gearless driving elevator traction machine generally includes electrical motor, drg, coupler, traction sheave and frame etc., by known its of structure that form of gearless driving elevator traction machine, there is simple, the easy for installation and little advantage of wearing and tearing of structure, it is made to be widely used in the Electric Traction of elevators field (load-carrying≤2T, terraced speed≤4m/s).
But present inventor finds, gearless driving elevator traction machine requires that electrical motor exports slow speed of revolution-high pulling torque, and the electrical motor many employings AC permanent magnet synchronous motor in existing gearless driving elevator traction machine, the number of poles of electrical motor is often increased in order to meet this requirement, thus cause its power factor and efficiency to decrease, energy efficiency indexes is very low, causes the power consumption of gearless driving elevator traction machine greatly to increase.
Utility model content
The utility model provides a kind of gearless driving elevator traction machine and elevator drive system, while meeting slow speed of revolution-large torque request, can greatly reduce energy consumption and the productive costs of gearless driving elevator traction machine.
For this reason, the utility model provides a kind of gearless driving elevator traction machine, comprising: AC asynchronous speed-regulating motor, traction sheave, drg, and connect described AC asynchronous speed-regulating motor and control described AC asynchronous speed-regulating motor running speed-adjusting and control system, wherein
Described AC asynchronous speed-regulating motor comprises: shell, is arranged at the stators and rotators in described shell; Wherein, described stator comprises stator core and stator winding, and described stator winding is fixed on described stator core; Described rotor comprises rotor core, rotor windings and rotating shaft, and described rotor windings is fixed on described rotor core, and described rotor core is fixed in described rotating shaft;
The load side of described traction sheave and described rotating shaft is in transmission connection, and described drg is assemblied on described AC asynchronous speed-regulating motor for the described rotating shaft of braking.
In the technical program, compared to prior art, can according to the load carrying ability of elevator and ladder speed, flexible design is assemblied in the stator core of the AC asynchronous speed-regulating motor in gearless driving elevator traction machine and the length of rotor core and diameter, and reduced the ac frequency that exports AC asynchronous speed-regulating motor to by speed-adjusting and control system with while meeting slow speed of revolution-large torque request, do not need the number of poles increasing electrical motor, make the efficiency of AC asynchronous speed-regulating motor higher, energy consumption is lower, and owing to not needing the number of poles increasing electrical motor, the producting process difficulty of AC asynchronous speed-regulating motor is reduced, cost is lower, and adopt the docking facility of existing AC asynchronous speed-regulating motor just can realize maintenance, and then the cost of gearless driving elevator traction machine is reduced greatly.
In technique scheme, described rotor core is the silicon steel plate of stacked setting, and described rotor windings is cast aluminum type rotor windings.Because the material source of silicon steel plate and cast-aluminum rotor is stablized, belong to conventional material, less on the impact of surrounding environment during making; And there is not the possibility of demagnetization, make the stability of the outputting power of electrical motor higher, and then make the serviceability of gearless driving elevator traction machine higher.
When considering that gearless driving elevator traction machine is applied; usually also in the rotating shaft of AC asynchronous speed-regulating motor, velocity feedback element is equipped with; with detect rotating shaft rotating speed and by this speed feedback to speed-adjusting and control system; speed-adjusting and control system is according to the rotating speed of the programming control AC asynchronous speed-regulating motor of setting and torque; in order to obtain rotating speed comparatively accurately and improve the control accuracy of actuator, need the rotating shaft of AC asynchronous speed-regulating motor in the axial direction without play.
For this reason, preferably, described AC asynchronous speed-regulating motor also comprises the bearing be sheathed in described rotating shaft be arranged in described shell, first spring collar of the outer ring of bearing described in axial limiting, and the second spring collar of the inner ring of bearing described in axial limiting, wherein, described shell offers the bearing hole of accommodating described bearing, the first collar groove of accommodating described first spring collar, and described rotating shaft offers the second collar groove of accommodating described second spring collar.
In order to when not improving processing technology precision, effectively reduce the end float misalignment displacement of rotating shaft, velocity feedback element is made to obtain rotating speed comparatively accurately, and improve the control accuracy of speed-adjusting and control system, and then improve serviceability and the stationarity of gearless driving elevator traction machine, preferably, described first collar groove has away from the sidewall of described outer ring the first conical suface abutted against with described first spring collar, and described first conical suface reduces along away from the diameter on the direction of described outer ring.
Equally, described second collar groove has away from the sidewall of described inner ring the second conical suface abutted against with described second spring collar, and described second conical suface increases along away from the diameter on the direction of described inner ring.
Preferably, the angle of the side end face of described first conical suface and described first spring collar is within the scope of 0 ° ~ 45 °, and/or the angle of the side end face of described second conical suface and described second spring collar is within the scope of 0 ° ~ 45 °.
In order to effectively reduce the friction noise of plate disc brake when non-brake state between sound parts, described drg is plate disc brake, comprising:
Circumference is fixed at least one friction disc in described rotating shaft;
The both sides of friction disc described in each are respectively arranged with the first braking element and the second braking element, and wherein said first braking element and the second braking element clamp corresponding described friction disc when braking;
And corresponding self-locking adjustment assembly described in each set by friction disc, described self-locking adjustment assembly regulates corresponding friction disc to lock to desired location on the axial direction of described rotating shaft, described desired location be described friction disc respectively and there is between described first braking element and described second braking element the first setting gap and second set gap.
Concrete, described self-locking adjustment assembly comprises:
Corresponding annular elastic element described in each set by friction disc, the both sides of described annular elastic element abut shaft shoulder portion and the end face of corresponding described friction disc near described first braking element side of described rotating shaft respectively;
Corresponding friction disc described in each is set and be positioned at the self-locking type adjustment part of the side away from described first braking element.
Concrete, described annular elastic element is spring leaf, described self-locking type adjustment part comprises: be fixed on the adjustment plate in described rotating shaft, and at least two adjustment screws, wherein, the threaded shank adjusting screw described in each wears described adjustment plate and abuts the end face of described friction disc away from the side of described first braking element.
Concrete, described annular elastic element is spring leaf, and described self-locking type adjustment part is self-locking type spring leaf.
The utility model additionally provides a kind of elevator drive system, comprising: terraced case, and the gearless driving elevator traction machine described in aforementioned arbitrary technical scheme, and described traction sheave drives described terraced case motion.Because this gearless driving elevator traction machine is in operational process, greatly can reduce energy consumption and the manufacturing cost of gearless driving elevator traction machine, therefore, energy consumption and the productive costs with the elevator drive system of this gearless driving elevator traction machine are also lower.
Accompanying drawing explanation
The main TV structure schematic diagram of gearless driving elevator traction machine one embodiment that Fig. 1 a provides for the utility model;
Fig. 1 b is the right TV structure schematic diagram of the gearless driving elevator traction machine shown in Fig. 1 a;
The main TV structure schematic diagram of another embodiment of gearless driving elevator traction machine that Fig. 1 c provides for the utility model;
Fig. 1 d is the right TV structure schematic diagram of the gearless driving elevator traction machine shown in Fig. 1 c;
The cross section structure schematic diagram of AC asynchronous speed-regulating motor in the gearless driving elevator traction machine that Fig. 2 provides for the utility model;
The local section structural representation of coder installed position in gearless driving elevator traction machine one embodiment that Fig. 3 provides for the utility model;
Fig. 4 provides the local section structural representation at the installing positions of bearings place of AC asynchronous speed-regulating motor in gearless driving elevator traction machine one embodiment for the utility model;
Fig. 5 a is the enlarged diagram at A place in Fig. 4;
Fig. 5 b is the enlarged diagram at B place in Fig. 4;
Fig. 6 provides the local section structural representation at the installing positions of bearings place of AC asynchronous speed-regulating motor in another embodiment of gearless driving elevator traction machine for the utility model;
Fig. 7 a is the enlarged diagram at A place in Fig. 6;
Fig. 7 b is the enlarged diagram at B place in Fig. 6;
Fig. 8 provides the local section structural representation at drg place in gearless driving elevator traction machine one embodiment for the utility model;
Fig. 9 provides the local section structural representation at drg place in another embodiment of gearless driving elevator traction machine for the utility model.
Reference numeral:
1-AC asynchronous speed-regulating motor 2-traction sheave
3-drg 4-coder
11-shell 12-stator 13-rotor
111-bearing hole 112-first collar groove 1121-first conical suface
121-stator core 122-stator winding
131-rotor core 132-rotor windings
14-rotating shaft 141-second collar groove 1411-second conical suface
142-shaft shoulder portion
15-bearing 151-outer ring 152-inner ring
16-first spring collar 17-second spring collar
31-friction disc 32-first braking element 33-second braking element
34-self-locking adjustment assembly 341-annular elastic element
342-self-locking type adjustment part 3421-adjustment plate 3422-adjusts screw
Detailed description of the invention
The application scenario of elevator is dragged at gearless driving elevator traction machine, electrical motor is needed to export slow speed of revolution-large torque, the gearless driving elevator traction machine that the utility model provides, can according to the load carrying ability of elevator and ladder speed, flexible design is assemblied in the stator core of the AC asynchronous speed-regulating motor in gearless driving elevator traction machine and the length of rotor core and diameter, and reduced the ac frequency that exports AC asynchronous speed-regulating motor to by speed-adjusting and control system with while meeting slow speed of revolution-large torque request, greatly reduce energy consumption and the productive costs of gearless driving elevator traction machine.
For more clearly understanding the utility model embodiment, with reference to accompanying drawing, be described in detail with specific embodiment.
As Fig. 1 a ~ Fig. 1 d, and shown in Fig. 2, be the main TV structure schematic diagram of the gearless driving elevator traction machine in the first embodiment of the present utility model, this gearless driving elevator traction machine comprises: AC asynchronous speed-regulating motor 1, traction sheave 2, and drg 3,
AC asynchronous speed-regulating motor 1 comprises: shell 11, is arranged at the stator 12 in shell 11 and rotor 13; Wherein, stator 12 comprises stator core 121 and stator winding 122, and stator winding 122 is fixed on stator core 121; Rotor 13 comprises rotor core 131, rotor windings 132 and rotating shaft 14, and rotor windings 132 is fixed on rotor core 131, and rotor core 131 is fixed in rotating shaft 14;
Traction sheave 2 is in transmission connection with the load side of rotating shaft 14, and drg 3 is assemblied on AC asynchronous speed-regulating motor 1 for braking rotating shaft 14;
This gearless driving elevator traction machine also comprises: the speed-adjusting and control system (not shown) operated with AC asynchronous speed-regulating motor 1 connection control AC asynchronous speed-regulating motor 1.
The relative motion of the rotating field that the principle of work of the AC asynchronous speed-regulating motor 1 in the present embodiment produces specifically by stator 12 and rotor windings 132, rotor windings 132 cutting magnetic induction line produces induced electric motive force, thus make to produce inducing current in rotor windings 132, and then inducing current in rotor windings 132 and magnetic fields, producing electromagnetic torque makes rotor 13 rotate, thus by rotating shaft 14 outputting power of AC asynchronous speed-regulating motor 1.It should be noted that, in the present embodiment, stator core 121 adopts the silicon steel plate of general stacked setting, and stator winding 122 adopts general circular enamel wire.
In order to meet this requirement of gearless driving elevator traction machine slow speed of revolution-large torque in prior art, electrical motor must be realized by the mode increasing number of poles, electrical motor in the present embodiment adopts AC asynchronous speed-regulating motor, can according to the applied environment of gearless driving elevator traction machine, the i.e. requirement of elevator loading amount and ladder speed, determine diameter and the length of stator core and rotor core, and the frequency exporting the alternating current of AC asynchronous speed-regulating motor to is reduced by speed-adjusting and control system, to obtain the AC asynchronous speed-regulating motor of different size, corresponding rotating speed and torque are provided, thus realize exporting slow speed of revolution-large torque, to meet the requirement that gearless driving elevator traction machine drags elevator.It should be noted that, the concrete form of speed-adjusting and control system is not limit, such as, can be Fu, or frequency converter etc., as long as the frequency reducing the alternating current exporting AC asynchronous speed-regulating motor to can be realized, AC asynchronous speed-regulating motor is made to export slow speed of revolution-large torque.
When the gearless driving elevator traction machine provided with the present embodiment is below applied to elevator dragging, according to the requirement of elevator loading amount and ladder speed, determine diameter and the length of stator core and rotor core, and reduced by speed-adjusting and control system and export the frequency of alternating current on AC asynchronous speed-regulating motor to, technical parameter when obtaining the AC asynchronous speed-regulating motor work of different size is to illustrate the present embodiment.
As shown in table 1 below, model is the technical parameter that the AC asynchronous speed-regulating motor of YWY-1.5, YWY-1.6, YWY-1.7 tri-kinds of specifications works when load-carrying is 1000Kg.
Table 1
As shown in table 2 below, model is the technical parameter that the AC asynchronous speed-regulating motor of YWY-1.5, YWY-1.6, YWY-1.7 tri-kinds of specifications works when load-carrying is 1150Kg.
Table 2
As shown in table 3 below, model is the technical parameter that the AC asynchronous speed-regulating motor of YWY-1.5, YWY-1.6, YWY-1.7 tri-kinds of specifications works when load-carrying is 1250Kg.
Table 3
As shown in table 4 below, model is the technical parameter that the AC asynchronous speed-regulating motor of YWY-2.5, YWY-3.0, YWY-4.0 tri-kinds of specifications works when load-carrying is respectively 1000Kg, 1250Kg and 1350Kg.
Table 4
As shown in table 5 below, model is the technical parameter that the AC asynchronous speed-regulating motor of YWY-2.0, YWY-2.5, YWY-3.0, YWY-4.0 tetra-kinds of specifications works when load-carrying is respectively 1600Kg, 2000Kg.
Table 5
As can be seen from table 1 ~ table 5, as load-carrying≤2T, during terraced speed≤4m/s, the AC asynchronous speed-regulating motor in the gearless driving elevator traction machine that the present embodiment provides
(power factor) is all between 0.89 ~ 0.91, the efficiency of AC asynchronous speed-regulating motor is between 85% ~ 92%, especially terraced speed is higher, the efficiency of AC asynchronous speed-regulating motor is higher, energy efficiency indexes (efficiency of electrical motor and the product of power factor) is higher, and namely energy consumption is lower.That is in the gearless driving elevator traction machine that the present embodiment provides, diameter and the length of different stator cores and rotor core is adopted by AC asynchronous speed-regulating motor, adopt the frequency reducing alternating current when exporting setting torque can realize the output of slow speed of revolution-large torque simultaneously, meet the requirement that elevator drags, and the number of poles of the asynchronous speed-adjustable motor that do not need to increase exchanges, make the efficiency of AC asynchronous speed-regulating motor higher, energy consumption is lower, and because the number of poles of the asynchronous speed-adjustable motor that do not need to increase exchanges makes the producting process difficulty of AC asynchronous speed-regulating motor reduce, cost is lower, and adopt the docking facility of existing Asynchronous Communication asynchronous speed-adjustable motor just can realize maintenance, and then the cost of gearless driving elevator traction machine is reduced greatly.
The motor technology parameter in the gearless driving elevator traction machine and existing permanent magnetism synchronization gear wheel free transmission elevator towing machine that the present embodiment provides is given in table 6.
Table 6
Wherein, the current value in table 6 in note 1 after "/" is the sample current of the permasyn morot in certain company's gearless driving elevator traction machine; Energy efficiency indexes (efficiency of electrical motor and the product of power factor) in note 2 after "/" calculates according to above-mentioned sample current to obtain.
As can be seen from Table 6, the electric current of AC asynchronous speed-regulating motor in the gearless driving elevator traction machine that the present embodiment provides under each operating mode is all less than the sample current of permasyn morot under corresponding operating mode, its energy efficiency indexes is greater than the energy efficiency indexes of permasyn morot under corresponding operating mode, therefore obviously energy-conservation when elevator drags of the gearless driving elevator traction machine that provides of the present embodiment; Electrical motor simultaneously in the gearless driving elevator traction machine that provides of the present embodiment is AC asynchronous speed-regulating motor, but also comprise and to be connected with AC asynchronous speed-regulating motor and to control the speed-adjusting and control system that AC asynchronous speed-regulating motor operates, AC asynchronous speed-regulating motor in the present embodiment is had can start continually and brake, starting current be less and run the little advantage of noise.
Further, the gearless driving elevator traction machine that the utility model second embodiment provides, on the basis of the first embodiment, rotor core 131 all adopts the silicon steel plate of stacked setting, and rotor windings 132 is cast-aluminum rotor winding.In prior art, adopt the rotor of permanent magnet type, permanent-magnet material be very easily subject to high temperature or oxide etch impact and occur demagnetize possibility, the stability of the outputting power of electrical motor is reduced, greatly reduce elevator operation safe reliability; And permanent-magnet material exploitation often causes the gross pollution of surrounding environment to cause; And be made up of rotor core 131 and rotor windings 132 due to the rotor in the present embodiment, and rotor core 131 adopts silicon steel plate, rotor windings 132 adopts cast aluminum type rotor windings, and the material source of silicon steel plate and cast-aluminum rotor is stablized, belong to conventional material, less on the impact of surrounding environment during making; And there is not the possibility of demagnetization, make the stability of the outputting power of AC asynchronous speed-regulating motor higher, and then make the serviceability of gearless driving elevator traction machine higher.
It should be noted that; with reference to shown in Fig. 3; when AC asynchronous speed-regulating motor 1 is applied to gearless driving elevator traction machine; usually also in the rotating shaft 14 of AC asynchronous speed-regulating motor 1, velocity feedback element is equipped with; such as coder 4 or magslip, to detect the rotating speed of rotating shaft and by this speed feedback to speed-adjusting and control system, speed-adjusting and control system is according to the rotating speed of programming control AC asynchronous speed-regulating motor of setting and torque; as shown in Figure 3, coder is assemblied in rotating shaft 14.In order to obtain detected value comparatively accurately and improve the control accuracy of actuator, need the rotating shaft 14 of AC asynchronous speed-regulating motor in the axial direction without play.
For this reason, the gearless driving elevator traction machine that the utility model the 3rd embodiment provides, with reference to Fig. 4, shown in Fig. 5 a and Fig. 5 b, on the basis of previous embodiment, AC asynchronous speed-regulating motor also comprises the bearing 15 be sheathed in rotating shaft 14 be arranged in shell 11, and the first spring collar 16 of the outer ring 151 of axial limiting bearing 15, and the second spring collar 17 of the inner ring 152 of axial limiting bearing 15, wherein, shell 11 offers the bearing hole 111 of accommodating bearing 15 and the first collar groove 112 of accommodating first spring collar 16, rotating shaft 14 offers the second collar groove 141 of accommodating second spring collar 17.
In the present embodiment, the first spring collar 16 is placed in the first collar groove 112, abuts with the outer ring 151 of bearing 15, and coordinates outer ring 151 axial location of bearing 15 with the bearing hole of shell 11; Second spring collar 17 is placed in the second collar groove 141, abuts with the inner ring 152 of bearing 15, and coordinates inner ring 152 axial location of bearing 15 with the shaft shoulder portion 142 of rotating shaft 14.Thus rotating shaft 14 is axially located in the effect of shell 11 and bearing 15, velocity feedback element is made to obtain detected value comparatively accurately, and improve the control accuracy of speed-adjusting and control system, and then improve serviceability and the stationarity of gearless driving elevator traction machine.
Continue with reference to shown in Fig. 5 a, the form of the first collar groove 112 has multiple, such as, adopt the form of straight trough, and namely the first collar groove is column type groove.But, when the first collar slot column type groove, because the manufacturing errors of the processing technology precision of the first collar groove and the thickness of the first spring collar itself affects, can be arranged in the first collar groove to make the first spring collar, the difference of the axial dimension of the first collar groove and the thickness of spring collar can only be principal-employment, that is after AC asynchronous speed-regulating motor installation, AC asynchronous speed-regulating motor dimension chain in the axial direction has gap delta 1, therefore effectively cannot ensure that rotating shaft 14 is without end float misalignment.
For this reason, on the basis of above-described embodiment, as shown in Fig. 6 and Fig. 7 a, the gearless driving elevator traction machine that 4th embodiment of the present utility model provides, first collar groove 112 is that the first conical suface 1121, first conical suface 1121 abutted against with the first spring collar 16 reduces along the diameter on the direction away from outer ring 151 away from the sidewall of outer ring 151.
When the first collar groove is that diameter is along during away from the first conical suface that the direction of outer ring reduces away from the sidewall of outer ring, due to the extendability of conical suface, the difference of the thickness of the axial dimension of the first collar groove and spring collar can be processed as minus tolerance, first spring collar 16 also can be arranged in the first collar groove 114, and this first conical suface 1121 can by the first spring collar 16 outer ring 151 being pressed in bearing 15 tightly, thus by the outer ring axial location of bearing, make it without end float misalignment, thus effectively reduce the end float misalignment displacement of rotating shaft.It should be noted that, be only a kind of example shown in Fig. 6 and Fig. 7 a, in fact the part that abuts against of the first collar groove 112 and the first spring collar 16, is conical suface, and that is, the sidewall of the first collar groove 112 can be some or all of is conical suface.
As from the foregoing, the present embodiment can when not improving processing technology precision, effectively reduce the end float misalignment displacement of rotating shaft 14, velocity feedback element is made to obtain detected value comparatively accurately, and improve the control accuracy of speed-adjusting and control system, and then improve serviceability and the stationarity of gearless driving elevator traction machine.
Shown in Fig. 5 b, second collar groove adopts the form of straight trough, when namely the second collar groove is column type groove, because the manufacturing errors of the processing technology precision of the first collar groove and the thickness of the first spring collar itself affects, can be arranged in the first collar groove to make the first spring collar, after AC asynchronous speed-regulating motor installation, AC asynchronous speed-regulating motor dimension chain in the axial direction has gap delta 2.Therefore, preferred further, on the basis of above-mentioned 4th embodiment, continue with reference to shown in Fig. 6 and Fig. 7 b, in the gearless driving elevator traction machine that the utility model the 5th embodiment provides, second collar groove 141 is that the second conical suface 1411, second conical suface 1411 abutted against with the second spring collar 17 increases along away from the diameter on the direction of inner ring away from the sidewall of inner ring 152.
Similar with aforesaid beneficial effect, due to the extendability of conical suface, the difference of the thickness of the axial dimension of the second collar groove and the second spring collar can be processed as minus tolerance, second spring collar 17 also can be arranged in the second collar groove 141, and this second conical suface 1411 can by the second spring collar 17 inner ring 152 being pressed in bearing 15 tightly, thus by the inner ring axial location of bearing, make it without end float misalignment, now because the outer ring of bearing and inner ring are all axially located, therefore the displacement effectively reducing the end float misalignment of rotating shaft even makes this displacement be zero.Equally, the sidewall of the second collar groove 141 can be some or all of is conical suface.
As from the foregoing, in the present embodiment, on the outer ring that first spring collar and the second spring collar are tightly pressed in bearing respectively and inner ring, thus can when not improving processing technology precision, the end float misalignment displacement effectively reducing rotating shaft even makes this displacement be zero, make velocity feedback element obtain detected value comparatively accurately, and improve the control accuracy of speed-adjusting and control system, and then improve serviceability and the stationarity of gearless driving elevator traction machine.
In the aforementioned embodiment, the angle α of the side end face of the first conical suface and the first spring collar is preferably within the scope of 0 ° ~ 45 °; Certainly, the angle β of the side end face of the second conical suface and the second spring collar also can preferably within the scope of 0 ° ~ 45 °.
It should be noted that; the operating mode of elevator brake when gearless driving elevator traction machine is usually also operated in flat bed or has a power failure; now gearless driving elevator traction machine is configured with drg usually; the concrete form of drg is not limit; can be such as plate disc brake (shown in Fig. 1 a) also can be drum brake mechanism (shown in Fig. 1 c).When drg adopts plate disc brake, the mode circumference that friction disc adopts key to connect usually is fixed in rotating shaft and rotates along with the rotation of rotating shaft, and reliably do not locate in the axial direction, lay respectively at the first braking element of friction disc both sides and the second braking element grip friction dish when braking thus realize braking, but when non-brake state, because friction disc is not reliably located in the axial direction, therefore can produce friction noise with the first braking element or the second braking element, the occasion requiring noise little cannot be applied to.
For this reason, the gearless driving elevator traction machine that the utility model the 6th embodiment provides, on the basis of aforementioned any embodiment, as shown in Figure 8, drg 3 is plate disc brake, and it comprises: circumference is fixed on a friction disc 31 in rotating shaft 14;
The both sides of friction disc 31 are respectively arranged with the first braking element 32 and the second braking element 33, and wherein the first braking element 32 and the second braking element 33 clamp corresponding friction disc 31 when braking;
And the self-locking adjustment assembly 34 set by corresponding friction disc 31, self-locking adjustment assembly 34 regulates corresponding friction disc 31 to lock to desired location on the axial direction of rotating shaft 14, this desired location be friction disc 31 respectively and between the first braking element 32 and the second braking element 33, there is the first setting gap and second and set gap.
Owing to only there is a friction disc at this plate disc brake, be therefore defined as single disc-type drg.Due in the use procedure of single disc-type drg, usual first braking element is fixed with the relative AC asynchronous speed-regulating motor 1 of in the second braking element, another can move along axis, and the braking element that definition and AC asynchronous speed-regulating motor are fixed is brake disc, can be defined as armature along the braking element of axis movement.As shown in Figure 8, the first braking element 32 relatively AC asynchronous speed-regulating motor is fixed, and is defined as brake disc; Second braking element 33 can move along axis, is defined as armature; First setting gap and the second value setting gap are not specifically limit, and the concrete structure according to plate disc brake and rotating shaft is determined.
The gearless driving elevator traction machine that the present embodiment provides, self-locking adjustment assembly regulates the position of friction disc 31 on the axial direction of rotating shaft 14 and locks, that is can regulate the gap of friction disc 31 respectively and between brake disc 32 and armature 33 and lock, the gap d 1 of friction disc and brake disc is made to be in rational setting range, such as within the scope of 0.25mm ~ 0.5mm, make the gap d 2 of friction disc and armature also be in rational setting range simultaneously, thus make under non-brake state, the friction disc rotated has gap respectively and between brake disc and armature, and this gap can be retrained, thus prevent the friction between friction disc and brake disc or armature and the situation producing noise occurs, that is the friction noise between sound parts in plate disc brake 3 is effectively reduced.
The concrete form of self-locking adjustment assembly has multiple, and such as in one embodiment, self-locking adjustment assembly 34 comprises:
Each annular elastic element 341 set by friction disc 31 corresponding, the both sides of this annular elastic element 341 abut shaft shoulder portion and the end face of corresponding friction disc 31 near the first braking element 32 side of rotating shaft 14 respectively;
Each friction disc 31 corresponding is set and be positioned at the self-locking type adjustment part 342 of the side away from the first braking element 32.
With reference to shown in Fig. 8, left side in the drawings, annular elastic element 341 is arranged in rotating shaft 14, the kind of annular elastic element 341 has multiple, such as, when being spring leaf, both sides are connected to the shaft shoulder portion of rotating shaft 14 and corresponding friction disc 31 respectively on the end face of the first braking element 32 side, conflict in the left side (left side in Fig. 8) of friction disc in the side that such as spring leaf protrudes, make it produce a thrust to the right, friction disc 31 is not contacted with brake disc (the first braking element 32); Right side in the drawings, self-locking type adjustment part 342 is positioned on the right side of friction disc 31, the adjustment position of friction disc 31 in rotating shaft 14, until friction disc 31 and the gap between brake disc (the first braking element 32) and armature (the second designated components 33) are for reasonably to set gap, locking.So far, the position adjustment of friction disc is complete.
Certainly, the form of self-locking type adjustment part also has multiple, and such as, self-locking type adjustment part is self-locking type spring leaf; Certainly, continue with reference to shown in Fig. 8, self-locking type adjustment part 342 also can comprise: be fixed on the adjustment plate 3421 in rotating shaft 14, and at least two adjustment screws 3422, wherein, the threaded shank of each adjustment screw 3422 wears adjustment plate 3421 and abuts the end face of friction disc 31 away from the side of the first braking element 32.
The concrete quantity of adjustment screw is not limit, can be two, three or more.Be in course of adjustment, turn adjustment screw, friction disc can be made to move to the left side in figure or right side, after adjustment, tighten the nut of adjustment screw.
Above-described embodiment illustrates with single disc-type drg, certainly, with reference to shown in Fig. 9, gearless driving elevator traction machine also can adopt polydisc linkage brake, now in order to effectively prevent the friction between friction disc and brake disc or armature and the situation producing noise occurs, that is in order to effectively reduce the friction noise in plate disc brake 3 between sound parts, as shown in Figure 9, each self-locking adjustment assembly 34 set by friction disc 31 corresponding, self-locking adjustment assembly 34 regulates the position of corresponding friction disc 31 on the axial direction of rotating shaft 14 and locks.Adjustment mode is the same, does not repeat them here.
Further, plate disc brake in the utility model preferably can adopt magnet stopper, the braking of magnet stopper can be realized when needing to brake by power-off or energising, being a kind of automated execution element, the degree of automation of gearless driving elevator traction machine motion can be improved.
It should be noted that at this, above-described embodiment can combination in any as required, thus realizes corresponding function; First spring collar, the second spring collar, the first collar groove, the second collar groove, the first conical suface and the second conical suface, only for distinguishing each parts, are not used for limiting the quantity of these parts.
Be described in detail specific implementation of the present utility model with reference to accompanying drawing above, obviously, those skilled in the art can carry out various change and modification to the utility model and not depart from spirit and scope of the present utility model.Like this, if these amendments of the present utility model and modification belong within the scope of the utility model claim and equivalent technologies thereof, then the utility model is also intended to comprise these change and modification.
Claims (12)
1. a gearless driving elevator traction machine, it is characterized in that, comprise: AC asynchronous speed-regulating motor, traction sheave, drg, and connect described AC asynchronous speed-regulating motor and control described AC asynchronous speed-regulating motor running speed-adjusting and control system, wherein, described AC asynchronous speed-regulating motor comprises: shell, is arranged at the stators and rotators in described shell; Wherein, described stator comprises stator core and stator winding, and described stator winding is fixed on described stator core; Described rotor comprises rotor core, rotor windings and rotating shaft, and described rotor windings is fixed on described rotor core, and described rotor core is fixed in described rotating shaft;
The load side of described traction sheave and described rotating shaft is in transmission connection, and described drg is assemblied on described AC asynchronous speed-regulating motor for the described rotating shaft of braking.
2. gearless driving elevator traction machine as claimed in claim 1, it is characterized in that, described rotor core is the silicon steel plate of stacked setting, and described rotor windings is cast aluminum type rotor windings.
3. gearless driving elevator traction machine as claimed in claim 1, it is characterized in that, described AC asynchronous speed-regulating motor also comprises the bearing be sheathed in described rotating shaft be arranged in described shell, first spring collar of the outer ring of bearing described in axial limiting, and the second spring collar of the inner ring of bearing described in axial limiting, wherein, described shell offers the bearing hole of accommodating described bearing, the first collar groove of accommodating described first spring collar, and described rotating shaft offers the second collar groove of accommodating described second spring collar.
4. gearless driving elevator traction machine as claimed in claim 3, it is characterized in that, described first collar groove has away from the sidewall of described outer ring the first conical suface abutted against with described first spring collar, and described first conical suface reduces along away from the diameter on the direction of described outer ring.
5. gearless driving elevator traction machine as claimed in claim 4, it is characterized in that, the angle of the side end face of described first conical suface and described first spring collar is within the scope of 0 ° ~ 45 °.
6. gearless driving elevator traction machine as claimed in claim 3, it is characterized in that, described second collar groove has away from the sidewall of described inner ring the second conical suface abutted against with described second spring collar, and described second conical suface increases along away from the diameter on the direction of described inner ring.
7. gearless driving elevator traction machine as claimed in claim 6, it is characterized in that, the angle of the side end face of described second conical suface and described second spring collar is within the scope of 0 ° ~ 45 °.
8. the gearless driving elevator traction machine as described in as arbitrary in claim 1 ~ 7, it is characterized in that, described drg is plate disc brake, comprising:
Circumference is fixed at least one friction disc in described rotating shaft;
The both sides of friction disc described in each are respectively arranged with the first braking element and the second braking element, and wherein said first braking element and the second braking element clamp corresponding described friction disc when braking;
And corresponding self-locking adjustment assembly described in each set by friction disc, described self-locking adjustment assembly regulates corresponding friction disc to lock to desired location on the axial direction of described rotating shaft, described desired location be described friction disc respectively and there is between described first braking element and described second braking element the first setting gap and second set gap.
9. gearless driving elevator traction machine as claimed in claim 8, is characterized in that, described self-locking adjustment assembly comprises:
Corresponding annular elastic element described in each set by friction disc, the both sides of described annular elastic element abut shaft shoulder portion and the end face of corresponding described friction disc near described first braking element side of described rotating shaft respectively;
Corresponding friction disc described in each is set and be positioned at the self-locking type adjustment part of the side away from described first braking element.
10. gearless driving elevator traction machine as claimed in claim 9, it is characterized in that, described annular elastic element is spring leaf, described self-locking type adjustment part comprises: be fixed on the adjustment plate in described rotating shaft, and at least two adjustment screws, wherein, the threaded shank adjusting screw described in each wears described adjustment plate and abuts the end face of described friction disc away from the side of described first braking element.
11. gearless driving elevator traction machines as claimed in claim 10, it is characterized in that, described annular elastic element is spring leaf, and described self-locking type adjustment part is self-locking type spring leaf.
12. 1 kinds of elevator drive systems, is characterized in that, comprise terraced case, and as arbitrary in claim 1 ~ 11 as described in gearless driving elevator traction machine, described traction sheave drives described terraced case motion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420628357.XU CN204689319U (en) | 2014-10-27 | 2014-10-27 | A kind of gearless driving elevator traction machine and elevator drive system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420628357.XU CN204689319U (en) | 2014-10-27 | 2014-10-27 | A kind of gearless driving elevator traction machine and elevator drive system |
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| Publication Number | Publication Date |
|---|---|
| CN204689319U true CN204689319U (en) | 2015-10-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420628357.XU Expired - Fee Related CN204689319U (en) | 2014-10-27 | 2014-10-27 | A kind of gearless driving elevator traction machine and elevator drive system |
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| CN (1) | CN204689319U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106276467A (en) * | 2016-08-15 | 2017-01-04 | 郑耿灶 | Accidental movement of elevator cage protection device |
| CN106494960A (en) * | 2016-12-19 | 2017-03-15 | 厦门乃尔电子有限公司 | A kind of lift running safety monitoring and initial failure early warning system and method |
| CN109132810A (en) * | 2017-06-16 | 2019-01-04 | 奥的斯电梯公司 | Rope climbing self-propelled elevator device |
| 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 |
-
2014
- 2014-10-27 CN CN201420628357.XU patent/CN204689319U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106276467A (en) * | 2016-08-15 | 2017-01-04 | 郑耿灶 | Accidental movement of elevator cage protection device |
| CN106494960A (en) * | 2016-12-19 | 2017-03-15 | 厦门乃尔电子有限公司 | A kind of lift running safety monitoring and initial failure early warning system and method |
| CN109132810A (en) * | 2017-06-16 | 2019-01-04 | 奥的斯电梯公司 | Rope climbing self-propelled elevator device |
| US10875743B2 (en) | 2017-06-16 | 2020-12-29 | Otis Elevator Company | Rope-climbing self propelled elevator system |
| US11434107B2 (en) | 2017-06-16 | 2022-09-06 | Otis Elevator Company | Rope-climbing self propelled elevator system |
| 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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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: No gear drive elevator hauler and elevator drag system Effective date of registration: 20160823 Granted publication date: 20151007 Pledgee: Yang Sen Pledgor: BEIJING JUCIYUAN MOTOR Co.,Ltd. Registration number: 2016990000729 |
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| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151007 Termination date: 20211027 |
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| CF01 | Termination of patent right due to non-payment of annual fee |