CN202122675U - Novel lifting power driving device for dental chair - Google Patents
Novel lifting power driving device for dental chair Download PDFInfo
- Publication number
- CN202122675U CN202122675U CN2011202026544U CN201120202654U CN202122675U CN 202122675 U CN202122675 U CN 202122675U CN 2011202026544 U CN2011202026544 U CN 2011202026544U CN 201120202654 U CN201120202654 U CN 201120202654U CN 202122675 U CN202122675 U CN 202122675U
- Authority
- CN
- China
- Prior art keywords
- slide rail
- chair
- drive unit
- motor
- power drive
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
Abstract
The utility model provides a novel lifting power driving device for a dental chair, which comprises a motor jacket, a motor base and a rotary motor. One end of the motor jacket is connected with the motor base, an end guiding part is fixed onto the other end of the motor jacket, the rotary motor is mounted in the motor base and connected with a lead screw by a transmission key, a transmission nut is disposed on the periphery of the lead screw, a flange is arranged at the bottom of the transmission nut, one end of an outer slide rail contacts with the flange of the transmission nut, the other end of the outer slide rail is fixedly connected with a connector, one end, which is far away from the connected rotary motor, of the lead screw is fixedly connected with an inner slide rail, a limiting groove is arranged inside the outer slide rail, limiting bumps which extend into the limiting groove are disposed on the inner slide rail, and the outer diameter of the connector and the outer diameter of the outer slide rail are smaller than the inner diameter of the end guiding part. The novel lifting power driving device is simple and compact in structure, stable in transmission effect, convenient in repair and replacement and low in manufacturing cost.
Description
[technical field]
This utility model provides the up-down Power Drive Unit of a kind of novel dental with chair.
[background technology]
The up-down Power Drive Unit is the basic ingredient of dental chair.The operation of driving device can effectively realize the elevating movement of dental chair.As infrastructure component, driving device has determined the realization effect of elevating function, existing hydraulic lifting driving device, with oil pump as driving power, complex structure, SARS effort, profile relatively heaviness and cost are high.
[utility model content]
The purpose of this utility model is to provide the up-down Power Drive Unit of a kind of novel dental with chair, to solve the problems of the technologies described above.
To achieve these goals, this utility model adopts following technical scheme:
A kind of novel dental comprises motor overcoat, motor base and electric rotating machine with the up-down Power Drive Unit of chair; Said motor overcoat one end connects said motor base, is fixed with a termination guide on the other end; Electric rotating machine is installed in the said motor base; Said electric rotating machine is connected with leading screw through driving key, and said screw mandrel periphery is provided with a transmission nut, and said transmission nut bottom has a flange; The flange of the said transmission nut of one outside slide rail, one end in contact, the other end is fixedly connected union joint; Screw mandrel is fixedly connected an inboard slide rail away from an end that connects electric rotating machine; Slide rail inside, the said outside offers stopper slot, and said inboard slide rail is provided with the restriction protrusion that stretches in the said stopper slot; The external diameter of the external diameter of said union joint and outside slide rail is less than the internal diameter of termination guide.
The holder that can rotate is installed on the union joint, copper sheathing is installed on the holder.
Union joint and holder junction are provided with the retainer assembly, in the said retainer assembly thrust needle roller are installed.
Outside slide rail and transmission nut matched in clearance.
Between termination guide and union joint and outside slide rail is matched in clearance, and gap value is less than or equal to 0.02mm.
Inboard slide rail is fixed in screw mandrel one end through back-up ring and stop nut.
Compared with prior art, the utlity model has following advantage: a kind of novel dental of this utility model is with the up-down Power Drive Unit of chair, through changing motor output speed, moment of torsion; And adjust crucial driving member parameters of structural dimension; Adapting to the service requirement of different elevating mechanisms, and simple and compact for structure, the transmission effect stability; Maintenance and replacing are convenient, cheap for manufacturing cost.
[description of drawings]
Fig. 1 is the up-down Power Drive Unit final assembly figure of this utility model dental chair;
Fig. 2 is the up-down Power Drive Unit outside slide rail section of structure of this utility model dental chair;
Fig. 3 is the up-down Power Drive Unit leading screw guiding mechanism profile of this utility model dental chair;
Fig. 4 is the up-down Power Drive Unit retainer and the outside slide rail profile of this utility model dental chair;
The label among the figure and the corresponding relation of element are following: 1-copper sheathing, 2-holder, 3-thrust needle roller, 4-retainer assembly, 5-union joint; 6-termination guide, 7-stop nut, 8-back-up ring, the inboard slide rail of 9-, 10-outside slide rail; 11-motor overcoat, 12-leading screw, 13-transmission nut, 14-bearing; 15-bearing interstage sleeve, 16-driving key, 17-motor base, 18-electric rotating machine.
[specific embodiment]
See also Fig. 1, Fig. 2, Fig. 3 and shown in Figure 4, a kind of novel dental of this utility model comprises copper sheathing 1, holder 2, thrust needle roller 3, retainer assembly 4, union joint 5, termination guiding 6, stop nut 7, back-up ring 8, inboard slide rail 9, outside slide rail 10, motor overcoat 11, leading screw 12, transmission nut 13, bearing 14, bearing interstage sleeve 15, driving key 16, motor base 17, electric rotating machine 18 with the up-down Power Drive Unit of chair.
Electric rotating machine 18 drives leading screw 12 and rotates through driving key 16 and 12 coaxial connections of leading screw, and transmission nut 13 is realized rectilinear motion by the effect that screws of screw thread.Utilize transmission nut 13 end faces to promote the end face of outside slide rail 10, realize its axially rectilinear motion of rotation, and the rectilinear motion total kilometres are 150mm.
Through control, realize the two-way rotation of outfan, and drive leading screw 12 and realize two-way rotation, thereby drive transmission nut 13 and outside slide rail 10 moves reciprocatingly, for the elevating movement of dental chair provides power to electric rotating machine 18.
Driving device is inner, and outside slide rail 10 1 ends and transmission nut 13 matched in clearance need to realize axial rotation also that length of fit is 60mm, and the other end is threaded with union joint 5; Motor overcoat 11 is contained in slide rail 10 outsides, the outside, and an end is threaded with motor base 17, and the other end is threaded with termination guide 6.
Between termination guide 6 internal diameters and union joint 5 and outside slide rail 10 external diameters is matched in clearance; The control gap amount is not more than 0.02mm; And the excircle dimension of control connection 5, the excircle dimension of outside slide rail 10 and the interior hole dimension of termination guiding 6, to guarantee straight-line accuracy and stationarity.
Leading screw 12 ends are equipped with inboard slide rail 9, and 10 formation of outside slide rail linear fit, and each matching surface gap is not more than 0.02mm, and each mating surface roughness is not more than 0.8.Inboard slide rail 9 is fixed in screw mandrel 12 ends through back-up ring 8 and stop nut 7; Avoid the bending of leading screw when transmission nut 13 arrives maximum position stroke position, can improve stability of transmission.
The mating surface of control holder 2 and union joint 5 is for being rotatably assorted, and through trip bolt, limits the degree of freedom of holder 2 on directions X.Thrust needle roller 3 and retainer assembly 4 are installed in the end that is rotatably assorted, and with the resistance of reducing friction, rotate flexibility and reliability, thereby eliminate the axial rotation of outfan, make this driving device with single-degree-of-freedom form outputting power.
The above is merely a kind of embodiment of this utility model; It or not whole or unique embodiment; The conversion of any equivalence that those of ordinary skills take this utility model technical scheme through reading this utility model description, the claim that is this utility model contains.
Claims (6)
1. a novel dental is characterized in that with the up-down Power Drive Unit of chair, comprises motor overcoat (11), motor base (17) and electric rotating machine (18); Said motor overcoat (11) one ends connect said motor base (17), are fixed with a termination guide (6) on the other end; Electric rotating machine (18) is installed in the said motor base (17); Said electric rotating machine (18) is connected with leading screw (12) through driving key (16), and said screw mandrel (12) periphery is provided with a transmission nut (13), and said transmission nut (13) bottom has a flange; The flange of the one outside slide rail said transmission nuts of (10) one end in contact (13), the other end is fixedly connected union joint (5); Screw mandrel (12) is fixedly connected an inboard slide rail (9) away from an end that connects electric rotating machine (18); Said outside slide rail (10) inside offers stopper slot, and said inboard slide rail (9) is provided with the restriction protrusion that stretches in the said stopper slot; The external diameter of the external diameter of said union joint (5) and outside slide rail (10) is less than the internal diameter of termination guide (6).
2. a kind of novel dental as claimed in claim 1 is characterized in that with the up-down Power Drive Unit of chair: the holder (2) that can rotate is installed on the union joint (5), copper sheathing (1) is installed on the holder (2).
3. a kind of novel dental as claimed in claim 2 is characterized in that with the up-down Power Drive Unit of chair: union joint (5) is provided with retainer assembly (4) with holder (2) junction, and thrust needle roller (3) is installed in the said retainer assembly (4).
4. a kind of novel dental as claimed in claim 1 is characterized in that with the up-down Power Drive Unit of chair: outside slide rail (10) and transmission nut (13) matched in clearance.
5. a kind of novel dental as claimed in claim 1 is characterized in that with the up-down Power Drive Unit of chair: be matched in clearance between termination guide (6) and union joint (5) and outside slide rail (10), gap value is less than or equal to 0.02mm.
6. a kind of novel dental as claimed in claim 1 is characterized in that with the up-down Power Drive Unit of chair: inboard slide rail (9) is fixed in screw mandrel (12) one ends through back-up ring (8) and stop nut (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202026544U CN202122675U (en) | 2011-06-16 | 2011-06-16 | Novel lifting power driving device for dental chair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202026544U CN202122675U (en) | 2011-06-16 | 2011-06-16 | Novel lifting power driving device for dental chair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202122675U true CN202122675U (en) | 2012-01-25 |
Family
ID=45485749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202026544U Expired - Fee Related CN202122675U (en) | 2011-06-16 | 2011-06-16 | Novel lifting power driving device for dental chair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202122675U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102931760A (en) * | 2012-11-15 | 2013-02-13 | 北京自动化控制设备研究所 | Compact electric servo mechanism for linear displacement |
| WO2020073820A1 (en) * | 2018-10-10 | 2020-04-16 | 浙江捷昌线性驱动科技股份有限公司 | Transmission assembly used for lifting/lowering column, and lifting/lowering column |
-
2011
- 2011-06-16 CN CN2011202026544U patent/CN202122675U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102931760A (en) * | 2012-11-15 | 2013-02-13 | 北京自动化控制设备研究所 | Compact electric servo mechanism for linear displacement |
| CN102931760B (en) * | 2012-11-15 | 2015-03-25 | 北京自动化控制设备研究所 | Compact electric servo mechanism for linear displacement |
| WO2020073820A1 (en) * | 2018-10-10 | 2020-04-16 | 浙江捷昌线性驱动科技股份有限公司 | Transmission assembly used for lifting/lowering column, and lifting/lowering column |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120125 Termination date: 20120616 |