CN105174027B - Determination method for maximum hoisting capacities of old chain link and old sling - Google Patents
Determination method for maximum hoisting capacities of old chain link and old sling Download PDFInfo
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- CN105174027B CN105174027B CN201510319110.9A CN201510319110A CN105174027B CN 105174027 B CN105174027 B CN 105174027B CN 201510319110 A CN201510319110 A CN 201510319110A CN 105174027 B CN105174027 B CN 105174027B
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Abstract
The present invention discloses a determination method for the maximum hoisting capacities of old chain link and old sling, and belongs to the technical field of sling. The determination method comprises: (1) detecting old chain link; and (2) according to the detection result, determining the maximum hoisting capacity of the old chain link, wherein the maximum hoisting capacity of the old chain link is 95% of the maximum hoisting capacity of the new product when the elongation a is less than or equal to 2% of the new product length, the maximum hoisting capacity of the old chain link is 90% of the maximum hoisting capacity of the new product when the elongation a is more than 2% of the new product length and is less than or equal to 3% of the new product length, the maximum hoisting capacity of the old chain link is 85% of the maximum hoisting capacity of the new product when the elongation a is more than 3% of the new product length and is less than or equal to 4% of the new product length, the maximum hoisting capacity of the old chain link is 75% of the maximum hoisting capacity of the new product when the elongation a is more than 4% of the new product length and is less than 5% of the new product length, and the old chain link is rejected when the elongation a is more than or equal to 5% of the new product length. The determination method of the present invention has characteristics of convenience, rapidness and complete safety risk eliminating.
Description
Technical field
The present invention relates to Current Collector Sleave technical field, in particular to sentencing for old chain ring and the old Current Collector Sleave biggest lifting capacity
Disconnected method.
Background technology
Current Collector Sleave is made up of multiple chain links, as the important auxiliary tool during weight lifting, is arranged in pairs or groups with lifting appliance
Use.Current Collector Sleave in use, is often subject to be exposed to the sun, is drenched with rain and gravity stretching in suspension hook and the junction for hanging thing
Deng effect, it is necessary to rational maintenance is carried out to Current Collector Sleave and regularly inspection, detection, to guarantee its shape all the time in safety
State.In routine inspection, associated components are tested according to different specified periods, generally comprise the inspection to rigging itself
With the test portion to accessory.In routine use, without touchstone, Current Collector Sleave could when only reaching Rejection standard for Current Collector Sleave
Stop using, for without obvious permanent deformation, crackle or groove, the degree of wear not up to Rejection standard such as little do not occur but ground
The situation of damage, there is presently no corresponding examination criteria, cannot also judge the actual bearer ability of Current Collector Sleave.If according to new product most
Big elevating capacity carries out lifting operation, Current Collector Sleave phenomenon of rupture easily occurs, there is potential safety hazard.
The content of the invention
For sentencing for above-mentioned problems of the prior art, present invention offer old chain ring and the old Current Collector Sleave biggest lifting capacity
Disconnected method, carries out old chain ring using the method and when the old Current Collector Sleave biggest lifting capacity judges, it is only necessary to the elongation to old chain ring
Measure with wear extent, you can judge the biggest lifting capacity of the biggest lifting capacity and old Current Collector Sleave of old chain ring, it is convenient and swift,
Eliminate safe hidden trouble.
For achieving the above object, the present invention provides following technical scheme：
A kind of determination methods of the old chain ring biggest lifting capacity, comprise the following steps：
(1) detection content includes to be detected to old chain ring：Elongation a, circular arc portion diameter wear extent b and line part
Divide diameter wear extent c；
(2) testing result according to step (1), judges the biggest lifting capacity of old chain ring according to following scope：
For elongation a：The 2% of a≤new product length, the biggest lifting capacity of old chain ring is the new product biggest lifting capacity
95%；The 3% of the 2% ＜ a≤new product length of new product length, the biggest lifting capacity of old chain ring is the new product biggest lifting capacity
90%；The 4% of the 3% ＜ a≤new product length of new product length, the biggest lifting capacity of old chain ring is the new product biggest lifting capacity
85%；The 5% of 4% ＜ a ＜ new product length of new product length, the biggest lifting capacity of old chain ring is the new product biggest lifting capacity
75%；The 5% of a >=new product length, old chain ring is scrapped；
For circular arc portion diameter wear extent b：The 8% of b≤new product diameter, the biggest lifting capacity of old chain ring is that new product is maximum
The 95% of lifting capacity；The 12% of the 8% ＜ b≤new product diameter of new product diameter, the biggest lifting capacity of old chain ring is that new product is maximum to be risen
The 90% of weight；The 16% of the 12% ＜ b≤new product diameter of new product diameter, the biggest lifting capacity of old chain ring is new product maximum lifting
The 85% of amount；The 20% of 16% ＜ b ＜ new product diameters of new product diameter, the biggest lifting capacity of old chain ring is the new product biggest lifting capacity
75%；The 20% of b >=new product diameter, old chain ring is scrapped；
For straight line portion diameter wear extent c：The 4% of c≤new product diameter, the biggest lifting capacity of old chain ring is that new product is maximum
The 95% of lifting capacity；The 6% of the 4% ＜ c≤new product diameter of new product diameter, the biggest lifting capacity of old chain ring is new product maximum lifting
The 90% of amount；The 8% of the 6% ＜ c≤new product diameter of new product diameter, the biggest lifting capacity of old chain ring is the new product biggest lifting capacity
85%；The 10% of 8% ＜ c ＜ new product diameters of new product diameter, the biggest lifting capacity of old chain ring is the new product biggest lifting capacity
75%；The 10% of c >=new product diameter, old chain ring is scrapped；
During judgement, the biggest lifting capacity of 3 Geju City chain links is obtained according to a, b and c, take the minima in 3 as old chain ring
The biggest lifting capacity.
Further, before the detection, also include carrying out old chain ring cleaning until the step of exposing metallic luster.
Separately, the present invention also provides a kind of determination methods of the old Current Collector Sleave biggest lifting capacity, and the old Current Collector Sleave includes at least 2
Geju City chain link, the determination methods are comprised the following steps：
(1) detection content includes to be detected to all old chain rings of old Current Collector Sleave：Elongation a, circular arc portion diameter mill
Damage amount b and straight line portion diameter wear extent c；
(2) testing result according to step (1), judges the maximum lifting of each old chain ring one by one according to following scope
Amount：
For elongation a：The 2% of a≤new product length, the biggest lifting capacity of old chain ring is the new product biggest lifting capacity
95%；The 3% of the 2% ＜ a≤new product length of new product length, the biggest lifting capacity of old chain ring is the new product biggest lifting capacity
90%；The 4% of the 3% ＜ a≤new product length of new product length, the biggest lifting capacity of old chain ring is the new product biggest lifting capacity
85%；The 5% of 4% ＜ a ＜ new product length of new product length, the biggest lifting capacity of old chain ring is the new product biggest lifting capacity
75%；The 5% of a >=new product length, old chain ring is scrapped；
For circular arc portion diameter wear extent b：The 8% of b≤new product diameter, the biggest lifting capacity of old chain ring is that new product is maximum
The 95% of lifting capacity；The 12% of the 8% ＜ b≤new product diameter of new product diameter, the biggest lifting capacity of old chain ring is that new product is maximum to be risen
The 90% of weight；The 16% of the 12% ＜ b≤new product diameter of new product diameter, the biggest lifting capacity of old chain ring is new product maximum lifting
The 85% of amount；The 20% of 16% ＜ b ＜ new product diameters of new product diameter, the biggest lifting capacity of old chain ring is the new product biggest lifting capacity
75%；The 20% of b >=new product diameter, old chain ring is scrapped；
For straight line portion diameter wear extent c：The 4% of c≤new product diameter, the biggest lifting capacity of old chain ring is that new product is maximum
The 95% of lifting capacity；The 6% of the 4% ＜ c≤new product diameter of new product diameter, the biggest lifting capacity of old chain ring is new product maximum lifting
The 90% of amount；The 8% of the 6% ＜ c≤new product diameter of new product diameter, the biggest lifting capacity of old chain ring is the new product biggest lifting capacity
85%；The 10% of 8% ＜ c ＜ new product diameters of new product diameter, the biggest lifting capacity of old chain ring is the new product biggest lifting capacity
75%；The 10% of c >=new product diameter, old chain ring is scrapped；
During judgement, for each old chain ring, the biggest lifting capacity of 3 old chain rings is obtained according to a, b and c, taken in 3
The biggest lifting capacity of the minima as the old chain ring, obtains the biggest lifting capacity of all old chain rings；
(3) biggest lifting capacity of all old chain rings for obtaining step (2) is compared, and takes minima therein, as
The biggest lifting capacity of old Current Collector Sleave.
Further, before the detection, also include carrying out the old chain ring of old Current Collector Sleave cleaning until exposing metallic luster
The step of.
Separately, the present invention also provides a kind of determination methods of the old Current Collector Sleave biggest lifting capacity, and the old Current Collector Sleave includes at least 2
Geju City chain link, the determination methods are comprised the following steps：
(1) detection content includes to be detected to all old chain rings of old Current Collector Sleave：Elongation a, circular arc portion diameter mill
Damage amount b and straight line portion diameter wear extent c；
(2) step (1) testing result that obtains is contrasted, takes maximum A in all elongation a, all circular arc portions straight
The maximum C in maximum B, all straight line portion diameter wear extenies c in wear extent b of footpath, judges old hanging according to following scope
The biggest lifting capacity of rigging：
For elongation A：The 2% of A≤new product length, the biggest lifting capacity of old chain ring is the new product biggest lifting capacity
95%；The 3% of the 2% ＜ A≤new product length of new product length, the biggest lifting capacity of old chain ring is the new product biggest lifting capacity
90%；The 4% of the 3% ＜ A≤new product length of new product length, the biggest lifting capacity of old chain ring is the new product biggest lifting capacity
85%；The 5% of 4% ＜ A ＜ new product length of new product length, the biggest lifting capacity of old chain ring is the new product biggest lifting capacity
75%；The 5% of A >=new product length, old chain ring is scrapped；
For circular arc portion diameter wear extent B：The 8% of B≤new product diameter, the biggest lifting capacity of old chain ring is that new product is maximum
The 95% of lifting capacity；The 12% of the 8% ＜ B≤new product diameter of new product diameter, the biggest lifting capacity of old chain ring is that new product is maximum to be risen
The 90% of weight；The 16% of the 12% ＜ B≤new product diameter of new product diameter, the biggest lifting capacity of old chain ring is new product maximum lifting
The 85% of amount；The 20% of 16% ＜ B ＜ new product diameters of new product diameter, the biggest lifting capacity of old chain ring is the new product biggest lifting capacity
75%；The 20% of B >=new product diameter, old chain ring is scrapped；
For straight line portion diameter wear extent C：The 4% of C≤new product diameter, the biggest lifting capacity of old chain ring is that new product is maximum
The 95% of lifting capacity；The 6% of the 4% ＜ C≤new product diameter of new product diameter, the biggest lifting capacity of old chain ring is new product maximum lifting
The 90% of amount；The 8% of the 6% ＜ C≤new product diameter of new product diameter, the biggest lifting capacity of old chain ring is the new product biggest lifting capacity
85%；The 10% of 8% ＜ C ＜ new product diameters of new product diameter, the biggest lifting capacity of old chain ring is the new product biggest lifting capacity
75%；The 10% of C >=new product diameter, old chain ring is scrapped；
During judgement, the biggest lifting capacity of 3 Geju City chain links is obtained according to A, B and C, take the minima in 3 as old hoist cable
The biggest lifting capacity of tool.
Further, before the detection, also include carrying out the old chain ring of old Current Collector Sleave cleaning until exposing metallic luster
The step of.
Beneficial effects of the present invention are as follows：
1st, the present inventor has obtained elongation and the abrasion of old chain ring according to long-term work experience and many experiments
The corresponding relation of amount and its biggest lifting capacity, the present invention are applied to the Current Collector Sleave of different size, judge convenient and swift, are completely eliminated
Potential safety hazard；
2nd, the present invention all detected to 3 of old chain ring parts, the old chain ring for obtaining and the maximum lifting of old Current Collector Sleave
Amount is reliable；
3rd, to first clearing up before the detection of old chain ring, the debris such as the rust of old chain ring surface are removed, makes testing result more accurate
Really.
Description of the drawings
Structural representations of the Fig. 1 for the chain link of Current Collector Sleave.
Specific embodiment
In order that those skilled in the art more fully understand technical scheme, it is with reference to the accompanying drawing of the present invention, right
Technical scheme carries out clear, complete description, and based on the embodiment in the application, those of ordinary skill in the art exist
Other the similar embodiments obtained on the premise of not making creative work, should all belong to the scope of the application protection.
Embodiment one：
The determination methods of the old chain ring biggest lifting capacity, comprise the following steps：
(1) to make testing result more accurate, to the cleaning of old chain ring until exposing metallic luster, then which is detected,
Detection content includes：As shown in figure 1, elongation a, 2 diameter wear extent c of 1 diameter wear extent b of circular arc portion and straight line portion, this
Invention all detected to 3 of old chain ring parts, the old chain ring biggest lifting capacity reliability for obtaining；
(2) testing result according to step (1), judges the biggest lifting capacity of old chain ring according to following scope：
For elongation a：The 2% of a≤new product length, the biggest lifting capacity of old chain ring is the new product biggest lifting capacity
95%；The 3% of the 2% ＜ a≤new product length of new product length, the biggest lifting capacity of old chain ring is the new product biggest lifting capacity
90%；The 4% of the 3% ＜ a≤new product length of new product length, the biggest lifting capacity of old chain ring is the new product biggest lifting capacity
85%；The 5% of 4% ＜ a ＜ new product length of new product length, the biggest lifting capacity of old chain ring is the new product biggest lifting capacity
75%；The 5% of a >=new product length, old chain ring reaches Rejection standard, is scrapped；
For 1 diameter wear extent b of circular arc portion：The 8% of b≤new product diameter, the biggest lifting capacity of old chain ring be new product most
The 95% of big elevating capacity；The 12% of the 8% ＜ b≤new product diameter of new product diameter, the biggest lifting capacity of old chain ring is that new product is maximum
The 90% of lifting capacity；The 16% of the 12% ＜ b≤new product diameter of new product diameter, the biggest lifting capacity of old chain ring is that new product is maximum to be risen
The 85% of weight；The 20% of 16% ＜ b ＜ new product diameters of new product diameter, the biggest lifting capacity of old chain ring is new product maximum lifting
The 75% of amount；The 20% of b >=new product diameter, old chain ring reaches Rejection standard, is scrapped；
For 2 diameter wear extent c of straight line portion：The 4% of c≤new product diameter, the biggest lifting capacity of old chain ring be new product most
The 95% of big elevating capacity；The 6% of the 4% ＜ c≤new product diameter of new product diameter, the biggest lifting capacity of old chain ring is that new product is maximum to be risen
The 90% of weight；The 8% of the 6% ＜ c≤new product diameter of new product diameter, the biggest lifting capacity of old chain ring is the new product biggest lifting capacity
85%；The 10% of 8% ＜ c ＜ new product diameters of new product diameter, the biggest lifting capacity of old chain ring is the new product biggest lifting capacity
75%；The 10% of c >=new product diameter, old chain ring reaches Rejection standard, is scrapped；
During judgement, the biggest lifting capacity of 3 Geju City chain links is obtained according to a, b and c, take the minima in 3 as old chain ring
The biggest lifting capacity.
For example, the testing result of an old chain ring is：A is new for 10%, c of new product diameter for 0.5%, b of new product length
The 2% of product diameter, then the biggest lifting capacity of the old chain ring is the 90% of the new product biggest lifting capacity.
The testing result of another old chain ring is：A is new product diameter for 8%, c of new product diameter for 3%, b of new product length
12%, then the old chain ring reach Rejection standard, scrapped.
One old Current Collector Sleave is made up of 5 Geju City chain links, wherein the testing result of an old chain ring：A is that 1%, b of new product length is
10%, c of new product diameter for new product diameter 2%, then the biggest lifting capacity of the chain link is the 90% of the new product biggest lifting capacity, according to
It is secondary to analogize, detect that the biggest lifting capacity of remaining 4 chain link is respectively 90%, 75%, 85% and the 95% of new product lifting capacity, then
The biggest lifting capacity of the old Current Collector Sleave is wherein minima, as the 75% of new product lifting capacity.
Another old Current Collector Sleave is made up of 3 Geju City chain links, 3 Geju City chain links is first cleared up so as to expose metallic luster, so
Detected respectively afterwards, testing result：Elongation a is 1.5%, 0.7% and 4% respectively, diameter wear extent b of circular arc portion 1
It is 12%, 5% and 18% respectively, diameter wear extent c of straight line portion 2 is 3%, 5% and 7% respectively, advanced to measurement result
Row size contrast, choose a in maximum A be 4%, b in maximum B be 18%, c in maximum C be 7%, according to above-mentioned standard
Judge that the corresponding biggest lifting capacity of A, B and C is 85%, 75% and the 85% of the new product biggest lifting capacity respectively, then select minima,
That is the 75% of the new product biggest lifting capacity, as the biggest lifting capacity of old Current Collector Sleave.
In addition, if any one old chain ring of old Current Collector Sleave reaches Rejection standard, whole old Current Collector Sleave is scrapped.The present invention
Inventor according to long-term work experience and many experiments, obtained the elongation and wear extent and its biggest lifting capacity of old chain ring
Corresponding relation, the present invention be applied to different size Current Collector Sleave, judge convenient and swift, potential safety hazard be completely eliminated.
Moreover, it will be appreciated that although this specification is been described by according to embodiment, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of description is only that those skilled in the art should for clarity
Using description as an entirety, the technical scheme in each embodiment can also Jing it is appropriately combined, form those skilled in the art
Understandable other embodiment.
Claims (6)
1. to old chain ring, a kind of determination methods of the old chain ring biggest lifting capacity, detect that detection content includes：Straight line portion is straight
Footpath wear extent c；
For straight line portion diameter wear extent c：The 4% of c≤new product diameter, the biggest lifting capacity of old chain ring is new product maximum lifting
The 95% of amount；The 6% of the 4% ＜ c≤new product diameter of new product diameter, the biggest lifting capacity of old chain ring is the new product biggest lifting capacity
90%；The 8% of the 6% ＜ c≤new product diameter of new product diameter, the biggest lifting capacity of old chain ring is the new product biggest lifting capacity
85%；The 10% of 8% ＜ c ＜ new product diameters of new product diameter, the biggest lifting capacity of old chain ring is the new product biggest lifting capacity
75%；The 10% of c >=new product diameter, old chain ring is scrapped；
Characterized in that, further comprising the steps of：
(1) detection content also includes to be detected to old chain ring：Elongation a and circular arc portion diameter wear extent b；
(2) testing result according to step (1), judges the biggest lifting capacity of old chain ring according to following scope：For elongation a：a
The 2% of≤new product length, the biggest lifting capacity of old chain ring is the 95% of the new product biggest lifting capacity；2% ＜ a of new product length≤new
The 3% of product length, the biggest lifting capacity of old chain ring is the 90% of the new product biggest lifting capacity；The 3% ＜ a≤new product of new product length is long
The 4% of degree, the biggest lifting capacity of old chain ring is the 85% of the new product biggest lifting capacity；4% ＜ a ＜ new product length of new product length
5%, the biggest lifting capacity of old chain ring is the 75% of the new product biggest lifting capacity；The 5% of a >=new product length, old chain ring is scrapped；
For circular arc portion diameter wear extent b：The 8% of b≤new product diameter, the biggest lifting capacity of old chain ring is new product maximum lifting
The 95% of amount；The 12% of the 8% ＜ b≤new product diameter of new product diameter, the biggest lifting capacity of old chain ring is the new product biggest lifting capacity
90%；The 16% of the 12% ＜ b≤new product diameter of new product diameter, the biggest lifting capacity of old chain ring is the new product biggest lifting capacity
85%；The 20% of 16% ＜ b ＜ new product diameters of new product diameter, the biggest lifting capacity of old chain ring is the new product biggest lifting capacity
75%；The 20% of b >=new product diameter, old chain ring is scrapped；
During judgement, the biggest lifting capacity of 3 Geju City chain links is obtained according to a, b and c, take the minima in 3 as old chain ring most
Big elevating capacity.
2. determination methods of the old chain ring biggest lifting capacity according to claim 1, it is characterised in that before the detection, also
Carry out clearing up the step of metallic luster is exposed including to old chain ring.
3. a kind of determination methods of the old Current Collector Sleave biggest lifting capacity, the old Current Collector Sleave includes at least 2 Geju City chain links, to old hoist cable
All old chain rings of tool are detected that detection content includes：Straight line portion diameter wear extent c；
For straight line portion diameter wear extent c：The 4% of c≤new product diameter, the biggest lifting capacity of old chain ring is new product maximum lifting
The 95% of amount；The 6% of the 4% ＜ c≤new product diameter of new product diameter, the biggest lifting capacity of old chain ring is the new product biggest lifting capacity
90%；The 8% of the 6% ＜ c≤new product diameter of new product diameter, the biggest lifting capacity of old chain ring is the new product biggest lifting capacity
85%；The 10% of 8% ＜ c ＜ new product diameters of new product diameter, the biggest lifting capacity of old chain ring is the new product biggest lifting capacity
75%；The 10% of c >=new product diameter, old chain ring is scrapped；
Characterized in that, the determination methods are further comprising the steps of：
(1) detection content also includes to be detected to all old chain rings of old Current Collector Sleave：Elongation a and circular arc portion diameter mill
Damage amount b；
(2) testing result according to step (1), judges the maximum lifting of each old chain ring one by one according to following scope
Amount：For elongation a：The 2% of a≤new product length, the biggest lifting capacity of old chain ring is the 95% of the new product biggest lifting capacity；New product
The 3% of the 2% ＜ a≤new product length of length, the biggest lifting capacity of old chain ring is the 90% of the new product biggest lifting capacity；New product length
3% ＜ a≤new product length 4%, the biggest lifting capacity of old chain ring for the new product biggest lifting capacity 85%；New product length
The 5% of 4% ＜ a ＜ new product length, the biggest lifting capacity of old chain ring is the 75% of the new product biggest lifting capacity；A >=new product length
5%, old chain ring is scrapped；
For circular arc portion diameter wear extent b：The 8% of b≤new product diameter, the biggest lifting capacity of old chain ring is new product maximum lifting
The 95% of amount；The 12% of the 8% ＜ b≤new product diameter of new product diameter, the biggest lifting capacity of old chain ring is the new product biggest lifting capacity
90%；The 16% of the 12% ＜ b≤new product diameter of new product diameter, the biggest lifting capacity of old chain ring is the new product biggest lifting capacity
85%；The 20% of 16% ＜ b ＜ new product diameters of new product diameter, the biggest lifting capacity of old chain ring is the new product biggest lifting capacity
75%；The 20% of b >=new product diameter, old chain ring is scrapped；
During judgement, for each old chain ring, the biggest lifting capacity of 3 old chain rings is obtained according to a, b and c, take the minimum in 3
It is worth the biggest lifting capacity as the old chain ring, obtains the biggest lifting capacity of all old chain rings；
(3) biggest lifting capacity of all old chain rings for obtaining step (2) is compared, and takes minima therein, as old to hang
The biggest lifting capacity of rigging.
4. determination methods of the old Current Collector Sleave biggest lifting capacity according to claim 3, it is characterised in that before the detection,
Also include carrying out the old chain ring of old Current Collector Sleave cleaning until the step of exposing metallic luster.
5. a kind of determination methods of the old Current Collector Sleave biggest lifting capacity, the old Current Collector Sleave includes at least 2 Geju City chain links, to old hoist cable
All old chain rings of tool are detected that detection content includes：Straight line portion diameter wear extent c；
For straight line portion diameter wear extent C：The 4% of C≤new product diameter, the biggest lifting capacity of old chain ring is new product maximum lifting
The 95% of amount；The 6% of the 4% ＜ C≤new product diameter of new product diameter, the biggest lifting capacity of old chain ring is the new product biggest lifting capacity
90%；The 8% of the 6% ＜ C≤new product diameter of new product diameter, the biggest lifting capacity of old chain ring is the new product biggest lifting capacity
85%；The 10% of 8% ＜ C ＜ new product diameters of new product diameter, the biggest lifting capacity of old chain ring is the new product biggest lifting capacity
75%；The 10% of C >=new product diameter, old chain ring is scrapped；
Characterized in that, the determination methods are further comprising the steps of：
(1) detection content also includes to be detected to all old chain rings of old Current Collector Sleave：Elongation a and circular arc portion diameter mill
Damage amount b；
(2) testing result that step (1) is obtained is contrasted, takes the maximum A in all elongation a, all circular arc portion diameters and grind
The maximum C in maximum B, all straight line portion diameter wear extenies c in damage amount b, judges old Current Collector Sleave according to following scope
The biggest lifting capacity：For elongation A：The 2% of A≤new product length, the biggest lifting capacity of old chain ring is the new product biggest lifting capacity
95%；The 3% of the 2% ＜ A≤new product length of new product length, the biggest lifting capacity of old chain ring is the new product biggest lifting capacity
90%；The 4% of the 3% ＜ A≤new product length of new product length, the biggest lifting capacity of old chain ring is the new product biggest lifting capacity
85%；The 5% of 4% ＜ A ＜ new product length of new product length, the biggest lifting capacity of old chain ring is the new product biggest lifting capacity
75%；The 5% of A >=new product length, old chain ring is scrapped；
For circular arc portion diameter wear extent B：The 8% of B≤new product diameter, the biggest lifting capacity of old chain ring is new product maximum lifting
The 95% of amount；The 12% of the 8% ＜ B≤new product diameter of new product diameter, the biggest lifting capacity of old chain ring is the new product biggest lifting capacity
90%；The 16% of the 12% ＜ B≤new product diameter of new product diameter, the biggest lifting capacity of old chain ring is the new product biggest lifting capacity
85%；The 20% of 16% ＜ B ＜ new product diameters of new product diameter, the biggest lifting capacity of old chain ring is the new product biggest lifting capacity
75%；The 20% of B >=new product diameter, old chain ring is scrapped；
During judgement, the biggest lifting capacity of 3 Geju City chain links is obtained according to A, B and C, take the minima in 3 as old Current Collector Sleave
The biggest lifting capacity.
6. determination methods of the old Current Collector Sleave biggest lifting capacity according to claim 5, it is characterised in that before the detection,
Also include carrying out the old chain ring of old Current Collector Sleave cleaning until the step of exposing metallic luster.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510319110.9A CN105174027B (en) | 2015-06-11 | 2015-06-11 | Determination method for maximum hoisting capacities of old chain link and old sling |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510319110.9A CN105174027B (en) | 2015-06-11 | 2015-06-11 | Determination method for maximum hoisting capacities of old chain link and old sling |
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| Publication Number | Publication Date |
|---|---|
| CN105174027A CN105174027A (en) | 2015-12-23 |
| CN105174027B true CN105174027B (en) | 2017-04-12 |
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| JPS60232305A (en) * | 1984-04-27 | 1985-11-19 | Tousoku Seimitsu Kogyo Kk | Heat-resistant chain conveyor device |
| JPH0813399B2 (en) * | 1992-09-07 | 1996-02-14 | 黒木製鎖株式会社 | Forged stud link chain, its manufacturing method and device |
| GB2373560B (en) * | 2001-03-23 | 2005-04-20 | Parsons Chain Company Ltd | Chains |
| CN102807171B (en) * | 2011-05-31 | 2016-06-29 | 株式会社日立产机系统 | Chain type electric hoist |
| CN103411506B (en) * | 2013-08-29 | 2015-12-23 | 上海大众汽车有限公司 | The inspection method of chain wear and checking tool |
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2015
- 2015-06-11 CN CN201510319110.9A patent/CN105174027B/en active Active
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