CN202364035U - Motor used for elevator tractor - Google Patents
Motor used for elevator tractor Download PDFInfo
- Publication number
- CN202364035U CN202364035U CN2011205089672U CN201120508967U CN202364035U CN 202364035 U CN202364035 U CN 202364035U CN 2011205089672 U CN2011205089672 U CN 2011205089672U CN 201120508967 U CN201120508967 U CN 201120508967U CN 202364035 U CN202364035 U CN 202364035U
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- motor shaft
- rotor assembly
- load
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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The utility model provides a motor used for an elevator tractor. The motor comprises a motor shaft, a motor base assembly, a stator assembly, a rotor assembly and a load output mechanism, wherein the stator assembly is fixed on the motor base assembly by virtue of a fixed support, the motor shaft is connected with the load output mechanism and the rotor assembly, primary load bearings are arranged at the two sides of the load output mechanism, and the primary load bearings comprise a first bearing pack and a second bearing pack; and the rotor assembly is arranged at one end of the motor shaft, the primary load bearings are arranged at one side of the rotor assembly, the motor shaft at the other side of the rotor assembly is provided with an auxiliary bearing which is used for supporting the motor shaft in an auxiliary manner when load of the motor is increased, the auxiliary bearing is fixedly arranged at a bearing hole on an end cover base by virtue of a bearing end cover, and the end cover base is fixedly connected with the motor base assembly. The motor used for the elevator tractor disclosed by the utility model has simple and feasible structure and process, structural design of the motor shaft and the primary load bearings can be optimized, redundance of safety coefficient can be reduced, cost can be reduced, and operating performance of a complete machine can be improved.
Description
Technical field
The utility model relates to motor, relates in particular to a kind of elevator traction machine and uses motor.
Background technology
At present; The big powerful elevator traction machine of load has anodontia traction machine and the branch that the tooth traction machine is arranged; No matter tooth traction machine or anodontia traction machine are arranged; Output mechanism traction sheave wherein is because directly bear big load, and the simple beam structure of therefore general employing double bracing, actuating unit motor rotor assembly then adopt cantilever to install.Be depicted as the structural representation of anodontia traction machine like accompanying drawing 1; Traction sheave 16 is arranged on the traction machine centre position; Motor shaft 1 and 16 coaxial connections of traction sheave are positioned on the motor shaft 1 of traction sheave 16 both sides and respectively are provided with the clutch shaft bearing group 2 and second bearing group 6, and traction sheave 16 is the direct output mechanisms of motor; The end that rotor assembly 9 is arranged at motor shaft 1 is positioned at the same side of the clutch shaft bearing group 2 and second bearing group 6, is cantilever design and installs.In the tooth traction machine is arranged; Particularly permanent magnetism has in the tooth traction machine, and motor shaft connects with the output gear wheels are coaxial, its effect with anodontia traction machine in traction sheave 16 identical; The output gear wheels are direct output mechanisms of motor; Respectively distribute in the gear train both sides one or one group of bearing, motor are arranged at the shaft extension ends of two or two groups of bearing one sides, equally also are to be cantilever design to install.
In above-mentioned traction machine structure; Increase along with motor power (output); Motor volume and quality increase, rotating speed increases, and the moment of inertia of motor also increases, because parts such as axle exist processing and rigging error; Motor air gap is inhomogeneous, in motor operation course, also obviously increases because of electromagnetic factors etc. produces unilateral magnetic force etc.Because motor is the structure that cantilever is installed; Therefore above-mentioned unfavorable factor usually is difficult to be limited or eliminate; Even can the lever principle through axle amplify and act in bearing and the whole traction system; Will cause the complete machine abnormal sound and the vibration in when operation like this, influence the service life of traction machine bearing and complete machine.
If the motor rotor assembly adopts the structure of simply supported beam; Then need bearings be set through being uniformly distributed with at motor shaft end; Three groups of bearings points are just arranged on same motor shaft so, wait higher processing and the assembly precision of parts if can not guarantee axle, then above-mentioned three groups of bearings can be interfered in assembling each other; The mutual interference of meeting phase has not only increased cost but also can not guarantee design performance in the running.Therefore, in existing this type of traction machine electric motor structure, do not adopt the structure of coaxial three groups of bearings, the structure that generally still adopts motor rotor assembly cantilever type to install.But, adopt the performance of the traction machine of cantilever type installation in order to guarantee above-mentioned motor rotor assembly, must need to improve the processing of parts and the precision of installation, must leave big design safety factor (DSF) redundancy to axle and bearing etc., thereby increase product cost.
The utility model content
The purpose of the utility model is to provide a kind of and operates steadily, cost is low, the simple elevator traction machine of technology is used motor, to solve the problem that prior art exists.
To achieve these goals; The utility model provides a kind of elevator traction machine to use motor; Comprise motor shaft, support group, stator module, rotor assembly and load output mechanism, stator module is fixed on the support group through the stator fixed support, is connected with load output mechanism and rotor assembly on the motor shaft respectively; Said load output mechanism both sides are provided with main main bearing, and said main main bearing comprises the clutch shaft bearing group and second bearing group; Rotor assembly is arranged at an end of motor shaft; Main main bearing is positioned at a side of rotor assembly; The motor shaft of said rotor assembly opposite side is provided with when motor load increases the auxiliary bearing in order to the supplemental support motor shaft; Said auxiliary bearing is fixedly mounted on the dead eye place on the end cap seat by bearing (ball) cover, and the end cap seat is fixedly linked in the support group.
Said load output mechanism is output gear component or traction sheave.
The dead eye of said auxiliary bearing outer ring and end cap seat adopts matched in clearance, and auxiliary bearing inner ring and motor shaft adopt transition or interference fit; Perhaps said auxiliary bearing Internal and external cycle all adopts matched in clearance.
Said auxiliary bearing Internal and external cycle is transition or interference fit, and the bearing clearance grade is selected 3 groups or 3 groups of above bearings
for use.
The utility model is owing to be provided with three groups of bearings and comprise 1 group of 2 groups of main main bearings and auxiliary bearing through coaxial on motor shaft; Wherein the clutch shaft bearing group and second bearing group are main main bearings; Be the main load support of motor output loading, the auxiliary bearing of motor opposite side as the supplemental support of motor in order to the supplemental support motor shaft.The motor rotor assembly is stressed when motor load increases is " simply supported beam " stress; Thereby improved the stress of motor shaft; Also limited simultaneously the further aggravation of motor shaft circular runout and distortion, and then restrictions motor aggravates further because of the unfavorable factors such as unilateral magnetic force of electromagnetism and mechanism's factor generation.Like this, auxiliary bearing can significantly limit these adverse factors generations on structure, improve the service conditions of main main bearing and system, improves system performance.The elevator traction machine of the utility model can be optimized the structural design of motor shaft and main main bearing with electric motor structure and technology simple possible, reduces the coefficient of safety redundancy, reduces cost, and improves the runnability of complete machine.
Description of drawings
Fig. 1 is the structural representation of the elevator traction machine of prior art with motor;
Fig. 2 is the cross-sectional view of the utility model elevator traction machine with motor.
Among the figure: 1, motor shaft; 2, clutch shaft bearing group; 3, first circlip; 4, output gear component; 5, support group; 6, second bearing group; 7, stator fixed support; 8, stator module; 9, rotor assembly; 10, key; 11, second circlip; 12, end cap seat; 13, auxiliary bearing; 14, bearing (ball) cover; 15, screw; 16, traction sheave.
Embodiment
Set forth the utility model content and embodiment in detail below in conjunction with accompanying drawing 1-2, and the useful technique effect of the utility model is elaborated.
Understand for the purpose, technical scheme and the useful technique effect that make the utility model are more clear, the technology contents and the embodiment of the utility model is described in further detail below in conjunction with accompanying drawing.Should be understood that the embodiment of describing in this specification only is in order to explain the utility model, is not in order to limit the utility model.
, be the cross-sectional view of the utility model elevator traction machine please with motor with reference to shown in the accompanying drawing 2.Said elevator traction machine comprises motor shaft 1, support group 5, stator module 8, rotor assembly 9 and load output mechanism with motor.On motor shaft 1, be connected with load output mechanism and rotor assembly 9 respectively; Said in the present embodiment load output mechanism is an output gear component 4; Said output gear component 4 is realized connecting through key or other structure with motor shaft 1 according to the needs of transmission, and by first circlip, 3 axial restraints.Output gear component 4 both sides are furnished with main main bearing; Said main main bearing comprises the clutch shaft bearing group 2 and second bearing group 6, and the calculating of the clutch shaft bearing group 2 and second bearing group 6 and matching design get final product according to the requirement design of mechanical design handbook related load bearing.
Stator module 8 is fixedly connected on stator fixed support 7, and is fixed on the support group 5 by screw attachment through stator fixed support 7.
When motor zero load or light running; The load of motor output loading on bearing mainly born by the clutch shaft bearing group 2 and second bearing group 6 of main main bearing; Auxiliary bearing 13 is because of inner ring and the bigger matched in clearance of motor shaft 1 employing; Can effectively get out of the way the interference of motor shaft 1 circular runout,, also not produce additional force and can not disturb other bearing or disturb other structures so auxiliary bearing 13 is bearing load not under the unloaded or underloading situation at motor.When the motor running load increases, certain deformation must take place in motor shaft 1, and motor produces active force such as electromagnetism unilateral magnetic force and also increase because of factors such as electromagnetism and mechanisms, and acting on the strain that produces on the motor shaft 1 can increase along with the increase of load.Therefore, the circular runout of motor shaft 1 also can aggravate along with the increase of load, and electric electromechanics magnetism gap can be more inhomogeneous.
In conventional structure; Auxiliary bearing 13 is not set in order to supplemental support; Thereby the stress of motor shaft 1 can not improve; Shaft distortion can not be controlled, after the aggravation of above-mentioned unfavorable factor, can produce very large additional force act on main main bearing be clutch shaft bearing group 2 and second bearing group 6 until stress balance, aforementioned unfavorable factor usually can cause the operation exception of clutch shaft bearing group 2 and second bearing group 6 and whole system.The utility model is provided with three groups of bearings to solve foregoing problems through coaxial on motor shaft 1; Wherein three of coaxial setting groups of bearings comprise clutch shaft bearing group 2 and second bearing group 6 and auxiliary bearing 13; Wherein the clutch shaft bearing group 2 and second bearing group 6 are main main bearings; Be the main load support of motor output loading, the auxiliary bearing 13 of motor opposite side as the supplemental support of motor in order to supplemental support motor shaft 1.Wherein, The inner ring of auxiliary bearing 13 and motor shaft 1 matched in clearance; Auxiliary bearing 13 is not participated in the load carrying of motor shaft 1 under the unloaded perhaps underloading condition of motor; But along with load increases, motor shaft 1 is because of effects such as strain contact with auxiliary bearing 13 gradually, thereby makes auxiliary bearing 13 and clutch shaft bearing group 2 and 6 actings in conjunction of second bearing group in motor shaft 1.Therefore; 9 stressed being of motor rotor assembly " simply supported beam " stress; Improved the stress of motor shaft 1; Also limited simultaneously the further aggravation of motor shaft 1 circular runout and distortion, and then restrictions motor aggravates further because of the unfavorable factors such as unilateral magnetic force of electromagnetism and mechanism's factor generation.Like this, auxiliary bearing 13 can significantly limit these adverse factors generations on structure, improve the service conditions of main main bearing and system, improves system performance.
Another embodiment as the utility model; Said auxiliary bearing 13 is under different processes and service condition; The cooperation that Internal and external cycle is corresponding can specifically design according to actual conditions; As under certain process conditions, also can adopt the dead eye of auxiliary bearing 13 outer rings and end cap seat 12 to adopt matched in clearance, inner ring and motor shaft 1 adopt transition or interference fit; Perhaps Internal and external cycle all adopts matched in clearance; Perhaps Internal and external cycle is transition or interference fit, and the bearing clearance grade is selected 3 groups or 3 groups of above bearings for use.But,, all can reach good effect total must guarantee the auxiliary bearing 13 reasonable radial floating gaps that have in service no matter adopt the bearing of which kind of cooperation or which kind of play.
The load output mechanism is an output gear component 4 in the embodiment of the utility model, can also select for use traction sheave to realize load output certainly.
The elevator traction machine of the utility model can be optimized the structural design of motor shaft and main main bearing with electric motor structure and technology simple possible, reduces the coefficient of safety redundancy, reduces cost, and improves the runnability of complete machine.
The utility model only carries out detailed description with regard to a most preferred embodiment of the utility model; But can not be interpreted as the restriction of other modes that the utility model is implemented; Everyly on the utility model basis, further improve and similar or identical scheme, all being regarded as is the scope that the utility model is asked for protection.
According to the announcement and the instruction of above-mentioned specification, the utility model those skilled in the art can also carry out suitable change and modification to above-mentioned execution mode.Therefore, the embodiment that discloses and describe above the utility model is not limited to is in the protection range of the claim that also should fall into the utility model to some modifications and the change of the utility model.In addition, although used some specific terms in this specification, these terms are explanation for ease just, the utility model is not constituted any restriction.
Claims (4)
1. elevator traction machine is used motor; Comprise motor shaft (1), support group (5), stator module (8), rotor assembly (9) and load output mechanism; Said stator module (8) is fixed on the support group (5) through a stator fixed support (7); Be connected with load output mechanism and said rotor assembly (9) on the said motor shaft (1) respectively; Said load output mechanism both sides are provided with main main bearing, and said main main bearing comprises clutch shaft bearing group (2) and second bearing group (6); Said rotor assembly (9) is arranged at an end of said motor shaft (1); Said main main bearing is positioned at a side of rotor assembly (9); It is characterized in that: the motor shaft (1) of said rotor assembly (9) opposite side is provided with when motor load increases in order to the auxiliary bearing (13) on the said motor shaft of supplemental support (1); Said auxiliary bearing (13) is fixedly mounted on the dead eye place on the end cap seat (12) by bearing (ball) cover (14), and end cap seat (12) is fixedly linked in support group (5).
2. elevator traction machine according to claim 1 is used motor, it is characterized in that: said load output mechanism is output gear component (4) or traction sheave.
3. elevator traction machine according to claim 1 is used motor; It is characterized in that: the dead eye of said auxiliary bearing (13) outer ring and end cap seat (12) adopts matched in clearance, and auxiliary bearing (13) inner ring and motor shaft (1) adopt transition or interference fit; Perhaps said auxiliary bearing (13) Internal and external cycle all adopts matched in clearance.
4. elevator traction machine according to claim 1 is used motor, it is characterized in that: said auxiliary bearing (13) Internal and external cycle is transition or interference fit, and the bearing clearance grade is selected 3 groups or 3 groups of above bearings
for use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205089672U CN202364035U (en) | 2011-12-09 | 2011-12-09 | Motor used for elevator tractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205089672U CN202364035U (en) | 2011-12-09 | 2011-12-09 | Motor used for elevator tractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202364035U true CN202364035U (en) | 2012-08-01 |
Family
ID=46575191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205089672U Expired - Fee Related CN202364035U (en) | 2011-12-09 | 2011-12-09 | Motor used for elevator tractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202364035U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108087429A (en) * | 2016-11-22 | 2018-05-29 | 奥的斯电梯公司 | With the method and external member of thrust bearing repacking elevator machine and the elevator machine by repacking |
| CN109292685A (en) * | 2018-10-17 | 2019-02-01 | 合肥搬易通科技发展有限公司 | A kind of installing mechanism of the split type vertical driving gear-box of fork truck |
| CN113931832A (en) * | 2021-11-08 | 2022-01-14 | 黄秀芳 | Structure for prolonging service life of pinion of reciprocating pump |
-
2011
- 2011-12-09 CN CN2011205089672U patent/CN202364035U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108087429A (en) * | 2016-11-22 | 2018-05-29 | 奥的斯电梯公司 | With the method and external member of thrust bearing repacking elevator machine and the elevator machine by repacking |
| US10737908B2 (en) | 2016-11-22 | 2020-08-11 | Otis Elevator Company | Method and kit for retrofitting elevator machines with thrust bearing, and retrofitted elevator machine |
| CN108087429B (en) * | 2016-11-22 | 2020-11-06 | 奥的斯电梯公司 | Method and kit for retrofitting an elevator machine with a thrust bearing, and retrofitted elevator machine |
| US11299374B2 (en) * | 2016-11-22 | 2022-04-12 | Otis Elevator Company | Method and kit for retrofitting elevator machines with thrust bearing, and retrofitted elevator machine |
| CN109292685A (en) * | 2018-10-17 | 2019-02-01 | 合肥搬易通科技发展有限公司 | A kind of installing mechanism of the split type vertical driving gear-box of fork truck |
| CN113931832A (en) * | 2021-11-08 | 2022-01-14 | 黄秀芳 | Structure for prolonging service life of pinion of reciprocating pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120801 Termination date: 20151209 |
|
| EXPY | Termination of patent right or utility model |