CN103021703A - Cam locking device for limit switches - Google Patents
Cam locking device for limit switches Download PDFInfo
- Publication number
- CN103021703A CN103021703A CN2012105819797A CN201210581979A CN103021703A CN 103021703 A CN103021703 A CN 103021703A CN 2012105819797 A CN2012105819797 A CN 2012105819797A CN 201210581979 A CN201210581979 A CN 201210581979A CN 103021703 A CN103021703 A CN 103021703A
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- CN
- China
- Prior art keywords
- locking unit
- locking
- cam
- travel switch
- camshaft
- 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.)
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Abstract
The invention belongs to the field of limit switches, and relates to a cam locking device for limit switches, in particular to a cam locking device provided with independent adjustment locking units and used for limit switches. Eight mutually independent locking units are arranged on a cam of the cam locking device. A lock screw of each locking unit is located on a radial end face of the cam and is used to independently adjust the position of the locking unit. One optional locking unit can be adjusted independently without moving other locking units, so that after the first locking unit is adjusted, the first locking unit is prevented from shifting to result in severely affected precision in controlling the limit switches during adjustment of the second locking unit.
Description
Technical field
The present invention relates to a kind of for the travel switch locking device, specifically relate to a kind of have independent adjust locking unit be used for travel switch camlock device, it belongs to the travel switch field.
Background technology
Along with the development of lifting industry, its requirement to crane is also improving constantly.Travel switch is the visual plant of control crane, particularly controls the travel switch of crane lifting displacement.The travel switch that generally uses at present, its camlock device is for utilizing axial friction locking, control all locking units by a locking nut, can't be implemented in and adjust one of them locking unit in the motionless situation of other locking units, and after adjusting the first locking unit, when adjusting the second locking unit, the phenomenon that the first locking unit can be offset has a strong impact on the control precision of travel switch.
Summary of the invention
In view of the problem that prior art exists, the technical solution adopted in the present invention is a kind of camlock device that is used for travel switch with independent locking unit.
To achieve these goals, the technical solution adopted in the present invention is the camlock device for travel switch, and it comprises: a camshaft and N locking unit; Described camshaft passes locking unit, and locking unit rotates take camshaft as axle; It is characterized in that: described locking unit comprises shaft with gear, trip bolt and cam; Described cam is annular, has through hole in the middle of it, and end face is provided with screw hole, and trip bolt matches with screw hole; Shaft with gear is positioned at through hole; The shaft with gear both sides are respectively equipped with pad; Described shaft with gear is disc, and it has the through hole identical with the camshaft shape, and its cylindrical circumference is provided with some v-depressions.
Described screw hole number is 2.
Described N locking unit structure is identical, and N is 8.
The number of described V-type groove is 60.
Described pad is provided with the through hole identical with the camshaft shape.
The invention has the advantages that: cam is provided with 8 separate locking units, the lock-screw of each locking unit is positioned on its cam radial end face, it independently adjusts the position of each locking unit, can in the motionless situation of other locking units, adjust separately wherein any locking unit, avoid after adjusting the first locking unit, when adjusting the second locking unit, the phenomenon that the first locking unit can be offset has a strong impact on the problem of the control precision of travel switch.
Description of drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of locking unit;
Among the figure: 1, shaft with gear, 2, trip bolt, 3, cam, 4, v-depression.
Embodiment
Be used for the camlock device of travel switch, it comprises: a camshaft and N locking unit; Described locking unit passes camshaft, and locking unit rotates take camshaft as axle; It is characterized in that: described locking unit comprises shaft with gear 1, trip bolt 2 and cam 3; Described cam 3 is annular, has through hole in the middle of it, and end face is provided with screw hole, and trip bolt 2 matches with screw hole; Shaft with gear 1 is positioned at through hole; Shaft with gear 1 both sides are respectively equipped with pad; Described shaft with gear 1 is disc, and it has in the identical through hole of camshaft shape, and its cylindrical circumference is provided with some v-depressions 4.
Described screw hole number is 2.
Described N locking unit structure is identical, and N is 8.
The number of described V-type groove is 60.
Described pad is provided with the through hole identical with the camshaft shape.
Claims (5)
1. be used for the camlock device of travel switch, it comprises: a camshaft and N locking unit; Described camshaft passes locking unit, and locking unit rotates take camshaft as axle; It is characterized in that: described locking unit comprises shaft with gear, trip bolt and cam; Described cam is annular, has through hole in the middle of it, and end face is provided with screw hole, and trip bolt matches with screw hole; Shaft with gear is positioned at through hole; The shaft with gear both sides are respectively equipped with pad; Described shaft with gear is disc, and it has the through hole identical with the camshaft shape, and its cylindrical circumference is provided with some v-depressions.
2. the camlock device for travel switch according to claim 1, it is characterized in that: described screw hole number is 2.
3. the camlock device for travel switch according to claim 1, it is characterized in that: described N locking unit structure is identical, and N is 8.
4. the camlock device for travel switch according to claim 1, it is characterized in that: the number of described V-type groove is 60.
5. the camlock device for travel switch according to claim 1, it is characterized in that: described pad is provided with the through hole identical with the camshaft shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105819797A CN103021703A (en) | 2012-12-28 | 2012-12-28 | Cam locking device for limit switches |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105819797A CN103021703A (en) | 2012-12-28 | 2012-12-28 | Cam locking device for limit switches |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103021703A true CN103021703A (en) | 2013-04-03 |
Family
ID=47970194
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012105819797A Pending CN103021703A (en) | 2012-12-28 | 2012-12-28 | Cam locking device for limit switches |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103021703A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108682574A (en) * | 2018-06-11 | 2018-10-19 | 河南森源电气股份有限公司 | A kind of disconnecting switch and its cam structure |
| CN108717912A (en) * | 2018-06-19 | 2018-10-30 | 河南森源电气股份有限公司 | Switchgear and its cam pack |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87210485U (en) * | 1987-08-25 | 1988-12-14 | 郑锡铎 | Overload limiter of hoisting machinery |
| CN2053206U (en) * | 1989-05-30 | 1990-02-21 | 杨多庆 | Safety unit for controlling limit position of winding steel wirerope |
| CN101704485A (en) * | 2009-10-30 | 2010-05-12 | 河南省黄河防爆起重机有限公司 | Double-beam bridge type crane with safety brake |
| CN202056167U (en) * | 2011-04-29 | 2011-11-30 | 大连神通电气有限公司 | Locking assembly for crane master controller |
| CN203085396U (en) * | 2012-12-28 | 2013-07-24 | 大连神通电气有限公司 | Cam locking device for travel switches |
-
2012
- 2012-12-28 CN CN2012105819797A patent/CN103021703A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87210485U (en) * | 1987-08-25 | 1988-12-14 | 郑锡铎 | Overload limiter of hoisting machinery |
| CN2053206U (en) * | 1989-05-30 | 1990-02-21 | 杨多庆 | Safety unit for controlling limit position of winding steel wirerope |
| CN101704485A (en) * | 2009-10-30 | 2010-05-12 | 河南省黄河防爆起重机有限公司 | Double-beam bridge type crane with safety brake |
| CN202056167U (en) * | 2011-04-29 | 2011-11-30 | 大连神通电气有限公司 | Locking assembly for crane master controller |
| CN203085396U (en) * | 2012-12-28 | 2013-07-24 | 大连神通电气有限公司 | Cam locking device for travel switches |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108682574A (en) * | 2018-06-11 | 2018-10-19 | 河南森源电气股份有限公司 | A kind of disconnecting switch and its cam structure |
| CN108717912A (en) * | 2018-06-19 | 2018-10-30 | 河南森源电气股份有限公司 | Switchgear and its cam pack |
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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 | ||
| C05 | Deemed withdrawal (patent law before 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130403 |