CN202785469U - Vertical transmission mechanism based on lead screw - Google Patents
Vertical transmission mechanism based on lead screw Download PDFInfo
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- CN202785469U CN202785469U CN 201220372062 CN201220372062U CN202785469U CN 202785469 U CN202785469 U CN 202785469U CN 201220372062 CN201220372062 CN 201220372062 CN 201220372062 U CN201220372062 U CN 201220372062U CN 202785469 U CN202785469 U CN 202785469U
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- transmission mechanism
- lead screw
- vertical transmission
- leading screw
- gear case
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Abstract
The utility model discloses a vertical transmission mechanism based on a lead screw. The vertical transmission mechanism comprises a telescopic frame and a lead screw transmission mechanism, wherein the telescopic frame comprises two V-shaped telescopic frames which are arranged in horizontally reversed interacting mode, the upper opened ends of the V-shaped telescopic frames are fixedly connected onto a bed board through shafts, the lower opened ends of the V-shaped telescopic frames are fixedly connected onto a base through shafts, and middle connection ends of the V-shaped telescopic frames are connected with each other through the horizontally placed lead screw transmission mechanism. The telescopic frame comprises the two V-shaped telescopic frames which are arranged in horizontally reversed interacting mode, the opened ends of the V-shaped telescopic frames are fixedly connected onto the bed board and the base through the shafts, the middle connection ends are connected through the horizontally placed lead screw transmission mechanism, the V-shaped telescopic frames do not need to be connected through the shafts, and the opened ends do not need to be connected with guide rails, so that part design of a lead screw driving structure is simplified, the cost is reduced, and improvement on vertical toughness of the integral structure is facilitated.
Description
Technical field
The utility model relates to a kind of vertical lifting mechanism, relates in particular to a kind of vertical transmission mechanism based on leading screw.
Background technology
Medical facilities comprise CT (computed tomography), PET-CT (positron emission tomography scanning), and, linacs etc. all need examination couch to come supporting patient, and need the motion of each degree of freedom of realization examination couch.For bed motion in vertical direction, wish that the perpendicular movement stroke that can reach is as far as possible large, vertical mechanically operated mechanical error is as far as possible little.
The existing vertical lifting mechanism that is used for the CT examination bed mainly drives by leading screw realizes sickbed vertical movement, as shown in Figure 1, this vertical lifting mechanism comprises the expansion bracket 30 of double shear knife structure, be fixedly linked by anchor shaft 31 in the middle of two expansion brackets 30, expansion bracket 30 comprises two fixing feet 9 and two movable legs 8 that are arranged on the same side, two fixing feet 9 are separately fixed on bed board 1 and the base 10, two slip pin 8 are separately positioned on the guide rail 7 on bed board 1 and the base 10, height according to bed board 1 moves, use motor 5 drive gear casings 4, drive feed screw nut 2 by gear case 4, drive leading screw 3 by feed screw nut 2, leading screw 3 drives bed board 1 and does vertical displacement movement.This mechanism can realize CT or the required large stroke requirement of MR (nuclear magnetic resonance (NMR)), but the movement clearance of guide rail 7 has increased the bulk deformation of structure, has reduced integrally-built rigidity.In addition, it is inner that motor 5 is installed in the double shear knife structure of expansion bracket 30, and Existential Space is too little to be unfavorable for the shortcoming such as maintenance, also needs to customize simultaneously gear case 4 and ut socket 6, and a whole set of vertical drive structure is complexity comparatively, and cost is also higher.
The utility model content
Technical problem to be solved in the utility model provides a kind of vertical transmission mechanism based on leading screw, and is simple in structure, and control is reliable, is convenient to installation and maintenance.
The utility model is to solve the problems of the technologies described above the technical scheme that adopts to provide a kind of vertical transmission mechanism based on leading screw, comprise expansion bracket and lead screw transmission mechanism, wherein, described expansion bracket be about reverse two V-type expansion brackets arranged in a crossed manner, described V-type expansion bracket upper, open end is fastened on the bed board by axle, lower open end is connected and fixed on the base by axle, and middle coupling end links to each other by the lead screw transmission mechanism of horizontal positioned.
Further, an end of described screw mandrel links to each other with motor, and other end cover is connected in the feed screw nut who is complementary with screw mandrel, and described gear case and feed screw nut are separately positioned on the middle coupling end of two V-type expansion brackets.
Further, an end of described screw mandrel links to each other with motor by gear case.
Further, described motor vertically is installed on the gear case.
Further, described gear case is the worm and gear gear case.
The utility model contrast prior art has following beneficial effect: the vertical transmission mechanism based on leading screw that the utility model provides, expansion bracket be about reverse two V-type expansion brackets arranged in a crossed manner, described V-type expansion bracket open end is fastened on bed board and the base by axle, middle coupling end links to each other by the lead screw transmission mechanism of horizontal positioned, do not need axle to connect between the V-type expansion bracket, open end does not need to link to each other with guide rail, simplified the parts design of leading screw drive configuration, reduced cost and be conducive to improve integrally-built vertical rigidity.In addition, this structure can satisfy sick bed large stroke motion in the vertical direction equally, and the moment of perpendicular movement is also stablized relatively easy to control, and motor can be installed in a side of V-type expansion bracket, have enough spaces to maintain easily personnel and carry out maintenance and debugging work, it is easier to keep in repair.
Description of drawings
Fig. 1 is existing vertical transmission mechanism structural representation based on leading screw;
Fig. 2 is the vertical transmission mechanism structural representation based on leading screw of the present utility model;
Fig. 3 is that another kind of the present utility model is based on the vertical transmission mechanism structural representation of leading screw.
Among the figure:
1 bed board, 2 feed screw nuts, 3 leading screws
4 gears case, 5 motors, 6 ut sockets
7 guide rails, 8 slip pin, 9 fixing feet
10 bases, 30 expansion brackets, 31 anchor shafts
The specific embodiment
The utility model will be further described below in conjunction with drawings and Examples.
Fig. 2 is the vertical transmission mechanism structural representation based on leading screw of the present utility model.
See also Fig. 2, reverse two V-type expansion brackets 30 arranged in a crossed manner about the vertical transmission mechanism based on leading screw that the utility model provides comprises, described V-type expansion bracket 30 upper, open end are fastened on the bed board 1 by axle, lower open end is connected and fixed on the base 10 by axle, saved the guide rail connection, also no longer need axle to connect between two V-type expansion brackets 30, middle coupling end links to each other by the lead screw transmission mechanism of horizontal positioned, can satisfy equally sick bed large stroke motion in the vertical direction, the moment of perpendicular movement is also stablized relatively easy to control.
The concrete connection of lead screw transmission mechanism is as follows: an end of screw mandrel 3 directly links to each other with motor 5, perhaps link to each other with motor 5 by gear case 4, other end cover is connected in the feed screw nut 2 who is complementary with screw mandrel 3, and gear case 4 and feed screw nut 2 are separately positioned on the middle coupling end of two V-type expansion brackets 30.Gear case 4 is preferably the worm and gear gear case, and the position of motor 5 can arrange flexibly according to the needs of maintenance, but after adopting gear case, motor 5 preferably vertically is arranged on the gear case in order to keep in repair, as shown in Figure 3.Because after bed board 1 decline this moment, both sides can be outstanding, increases width; In this case, if also motor 5 is arranged on the level attitude, then can more strengthen width, take larger space.
The vertical transmission mechanism specific works principle based on leading screw that the utility model provides is as follows: pass through motor 5 drive gear casings 4 during motion, gear case 4 drives leading screw 3, leading screw 3 drives feed screw nut 2, because feed screw nut 2 is fixed on the expansion bracket 30, therefore leading screw 3 drive nuts 2 drive whole bed board 1 with vertical scissor construction expansion bracket 30 and do vertical displacement movement, therefore, this structure can satisfy sick bed large stroke motion in the vertical direction equally, the moment of perpendicular movement is also stablized relatively easy to control, in addition, motor 5 can be installed in double shear knife structure one side of expansion bracket 30, there are enough spaces to maintain easily personnel and carry out maintenance and debugging work, and simplified the parts design of leading screw drive configuration, and reduced cost, it is easier to keep in repair.The utility model further is placed on the leading screw drive configuration midway location of whole vertical lifting mechanism, is conducive to improve integrally-built vertical rigidity.
Although the utility model discloses as above with preferred embodiment; so it is not to limit the utility model; any those skilled in the art; within not breaking away from spirit and scope of the present utility model; when doing a little modification and perfect, therefore protection domain of the present utility model is worked as with being as the criterion that claims were defined.
Claims (5)
1. vertical transmission mechanism based on leading screw, comprise expansion bracket and lead screw transmission mechanism, it is characterized in that, described expansion bracket be about reverse two V-type expansion brackets (30) arranged in a crossed manner, described V-type expansion bracket (30) upper, open end is fastened on the bed board (1) by axle, lower open end is connected and fixed on the base (10) by axle, and middle coupling end links to each other by the lead screw transmission mechanism of horizontal positioned.
2. the vertical transmission mechanism based on leading screw as claimed in claim 1, it is characterized in that, one end of described screw mandrel (3) links to each other with motor (5), other end cover is connected in the feed screw nut (2) who is complementary with screw mandrel (3), and described gear case (4) and feed screw nut (2) are separately positioned on the middle coupling end of two V-type expansion brackets (30).
3. the vertical transmission mechanism based on leading screw as claimed in claim 2 is characterized in that, an end of described screw mandrel (3) links to each other with motor (5) by gear case (4).
4. the vertical transmission mechanism based on leading screw as claimed in claim 3 is characterized in that, described motor (5) vertically is installed on the gear case (4).
5. such as claim 3 or 4 described vertical transmission mechanisms based on leading screw, it is characterized in that described gear case (4) is the worm and gear gear case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220372062 CN202785469U (en) | 2012-07-28 | 2012-07-28 | Vertical transmission mechanism based on lead screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220372062 CN202785469U (en) | 2012-07-28 | 2012-07-28 | Vertical transmission mechanism based on lead screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202785469U true CN202785469U (en) | 2013-03-13 |
Family
ID=47812777
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220372062 Expired - Lifetime CN202785469U (en) | 2012-07-28 | 2012-07-28 | Vertical transmission mechanism based on lead screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202785469U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103241679A (en) * | 2013-05-21 | 2013-08-14 | 中山市罗顿五金机械有限公司 | Electric supporting system with parallel adjustment |
| CN105193439A (en) * | 2014-06-23 | 2015-12-30 | 上海理工大学 | Experimental device for CBCT system calibration |
| CN105775330A (en) * | 2016-04-25 | 2016-07-20 | 安丘博阳机械制造有限公司 | Powder conveying device |
| CN106028941A (en) * | 2014-11-12 | 2016-10-12 | Epica国际有限公司 | Radiological imaging device with improved funtionality |
| CN107055378A (en) * | 2017-05-31 | 2017-08-18 | 王晓强 | A kind of jacking apparatus |
| CN108817825A (en) * | 2018-08-13 | 2018-11-16 | 南京皓焜自动化科技有限公司 | A kind of positioner of installation easy to disassemble |
| CN109368541A (en) * | 2018-12-11 | 2019-02-22 | 安徽徽博文物修复研究所有限公司 | A kind of historical relic reparation special lifting load bearing equipment |
-
2012
- 2012-07-28 CN CN 201220372062 patent/CN202785469U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103241679A (en) * | 2013-05-21 | 2013-08-14 | 中山市罗顿五金机械有限公司 | Electric supporting system with parallel adjustment |
| CN105193439A (en) * | 2014-06-23 | 2015-12-30 | 上海理工大学 | Experimental device for CBCT system calibration |
| CN105193439B (en) * | 2014-06-23 | 2018-02-02 | 上海理工大学 | Experimental provision for CBCT system calibratings |
| CN106028941A (en) * | 2014-11-12 | 2016-10-12 | Epica国际有限公司 | Radiological imaging device with improved funtionality |
| CN106028941B (en) * | 2014-11-12 | 2020-09-29 | Epica国际有限公司 | Radiation imaging apparatus with improved functionality |
| US11369323B2 (en) | 2014-11-12 | 2022-06-28 | Epica International, Inc. | Radiological imaging device with improved functionality |
| CN105775330A (en) * | 2016-04-25 | 2016-07-20 | 安丘博阳机械制造有限公司 | Powder conveying device |
| CN107055378A (en) * | 2017-05-31 | 2017-08-18 | 王晓强 | A kind of jacking apparatus |
| CN108817825A (en) * | 2018-08-13 | 2018-11-16 | 南京皓焜自动化科技有限公司 | A kind of positioner of installation easy to disassemble |
| CN109368541A (en) * | 2018-12-11 | 2019-02-22 | 安徽徽博文物修复研究所有限公司 | A kind of historical relic reparation special lifting load bearing equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 201815 No. 1180 Xingxian Road, Jiading Industrial Zone, Jiading District, Shanghai Patentee after: Shanghai Lianying Medical Technology Co.,Ltd. Address before: 201815 No. 1180 Xingxian Road, Jiading Industrial Zone, Jiading District, Shanghai Patentee before: SHANGHAI UNITED IMAGING HEALTHCARE Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130313 |