CN103939553A - Total-stroke lifting worm structure - Google Patents
Total-stroke lifting worm structure Download PDFInfo
- Publication number
- CN103939553A CN103939553A CN201310024161.XA CN201310024161A CN103939553A CN 103939553 A CN103939553 A CN 103939553A CN 201310024161 A CN201310024161 A CN 201310024161A CN 103939553 A CN103939553 A CN 103939553A
- Authority
- CN
- China
- Prior art keywords
- nut
- outer tube
- worm
- opening groove
- dustproof outer
- 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.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
- F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
- F16H25/20—Screw mechanisms
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
- F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
- F16H25/20—Screw mechanisms
- F16H25/24—Elements essential to such mechanisms, e.g. screws, nuts
- F16H25/2418—Screw seals, wipers, scrapers or the like
Abstract
The invention discloses a total-stroke lifting worm structure which comprises a shell, a power source arranged in the shell and a worm driven by the power source to rotate and arranged outside the shell. The worm is sleeved with an outer dustproof pipe. One end of the outer dustproof pipe is fixedly connected with the shell. A limiting opening groove is formed in the outer dustproof pipe in the axial direction. A nut is further arranged between the worm and the outer dustproof pipe and connected to the worm in a meshed mode through threads. One end of a workbench fixed head is placed in the limiting opening groove of the outer dustproof pipe and fixedly connected with the nut and the workbench fixed head can slide along the limiting opening groove. According to the total-stroke lifting worm structure, the worm and the outer dustproof pipe are used in the total stroke, design waste is avoided, the structure is exquisite, the manufacturing process is relatively exquisite, production cost is reduced to a large extent, and economic benefits are improved to a large extent. In addition, an internal buckling fixing mode is adopted in the structure, so that the risk that the outer dustproof pipe and the nut are separated from each other when a workbench receives extremely large force is greatly avoided, and the stability and the reliability of the structure are improved.
Description
Technical field
The present invention relates to a kind of lifting worm structure, relate in particular to a kind of highi degree of accuracy total travel lifting worm structure with dustproof outer tube.
Background technique
In elevator mechanism, often can regulate the height of movement platform with elevating endless screw.The lifting worm structure of use as shown in Figure 1 at present: power source 1 drives worm screw 2 to rotate, nut 3 is located at outside worm screw 2 by thread bush, dustproof outer tube 4 one end are located at outside nut 3 by screw thread fixed cover, worktable gland 5 is fixedly arranged on dustproof outer tube 4 the other ends, because nut 3 and dustproof outer tube 4 and worktable gland 5 are fixed on worktable and can not rotate with worm screw, thereby make nut 3, dustproof outer tube 4 and and make platform gland 5 to do along worm axis direction be moving up and down of Vertical direction.This structure has following shortcoming: worktable gland 5 positions, hole of this structure must be higher than the height of dustproof outer tube 4, the move distance of lifting worm structure is confined to again in dustproof outer tube 4 simultaneously, therefore, partially short if dustproof outer tube 4 does, move distance is limited; If it is partially long that dustproof outer tube 4 does, worktable level altitude is limited, and exceeds after duster coat fixed cover one segment distance when dustproof outer tube 4, can cause worktable to rock shakiness.In addition, because nut 3 is that screw thread is fixed with the means of fixation of dustproof outer tube 4, power source 1 is output as rotary output simultaneously, if improper use likely causes coming off of nut 3 and dustproof outer tube 4, thereby makes elevating endless screw failure mechanisms.
Summary of the invention
In order to overcome above-mentioned defect, the invention provides a kind of total travel lifting worm structure, not only can not cause worktable to rock shakiness, more can not cause coming off of nut and dustproof outer tube.
The present invention for the technological scheme that solves its technical problem and adopt is: a kind of total travel lifting worm structure, comprise housing, be located at power source in this housing and by this power source driven rotary and be placed in the worm screw outside housing, sheathed one dustproof outer tube outside described worm screw, this dustproof outer tube one end described housing that is connected, and axially offer a limit opening groove along it on this dustproof outer tube; Between described worm screw and dustproof outer tube, be also provided with a nut, this nut is connected on described worm screw by thread engagement, one end of worktable gland is placed in the limit opening groove of described dustproof outer tube and is connected with described nut, and this work gland can be slided along described limit opening groove.
As a further improvement on the present invention, the limit opening groove on described dustproof outer tube is two, and is symmetrically set on the relative bi-side of described dustproof outer tube; Described worktable gland is also two, and its one end is placed in respectively in a limit opening groove affixed with described nut.
The invention has the beneficial effects as follows: by the nut that is spirally connected outward worm screw, and at worm screw and the nut overcoat dirt outer tube of setting up defences, an opening slot of simultaneously limiting on dustproof outer tube, it is interior and affixed with nut that one end of worktable gland is inserted in limit opening groove, worktable gland moves up and down with screw rod together with nut in limit opening groove simultaneously, this structure can make worktable do total travel elevating movement with worm screw, thereby realize the whole process utilization of worm screw and dustproof outer tube overall length, avoid the waste in design, and this structure structure is simplified, preparation process is simplified relatively, significantly reduce cost of production and improved economic benefit.In addition, button means of fixation in this structure adopts, does not select the rotation means of fixation that nut and dustproof outer tube are conventional, thereby has greatly avoided the stressed risk that dustproof outer tube and nut depart from when excessive of worktable, the stability of lift structure and reliability.
Brief description of the drawings
Fig. 1 is existing lifting worm structure schematic diagram;
Fig. 2 is total travel lifting worm structure schematic diagram of the present invention;
Fig. 3 is the cut-away section structural representation of Fig. 2;
Fig. 4 is the decomposition texture schematic diagram of Fig. 2.
By reference to the accompanying drawings, make the following instructions:
1---power source 2---worm screw
3---nuts 4---outer tube that prevents dust
5---worktable gland 41---limit opening groove
10---housing
Embodiment
By reference to the accompanying drawings, the present invention is elaborated, but protection scope of the present invention is not limited to following embodiment, the simple equivalence of in every case being done with the present patent application the scope of the claims and description changes and modifies, within all still belonging to patent covering scope of the present invention.
As shown in Figure 2,3, 4, a kind of total travel lifting worm structure, comprise housing 10, be located at power source in this housing 10 and by this power source driven rotary and be placed in the worm screw 2 outside housing 10, at the dustproof outer tube 4 of worm screw 2 outer sheathed, these dustproof outer tube 4 one end housing 10 that is connected, and axially offer a limit opening groove 41 along it on this dustproof outer tube; Between worm screw and dustproof outer tube, being also provided with nut 3 these nuts 3 is connected in by thread engagement on worm screw 2, one end of worktable gland 5 is placed in the limit opening groove 41 of dustproof outer tube 4 and is connected with described nut 3, and this work gland can be slided along limit opening groove.
When work, power source 1 drives worm screw 2 to rotate, worm screw 2 is connected with nut 3 thread engagement, simultaneously because nut 3 and worktable gland 5 are connected, worktable gland 5 is slidably plugged in limit opening groove 41, and this just makes the rotation of worm screw 2 be converted into worktable gland 5 and nut 3 interior the moving along worm screw 2 axial directions of limit opening groove 41.Because worktable gland and nut are spirally connected and limitedly move in spacing opening slot, thereby make the adjustable height of worktable can do along with worm screw the motion of full name, and effectively utilize the length of dustproof outer tube 4.In addition, because limit opening groove is opened on the outer side surface of dustproof outer tube, nut, with to be inserted in worktable gland in limit opening groove directly fixing, therefore can not cause the disengaging of nut and worm screw, thereby avoids the danger of stressed dustproof outer tube and nut disengaging when excessive of worktable.
Preferably, the limit opening groove 41 on described dustproof outer tube 4 is two, and is symmetrically set on the relative bi-side of dustproof outer tube 4; Worktable gland 5 is also two, and its one end is placed in respectively in a limit opening groove 41 affixed with nut 3.Like this, worktable is fixed by two worktable glands and nut two ends, in conjunction with more firm, thereby makes worktable do the elevating movement of total travel with worm screw.
Claims (2)
1. a total travel lifting worm structure, comprise housing (10), be located at power source in this housing (10) and by this power source driven rotary and be placed in the outer worm screw (2) of housing (10), it is characterized in that: sheathed one dustproof outer tube (4) outside described worm screw (2), this dustproof outer tube (4) one end described housing (10) that is connected, and axially offer a limit opening groove (41) along it on this dustproof outer tube; Between described worm screw and dustproof outer tube, be also provided with a nut (3), this nut (3) is connected on described worm screw (2) by thread engagement, one end of worktable gland (5) is placed in the limit opening groove (41) of described dustproof outer tube (4) and is connected with described nut (3), and this work gland can be slided along described limit opening groove.
2. total travel lifting worm structure according to claim 1, is characterized in that: the limit opening groove on described dustproof outer tube is two, and is symmetrically set on the relative bi-side of described dustproof outer tube; Described worktable gland is also two, and its one end is placed in respectively in a limit opening groove affixed with described nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310024161.XA CN103939553B (en) | 2013-01-23 | 2013-01-23 | Total travel lifting worm structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310024161.XA CN103939553B (en) | 2013-01-23 | 2013-01-23 | Total travel lifting worm structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103939553A true CN103939553A (en) | 2014-07-23 |
| CN103939553B CN103939553B (en) | 2016-04-27 |
Family
ID=51187366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310024161.XA Expired - Fee Related CN103939553B (en) | 2013-01-23 | 2013-01-23 | Total travel lifting worm structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103939553B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2658407A (en) * | 1949-06-03 | 1953-11-10 | Carrett Corp | Nonjamming stop for linear actuators |
| CN2672374Y (en) * | 2003-12-24 | 2005-01-19 | 加维股份有限公司 | Linear driving mechanism |
| CN2734721Y (en) * | 2004-08-31 | 2005-10-19 | 陈勇 | Electric jack |
| CN201044394Y (en) * | 2007-05-14 | 2008-04-02 | 捷世达企业有限公司 | Linear brake |
| CN101443985A (en) * | 2006-05-13 | 2009-05-27 | 利纳克有限公司 | Linear actuator |
| CN201549975U (en) * | 2009-10-27 | 2010-08-11 | 捷世达企业股份有限公司 | Transmission structure assembly of linear actuator |
| CN203095508U (en) * | 2013-01-23 | 2013-07-31 | 捷世达电机（昆山）有限公司 | Total-travel lifting worm structure |
-
2013
- 2013-01-23 CN CN201310024161.XA patent/CN103939553B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2658407A (en) * | 1949-06-03 | 1953-11-10 | Carrett Corp | Nonjamming stop for linear actuators |
| CN2672374Y (en) * | 2003-12-24 | 2005-01-19 | 加维股份有限公司 | Linear driving mechanism |
| CN2734721Y (en) * | 2004-08-31 | 2005-10-19 | 陈勇 | Electric jack |
| CN101443985A (en) * | 2006-05-13 | 2009-05-27 | 利纳克有限公司 | Linear actuator |
| CN201044394Y (en) * | 2007-05-14 | 2008-04-02 | 捷世达企业有限公司 | Linear brake |
| CN201549975U (en) * | 2009-10-27 | 2010-08-11 | 捷世达企业股份有限公司 | Transmission structure assembly of linear actuator |
| CN203095508U (en) * | 2013-01-23 | 2013-07-31 | 捷世达电机（昆山）有限公司 | Total-travel lifting worm structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103939553B (en) | 2016-04-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20160427 Termination date: 20200123 |
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| CF01 | Termination of patent right due to non-payment of annual fee |