CN104953727A - Motor without casing as well as traction machine adopting motor without casing - Google Patents
Motor without casing as well as traction machine adopting motor without casing Download PDFInfo
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- CN104953727A CN104953727A CN201510362800.2A CN201510362800A CN104953727A CN 104953727 A CN104953727 A CN 104953727A CN 201510362800 A CN201510362800 A CN 201510362800A CN 104953727 A CN104953727 A CN 104953727A
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- end cap
- stator core
- motor
- inorganic shell
- casing
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Abstract
The invention discloses a motor without a casing as well as a traction machine adopting the motor without the casing. The motor without the casing comprises a stator core, wherein axially through hinge pins are arranged on the stator core, two ends of each hinge pin extend out of the stator core, and end covers are fixed at extending parts. The motor is characterized in that positioning steps are arranged at parts, extending out of the stator core, of the hinge pins, and the end covers are propped against the corresponding positioning steps and fixed on the hinge pins through lock nuts. The positioning steps adopt shaft shoulder structures. The motor without the casing is simple in structure, convenient to assemble and low in cost, the coaxiality of a stator and a rotor is easy to guarantee, and the gearless traction machine is compact in structure, small in size, low in weight and capable of meeting requirements of elevators without machine rooms or elevators provided with small machine rooms.
Description
Technical field
The present invention relates to technical field of motors, be specifically related to a kind of inorganic shell motor and use the traction machine of this inorganic shell motor.
Background technology
Inorganic shell motor comprises the stators and rotators cooperatively interacted, and be positioned at left end cap and the right end cap at the axial two ends of stators and rotators, the two ends of stators and rotators coordinate with left end cap and right end cap respectively.
Stator comprises stator core 2, and the stator winding around the home on stator core 2; Rotor comprises rotor core 3, and the rotor windings around the home on rotor core 3.
Inorganic shell electric machine structure of the prior art is roughly divided into following two kinds:
(1) the first structure is as Fig. 1, Fig. 2, shown in Fig. 3, the axial two ends of stator core 2 are welded with first member plate and right end plate respectively, difference Vehicle Processing two annular stoppers 6 on the first member plate and right end plate of stator core 2, guarantee seam 6 is coaxial with stator core 2, four through holes are evenly offered along the circumferential of stator core 2, left end cap 1 and right end cap 4 match respectively at the seam 6 in stator core 2 first member plate and right end plate, realize the radial location of left end cap 1 and right end cap 4, then utilize and fix left end cap 1 and right end cap 4 through four tightening bolts 5 of through hole and the locking nut that is set in tightening bolt 5 two ends.
In this structure, because the first member plate of stator core 2 and right end plate need to process two seams 6 respectively, and two seams 6 need guarantee coaxial with stator core 2, not only complex process, be difficult to control, and stator core 2 has a rebound during distortion, also not easily ensure the alignment of seam 6 and stator core 2.
(2) the second structure is as shown in Fig. 4, Fig. 5, Fig. 6, left end cap 1 and right end cap 4 circumferentially evenly offer four location holes, four through holes are evenly offered along the circumferential of stator core 2, each through hole internal fixtion wears an alignment pin 7, left end cap 1 and right end cap 4 coordinate with four alignment pins 7 of stator core 2 and realize radial location, fix left end cap 1 and right end cap 4 by the locking nut at alignment pin 7 two ends.
In this structure, first member plate and right end plate and stator core 2 fit, and need guarantee four alignment pins 7 to have higher perpendicularity with two end faces 8 of stator core 2, and the guarantee of perpendicularity with laminate with welding procedure all relevant, manufacture craft is difficult to control.
Along with the develop rapidly in elevator market, also more and more higher to the requirement of hoistway utilance, the not machine-roomless lift of shaft space occupation or minimum shaft space occupation and the demand rapid growth of elevator used in small machine room, permanent-magnet synchnorous gearless dragging machine is in the market large due to volume and weight, can not satisfy the demands.
In prior art, when adopting alignment pin to carry out end cap radial direction location, the first member plate of alignment pin and stator core and right end plate is needed to keep higher perpendicularity, to meet end cap and stator core leans, and keep perpendicularity, the technique to laminating and welding then is needed strictly to control, the carrying out not easily produced.
In the present invention, between end cap and stator core not directly against, but there is certain spacing, do not require the perpendicularity that the end face of bearing pin and stator core keeps higher, positioning step on bearing pin and end plate directly against, the perpendicularity that positioning step is adding man-hour easily controls, even and if there is deviation in the perpendicularity of positioning step, for stator core without any impact, impact for end cap is also limited, and the interval between stator core and end cap also can weaken the impact that deviation appears in positioning step perpendicularity further.
Distance between stator core and the end cap of respective side should be suitable, excessive spacing can cause the impurity such as dust to enter motor internal, too small spacing can cause to occur between stator core and end cap local against situation, to make on stator core the power that laminates everywhere occur uneven.
As preferably, the distance between stator core and the end cap of respective side is 0.4 ~ 1.0mm.Further preferably, the distance between stator core and the end cap of respective side is 0.4 ~ 0.6mm.
The face that described positioning step matches with end cap can adopt various forms, and for the ease of processing and assembling, preferably, the position that described end cap matches with positioning step is planar structure.
Described bearing pin is four.Be evenly distributed on the basic circle centered by stator core axle, stator core is provided with four through holes corresponding with bearing pin.Four bearing pins are perpendicular to the same datum level of stator core axle.
The two ends of described bearing pin are provided with screw thread, are matched with locking nut by this screw thread.
In order to ensure the facility of processing and assembling, preferably, end cap comprises the left end cap and right end cap that are distributed in the axial both sides of stator core, and left end cap is equal with the distance of stator core respective side with right end cap.
In the present invention, left end cap and right end cap are a pair relative concept, and be only the end cap distinguishing stator core both sides, namely side is left end cap, then opposite side is right end cap, and non-specific specifies certain side to be left end cap.
Present invention also offers a kind of traction machine, the inorganic shell motor described in employing.Left end cap and the right end cap of inorganic shell motor are provided with bearing chamber, are provided with the bearing coaxial with stator core in bearing chamber, and the rotating shaft of motor is rotatably assorted by bearing and left end cap and right end cap, and left end cap is fixedly connected with the base of traction machine with right end cap.
Brake is fixed on right end cap, and the brake disc on brake and the rotating shaft of motor are by spline fitted, and the braking surface effect on brake disc and right end cap, plays the effect that axle is stopped.Brake inside is provided with encoder.
Traction machine provided by the invention compared with prior art, has the following advantages:
(1) the present invention is inorganic shell permanent-magnet synchnorous gearless dragging machine, compact conformation, and volume is little, lightweight, and cost is low, and good heat dissipation is safe and reliable, good looking appearance, can meet the demand of machine room or elevator used in small machine room.
(2) stator core in traction machine is fixedly connected with by bearing pin with between left end cap and right end cap, and stator core does not need to fix with support, assembles easy to maintenance.
(3) traction machine brake is fixed on right end cap, and brake disc, by acting on mutually with right end cap braking surface, realizes the braking to machine shaft.
Summary of the invention
The invention provides a kind of inorganic shell motor, structure is simple, easy to assembly, with low cost, and is easy to the alignment ensureing stators and rotators.
A kind of inorganic shell motor, comprise stator core, described stator core is provided with axially through bearing pin, bearing pin two ends are stretched out stator core and be fixed with end cap on extending areas, the position that described bearing pin stretches out stator core is provided with positioning step, and described end cap and corresponding positioning step are leant and be fixed on bearing pin by locking nut.
Described stator core is provided with along the circumferential equally distributed through hole of stator core, and described bearing pin passes through hole and fixes with stator core.The two ends of every root bearing pin are respectively equipped with a positioning step, and each positioning step leans with corresponding end cap, realize axis and the radial location of end cap.
Compared to existing technology, the first member plate and right end plate of stator core are offered the seam of annular, realize the radial location of end plate, when first member plate and right end plate offer seam, need ensure that the seam of annular is coaxial with stator core, processing technology more complicated, and in the present invention, bearing pin arranges positioning step does not need guarantee coaxial with stator core, processing technology is easy to control and realize, even and if stator core generation rebound deformation, also can not impact positioning step.
As preferably, described positioning step is shaft shoulder structure.Namely on bearing pin, arrange different three sections of diameter, and the diameter of interlude is greater than two sections of two ends, adjacent two sections of joining places form described positioning step.
As preferably, between stator core and the end cap of respective side, there is interval.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the first inorganic shell motor in prior art;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is the schematic diagram of stator core in the first inorganic shell motor in prior art;
Fig. 4 is the schematic diagram of the second inorganic shell motor in prior art;
Fig. 5 is the left view of Fig. 4;
Fig. 6 is the schematic diagram of stator core in the second inorganic shell motor in prior art;
Fig. 7 is the schematic diagram of inorganic shell motor of the present invention;
Fig. 8 is the left view of Fig. 7;
Fig. 9 is the schematic diagram of stator core in inorganic shell motor of the present invention;
Figure 10 is the schematic diagram of traction machine of the present invention;
Figure 11 is the left view of Figure 10.
In figure: 1, left end cap; 2, stator core; 3, rotor core; 4, right end cap; 5, tightening bolt; 6, seam; 7, alignment pin; 8, end face; 9, bearing pin; 10, the shaft shoulder; 11, traction sheave; 12, brake disc; 13, brake; 14, encoder; 15, support.
Embodiment
Below in conjunction with accompanying drawing, to inorganic shell motor of the present invention and use the traction machine of this inorganic shell motor to be described in detail.
As shown in Figure 7, inorganic shell motor provided by the invention, comprises the stators and rotators cooperatively interacted, and the left side of stators and rotators is provided with left end cap 1, and the right side of stators and rotators is provided with right end cap 4.
Stator comprises stator core 2 and the stator winding around the home on stator core 2; Rotor comprises rotor core 3 and the rotor windings around the home on rotor core 3.
Stator core 2 is provided with axially through through hole, and each through hole internal fixtion bearing pin 9, as shown in Figure 8, bearing pin 9 is four, is uniformly distributed around the circumferential of stator core 2, and bearing pin 9 is arranged near the excircle of stator core 2.
As shown in Fig. 7, Fig. 9, stator core 2 is extended at the two ends of bearing pin 9, and the position of stretching out stator core 2 in every one end is provided with the shaft shoulder 10 (i.e. positioning step), left end cap 1 and right end cap 4 are located on bearing pin 9, and lean with the corresponding shaft shoulder 10, the two ends threaded engagement of bearing pin 9 has locking nut, and left end cap 1 and right end cap 4 are clamped between the shaft shoulder 10 and locking nut, realize axial location.
The face that left end cap 1 and right end cap 4 and the shaft shoulder 10 lean is plane, and left end cap 1 and right end cap 4 realize radial location by bearing pin 9.
Between stator core 2 and the end cap of respective side, there is interval, the spacing of left end cap 1 and stator core 2 respective side, equal with the spacing of stator core 2 respective side with right end cap 4, the distance between stator core 2 and the end cap of respective side is 0.5mm (i.e. H=0.5mm in Fig. 7).
As shown in Figure 10, traction machine provided by the invention comprises, and inorganic shell motor, the traction sheave 11 be connected with the rotating shaft of inorganic shell motor and the brake 13 for braking inorganic shell motor, be provided with encoder 14 in brake 13.
Traction sheave 11 is positioned at the left side of left end cap 1, and brake 13 is in the right side of right end cap 4, and traction sheave 11 is connected by key with the rotating shaft of motor, the rotating shaft of motor is fixed with brake disc 12, and brake disc 12 acts on mutually with the braking surface of right end cap 4, realizes the braking of motor.
As shown in figure 11, left end cap 1 is fixedly connected with the support 15 of traction machine with right end cap 4, realizes the firm of traction machine.
The present invention is only described in detail with regard to a most preferred embodiment of the present invention; but the restriction to other modes of the invention process can not be interpreted as; everyly further improve and similar or identical scheme on basis of the present invention, being all considered as is the scope that request of the present invention is protected.
Claims (8)
1. an inorganic shell motor, comprise stator core, described stator core is provided with axially through bearing pin, bearing pin two ends are stretched out stator core and be fixed with end cap on extending areas, it is characterized in that, the position that described bearing pin stretches out stator core is provided with positioning step, and described end cap and corresponding positioning step are leant and be fixed on bearing pin by locking nut.
2. inorganic shell motor as claimed in claim 1, it is characterized in that, described positioning step is shaft shoulder structure.
3. inorganic shell motor as claimed in claim 1, is characterized in that having interval between stator core and the end cap of respective side.
4. inorganic shell motor as claimed in claim 3, it is characterized in that, the distance between stator core and the end cap of respective side is 0.4 ~ 1.0mm.
5. inorganic shell motor as claimed in claim 1, it is characterized in that, the position that described end cap matches with positioning step is planar structure.
6. inorganic shell motor as claimed in claim 1, it is characterized in that, described bearing pin is four.
7. inorganic shell motor as claimed in claim 3, is characterized in that, end cap comprises the left end cap and right end cap that are distributed in the axial both sides of stator core, and left end cap is equal with the distance of stator core respective side with right end cap.
8. a traction machine, is characterized in that, adopt as arbitrary in claim 1 ~ 7 as described in inorganic shell motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510362800.2A CN104953727B (en) | 2015-06-24 | 2015-06-24 | A kind of inorganic shell motor and the traction machine using the inorganic shell motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510362800.2A CN104953727B (en) | 2015-06-24 | 2015-06-24 | A kind of inorganic shell motor and the traction machine using the inorganic shell motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104953727A true CN104953727A (en) | 2015-09-30 |
| CN104953727B CN104953727B (en) | 2018-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510362800.2A Active CN104953727B (en) | 2015-06-24 | 2015-06-24 | A kind of inorganic shell motor and the traction machine using the inorganic shell motor |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106059204A (en) * | 2016-05-31 | 2016-10-26 | 宁波谷达机电有限公司 | Usage structure for encoder and rotor shaft of traction machine |
| CN111566901A (en) * | 2018-01-11 | 2020-08-21 | Abb瑞士股份有限公司 | Electric machine |
| CN111953115A (en) * | 2019-05-14 | 2020-11-17 | 日本电产株式会社 | Motor unit |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0702447A2 (en) * | 1994-08-26 | 1996-03-20 | Licentia Patent-Verwaltungs-GmbH | Housingless electric motor with bearing shields |
| CN201336588Y (en) * | 2008-12-30 | 2009-10-28 | 中国电子科技集团公司第二十一研究所 | Shellless brushless DC motor |
| CN203219010U (en) * | 2012-12-11 | 2013-09-25 | 重庆市科诚电机制造有限公司 | Stator iron core for mid-small sized alternative-current motor |
| CN204794385U (en) * | 2015-06-24 | 2015-11-18 | 浙江西子富沃德电机有限公司 | No casing motor and use hauler of this no casing motor |
-
2015
- 2015-06-24 CN CN201510362800.2A patent/CN104953727B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0702447A2 (en) * | 1994-08-26 | 1996-03-20 | Licentia Patent-Verwaltungs-GmbH | Housingless electric motor with bearing shields |
| CN201336588Y (en) * | 2008-12-30 | 2009-10-28 | 中国电子科技集团公司第二十一研究所 | Shellless brushless DC motor |
| CN203219010U (en) * | 2012-12-11 | 2013-09-25 | 重庆市科诚电机制造有限公司 | Stator iron core for mid-small sized alternative-current motor |
| CN204794385U (en) * | 2015-06-24 | 2015-11-18 | 浙江西子富沃德电机有限公司 | No casing motor and use hauler of this no casing motor |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106059204A (en) * | 2016-05-31 | 2016-10-26 | 宁波谷达机电有限公司 | Usage structure for encoder and rotor shaft of traction machine |
| CN111566901A (en) * | 2018-01-11 | 2020-08-21 | Abb瑞士股份有限公司 | Electric machine |
| CN111953115A (en) * | 2019-05-14 | 2020-11-17 | 日本电产株式会社 | Motor unit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104953727B (en) | 2018-04-20 |
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