CN108625347A - A kind of screw open-close machine crosses limiting and protecting device - Google Patents
A kind of screw open-close machine crosses limiting and protecting device Download PDFInfo
- Publication number
- CN108625347A CN108625347A CN201711110522.7A CN201711110522A CN108625347A CN 108625347 A CN108625347 A CN 108625347A CN 201711110522 A CN201711110522 A CN 201711110522A CN 108625347 A CN108625347 A CN 108625347A
- Authority
- CN
- China
- Prior art keywords
- headstock gear
- screw rod
- idle running
- transmission nut
- running groove
- 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.)
- Pending
Links
- 230000005540 biological transmission Effects 0.000 claims abstract description 20
- 238000010586 diagram Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B7/00—Barrages or weirs; Layout, construction, methods of, or devices for, making same
- E02B7/20—Movable barrages; Lock or dry-dock gates
- E02B7/26—Vertical-lift gates
- E02B7/36—Elevating mechanisms for vertical-lift gates
Abstract
The present invention relates to a kind of screw open-close machines to cross limiting and protecting device.Screw rod including headstock gear and in headstock gear, the headstock gear lower end is equipped with holder, transmission nut is equipped between the headstock gear and holder, the transmission nut is socketed on screw rod, the outer surface of the screw rod upper and lower ends is respectively equipped with annular idle running groove, the diameter of the annular idle running groove is less than the external thread diameter of transmission nut, and the length of the annular idle running groove is more than the height of transmission nut.The configuration of the present invention is simple, it is easy to operate, by adding annular idle running groove in screw rod upper and lower ends; when stroke limit failure; transmission nut is located at annular idle running groove and dallies with screw rod, effective protection headstock gear and gate, to extend the service life of headstock gear.
Description
Technical field
The present invention relates to a kind of protective devices more particularly to a kind of screw open-close machine to cross limiting and protecting device.
Background technology
Screw open-close machine is also known as worm-type open-close machine, be it is a kind of with threaded rod directly or by guide runner, connecting rod and lock
Door gate flap is connected, and screw rod moves up and down the machinery with open-close sluice gate.With the extensive development of hydraulic and hydroelectric engineering, it to be used for reservoir
Irrigated area river dykes and dams, the headstock gear in the engineering projects such as Hydraulic power station, gate are largely used.Screw open-close machine is divided into electronic open
Close the diversified forms such as machine and manual opening-closing machine, but headstock gear often will appear during the work time since stroke protects failure and
Screw rod is caused to bend, headstock gear ejection ground, it is serious gate to be caused to damage.
Invention content
In view of the foregoing drawbacks, easy to operate the purpose of the present invention is to provide a kind of simple in structure, when stroke limit failure
When, transmission nut dallies with screw rod in annular idle running groove, and effective protection headstock gear and gate extend making for headstock gear
Limiting and protecting device is crossed with a kind of screw open-close machine in service life.
The technical solution adopted in the present invention is thus：
Screw rod including headstock gear and in headstock gear, the headstock gear lower end are equipped with holder, the headstock gear and holder
Between be equipped with transmission nut, the transmission nut is socketed on screw rod, and the outer surface of the screw rod upper and lower ends is respectively equipped with ring
The diameter of shape idle running groove, the annular idle running groove is less than the external thread diameter of transmission nut, the annular groove that dallies
Length is more than the height of transmission nut.
As a further improvement of the above technical scheme, the screw rod upper and lower ends are respectively equipped with positioned at annular idle running groove
The block of end.
As a further improvement of the above technical scheme, the screw rod lower end is equipped with connecting hole.
As a further improvement of the above technical scheme, the headstock gear is manual and electric double-purpose headstock gear.
As a further improvement of the above technical scheme, the bottom surface of the annular idle running groove is smooth surface.
It is an advantage of the invention that：
The configuration of the present invention is simple, it is easy to operate, by adding annular idle running groove in screw rod upper and lower ends, when stroke limit failure
When, transmission nut is located at annular idle running groove and dallies with screw rod, and effective protection headstock gear and gate open and close to extend
The service life of machine.
Description of the drawings
Fig. 1 is the structural schematic diagram of the present invention.
1 it is headstock gear in figure, 2 be screw rod, 3 be holder, 4 be transmission nut, 5 be annular idle running groove, 6 be block, 7 is
Connecting hole.
Specific implementation mode
A kind of screw open-close machine crosses limiting and protecting device, including headstock gear 1 and the screw rod 2 in headstock gear 1, described to open
It closes 1 lower end of machine and holder 3 is installed, transmission nut 4 is equipped between the headstock gear 1 and holder 3, the transmission nut 4 is socketed in
On screw rod 2, the outer surface of 2 upper and lower ends of the screw rod is respectively equipped with annular idle running groove 5, annular the straight of groove 5 of dallying
Diameter is less than the external thread diameter of transmission nut 4, and the length of the annular idle running groove 5 is more than the height of transmission nut 4.
As a further improvement of the above technical scheme, 2 upper and lower ends of the screw rod are respectively equipped with recessed positioned at annular idle running
The block 6 of 5 end of slot.
As a further improvement of the above technical scheme, 2 lower end of the screw rod is equipped with connecting hole 7.
As a further improvement of the above technical scheme, the headstock gear 1 is manual and electric double-purpose headstock gear.
As a further improvement of the above technical scheme, the bottom surface of the annular idle running groove 5 is smooth surface.
It is emphasized that：Example the above is only the implementation of the present invention is not intended to limit the scope of the invention,
It is every to utilize equivalent structure or equivalent flow shift made by description of the invention and accompanying drawing content, it is applied directly or indirectly in
Other related technical areas are included within the scope of the present invention.
Claims (5)
1. a kind of screw open-close machine crosses limiting and protecting device, which is characterized in that the screw rod including headstock gear and in headstock gear,
The headstock gear lower end is equipped with holder, and transmission nut is equipped between the headstock gear and holder, and the transmission nut is socketed in
On screw rod, the outer surface of the screw rod upper and lower ends is respectively equipped with annular idle running groove, and the diameter of the annular idle running groove is small
It is more than the height of transmission nut in the length of the external thread diameter of transmission nut, the annular idle running groove.
2. a kind of screw open-close machine according to claim 1 crosses limiting and protecting device, which is characterized in that above and below the screw rod
Both ends are respectively equipped with the block positioned at annular idle running groove ends.
3. a kind of screw open-close machine according to claim 1 crosses limiting and protecting device, which is characterized in that the screw rod lower end
Equipped with connecting hole.
4. a kind of screw open-close machine according to claim 1 crosses limiting and protecting device, which is characterized in that the headstock gear is
Manual and electric double-purpose headstock gear.
5. a kind of screw open-close machine according to claim 1 crosses limiting and protecting device, which is characterized in that the annular idle running
The bottom surface of groove is smooth surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711110522.7A CN108625347A (en) | 2017-11-12 | 2017-11-12 | A kind of screw open-close machine crosses limiting and protecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711110522.7A CN108625347A (en) | 2017-11-12 | 2017-11-12 | A kind of screw open-close machine crosses limiting and protecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108625347A true CN108625347A (en) | 2018-10-09 |
Family
ID=63705777
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711110522.7A Pending CN108625347A (en) | 2017-11-12 | 2017-11-12 | A kind of screw open-close machine crosses limiting and protecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108625347A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060113045A1 (en) * | 2003-01-30 | 2006-06-01 | Tal Padan | Door shutter mechanism |
| JP2011157171A (en) * | 2010-01-29 | 2011-08-18 | Mitsubishi Electric Fa Industrial Products Corp | Rope hoist |
| CN104328769A (en) * | 2014-10-11 | 2015-02-04 | 四川凯泓水利机械制造有限公司 | Screw type open-close system for radial gate |
| CN105155480A (en) * | 2015-10-08 | 2015-12-16 | 安徽河海水利水电机械维护有限公司 | Rotating rod type gate hoist |
| CN206172289U (en) * | 2016-10-26 | 2017-05-17 | 仪征正乾机械有限公司 | Electric valve |
| CN207525715U (en) * | 2017-11-12 | 2018-06-22 | 江苏润源水务设备有限公司 | A kind of screw open-close machine crosses limiting and protecting device |
-
2017
- 2017-11-12 CN CN201711110522.7A patent/CN108625347A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060113045A1 (en) * | 2003-01-30 | 2006-06-01 | Tal Padan | Door shutter mechanism |
| JP2011157171A (en) * | 2010-01-29 | 2011-08-18 | Mitsubishi Electric Fa Industrial Products Corp | Rope hoist |
| CN104328769A (en) * | 2014-10-11 | 2015-02-04 | 四川凯泓水利机械制造有限公司 | Screw type open-close system for radial gate |
| CN105155480A (en) * | 2015-10-08 | 2015-12-16 | 安徽河海水利水电机械维护有限公司 | Rotating rod type gate hoist |
| CN206172289U (en) * | 2016-10-26 | 2017-05-17 | 仪征正乾机械有限公司 | Electric valve |
| CN207525715U (en) * | 2017-11-12 | 2018-06-22 | 江苏润源水务设备有限公司 | A kind of screw open-close machine crosses limiting and protecting device |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |