CN204068445U - A kind of iron core of elevator traction machine and use the traction machine of this iron core - Google Patents
A kind of iron core of elevator traction machine and use the traction machine of this iron core Download PDFInfo
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- CN204068445U CN204068445U CN201420323413.9U CN201420323413U CN204068445U CN 204068445 U CN204068445 U CN 204068445U CN 201420323413 U CN201420323413 U CN 201420323413U CN 204068445 U CN204068445 U CN 204068445U
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- iron core
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- tie rod
- screw
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 52
- 238000004080 punching Methods 0.000 claims abstract description 71
- 238000012797 qualification Methods 0.000 abstract description 2
- 238000010030 laminating Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 238000003466 welding Methods 0.000 description 6
- 230000001276 controlling effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 206010037660 Pyrexia Diseases 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 230000027950 fever generation Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The utility model discloses a kind of iron core of elevator traction machine and use the traction machine of this iron core, wherein, the iron core of elevator traction machine, comprise punching group, be positioned at the end plate at the axial two ends of punching group and be located in the pull bar of punching group, described punching group is provided with axially through tie rod hole, pull bar two ends are threaded hole and pull bar two ends are all positioned at tie rod hole, and described end plate is equipped with screw, and the bar portion of screw stretches in tie rod hole closes with the corresponding threaded holes of pull bar.With the through hole corresponding with tie rod hole position on described end plate, the aperture of this through hole is not more than the aperture of tie rod hole.The utility model, by optimizing the fixed form of each punching in iron core, solves and laminates power inaccuracy and nonadjustable problem, ensures the qualification rate of assembling simultaneously.
Description
Technical field
The utility model relates to elevator technology field, is specifically related to a kind of iron core of elevator traction machine and uses the traction machine of this iron core.
Background technology
Elevator traction machine is the power-equipment of elevator, is elevated for driving car.Elevator traction machine is formed primarily of parts such as motor, brake, shaft coupling, reduction box, traction sheaves, wherein motor can adopt permagnetic synchronous motor, permagnetic synchronous motor comprises the stators and rotators cooperatively interacted, stator comprises stator core and the stator winding around the home on stator core, and rotor comprises rotor core and embeds the several piece magnet steel of rotor core.
Prior art rotor iron core is formed afterwards by mutual stacked the fixing of some rotor punchings, and the fixed form of conventional rotor punching has following several:
(1) the first fixed form as shown in Figure 1, trapezoidal cramp groove 9 is offered at the excircle of rotor punching, after all rotor punchings laminate mutually, in use the cramp 8 of V-type to buckle into cramp groove 9 that rotor punching aligns mutually, after cramp 8 tensioner of V-type, rotor core two ends bending and weld, play the effect of fixing each rotor punching.
This fixed form is adopted to have following shortcoming:
1) between the cramp of V-type and rotor core owing to laminating the impact of stress, can there is air gap, cause the heat-sinking capability of motor to decline, and then have influence on the heat-sinking capability of traction machine, cause the noise of traction machine to become large, vibration is violent, and efficiency reduces simultaneously;
2) in the process laminated at rotor punching, control to laminate power by press, after the welding of cramp tensioner, the earth pressure release of press, owing to being subject to the bounce laminating power, the power of laminating will reduce, and the numerical value reduced can not accurately be measured, cannot check with the power that laminates in traction machine design process, cause theoretical and actual traction machine performance there are differences, and be difficult to analysis and modification;
3) for heavy－duty and powerful main frame, the constant intensity of this fastening piece structure is on the low side, traction machine long-time running less stable;
4) fixed form of cramp is adopted can to retain the protrusion of V-type cramp in the outer ring of rotor core, need to process separately and protrusion is flattened into the outer ring no longer exceeding rotor core, iron core outer ring is likely touched in the process flattened, make the separator between rotor punching damaged, cause the magnetic circuit conducting between stator punching and stator punching, increase iron loss, and produce eddy current loss, reduce the efficiency of traction machine.
(2) the second fixed form as shown in Figure 2, offer dovetail groove 11 in the periphery of rotor punching, each rotor punching places flat steel bar 10 after compressing in dovetail groove, and by flat steel bar 10 and each rotor punching and end plate welding, play the effect of fixing each rotor punching.
This fixed form is except having 1 of cramp form), 2), 3) except bar shortcoming, because the degree of depth of dovetail groove is darker, the area of magnetic circuit will be reduced, make local magnetic close too high, cause local pyrexia to increase, and owing to there is air-gap between dovetail groove and flat steel bar, heat radiation can be caused not enough, make the temperature rise of motor too high, power factor (PF) reduces.
(3) the third fixed form, is circumferentially uniformly distributed from catching groove at rotor punching, directly press-fits, and by realizing the fixing of rotor core from catching groove, and ensures to laminate power.
This fixed form also has 1 of cramp form), 2), 3) bar shortcoming, and, it is only applicable to little load-carrying and low power motor, for heavy－duty and powerful motor, the bounce laminating power can have a strong impact on the coupling mechanism force from catching groove, and the difference laminating power change is increased, and the noise of motor can increase, electric and magnetic oscillation is strengthened, and efficiency reduces.
(4) the 4th kinds of fixed forms as shown in Figure 3, offer the V-type groove 12 for welding at the excircle of rotor punching, rotor punching be in laminate state time, in V-type groove 12, directly carry out saturated welding, after having welded, machine work is carried out to the welding projecting point of iron core excircle.
This fixed form has 1 of cramp form equally), 2), 3), 4) bar shortcoming.
(5) the 5th kinds of fixed forms as shown in Figure 4, are uniformly distributed some rivets 13 in the circumferential of rotor punching, utilize rivet 13 to realize being fixed and clamped of rotor punching.
Adopt this fixed form, when the length of rotor core is long, the riveting intensity of rivet can not be satisfied the demand, and after rivet completes, the two ends of rotor core exist outstanding, cannot be applicable to the fixing of the rotor core of multisection type.
Because stator core and rotor core are formed by stacking by punching, therefore, there is the problem same with rotor core in the fixed form of stator core.
In prior art, the mode that rotor core adopts keyway to coordinate with the connection of rotating shaft usually, namely key is used indirectly to connect, the tangential force of rotating is repeatedly there is in this connected mode for the traction machine of heavy－duty, when using conventional dimension key to carry out interference fits, if there is gap between sunk key, then there is tangential gap, rotor can be caused to there is tangential gap of rotating; If be tight fit between groove and key, then assemble difficulty.
When the dynamic balancing of rotor core is checked, generally can increase dynamic balance weight on the end plate of both sides, this just needs end plate to have certain thickness, and is uniformly distributed enough regions for increasing dynamic balance weight in a circumferential direction.
Utility model content
The utility model provides a kind of iron core of elevator traction machine and uses the traction machine of this iron core, by optimizing the fixed form of each punching in iron core, solving and laminating power inaccuracy and nonadjustable problem, ensure the qualification rate of assembling simultaneously.
A kind of iron core of elevator traction machine, comprise punching group, be positioned at the end plate at the axial two ends of punching group and be located in the pull bar of punching group, described punching group is provided with axially through tie rod hole, pull bar two ends are threaded hole and pull bar two ends are all positioned at tie rod hole, described end plate is equipped with screw, and the bar portion of screw stretches in tie rod hole closes with the corresponding threaded holes of pull bar.
Because stator core and rotor core are overrided to form by punching, therefore, all there is folded pressure controlled problem, the fixed form of iron core described in the utility model is not only applicable to rotor core, is applicable to stator core too.Of the present utility model describe in as indicated without special, iron core general reference stator core or rotor core, corresponding stator punching or rotor punching are made a general reference in punching.
Punching group comprises and forms all punchings of iron core, carries out the fixing of punching position, and screwed in the position of screwed hole by adjustment screw simultaneously by the screw of the pull bar and pull bar two ends that run through punching group, regulates to laminate power between punching.
Because the size of iron core limit, the size of pull bar is also less, according to the fit system of pull bar and nut, namely end plate is extended at the two ends of pull bar, and when the two ends threaded engagement of pull bar is used for the nut of fixing punching, screw thread due to pull bar two ends has smaller thread, thread is in the assembling process of reality, very easily there is damage, and this damage is difficult to again find under normal circumstances, only have when nut can not coordinate with pull bar well screw time, just can expose the damage problem of thread, this greatly can reduce the packaging efficiency of iron core.
The form that screw thread is built-in is adopted in the utility model, namely screwed hole is set at the two ends of pull bar, screw thread in screwed hole is not easy in assembling process because the reasons such as shock are damaged, ensure that the packaging efficiency of iron core, meanwhile, by controlling tightening torsion and can accurately controlling to laminate power between punching of screw.
With the through hole corresponding with tie rod hole position on described end plate, the aperture of this through hole is not more than the aperture of tie rod hole.
On end plate, the aperture of through hole is unsuitable excessive, and the through hole of larger aperture will cause increasing the weight of of leakage field phenomenon, and the power factor of motor is reduced.The pore size maxima of through hole can adopt the aperture of tie rod hole, and when through hole is identical with the aperture of tie rod hole, pull bar can be extracted out easily from iron core, and does not need to remove end plate.
As preferably, between the both ends of the surface of described pull bar and the end plate of respective side, leave gap.Namely also the spacing of the most vicinal face of two end plates is greater than the length of pull bar, and gap is the power that laminates for the ease of regulating between punching, prevents the two ends of pull bar with end plate because direct rigidity abuts, causes the non-adjustable of screw tightened position.
Set gap is very little, and the distance between the end face of pull bar and the end plate of respective side is 1 ~ 3mm.In assembling process, the position of pull bar is not necessarily in the centre position of tie rod hole just, but certain position skew may be there is, namely a certain side end panel is more partial to, therefore, the distance between the end face of described pull bar and the end plate of respective side is mean value (mean value of the spacing of the end plate of pull bar both ends of the surface and respective side).
The effect of described pull bar is the position of each punching in fixed punch sheet group, therefore, the quantity of pull bar should take into account the convenience that the reliability of fixing punching and adjustment laminate power, preferably, the quantity of described tie rod hole is 6 ~ 10, and in each tie rod hole, correspondence arranges a pull bar.All tie rod holes are uniformly distributed around the circumferential of punching group.
In order to ensure screw and the reliability be threaded, preferably, screw and the length of corresponding corresponding threaded holes conjunction part are at least 1.5 times of shank of screw portion diameter.Further preferably, screw and the length of corresponding corresponding threaded holes conjunction part are 2 ~ 3 times of shank of screw portion diameter.
Preferably, described screw is flange face screw, and its flange face and end plate abut against.Rely on flange face exert pressure to end plate, and then adjustment punching laminate power.
When iron core is rotor core, need the dynamic balancing adjusting iron core, preferably, described screw is arranged with dynamic balance weight, and dynamic balance weight is between end plate and the flange face of screw.
The screw at pull bar two ends can be dismantled repeatedly, when needing to install dynamic balance weight additional, screw is removed, on screw after sheathed dynamic balance weight, again screwed in the screwed hole of pull bar by screw, by tightening torsion, what accurately can control the punching after screw reset laminates power, make before and after additional dynamic balance weight, punching can keep identical and laminate power.
As preferably, dynamic balance weight is in the gap of pull bar two ends and respective side end plate.
Dynamic balance weight comprises the head of afterbody and expansion, dynamic balance weight is also provided with the installing hole of through afterbody and head, described afterbody is in the gap of pull bar two ends and respective side end plate, and described head is between end plate and the flange face of bolt, the bar portion penetrating mounting holes of described bolt.Adopt and fix dynamic balance weight in this way, can limit the position of dynamic balance weight better, dynamic balance weight not easily rocks in motion process.
The utility model additionally provides a kind of elevator traction machine, the motor comprising traction sheave and drive traction sheave to rotate, the iron core described in the rotor core of described motor or stator core adopt.
When iron core is rotor core, the inner periphery of rotor punching is provided with protuberance radially, protuberance in all rotor punching radial directions aligns mutually, form boss, the rotating shaft of motor is provided with corresponding with this boss and that side is open keyway, boss is directly snapped in the connection namely realizing rotor core and rotating shaft in keyway.This connected mode can solve keyway in prior art and be not easy to realize friction tight problem.
When iron core is stator core, the excircle of stator punching arranges protuberance radially, protuberance in all rotor punching radial directions aligns mutually, form boss, support is provided with corresponding with this boss and that side is open keyway, boss is directly snapped in the connection namely realizing stator core and support in keyway.
The utility model compared with prior art, has following beneficial effect:
(1) what strictly can control punching laminates power, simultaneously can need carry out adjustment test to the power of laminating according to research, finds suitable to laminate example to improve the performance of motor, reduces the problems such as the electromagnetic noise because laminating power generation.
(2) when manufacturing the punching of iron core, namely processing the boss matched with the rotating shaft of motor or support, can match with the rotating shaft of motor or support easily, solve heavy－duty motor assembling difficulty or there is tangential problem of rotating.
(3) when manufacturing the punching of iron core, namely considering the follow-up needs coordinated with rotating shaft or the support of motor, follow-up iron core processing can be reduced, the iron loss avoiding iron core too much and unnecessary waste.
(4) utilize the screw controlling the power that laminates to fix dynamic balance weight, can accurately keep the constant of the power that laminates.
Accompanying drawing explanation
Fig. 1 adopts cramp form to fix the structural representation of punching in prior art;
Fig. 2 adopts flat steel bar to fix the structural representation of punching in prior art;
Fig. 3 adopts the form of directly welding to fix the structural representation of punching in prior art;
Fig. 4 adopts rivet to fix the structural representation of punching in prior art;
The schematic cross-section of the iron core of Fig. 5 the utility model elevator traction machine;
Fig. 6 is A portion enlarged drawing in Fig. 5;
Fig. 7 is the schematic diagram that the rotor core of the utility model elevator traction machine installs dynamic balance weight additional;
Fig. 8 is the schematic cross-section that the rotor core of the utility model elevator traction machine installs dynamic balance weight additional;
Fig. 9 is the schematic diagram that the rotor core of the utility model elevator traction machine coordinates with the rotating shaft of motor.
In figure: 1, screw; 2, pull bar; 3, boss; 4, end plate; 5, dynamic balance weight; 6, keyway; 7, rotating shaft; 8, cramp; 9, cramp groove; 10, flat steel bar; 11, dovetail groove; 12, V-type groove; 13, rivet.
Embodiment
Below in conjunction with accompanying drawing, to the iron core of the utility model elevator traction machine and use the traction machine of this iron core to be described in detail.
As shown in Figure 5, Figure 6, a kind of iron core of elevator traction machine, comprise punching group, be positioned at the end plate 4 at the axial two ends of punching group and be located in the pull bar 2 of punching group, punching group is provided with axially through tie rod hole, pull bar 2 two ends are threaded hole and pull bar 2 two ends are all positioned at tie rod hole, end plate 4 is equipped with screw 1, the bar portion of screw 1 stretches in tie rod hole closes with the corresponding threaded holes of pull bar 2.
Insert in tie rod hole for the ease of pull bar 2, and take out by tie rod hole, the internal diameter of tie rod hole is slightly larger than the external diameter of pull bar 2.
With the through hole corresponding with tie rod hole position on end plate 4, the aperture of through hole is less than the aperture of tie rod hole.As shown in Figure 6, leave gap between the both ends of the surface of pull bar 2 and the end plate 4 of respective side, namely in Fig. 6, the length of L1 is 1 ~ 3mm.
Screw 1 and the length of corresponding corresponding threaded holes conjunction part are 3 times of screw 1 bar portion diameter (because thread is very little, ignoring the height of thread), and namely in Fig. 6, the length of L2 is 3 times of L3.Screw 1 is flange face screw 1, and its flange face and end plate 4 abut against.
As shown in Figure 9, the quantity of tie rod hole is 8, and all tie rod holes are uniformly distributed around the circumferential of punching group, and in each tie rod hole, correspondence arranges a pull bar 2.
As shown in Figure 7, screw 1 is arranged with dynamic balance weight 5, dynamic balance weight 5 is between the flange face of end plate 4 and screw 1.
As shown in Figure 8, dynamic balance weight 5 is in the gap of pull bar 2 two ends and respective side end plate 4.Dynamic balance weight 5 comprises the head of afterbody and expansion, dynamic balance weight 5 is also provided with the installing hole of through afterbody and head, afterbody is in the gap of pull bar 2 two ends and respective side end plate 4, and head is between end plate 4 and the flange face of screw, the bar portion penetrating mounting holes of screw.When adopting this mounting means, the bar portion diameter of screw 1 just can not be set to the same with the diameter of through hole, but the space of inserting dynamic balance weight 5 afterbody will be reserved, the diameter of through hole can be set to the equal diameters with tie rod hole, in dynamic balance weight 5, the diameter of installing hole and the bar portion diameter of screw 1 adapt.
The mode that rotor core matches with the rotating shaft of motor as shown in Figure 9, the inner periphery of rotor punching is provided with protuberance radially, protuberance in all rotor punching radial directions aligns mutually, form boss 3, the rotating shaft of motor is provided with corresponding with this boss 3 and that side is open keyway 6, boss 3 is directly snapped in the connection namely realizing rotor core and rotating shaft 7 in keyway.Stator core was repeated no more with coordinating of support.
The utility model additionally provides a kind of elevator traction machine, and the motor comprising traction sheave and drive traction sheave to rotate, the rotor core of motor or stator core adopt iron core described above.
Claims (10)
1. the iron core of an elevator traction machine, comprise punching group, be positioned at the end plate at the axial two ends of punching group and be located in the pull bar of punching group, it is characterized in that, described punching group is provided with axially through tie rod hole, pull bar two ends are threaded hole and pull bar two ends are all positioned at tie rod hole, described end plate is equipped with screw, and the bar portion of screw stretches in tie rod hole closes with the corresponding threaded holes of pull bar.
2. the iron core of elevator traction machine as claimed in claim 1, it is characterized in that, with the through hole corresponding with tie rod hole position on described end plate, the aperture of this through hole is not more than the aperture of tie rod hole.
3. the iron core of elevator traction machine as claimed in claim 1, is characterized in that, leave gap between the both ends of the surface of described pull bar and the end plate of respective side.
4. the iron core of elevator traction machine as claimed in claim 1, it is characterized in that, the quantity of described tie rod hole is 6 ~ 10, and in each tie rod hole, correspondence arranges a pull bar.
5. the iron core of elevator traction machine as claimed in claim 4, it is characterized in that, all tie rod holes are uniformly distributed around the circumferential of punching group.
6. the iron core of elevator traction machine as claimed in claim 1, it is characterized in that, screw and the length of corresponding corresponding threaded holes conjunction part are at least 1.5 times of shank of screw portion diameter.
7. the iron core of elevator traction machine as claimed in claim 1, it is characterized in that, described screw is flange face screw, and its flange face and end plate abut against.
8. the iron core of elevator traction machine as claimed in claim 7, it is characterized in that, described screw is arranged with dynamic balance weight, and dynamic balance weight is between end plate and the flange face of screw.
9. the iron core of elevator traction machine as claimed in claim 8, it is characterized in that, dynamic balance weight is in the gap of pull bar two ends and respective side end plate.
10. an elevator traction machine, the motor comprising traction sheave and drive traction sheave to rotate, is characterized in that, the rotor core of described motor or stator core adopt as arbitrary in claim 1 ~ 9 as described in iron core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420323413.9U CN204068445U (en) | 2014-06-17 | 2014-06-17 | A kind of iron core of elevator traction machine and use the traction machine of this iron core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420323413.9U CN204068445U (en) | 2014-06-17 | 2014-06-17 | A kind of iron core of elevator traction machine and use the traction machine of this iron core |
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| Publication Number | Publication Date |
|---|---|
| CN204068445U true CN204068445U (en) | 2014-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420323413.9U Expired - Lifetime CN204068445U (en) | 2014-06-17 | 2014-06-17 | A kind of iron core of elevator traction machine and use the traction machine of this iron core |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104113148A (en) * | 2014-06-17 | 2014-10-22 | 浙江西子富沃德电机有限公司 | Iron core of elevator traction machine and traction machine by using iron core |
-
2014
- 2014-06-17 CN CN201420323413.9U patent/CN204068445U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104113148A (en) * | 2014-06-17 | 2014-10-22 | 浙江西子富沃德电机有限公司 | Iron core of elevator traction machine and traction machine by using iron core |
| CN104113148B (en) * | 2014-06-17 | 2016-09-28 | 浙江西子富沃德电机有限公司 | The iron core of a kind of elevator traction machine and use the traction machine of this iron core |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141231 |