CN202414935U - Elevator traction machine - Google Patents
Elevator traction machine Download PDFInfo
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- CN202414935U CN202414935U CN2011205089117U CN201120508911U CN202414935U CN 202414935 U CN202414935 U CN 202414935U CN 2011205089117 U CN2011205089117 U CN 2011205089117U CN 201120508911 U CN201120508911 U CN 201120508911U CN 202414935 U CN202414935 U CN 202414935U
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- 238000005516 engineering process Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 3
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- 230000008859 change Effects 0.000 description 2
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- 238000012986 modification Methods 0.000 description 2
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Abstract
The utility model provides an elevator traction machine, which comprises a permanent magnet synchronous motor, traction wheels and a speed reduction gear box, wherein the speed reduction gear box is an involute few-tooth difference speed reduction planetary gear box and has an outer gear output structure in an NN type few-tooth difference planetary transmission structure; a planetary gear in the speed reduction gear box has a duplex coaxial gear ring structure; and the axial distance a between the effective acting tooth width midlines of an outer gear and an inner gear is equal to 0 or small than or equal to 1/4 of the effective acting tooth width of the inner gear. Compared with the prior art, the utility model has the advantages that the elevator traction machine is compact in structure, stable in operation and high in overload capacity; the transmission efficiency reaches over 90 percent; and a soft tooth surface can be adopted in an engaged gear pair, so that the elevator traction machine is easy to machine and low in cost.
Description
Technical field
The utility model relates to the elevator technology field, relates in particular to a kind of elevator traction machine of moving elevator vertically that is used for.
Background technology
Common in the market a kind of towing machine is that the tooth towing machine is arranged; It mainly is the worm and gear transmission type drawing; It adopts the mode of Asynchronous Motor Driving, worm reduction box transmission, and the major defect of this towing machine is: the asynchronous motor operating efficiency is lower, the worm reduction box driving efficiency is low, the complete machine operation energy consumption is big.Also have that a kind of the tooth towing machine is arranged is the epicyclic gear transmission towing machine; Its drop-gear box adopts involute tooth gear NGW planetary transmission structure; Relative worm and gear transmission type drawing, the structure of epicyclic gear transmission towing machine are comparatively compact, transmission is more efficient, but the cost of this towing machine is higher; Be approximately 2～4 times of same specification worm and gear transmission towing machine, because its cost is higher thereby also limited its applying on market to a certain extent.That adopts other structures in addition has a tooth towing machine; Have in the tooth towing machine at other, drop-gear box adopts helical wheel driving of parallel axes structure, and the drop-gear box driving efficiency of this structure is higher; But there is in the tooth towing machine the needed reduction ratio of drop-gear box bigger; Adopt the structure of the driving of parallel axes to cause complete machine structure and volume excessive, can not satisfy the installation requirement of the actual use of elevator traction machine, and cost is also higher.
Mostly use permanent-magnet synchnorous gearless dragging machine as elevator traction machine in the market, it does not adopt drop-gear box but by the load of electrical motor direct drive, and energy-efficient, the compact conformation of this towing machine, thereby uses more extensive at present.But under the usage condition of big load, need the output high pulling torque; If still adopt permanent-magnet synchnorous gearless dragging machine, its structure and volume will be very huge, with high costs; Under the present situation that rare earth resources lacks day by day, so expensive product has all the more lost competitive edge.
The utility model content
The purpose of the utility model is to provide a kind of compact conformation, driving efficiency is high and lower-cost elevator traction machine, to solve the problem that prior art exists.
To achieve these goals; The utility model provides a kind of elevator traction machine; Comprise permasyn morot and traction sheave; Said elevator traction machine also comprises gear reduction box, and said gear reduction box is the involute planetary gear gear reduction box, is external gear export structure in the NN type small Tooth Number Difference Planetary Transmission structure; Satellite gear in the said gear reduction box is the coaxial gear ring structure of duplex, and wherein external gear useful effect facewidth center line and inner gear useful effect facewidth center line equal 0 perhaps smaller or equal to 1/4 of the inner gear useful effect facewidth in axial apart from a.
Said gear reduction box comprises that input eccentric shaft, input end support, used clutch shaft bearing and second bearing, internally toothed annulus, planetary ring gear assembly, mouth support, output gear shaft, the used third axle of output gear shaft of input eccentric shaft hold and the 4th bearing, auxiliary stand; The planetary ring gear assembly is installed at the eccentric shaft part place of said input eccentric shaft; Between planetary ring gear assembly and the input eccentric shaft bearing set is installed, the planetary ring gear assembly can rotate freely around the input eccentric shaft; Internally toothed annulus is installed between input end support and the mouth support; The input eccentric shaft is provided with the two groups of bearing clutch shaft bearings and second bearing, and the outer ring of clutch shaft bearing is installed on the input end support, and the outer ring of second bearing is installed on the output gear shaft; Being furnished with two groups of bearings on the output gear shaft is that third axle holds and the 4th bearing, and the third axle bearing outer-ring is installed on the mouth support, and the 4th outside race is installed on the auxiliary stand; Traction sheave be installed on that third axle holds and the 4th bearing between output gear shaft on.
Wherein, second bearing overlaps with the bearing width medium line that third axle holds.
Wherein, said planetary ring gear assembly one side is arranged balance block, in order to centnifugal force and the couple of balance because of generations such as eccentric shaft part and planetary ring gear assembly on the input eccentric shaft.
Wherein, said elevator traction machine also is provided with base, and said base is mounted to one with input end support, mouth support and auxiliary stand connection.
Said permasyn morot comprises rotor set and stator pack, and wherein stator pack is mounted on the stator support, and fasteningly is connected on the input end support; Rotor set is fastening to be connected on the input eccentric shaft; Motor casing and input end support are cast as integrative-structure; The end cap that electrical motor is sealed and protects is connected and fixed on the input end support; Coder is installed on the input eccentric shaft, and is fixed on the end cap; Drg is arranged at input end support dual-side, and brake action is on the lateral surface of rotor set; The terminal handwheel of installing of input eccentric shaft.
The elevator traction machine of the utility model embodiment adopts this later-model involute planetary gear gear reduction box, compared with prior art, and the elevator traction machine compact conformation of the utility model embodiment; Operate steadily; Overload capacity is big, and driving efficiency is up to more than 90%, and the engaging tooth wheel set can adopt the soft flank of tooth; Processing technology is simple, and cost is lower.In addition, the elevator traction machine of the utility model embodiment adopts a kind of later-model involute planetary gear gear reduction box and permasyn morot, traction sheave to organically combine, and realizes that elevator traction machine is simple and reliable for structure, and efficient energy-saving and cost are lower.Compared to prior art, the elevator traction machine of the utility model embodiment adopts permasyn morot, and under equal conditions, high than the power of motor factor of asynchronous motor, operating efficiency is higher, and energy-saving effect is obvious.And electrical motor and gear reduction box support realization integrated design, simple and compact for structure, volume is little, and cost is low.
Description of drawings
Below in conjunction with the accompanying drawing and the specific embodiment, the structure and the useful technique effect thereof of the utility model elevator traction machine is elaborated.
Fig. 1 is the used satellite gear cutaway view of drop-gear box among the utility model embodiment;
Fig. 2 is the structural representation of the elevator traction machine of the utility model embodiment;
Fig. 3 is the cutaway view of the elevator traction machine of the utility model embodiment.
Among the figure: 1, handwheel; 2, coder; 3, end cap; 4, rotor set; 5, stator pack; 6, stator support; 7, input eccentric shaft; 8, input end support; 9, clutch shaft bearing; 10, internally toothed annulus; 11, planetary ring gear assembly; 12, second bearing; 13, mouth support; 14, third axle holds; 15, output gear shaft; 16, traction sheave; 17, the 4th bearing; 18, auxiliary stand; 19, base; 20, drg.
The specific embodiment
Understand for the purpose, technical scheme and the useful technique effect that make the utility model are more clear, the technology contents and the specific embodiment of the utility model is described in further detail below in conjunction with accompanying drawing.Should be understood that the specific embodiment of describing in this specification sheets only is in order to explain the utility model, is not in order to limit the utility model.
See also Fig. 1 to shown in Figure 3, be structure and the scheme of installation of the utility model embodiment.The elevator traction machine of the utility model embodiment comprises electrical motor, gear reduction box and traction sheave 16, and wherein electrical motor is a permasyn morot, and gear reduction box is later-model involute planetary gear gear reduction box.The shape of gear tooth of said gear reduction box is handled through correction of the flank shape; Adopt external gear export structure in the NN type small Tooth Number Difference Planetary Transmission structure; Satellite gear wherein is the coaxial gear ring structure of duplex, and wherein external gear useful effect facewidth center line and inner gear useful effect facewidth center line equal 0 perhaps smaller or equal to 1/4 of the inner gear useful effect facewidth in axial apart from a.This gear reduction box comprises that clutch shaft bearing 9 that input eccentric shaft 7, input end support 8, input eccentric shaft 7 are used and second bearing 12, internally toothed annulus 10, planetary ring gear assembly 11, mouth support 13, output gear shaft 15, output gear shaft 15 used third axles hold the 14 and the 4th bearing 17, auxiliary stand 18 and roller bearing end cap etc.Planetary ring gear assembly 11 is installed at the eccentric shaft part place of input eccentric shaft 7, between planetary ring gear assembly 11 and the input eccentric shaft 7 bearing set is installed, and planetary ring gear assembly 11 can rotate freely around input eccentric shaft 7; Planetary ring gear assembly 11 1 sides are arranged balance block, in order to centnifugal force and the couple of balance because of generations such as eccentric shaft part and planetary ring gear assembly 11 on the input eccentric shaft 7.Input eccentric shaft 7 is provided with the two groups of bearing clutch shaft bearings 9 and second bearing 12, and the outer ring of clutch shaft bearing 9 is installed on the input end support 8, and the outer ring of second bearing 12 is installed on the output gear shaft 15.Be furnished with two groups of bearings on the output gear shaft 15 and be third axle hold 14 and with the 4th bearing 17, third axle holds 14 outer rings and is installed on the mouth support 13, the 4th bearing 17 outer rings are installed on the auxiliary stand 18.Second bearing 12 and third axle hold 14 bearing width medium line and overlap.Internally toothed annulus 10 is installed between input end support 8 and the mouth support 13, by the fastening connection of screw.Base 19 is mounted to one with connections such as input end support 8, mouth support 13 and auxiliary stands 18.Seal faces such as this drop-gear box roller bearing end cap etc. all are furnished with structures such as oil sealing, can guarantee that transmission is normally lubricated, oil tight.
Traction sheave 16 is installed on third axle and holds on the output gear shaft 15 between the 14 and the 4th bearing 17, and traction sheave 16 is connected and fixed on output gear shaft 15 by key and shaft block ring.Gear reduction box output gear shaft 15 in the elevator traction machine of the utility model embodiment and traction sheave 16 coaxial connections installations; Output gear shaft 15 is " single supported beam " force structure in output load; The elevator traction machine machine system is stressed more safe and reliable, moves more stability and high efficiency.
The elevator traction machine of the utility model adopts the actuating device of permasyn morot as this towing machine, and wherein stator pack 5 is mounted on the stator support 6, and is connected on the input end support 8 through screw is fastening; Another embodiment as the utility model also can be cast as one with stator support 6 and input end support 8 by concrete structure; Rotor set 4 is connected on the input eccentric shaft 7 by key and circlip for shaft are directly fastening; Motor casing and input end support 8 are cast as integrative-structure; End cap 3 is connected and fixed on input end support 8, and electrical motor is sealed and protects.Coder 2 is installed on the input eccentric shaft 7, and is fixed on the end cap 3.Drg 20 is arranged at input end support 8 dual-sides, and brake action is on the lateral surface of rotor set 4.Input eccentric shaft 7 ends can be installed handwheel 1.
The principle of work and the process of the elevator traction machine of the utility model embodiment are following: during permasyn morot energising work, rotor set 4 rotations drive input eccentric shaft 7 and rotate; Planetary ring gear assembly 11 is under the eccentric turning effort of input eccentric shaft 7, and its external toothing and internally toothed annulus 10 mesh, and make the 11 reverse rotations of planetary ring gear assembly; Ingear takes place simultaneously in external toothing and internally toothed annulus 10 at planetary ring gear assembly 11; External gear on the internally toothed annulus of planetary ring gear assembly 11 and the output gear shaft 15 meshes; 11 contrarotations of planetary ring gear assembly just drive the rotation of output gear shaft 15; Thereby drive the rotation of traction sheave 16, realize that elevator promotes up and down.In the small Tooth Number Difference Planetary Transmission structure that above-mentioned embodiment drop-gear box adopts, gear transmission is interior engaged transmission, and profile of tooth can realize multiple tooth contact participation engaged transmission in the load transmission after special processing; Efficient is high; Overload capacity is big, and transmission gear can adopt the soft flank of tooth, and technology is simple.To sum up, the elevator traction machine scheme of the utility model embodiment can realize that towing machine operates steadily reliably, efficient energy-saving, compact conformation, cost be lower.
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 sheets, the utility model those skilled in the art can also carry out suitable change and modification to above-mentioned embodiment.Therefore, the specific embodiment that discloses and describe above the utility model is not limited to is in the protection domain 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 sheets, these terms are explanation for ease just, the utility model is not constituted any restriction.
Claims (6)
1. elevator traction machine; Comprise permasyn morot and traction sheave (16); It is characterized in that; Said elevator traction machine also comprises gear reduction box, and said gear reduction box is the involute planetary gear gear reduction box, is external gear export structure in the NN type small Tooth Number Difference Planetary Transmission structure; Satellite gear in the said gear reduction box is the coaxial gear ring structure of duplex, and wherein external gear useful effect facewidth center line and inner gear useful effect facewidth center line equal 0 perhaps smaller or equal to 1/4 of the inner gear useful effect facewidth in axial apart from a.
2. elevator traction machine according to claim 1; It is characterized in that: said gear reduction box comprises that input eccentric shaft (7), input end support (8), used clutch shaft bearing (9) and second bearing (12), internally toothed annulus (10), planetary ring gear assembly (11), mouth support (13), output gear shaft (15), the used third axle of output gear shaft (15) of input eccentric shaft (7) hold (14) and the 4th bearing (17), auxiliary stand (18); Planetary ring gear assembly (11) is installed at the eccentric shaft part place of said input eccentric shaft (7); Between planetary ring gear assembly (11) and the input eccentric shaft (7) bearing set is installed, planetary ring gear assembly (11) can rotate freely around input eccentric shaft (7); Internally toothed annulus (10) is installed between input end support (8) and the mouth support (13); Input eccentric shaft (7) is provided with two groups of bearing clutch shaft bearings (9) and second bearing (12), and the outer ring of clutch shaft bearing (9) is installed on the input end support (8), and the outer ring of second bearing (12) is installed on the output gear shaft (15); Being furnished with two groups of bearings on the output gear shaft (15) is that third axle holds (14) and the 4th bearing (17), and third axle holds (14) outer ring and is installed on the mouth support (13), and the 4th bearing (17) outer ring is installed on the auxiliary stand (18); Traction sheave (16) is installed on third axle and holds on the output gear shaft (15) between (14) and the 4th bearing (17).
3. elevator traction machine according to claim 2 is characterized in that: said second bearing (12) holds (14) with third axle bearing width medium line overlaps.
4. elevator traction machine according to claim 2 is characterized in that: said planetary ring gear assembly (11) one sides are arranged balance block, go up centnifugal force and the couple that eccentric shaft part and planetary ring gear assembly (11) etc. produce in order to balance because of input eccentric shaft (7).
5. elevator traction machine according to claim 2 is characterized in that: said elevator traction machine also is provided with base (19), and said base (19) is mounted to one with input end support (8), mouth support (13) and auxiliary stand (18) connection.
6. elevator traction machine according to claim 1; It is characterized in that: said permasyn morot comprises rotor set (4) and stator pack (5); Wherein stator pack (5) is mounted on the stator support (6), and fasteningly is connected on the input end support (8); Rotor set (4) is fastening to be connected on the input eccentric shaft (7); Motor casing and input end support (8) are cast as integrative-structure; The end cap (3) that electrical motor is sealed and protects is connected and fixed on input end support (8); Coder (2) is installed on the input eccentric shaft (7), and is fixed on the end cap (3); Drg (20) is arranged at input end support (8) dual-side, and brake action is on the lateral surface of rotor set (4); The terminal handwheel (1) of installing of input eccentric shaft (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205089117U CN202414935U (en) | 2011-12-09 | 2011-12-09 | Elevator traction machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205089117U CN202414935U (en) | 2011-12-09 | 2011-12-09 | Elevator traction machine |
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| Publication Number | Publication Date |
|---|---|
| CN202414935U true CN202414935U (en) | 2012-09-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205089117U Expired - Fee Related CN202414935U (en) | 2011-12-09 | 2011-12-09 | Elevator traction machine |
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| Country | Link |
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| CN (1) | CN202414935U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102417133A (en) * | 2011-12-09 | 2012-04-18 | 浙江西子富沃德电机有限公司 | Elevator traction machine |
| CN113915092A (en) * | 2021-11-08 | 2022-01-11 | 黄秀芳 | Reciprocating pump is convenient for maintain motor shaft auxiliary stay slide bearing and seal structure |
-
2011
- 2011-12-09 CN CN2011205089117U patent/CN202414935U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102417133A (en) * | 2011-12-09 | 2012-04-18 | 浙江西子富沃德电机有限公司 | Elevator traction machine |
| CN113915092A (en) * | 2021-11-08 | 2022-01-11 | 黄秀芳 | Reciprocating pump is convenient for maintain motor shaft auxiliary stay slide bearing and seal structure |
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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: 20120905 Termination date: 20151209 |
|
| EXPY | Termination of patent right or utility model |