CN101956518B - Grooved wheel type screw rod limiter - Google Patents
Grooved wheel type screw rod limiter Download PDFInfo
- Publication number
- CN101956518B CN101956518B CN2010105292949A CN201010529294A CN101956518B CN 101956518 B CN101956518 B CN 101956518B CN 2010105292949 A CN2010105292949 A CN 2010105292949A CN 201010529294 A CN201010529294 A CN 201010529294A CN 101956518 B CN101956518 B CN 101956518B
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- CN
- China
- Prior art keywords
- screw rod
- grooved wheel
- sheave
- screw mandrel
- torsion spring
- 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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Abstract
The invention relates to a grooved wheel type screw rod limiter. A screw rod is installed on a pedestal, and one end extending from the screw rod is connected with a driven gear; a grooved wheel and the screw rod are matched in a screw thread pair mode; a torsional spring is fixed on the inner sides of both ends of the pedestal, and a buckle of the torsinal spring is clamped in wheel teeth of the grooved wheel; and travel switches matched with the grooved wheel are arranged on both sides of the screw rod. Because the axial movement of the grooved wheel along the screw rod triggers a microswitch, the grooved wheel type screw rod limiter realizes the function of limiting; the grooved wheel type screw rod limiter has the advantages of compact structure, small size, small quality, convenient debugging and accurate and reliable limiting.
Description
Technical field
The present invention relates to a kind of stopping means, particularly a kind of grooved pulley type screw mandrel stop that is applicable to the electric rolling door device that various conventional rolling door open and close.
Background technology
At present; The stop of the rolling door headstock gear of producing both at home and abroad is the cam-type stop; This kind stop is owing to two relative deep-slotted chip breakers that use two screws to pass on the cam are fixed on cam on the Positioning Gear; Cause in tightening the process of screw and originally swing, cause captured offset with the cam of adjusting; And, because the characteristic of cam motion itself causes spacing stroke limiting.Volume is big so this kind stop has, and cost is high, and stroke is short, is difficult for debugging shortcomings such as accurate.
Summary of the invention
Technical problem to be solved by this invention provides a kind of grooved pulley type screw mandrel stop, has that volume is little, quality is little, a compact conformation and debug advantage easily, and safe and reliable.
For solving the problems of the technologies described above, the technical scheme that the present invention adopted is: a kind of grooved pulley type screw mandrel stop, and screw mandrel is installed on the base, and screw mandrel stretches out an end and is connected with driven gear; Sheave is that screw thread pair cooperates with screw mandrel; It is inboard that torsion spring is fixed on the base two ends, in the latch closure card entry slot wheel teeth groove of torsion spring; The travel switch apportion screw mandrel both sides that cooperate with sheave.
Described base adopts the YL104 aluminium alloys to process.
Described driven gear, sheave adopt powder metallurgy to process.
Described torsion spring adopts the block form torsion spring, and its latch closure snaps in the teeth groove of sheave.
The quantity of described sheave is two, and the quantity of the travel switch that cooperates with sheave is four.
Grooved pulley type screw mandrel stop provided by the invention owing to move axially along screw mandrel through sheave, triggers microswitch, thereby realizes limit function, has compact conformation, volume is little, quality is little, debugging is convenient, spacing advantage accurately and reliably.
Two near the base two ends in four travel switches that adopt is spacing protection switch, when middle two switches occur damaging or be malfunctioning, can guarantee to cut off motor power, so that in time change travel switch, realizes safeguard protection.
The torsion spring only with hand that adopts refers to from the sheave teeth groove, pluck out and can conveniently adjust sheave to desired location, need not other aids and saves the space.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is described further:
Fig. 1 is an overall structure front view of the present invention;
Fig. 2 is an overall structure vertical view of the present invention.
The specific embodiment
As depicted in figs. 1 and 2, a kind of grooved pulley type screw mandrel stop, screw mandrel 5 is installed on the base 2, and screw mandrel 5 stretches out an end and is connected with driven gear 1; Sheave 3 cooperates for screw thread pair with screw mandrel 5; It is inboard that torsion spring 6 is fixed on base 2 two ends, and the latch closure of torsion spring 6 snaps in the teeth groove of sheave 3; Travel switch 4 apportion screw mandrels 5 both sides that cooperate with sheave 3.
Described torsion spring 6 adopts the block form torsion spring, and the latch closure of torsion spring 6 snaps in the teeth groove of sheave 3.
The quantity of described sheave 3 is two, and the quantity of the travel switch 4 that cooperates with sheave 3 is four.
Described base 2 adopts the YL104 aluminium alloys to process.
Described driven gear 1, sheave 3 adopt powder metallurgy to process.
The course of work of the present invention is: the power that is passed over by the rolling door headstock gear drives screw mandrel 5 rotations through driven gear 1, and screw mandrel 5 is given sheave 3 through screw thread pair with transmission of power, owing to be fixed on the torsion spring 6 on the base 2; The latch closure of torsion spring 6 snaps in the teeth groove of sheave 3; Limited sheave 3 and radially rotated, thus sheave 3 can only move axially along screw mandrel 5, when moving on to sheave 3 depression stroke switches 4 when needing the position; Cut off the electricity supply, thereby realize limit function.When needs are adjusted spacing height, from the sheave teeth groove, pluck out the manual adjustments sheave to desired location with finger, thereby adjust spacing height.
Claims (2)
1. grooved pulley type screw mandrel stop, it is characterized in that: screw mandrel (5) is installed on the base (2), and screw mandrel (5) stretches out an end and is connected with driven gear (1); Sheave (3) cooperates for screw thread pair with screw mandrel (5); It is inboard that torsion spring (6) is fixed on base (2) two ends, described torsion spring (6) employing block form torsion spring, and the latch closure of torsion spring (6) snaps in the teeth groove of sheave (3); Travel switch (4) apportion screw mandrel (5) both sides that cooperate with sheave (3).
2. grooved pulley type screw mandrel stop according to claim 1 is characterized in that: the quantity of described sheave (3) is two, and the quantity of the travel switch (4) that cooperates with sheave (3) is four.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105292949A CN101956518B (en) | 2010-11-03 | 2010-11-03 | Grooved wheel type screw rod limiter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105292949A CN101956518B (en) | 2010-11-03 | 2010-11-03 | Grooved wheel type screw rod limiter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101956518A CN101956518A (en) | 2011-01-26 |
| CN101956518B true CN101956518B (en) | 2012-07-25 |
Family
ID=43484085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105292949A Expired - Fee Related CN101956518B (en) | 2010-11-03 | 2010-11-03 | Grooved wheel type screw rod limiter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101956518B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102990278B (en) * | 2012-10-21 | 2016-02-03 | 淮南师范学院 | Wheeled robot wheel limiter |
| CN103288004B (en) * | 2013-05-29 | 2016-04-27 | 杭州恒宏机械有限公司 | Blocking rotation gear case |
| CN105696930B (en) * | 2016-04-08 | 2017-08-25 | 无锡利日能源科技有限公司 | A kind of lower caging device of electric-powered shutter |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2357117Y (en) * | 1998-12-31 | 2000-01-05 | 吴文宇 | Caging device for rolling shutter door |
| CN2421401Y (en) * | 2000-05-11 | 2001-02-28 | 居兴国 | Caging device for electric door rolling machine |
| CN2464916Y (en) * | 2001-02-09 | 2001-12-12 | 漳州南祥机电有限公司 | Stroke controller for electric rolling door driving machine |
| CN201202393Y (en) * | 2008-05-07 | 2009-03-04 | 张树财 | Positioning apparatus of position limiter of rolling-curtain door machine |
| CN201850990U (en) * | 2010-11-03 | 2011-06-01 | 宜昌四八二○机电有限公司 | Sheave type lead screw limiter |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3834727B2 (en) * | 1996-12-19 | 2006-10-18 | 三和シヤッター工業株式会社 | Counter type limit switch for building doors |
| ITMI20070493A1 (en) * | 2007-03-13 | 2008-09-14 | Faac Spa | LIMIT SWITCH DEVICE AND A MOVEMENT HANDLING OPERATOR AND METHOD FOR SETTING A LIMIT SWITCH |
-
2010
- 2010-11-03 CN CN2010105292949A patent/CN101956518B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2357117Y (en) * | 1998-12-31 | 2000-01-05 | 吴文宇 | Caging device for rolling shutter door |
| CN2421401Y (en) * | 2000-05-11 | 2001-02-28 | 居兴国 | Caging device for electric door rolling machine |
| CN2464916Y (en) * | 2001-02-09 | 2001-12-12 | 漳州南祥机电有限公司 | Stroke controller for electric rolling door driving machine |
| CN201202393Y (en) * | 2008-05-07 | 2009-03-04 | 张树财 | Positioning apparatus of position limiter of rolling-curtain door machine |
| CN201850990U (en) * | 2010-11-03 | 2011-06-01 | 宜昌四八二○机电有限公司 | Sheave type lead screw limiter |
Non-Patent Citations (1)
| Title |
|---|
| JP特开平10-188734A 1998.07.21 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101956518A (en) | 2011-01-26 |
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Legal Events
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| 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120725 Termination date: 20171103 |