CN205990186U - A kind of crane loading weight-limiting apparatus - Google Patents
A kind of crane loading weight-limiting apparatus Download PDFInfo
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- CN205990186U CN205990186U CN201620979089.5U CN201620979089U CN205990186U CN 205990186 U CN205990186 U CN 205990186U CN 201620979089 U CN201620979089 U CN 201620979089U CN 205990186 U CN205990186 U CN 205990186U
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- weight limit
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- freight weight
- hook
- crane
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Abstract
This utility model is related to a kind of crane loading weight-limiting apparatus, can effectively solving crane for hoisting freight weight limit mark problem, technical scheme is, including the movable pulley installing around on a steel cord and hook, movable pulley is contained on hold-down support by rotating shaft, hold-down support bottom is through spring equipped with hook, hook side is provided with the freight weight limit mark rod vertically extending downwards on hold-down support, the lower end of freight weight limit mark rod is less than the lower end of spring, this utility model structure novel and unique, advantages of simple, easily produce, low cost, identified by freight weight limit, prevent because the lifting indefinite potential safety hazard causing of Item Weight, easy to use, effect is good, there is good Social and economic benef@.
Description
Technical field
This utility model is related to crane hook, particularly a kind of crane loading weight-limiting apparatus.
Background technology
Fused cast refractories casting industry, from job shop to electric furnace shop or sand mold workshop, work object is from tens kilograms
To tens of tons, the carrying of object is by beam cranes handling mostly, and different workshops configures the power of crane not
Configure one ton or two tons of cranes with, job shop, composing room configures five tons of cranes, electric furnace shop configure five tons, ten
Ton, 20 tons of cranes.Crane for hoisting does not allow beyond tonnage, otherwise just has security incident.The meeting when being weighed with crane
Hang up electronic platform scale, other situations do not hang electronic platform scale, also have the object many times needing handling to fail to understand weight, some objects are not yet
Its weight can be judged, blindly using crane loading, be first the safety of crane facility, in addition also have personal potential safety hazard,
Once there is a company to use crane for hoisting overweight object, and caused crane to fall, lead to the grieved accident that people's life loses, because
The freight weight limit of this crane for hoisting article can not be careless, and crane does not have freight weight limit handling labelling in the urgent need to improving yet.
Content of the invention
For above-mentioned situation, for overcoming the defect of prior art, the purpose of this utility model is exactly to provide a kind of crane
Lifting weight-limiting apparatus, can effectively solving crane for hoisting freight weight limit mark problem.
The technical scheme that this utility model solves is that a kind of crane loading weight-limiting apparatus, including installing around on a steel cord
Movable pulley and hook, movable pulley is contained on hold-down support by rotating shaft, and hold-down support bottom links up with one through spring equipped with hook
Side is provided with the freight weight limit mark rod vertically extending downwards on hold-down support, and the lower end of freight weight limit mark rod is less than the lower end of spring.
This utility model structure novel and unique, advantages of simple, easily produce, low cost, identified by freight weight limit, prevented because
The lifting indefinite potential safety hazard causing of Item Weight, easy to use, effect is good, has good Social and economic benef@.
Brief description
Fig. 1 is the sectional front view of sand mold to be planished.
Fig. 2 is side view of the present utility model.
Specific embodiment
Below in conjunction with accompanying drawing, specific embodiment of the present utility model is described in further detail.
Be given by Fig. 1-2, this utility model includes installing around movable pulley 1 on a steel cord and hook 5, and movable pulley 1 passes through
Rotating shaft 8 is contained on hold-down support 2, and through spring 4 equipped with hook 5, hook 5 sides are arranged on hold-down support 2 for hold-down support 2 bottom
There is the freight weight limit mark rod 6 vertically extending downwards, the lower end of freight weight limit mark rod 6 is less than the lower end of spring.
For ensureing using effect, the lower end of described freight weight limit mark rod 6 is provided with the level of convenient observation with reference to bar 7, sees
Examine more directly perceived；
The length of described freight weight limit mark rod 6 is L, and the initial length of spring 4 is l, the gravity of freight weight limit is F, then spring
Coefficient of elasticity k=F/ (L-l), that is, from different springs, the gravity of lifting freight weight limit is F=mg to the crane of different freight weight limit tonnages,
Lifting m is limited heavy amount, and g is acceleration of gravity.
When this utility model uses, crane is lifted by crane by hook, and under gravity, spring extends, and works as lower spring end
During beyond freight weight limit mark rod lower end, represent that the article gravity that band hangs exceeds the freight weight limit of crane it should stop handling immediately, with now
Technology is had to compare, this utility model structure novel and unique, advantages of simple, easily produce, low cost, identified by freight weight limit, Ke Yizhi
That sees observes the freight weight limit whether article to be hung exceed crane, has prevented because the lifting indefinite safety causing of Item Weight is hidden
Suffer from, easy to use, effect is good, has good Social and economic benef@.
Claims (3)
1. a kind of crane loading weight-limiting apparatus, including the movable pulley installing around on a steel cord（1）And hook（5）, its feature exists
In movable pulley（1）By rotating shaft（8）It is contained in hold-down support（2）On, hold-down support（2）Bottom is through spring（4）Equipped with hook（5）,
Hook（5）Side is in hold-down support（2）On be provided with the freight weight limit mark rod vertically extending downwards（6）, freight weight limit mark rod（6）Under
End is less than the lower end of spring.
2. crane loading weight-limiting apparatus according to claim 1 are it is characterised in that described freight weight limit mark rod（6）'s
Lower end is provided with the level of convenient observation with reference to bar（7）.
3. crane loading weight-limiting apparatus according to claim 1 are it is characterised in that described freight weight limit mark rod（6）'s
Length is L, spring（4）Initial length be l, the gravity of freight weight limit is F, then coefficient of elasticity k=F/ (L-l) of spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620979089.5U CN205990186U (en) | 2016-08-30 | 2016-08-30 | A kind of crane loading weight-limiting apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620979089.5U CN205990186U (en) | 2016-08-30 | 2016-08-30 | A kind of crane loading weight-limiting apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205990186U true CN205990186U (en) | 2017-03-01 |
Family
ID=58105793
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620979089.5U Active CN205990186U (en) | 2016-08-30 | 2016-08-30 | A kind of crane loading weight-limiting apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205990186U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109573825A (en) * | 2019-01-25 | 2019-04-05 | 山西双环重工集团有限公司 | Hoisting device and hanging device |
-
2016
- 2016-08-30 CN CN201620979089.5U patent/CN205990186U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109573825A (en) * | 2019-01-25 | 2019-04-05 | 山西双环重工集团有限公司 | Hoisting device and hanging device |
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| GR01 | Patent grant |