CN102295238B - Limited heavy hammer for crane anti-overwinding switch - Google Patents
Limited heavy hammer for crane anti-overwinding switch Download PDFInfo
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- CN102295238B CN102295238B CN 201110224327 CN201110224327A CN102295238B CN 102295238 B CN102295238 B CN 102295238B CN 201110224327 CN201110224327 CN 201110224327 CN 201110224327 A CN201110224327 A CN 201110224327A CN 102295238 B CN102295238 B CN 102295238B
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- limiting stopper
- half limiting
- heavy hammer
- attachment face
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- 229910000831 Steel Inorganic materials 0.000 claims description 19
- 239000010959 steel Substances 0.000 claims description 19
- 239000000725 suspension Substances 0.000 description 5
- 230000008859 change Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005194 fractionation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000005267 amalgamation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
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Abstract
The invention discloses a limited heavy hammer for a crane anti-overwinding switch, which comprises a left-half limited block, a right-half limited block, a locking column, a nut and a locking plate, wherein the left-half limited block and the right-half limited block are pivoted together through a pin shaft and are in fan-shaped opening and closing states, and a steel-wire rope-passing hole is formed when the bonding surface of the left-half limited block and the bonding surface of the right-half limited block are closed; the nut is screwed on the locking column, the locking column is fixedly connected to one end of the right-half limited block away from the pin shaft; and the first end of the locking plate is pivoted at one end of the left-half limited block away from the pin shaft, and the second end of the locking plate is provided with an open slot which is in locking match with the locking column on the second installing surface of the right-half limited block and a sunk hole which is used for receiving the nut. The limited heavy hammer disclosed by the invention is rapid to assemble and disassemble, the quick replacement of steel-wire rope magnification can be realized, and the time for replacing the magnification can be reduced.
Description
Technical field
The present invention relates to a kind of crane anti-overwinding switch, relate in particular to the limited heavy hammer of Anti-overwinding switch.
Background technology
In the crane loading process, the height of the suspension hook of hoisting crane promotes gradually with the elevator of steel rope, and the path that promotes at suspension hook is provided with the weight hammer type Anti-overwinding switch, and this Anti-overwinding switch is also referred to as overwinding safety gears.When suspension hook touches the limited heavy hammer of Anti-overwinding switch, the Anti-overwinding switch action.
Fig. 1 shows the use constitution diagram of Anti-overwinding switch.As shown in Figure 1, Anti-overwinding switch 11 ' is installed on the arm 10 ', suspension hook steel rope 12 ' runs through limited heavy hammer 13 ', when suspension hook 14 ' upward movement lifts limited heavy hammer 13 ', limited heavy hammer 13 ' is eliminated the pulling force of Anti-overwinding switch, the signal corresponding with steel rope 12 ' pulleying sent in Anti-overwinding switch 11 ' action.
The steel rope via hole of existing limited heavy hammer is formed by a left side half limiting stopper and right half limiting stopper amalgamation together, and left half limiting stopper and right half limiting stopper link together by two bolts.When change steel rope multiplying power more, steel rope need to break away from limited heavy hammer, so need to be with two disassembling bolts, and steel rope could be deviate from from the steel rope via hole.
In hoisting crane debugging and operation, sometimes need more change steel rope multiplying power, yet the fractionation of a left side half limiting stopper of existing limited heavy hammer and right half limiting stopper is inconvenient, the attaching partss such as screw bolt and nut are easily lost.
Summary of the invention
The object of the invention is to provide the easily limited heavy hammer of crane anti-overwinding switch of a kind of fractionation.
For this reason, the invention provides a kind of limited heavy hammer of crane anti-overwinding switch, comprising: left half limiting stopper and right half limiting stopper, be articulated by bearing pin, be the fan-shaped open-close state, wherein, the face of joint of the face of joint of left half limiting stopper and right half limiting stopper forms the steel rope via hole when closure; It is upper and be positioned at a end away from bearing pin that lock and be screwed onto nut on the lock, lock are fixedly connected in the two one of left half limiting stopper or right half limiting stopper; And jam plate, first end is articulated in the two another of left half limiting stopper or right half limiting stopper and the end away from bearing pin that is positioned at, and the second end has the counterbore that lock on the second attachment face with the right side half limiting stopper is the open slot of lock fit and admits nut.
According to the limited heavy hammer of crane anti-overwinding switch of the present invention, left half limiting stopper and right half limiting stopper assembly unit and dismounting are quick, can realize the quick-replaceable of steel rope multiplying power, can reduce the time of changing multiplying power.
Further, the end away from bearing pin of an above-mentioned left side half limiting stopper has the first attachment face, has bolt on the first attachment face, and the first end of jam plate is articulated on the bolt; End away from bearing pin of left half limiting stopper has on the second attachment face, and lock is fixedly connected on the second attachment face.The handled easily personnel open the operation of jam plate or closed jam plate like this.
Further, the second attachment face of the first attachment face of an above-mentioned left side half limiting stopper and right half limiting stopper flushes when half limiting stopper and right half limiting stopper are closed on a left side mutually.Can inform that so whether left half limiting stopper of operating personal and right half limiting stopper be fully closed, if fully not closed, then not concordant, if fully closed, then flushes.
Further, the inside face of above-mentioned jam plate and the first attachment face and the second attachment face are fitted.To give a kind of feel of operating personal, make operating personal can know intuitively jam plate and whether be in place like this.
Further, in one embodiment, above-mentioned the first attachment face and the second attachment face are positioned at the side of limited heavy hammer.
Further, an above-mentioned left side half limiting stopper upper pin at one end also comprise first tangent plane parallel with the first attachment face, one end at right half limiting stopper upper pin place also comprises second tangent plane parallel with the second attachment face, wherein, the first tangent plane and the second tangent plane flush when half limiting stopper and right half limiting stopper are closed on a left side mutually.Can inform that so whether left half limiting stopper of operating personal and right half limiting stopper be fully closed, if fully not closed, then not concordant, if fully closed, then flushes.
Further, in another embodiment, above-mentioned the first attachment face and the second attachment face are positioned at the end face with hanger of limited heavy hammer.
Further, hanger is formed respectively on the top of an above-mentioned left side half limiting stopper and right half limiting stopper, wherein, limited heavy hammer by wearing hanger steel wire hang and the top of left half limiting stopper and right half limiting stopper keep horizontal attitude.
Further, above-mentioned nut is dish shape nut.Use dish shape nut, can manually screw operation, the instrument that need not other is auxiliary, convenient and swift.
Further, above-mentioned jam plate also is included in the counterbore of the admittance nut that the open slot place of jam plate arranges.So can not move screwing the fly nut rear lock plate, play the effect that prevents that limited heavy hammer from getting loose.
Except purpose described above, feature and advantage, other purpose, feature and advantage that the present invention has are described in further detail in connection with accompanying drawing.
Description of drawings
Consist of this specification sheets a part, be used for further understanding accompanying drawing of the present invention and show the preferred embodiments of the present invention, and be used for illustrating principle of the present invention with specification sheets.Among the figure:
Fig. 1 shows the use constitution diagram of the Anti-overwinding switch of prior art;
Fig. 2 is the side-looking structural representation according to the limited heavy hammer of crane anti-overwinding switch of the present invention;
Fig. 3 is the plan structure schematic diagram of the limited heavy hammer of crane anti-overwinding switch shown in Figure 2;
Fig. 4 is the structural representation of limited heavy hammer shown in Figure 2 when opening;
Fig. 5 is the schematic perspective view of the jam plate of limited heavy hammer shown in Figure 2; And
Fig. 6 is the plan sketch of the jam plate of limited heavy hammer shown in Figure 2.
The specific embodiment
Below in conjunction with accompanying drawing embodiments of the invention are elaborated, but the multitude of different ways that the present invention can be defined by the claims and cover is implemented.
Fig. 2 to Fig. 4 shows the side-looking structural representation according to the limited heavy hammer of crane anti-overwinding switch of the present invention.In conjunction with reference to Fig. 2 to Fig. 4, limited heavy hammer 10 of the present invention comprises: left half limiting stopper 11, right half limiting stopper 12, the bearing pin 13 that a left side half limiting stopper 11 and right half limiting stopper 12 are articulated, be fixedly connected on bolt 14 on left half limiting stopper 11, be fixedly connected on the lock 15 on right half limiting stopper 12 and be articulated in the jam plate 16 that is used for locking lock 15 on the bolt 14 and be screwed onto the fly nut 17 that is used for locking jam plate 16 on the lock 15.
Particularly, left half limiting stopper 11 and right half limiting stopper 12 are articulated by bearing pin 13, are the fan-shaped open-close state, and wherein, the face of joint 12a of the face of joint 11a of left half limiting stopper 11 and right half limiting stopper 12 forms steel rope via hole 10a when closure.Hanger 111,121 is formed respectively on the top of left half limiting stopper 11 and right half limiting stopper 12.Hanger 111,121 is used for by thinner steel rope limited heavy hammer 10 being lifted on the lower link of Anti-overwinding switch.
Fig. 5 and Fig. 6 show the structural representation of the jam plate 16 of limited heavy hammer, as shown in Figure 5 and Figure 6, one end of jam plate 16 is articulated on the bolt 14 of left half limiting stopper 11, and the other end has the open slot 161 that is lock fit with the lock 15 of the right side half limiting stopper 12, and this open slot 161 takes the shape of the letter U.Dish shape nut 17 is screwed onto on the lock 15, is used for manual fastening jam plate 16.
When needs more during the change steel rope multiplying power, unscrew fly nut 17, because the existence of the open slot 161 of jam plate 16 right-hand members, can be in the situation that not exclusively take off fly nut 17, by around bolt 14 left-hand revolution jam plates 16, unclamp left half limiting stopper 11 and right half limiting stopper 12, after a left side half limiting stopper 11 and 12 expansion of right half limiting stopper, take off the steel rope replacing multiplying power, can finish by reverse procedure fixing after the replacing multiplying power.
Because there is counterbore 162 at right-end openings groove 161 places of jam plate 16, can prevent from screwing the movement of fly nut 17 rear lock plates 16, have played the effect that prevents that limited heavy hammer from getting loose.
Preferably, whether the inside face of jam plate 16 and the first attachment face 112 and the second attachment face 122 are fitted, to give a kind of feel of operating personal, make operating personal can know intuitively jam plate 16 and be in place.
Preferably, the hanger 111 of left half limiting stopper 11 and the hanger 121 of right half limiting stopper 12 be positioned at limited heavy hammer 10 center of gravity directly over so that limited heavy hammer 10 keeps the sagging attitude of levels.
To embodiment shown in Figure 4, the first attachment face 112 and the second attachment face 122 are positioned at the side of limited heavy hammer 10 at Fig. 2.Left half limiting stopper 11 also comprises first tangent plane 113 parallel with the first attachment face 112, right half limiting stopper 12 also comprises second tangent plane 123 parallel with the second attachment face 122, wherein, the first tangent plane 113 and the second tangent plane 123 flush when half limiting stopper and right half limiting stopper are closed on a left side mutually, are positioned at the outside of bearing pin 13, compact conformation, and can inform whether left half limiting stopper of operating personal and right half limiting stopper be fully closed, if fully not closed, then not concordant, if fully closed, then flush.
What in other embodiments, above-mentioned the first attachment face 112 and the second attachment face 122 can be positioned at limited heavy hammer 10 has hanger 111, an end face 10b of 121.In other embodiments, above-mentioned dish shape nut can be replaced by common nut.
The limited heavy hammer of crane anti-overwinding switch of the present invention, left half limiting stopper and right half limiting stopper assembly unit and dismounting are quick, can realize the quick-replaceable of steel rope multiplying power, can reduce the time of changing multiplying power.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. the limited heavy hammer of a crane anti-overwinding switch is characterized in that, comprising:
Left half limiting stopper and right half limiting stopper are articulated by bearing pin, are the fan-shaped open-close state, and wherein, the face of joint of a described left side half limiting stopper and the face of joint of right half limiting stopper form the steel rope via hole when closure;
It is upper and be positioned at a end away from described bearing pin that lock and be screwed onto nut on the described lock, described lock are fixedly connected in the two one of left half limiting stopper or the described right side half limiting stopper; And
Jam plate, first end is articulated in the two another of a described left side half limiting stopper or right half limiting stopper and is positioned at a end away from described bearing pin, and the second end has the open slot that lock on the second attachment face with the first attachment face of a described left side half limiting stopper or the described right side half limiting stopper is lock fit.
2. the limited heavy hammer of crane anti-overwinding switch according to claim 1 is characterized in that,
End away from described bearing pin of a described left side half limiting stopper has the first attachment face, has bolt on described the first attachment face, and the first end of described jam plate is articulated on the described bolt;
End away from described bearing pin of the described right side half limiting stopper has the second attachment face, and described lock is fixedly connected on described the second attachment face.
3. the limited heavy hammer of crane anti-overwinding switch according to claim 2 is characterized in that,
The first attachment face of a described left side half limiting stopper and the second attachment face of right half limiting stopper flush when a described left side half limiting stopper and right half limiting stopper are closed mutually.
4. the limited heavy hammer of crane anti-overwinding switch according to claim 2 is characterized in that, the inside face of described jam plate and described the first attachment face and the second attachment face are fitted.
5. the limited heavy hammer of crane anti-overwinding switch according to claim 2 is characterized in that, described the first attachment face and the second attachment face are positioned at the side of described limited heavy hammer.
6. the limited heavy hammer of crane anti-overwinding switch according to claim 2, it is characterized in that, a described left side the above bearing pin of half limiting stopper at one end also comprise first tangent plane parallel with described the first attachment face, one end at the above bearing pin place of half limiting stopper, the described right side also comprises second tangent plane parallel with described the second attachment face, wherein, described the first tangent plane and the second tangent plane flush when a described left side half limiting stopper and right half limiting stopper closure mutually.
7. the limited heavy hammer of crane anti-overwinding switch according to claim 2, it is characterized in that, hanger is formed respectively on the top of a described left side half limiting stopper and right half limiting stopper, described limited heavy hammer by wearing described hanger steel wire hang and the top of a described left side half limiting stopper and right half limiting stopper keep horizontal attitude.
8. the limited heavy hammer of crane anti-overwinding switch according to claim 7 is characterized in that, described the first attachment face and the second attachment face are positioned at the end face with described hanger of described limited heavy hammer.
9. the limited heavy hammer of crane anti-overwinding switch according to claim 1 is characterized in that, described nut is dish shape nut.
10. the limited heavy hammer of each described crane anti-overwinding switch in 9 according to claim 1 is characterized in that, described jam plate also is included in the counterbore of the described nut of admittance that described open slot place arranges.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110224327 CN102295238B (en) | 2011-08-05 | 2011-08-05 | Limited heavy hammer for crane anti-overwinding switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110224327 CN102295238B (en) | 2011-08-05 | 2011-08-05 | Limited heavy hammer for crane anti-overwinding switch |
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| Publication Number | Publication Date |
|---|---|
| CN102295238A CN102295238A (en) | 2011-12-28 |
| CN102295238B true CN102295238B (en) | 2013-02-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201110224327 Active CN102295238B (en) | 2011-08-05 | 2011-08-05 | Limited heavy hammer for crane anti-overwinding switch |
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| CN (1) | CN102295238B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013020259A1 (en) * | 2011-08-05 | 2013-02-14 | 长沙中联重工科技发展股份有限公司 | Limiting weight of over-wind protection switch of crane |
| CN105293292A (en) * | 2015-11-27 | 2016-02-03 | 山东钢铁股份有限公司 | Heavy hammer type lifting height limiter and heavy hammer thereof |
| CN111007609A (en) * | 2019-12-14 | 2020-04-14 | 四川天邑康和通信股份有限公司 | Can fix optical cable fast and have intelligent optical cable of anticreep device to divide fine case |
| CN112010188B (en) * | 2020-09-24 | 2022-11-18 | 三一汽车起重机械有限公司 | Limiting heavy hammer and crane |
| CN113602972B (en) * | 2021-07-02 | 2024-06-04 | 中际联合（北京）科技股份有限公司 | Arm head of hoisting equipment and offshore crane |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1073751A (en) * | 1912-12-23 | 1913-09-23 | Samuel Allen Guiberson Jr | Casing-elevator. |
| US2388219A (en) * | 1943-09-01 | 1945-10-30 | Columbus Mckinnon Chain Corp | Limit control |
| CN87204196U (en) * | 1987-05-05 | 1988-04-06 | 陈叔斌 | Multipurpose hinge |
| EP0677479A1 (en) * | 1994-04-13 | 1995-10-18 | Fried. Krupp AG Hoesch-Krupp | Weight for lift limit switch |
| CN2811251Y (en) * | 2005-04-04 | 2006-08-30 | 于磊 | Overwinding alarming and stopping device |
| CN201746237U (en) * | 2010-07-27 | 2011-02-16 | 卫华集团有限公司 | Hoist and counter weight type height limiting device thereof |
| CN201825682U (en) * | 2010-10-18 | 2011-05-11 | 印辉 | Anti-overwinding hanging heavy punch for wire rope |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6144486U (en) * | 1984-08-28 | 1986-03-24 | 日立建機株式会社 | Crane hook overwinding prevention device |
-
2011
- 2011-08-05 CN CN 201110224327 patent/CN102295238B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1073751A (en) * | 1912-12-23 | 1913-09-23 | Samuel Allen Guiberson Jr | Casing-elevator. |
| US2388219A (en) * | 1943-09-01 | 1945-10-30 | Columbus Mckinnon Chain Corp | Limit control |
| CN87204196U (en) * | 1987-05-05 | 1988-04-06 | 陈叔斌 | Multipurpose hinge |
| EP0677479A1 (en) * | 1994-04-13 | 1995-10-18 | Fried. Krupp AG Hoesch-Krupp | Weight for lift limit switch |
| CN2811251Y (en) * | 2005-04-04 | 2006-08-30 | 于磊 | Overwinding alarming and stopping device |
| CN201746237U (en) * | 2010-07-27 | 2011-02-16 | 卫华集团有限公司 | Hoist and counter weight type height limiting device thereof |
| CN201825682U (en) * | 2010-10-18 | 2011-05-11 | 印辉 | Anti-overwinding hanging heavy punch for wire rope |
Non-Patent Citations (1)
| Title |
|---|
| JP昭61-44486U 1986.03.24 |
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| Publication number | Publication date |
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| CN102295238A (en) | 2011-12-28 |
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Address after: 410013 Yuelu District, Hunan, silver basin Road, No. 361, No. Applicant after: ZOOMLION HEAVY INDUSTRY SCIENCE&TECHNOLOGY Co.,Ltd. Address before: 410013 Yuelu District, Hunan, silver basin Road, No. 361, No. Applicant before: CHANGSHA ZOOMLION HEAVY INDUSTRY SCIENCE AND TECHNOLOGY DEVELOPMENT Co.,Ltd. |
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Address after: 415106 Dingcheng City, Changde Province, the town of irrigation district ZOOMLION Creek Industrial Park Patentee after: ZOOMLION HEAVY INDUSTRY SCIENCE&TECHNOLOGY Co.,Ltd. Address before: 410013 Yuelu District, Hunan, silver basin Road, No. 361, No. Patentee before: ZOOMLION HEAVY INDUSTRY SCIENCE&TECHNOLOGY Co.,Ltd. |
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Address after: 410013 Yuelu District, Hunan, silver basin Road, No. 361, No. Patentee after: ZOOMLION HEAVY INDUSTRY SCIENCE&TECHNOLOGY Co.,Ltd. Address before: 415106 Dingcheng City, Changde Province, the town of irrigation district ZOOMLION Creek Industrial Park Patentee before: ZOOMLION HEAVY INDUSTRY SCIENCE&TECHNOLOGY Co.,Ltd. |
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