CN204752142U - Overload protection device - Google Patents
Overload protection device Download PDFInfo
- Publication number
- CN204752142U CN204752142U CN201520542540.2U CN201520542540U CN204752142U CN 204752142 U CN204752142 U CN 204752142U CN 201520542540 U CN201520542540 U CN 201520542540U CN 204752142 U CN204752142 U CN 204752142U
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- China
- Prior art keywords
- overload protection
- protection device
- overload
- travel switch
- utility
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- 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 utility model discloses a belleville spring formula overload protection device, assurance equipment is the stop work after overloading, avoids causing danger. Simultaneously, this overload protection device injects the overload value and is convenient for adjust, can rectify the overload coefficient at the disposition of equipment in -process.
Description
Technical field
The utility model relates to aerial lift device field, particularly overload protection field.
Background technology
Along with the service work of various main equipment gets more and more, the repair apparatus of high-altitude or deep-well uses more and more frequent, and in this type of equipment use, for the needs of trouble free service, the demand of overload protection equipment becomes necessary; But for technical reason, Most current repair apparatus does not design overload protection device or overload protection precision is too coarse, cause personnel and device security to there is risk.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art, adopt disk spring type overload protection device.
The technical scheme that the utility model adopts is: a kind of overload protection device, and its structure comprises: disc spring depression bar, disk spring, jam nut, travel switch, travel switch trigger board.
Compared with prior art, the beneficial effects of the utility model are convenient to regulate overload limit value, and overload value arranges more accurate, and bont is installed firmly.
Accompanying drawing explanation
Fig. 1 is overload protection device constructional drawing.
Fig. 2 is travel switch and travel switch trigger board relative position figure.
Wherein, above-mentioned accompanying drawing comprises the following drawings mark:
1, travel switch; 2, bont; 3, bogey; 4, disc spring depression bar; 5, jam nut; 6, dish twines spring; 7, disc spring pressing plate; 8 travel switch trigger board.
Detailed description of the invention
Further illustrate the utility model below in conjunction with accompanying drawing, embodiment described herein only for instruction and explanation of the utility model, and is not used in restriction the utility model.
As shown in Figure 1, travel switch 1 is relative with bont 2 fixing, and travel switch trigger board 8 is relative with bogey 3 fixing, and bont 2 and bogey 3 can relative movements.
When bogey 3 carries, disk spring 6 forced compression, bont 2 moves up, and travel switch trigger board 8 moves up simultaneously; When bogey 3 is loaded beyond limit value, travel switch trigger board 8 triggers travel switch 1, and travel switch 1 feedback signal controls bont 2 and quits work, and equipment is quit work, and avoids dangerous generation of overloading.
During design, getting monolithic disc spring characteristic line is straight line portion, and bearing part load capacity is directly proportional to travel switch trigger board moving displacement, makes overload limit value more accurate.
When overload protection device causes overload limit value to depart from former setting value because of tenure of use or other reason, desirable lower locking nut 6, suitably increases or reduces disk spring quantity, again to demarcate overload design value.
Claims (1)
1. an overload protection device, comprises spring pressure bar, disk spring, travel switch trigger board, travel switch, it is characterized in that: device forced compression component is disk spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520542540.2U CN204752142U (en) | 2015-07-24 | 2015-07-24 | Overload protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520542540.2U CN204752142U (en) | 2015-07-24 | 2015-07-24 | Overload protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204752142U true CN204752142U (en) | 2015-11-11 |
Family
ID=54466871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520542540.2U Active CN204752142U (en) | 2015-07-24 | 2015-07-24 | Overload protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204752142U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106430020A (en) * | 2016-09-14 | 2017-02-22 | 浙江鼎力机械股份有限公司 | Overload protection device and system and aerial work platform |
-
2015
- 2015-07-24 CN CN201520542540.2U patent/CN204752142U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106430020A (en) * | 2016-09-14 | 2017-02-22 | 浙江鼎力机械股份有限公司 | Overload protection device and system and aerial work platform |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |