CN101767756A - Electric lifting device - Google Patents
Electric lifting device Download PDFInfo
- Publication number
- CN101767756A CN101767756A CN200910064029A CN200910064029A CN101767756A CN 101767756 A CN101767756 A CN 101767756A CN 200910064029 A CN200910064029 A CN 200910064029A CN 200910064029 A CN200910064029 A CN 200910064029A CN 101767756 A CN101767756 A CN 101767756A
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- CN
- China
- Prior art keywords
- double
- screw bolt
- driving wheel
- motorized lift
- stud
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Abstract
The invention discloses an electric lifting device, comprising an upper fixing plate and a lower fixing plate, further comprising at least three same studs, wherein two ends of each stud are respectively fixed on the upper fixing plate and the lower fixing plate, each stud is provided with a driven wheel matched with the stud through threads, one bearing connected with the driven wheel is further sleeved on each stud, all bearings are connected with one movable plate, the movable plate is further provided with a motor, a shaft body of the motor is provided with a driving wheel, and the driving wheel is synchronously connected with all driven wheels. The electric lifting device adopts at least three points to support the lifting so as to have smaller radial oscillating quantity, and the oscillating quantity is not increased along with the lifting height; a lifting force applying surface is arranged among the studs, thus the volume is reduced by about one third compared with the electric pushing rod having a force applying surface outside the studs; in addition, the mechanical synchronization mode is simpler and more reliable than the electronic mode.
Description
Technical field
The invention belongs to platform takeoff and landing mechanism, relate in particular to the steady failure-free Motorized lift device of a kind of lifting.
Background technology
Motorized lift device adopts single-point to promote mostly at present, and sleeve connects.Cliding friction reduces the amount of radially wobbling around adopting between fixing, the quill.Can not be excessive because of force of sliding friction, make oscillating quantity bigger, when especially quill rose higherly, the amount of radially wobbling was excessive, was not suitable for using on infant incubator, the warming platform of baby's radiation.
Summary of the invention
The purpose of this invention is to provide the steady failure-free Motorized lift device of a kind of lifting, be adapted on infant incubator, the warming platform of baby's radiation, using.
For achieving the above object, the present invention adopts following technical scheme: a kind of Motorized lift device, comprise upper mounted plate and bottom plate, also comprise at least three same double-screw bolts, the two ends of each double-screw bolt are separately fixed on upper mounted plate and the bottom plate, a follower and its screw thread fit are arranged on each double-screw bolt, also be with a bearing that links to each other with follower on each double-screw bolt, all bearings all link to each other with a portable plate, electrical motor also is housed on the portable plate, on the electrical motor shaft extension driving wheel is housed, driving wheel links to each other with all follower simultaneously.
The through hole that has the motivation of to power to pass on the upper mounted plate.
The quantity of double-screw bolt is three.
The quantity of double-screw bolt is four.
Described follower and driving wheel are gear, driving gear and ring gear engagement.
Described follower and driving wheel are sprocket wheel, drive sprocket with linked to each other by chain by movable sprocket.
Adopt the Motorized lift device of technique scheme, take supported at three point lifting at least, the amount of radially wobbling is less, and oscillating quantity does not increase with rise height; The lifting force surface is compared volume-diminished nearly 1/3rd with the electric pushrod of force surface outside double-screw bolt between double-screw bolt; Besides, mechanical synchronization is synchronous simpler, reliable than electronics mode.
Description of drawings
Fig. 1 looks scheme drawing for master of the present invention.
Fig. 2 looks scheme drawing for the right side of Fig. 1.
Fig. 3 is a stereoscopic-state scheme drawing of the present invention.
The specific embodiment
As Fig. 1, Fig. 2, Motorized lift device shown in Figure 3, comprise upper mounted plate 2 and bottom plate 6, also comprise three same double-screw bolts 9, the two ends of each double-screw bolt 9 are fixed on upper mounted plate 2 and the bottom plate 6 by nut 7 respectively, a ring gear 5 and its screw thread fit are arranged on each double-screw bolt 9, the modulus of three ring gears is identical, also be with a bearing 4 that links to each other with ring gear 5 on each double-screw bolt 9, three bearings 4 all link to each other with a portable plate 3, electrical motor 1 also is housed on the portable plate 3, on electrical motor 1 shaft extension driving gear 8 is housed, driving gear 8 meshes the through hole that has the motivation of can powering to pass on the upper mounted plate 2 with three ring gears 5 simultaneously.
Principle of work of the present invention is as follows: after the energized, electrical motor begins on request direction with certain rotational speed, three ring gears that are engaged with respectively also begin to rotate by the direction opposite with driving gear, and rotating speed equates, because three ring gears are to be installed in respectively on the identical double-screw bolt of three parameters, so three ring gears can move up or down with identical speed when rotating.Motor mounting is on portable plate, and on three ring gears, equipment needs the gravity of rising part also to act on the portable plate to portable plate by the bearing load-bearing, and therefore, the rotation of electrical motor just is converted into portable plate moving up or down; In like manner, the counter-rotation of motor then can make portable plate move downward or upward.So the electrical motor both forward and reverse directions is rotated, just can reach the purpose that equipment raises and reduces.
Certainly, as required, the quantity of double-screw bolt also can be four or more a plurality of.
Aforesaid gear also can replace with sprocket wheel, and drive sprocket with can be linked to each other by chain by movable sprocket.Can certainly adopt other can realize the parts of synchronous transmission.
Claims (6)
1. Motorized lift device, it is characterized in that: comprise upper mounted plate and bottom plate, also comprise at least three same double-screw bolts, the two ends of each double-screw bolt are separately fixed on upper mounted plate and the bottom plate, and a follower and its screw thread fit are arranged on each double-screw bolt, also are with a bearing that links to each other with follower on each double-screw bolt, all bearings all link to each other with a portable plate, electrical motor also is housed on the portable plate, on the electrical motor shaft extension driving wheel is housed, driving wheel links to each other with all follower simultaneously.
2. Motorized lift device as claimed in claim 1 is characterized in that: the through hole that has the motivation of can powering to pass on the upper mounted plate.
3. Motorized lift device as claimed in claim 2 is characterized in that: the quantity of double-screw bolt is three.
4. Motorized lift device as claimed in claim 2 is characterized in that: the quantity of double-screw bolt is four.
5. as claim 3 or 4 described Motorized lift devices, it is characterized in that: described follower and driving wheel are gear, driving gear and ring gear engagement.
6. as claim 3 or 4 described Motorized lift devices, it is characterized in that: described follower and driving wheel are sprocket wheel, drive sprocket with linked to each other by chain by movable sprocket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910064029A CN101767756A (en) | 2009-01-07 | 2009-01-07 | Electric lifting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910064029A CN101767756A (en) | 2009-01-07 | 2009-01-07 | Electric lifting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101767756A true CN101767756A (en) | 2010-07-07 |
Family
ID=42500885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910064029A Pending CN101767756A (en) | 2009-01-07 | 2009-01-07 | Electric lifting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101767756A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107055390A (en) * | 2017-06-30 | 2017-08-18 | 合肥航机械科技股份有限公司 | A kind of mechanical hoisting machine |
| CN109335988A (en) * | 2018-11-01 | 2019-02-15 | 苏州固特斯电子科技有限公司 | A kind of hoistable platform |
| CN113071986A (en) * | 2021-03-12 | 2021-07-06 | 上海外高桥造船有限公司 | Leveling device of large-scale enclosure equipment |
-
2009
- 2009-01-07 CN CN200910064029A patent/CN101767756A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107055390A (en) * | 2017-06-30 | 2017-08-18 | 合肥航机械科技股份有限公司 | A kind of mechanical hoisting machine |
| CN109335988A (en) * | 2018-11-01 | 2019-02-15 | 苏州固特斯电子科技有限公司 | A kind of hoistable platform |
| CN113071986A (en) * | 2021-03-12 | 2021-07-06 | 上海外高桥造船有限公司 | Leveling device of large-scale enclosure equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20100707 |