CN105174042B - A kind of high reliability stone tongs - Google Patents
A kind of high reliability stone tongs Download PDFInfo
- Publication number
- CN105174042B CN105174042B CN201510646723.3A CN201510646723A CN105174042B CN 105174042 B CN105174042 B CN 105174042B CN 201510646723 A CN201510646723 A CN 201510646723A CN 105174042 B CN105174042 B CN 105174042B
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- Prior art keywords
- jig arm
- rivet
- rotating shaft
- bending
- boss
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Abstract
The present invention relates to a kind of high reliability stone tongs, belong to hanging device technical field, including the first jig arm and the second jig arm, first jig arm and the second jig arm lower end are provided with bending, the bending end is connected with clamping device, there is boss in the middle part of first jig arm, the bar hole through block is offered in the boss, second jig arm is passed through from bar hole, the rotating shaft for crossing the second jig arm and boss is provided with the bar hole, stopping means is provided between lifting hole(eyelet) and rotating shaft in first jig arm and the second jig arm, the stopping means includes two bows, it is flexibly connected between the bow by the first rivet, the one end of the bow away from the first rivet is flexibly connected with the first jig arm by the second rivet.The technical scheme avoids jig arm opening angle excessive or too small countershaft produces larger twisting resistance, the problem of causing rotating shaft deformation, extends fixture service life, beneficial effect is notable.
Description
Technical field
The present invention relates to a kind of high reliability stone tongs, belong to hanging device technical field.
Background technology
Stone tongs is widely used in the industrial production, because the structure of workpiece is different, should be targetedly from conjunction
Suitable suspender, for example, in casting technique, the casting die cavity made using roughing sand, adhesive and other auxiliary materials, due to its casting
Product structure is mutually corresponded to, typically with smooth surface, the suspension centre lifted by crane without the hook-shaped suspender of confession, and sand mold outer surface is
Mechanical failure is avoided the occurrence of, therefore a kind of hanging suitable for such product should not be targetedly designed with hard holder contacts
Clamps are extremely urgent.
The content of the invention
To solve problems of the prior art, the invention provides a kind of high reliability stone tongs, particular technique
Scheme is as follows:
A kind of high reliability stone tongs, including the first jig arm and the second jig arm, first jig arm and the second jig arm
Upper end is correspondingly arranged on lifting hole(eyelet), and first jig arm and the second jig arm lower end are provided with bending, and the bending end is connected with folder
Holding has the bar hole offered in boss, the boss through block, described second in the middle part of device, first jig arm
Jig arm is passed through from bar hole, and the rotating shaft for crossing the second jig arm and boss, the rotating shaft two ends are provided with the bar hole
It is threaded with fixing nut, first jig arm and the second jig arm and stopping means is provided between lifting hole(eyelet) and rotating shaft, institute
Stating stopping means includes between two bows, the bow being flexibly connected by the first rivet, and the bow is away from the
One end of one rivet is flexibly connected with the first jig arm by the second rivet.
As the improvement of above-mentioned technical proposal, the bow is provided with L-shaped gag lever post close to one end of the first rivet.
As the improvement of above-mentioned technical proposal, the clamping device includes U-shaped contiguous block, the contiguous block and bending end
It is flexibly connected by bearing pin, side of the contiguous block away from bending is fixedly connected with clamping plate, and the clamping plate is away from contiguous block
Side is provided with flexible cushion.
As the improvement of above-mentioned technical proposal, the contiguous block is positioned close to the position of clamping plate side lower end, described soft
Property bed course has the larger thick end of thickness and the less thin end of thickness.
As the improvement of above-mentioned technical proposal, chain is fixedly connected between the lifting hole(eyelet).
The jaw type clamping device that above-mentioned technical proposal is constituted by using two jig arm of the first jig arm and the second jig arm, in order to
The load of rotating shaft between two jig arm is reduced, the stopping means constituted using two bows carries out auxiliary traction to jig arm, it is to avoid jig arm
Opening angle is excessive or too small countershaft produces larger twisting resistance, the problem of causing rotating shaft deformation, extends the use longevity of fixture
Life, with beneficial technique effect.
Figure of description
Fig. 1 is a kind of structural representation of high reliability stone tongs of the invention;
Fig. 2 is the structural representation of clamping device in the present invention.
Embodiment
As shown in Figure 1, there is shown, the invention provides a kind of high reliability stone tongs, including the first jig arm 10 and the second jig arm
10a, wherein the first jig arm 10 and the second jig arm 10a upper end are correspondingly arranged on lifting hole(eyelet) 11, the first jig arm 10 and the second jig arm 10a
Lower end is provided with bending 14, and the end of bending 14 is connected with clamping device 40, and the middle part of the first jig arm 10 has boss 12, boss
The bar hole 13 through block is offered in 12, the second jig arm 10a is passed through from bar hole 13, is provided with and crosses in bar hole 13
Second jig arm 10a and boss 12 rotating shaft 20, the two ends of rotating shaft 20 are threaded with fixing nut 21, the first jig arm 10 and second
Stopping means is provided with jig arm 10a between lifting hole(eyelet) 11 and rotating shaft 20, stopping means includes two bows 30, bow 30
Between be flexibly connected by the first rivet 22, the one end of bow 30 away from the first rivet 23 and the first jig arm 10 pass through the second riveting
Nail 23 is flexibly connected.
In use, being clamped by the clamping device 40 of two jig arm ends to sand mold, pass through rising for being connected with lifting hole(eyelet) 11
Device for hoisting slings two jig arm, because two jig arm are flexibly connected by rotating shaft 20, and boom hoisting is in two lifting hole(eyelet)s 11 during lifting
Between produce opposite pulling force, make both that there is trend close to each other on the pulling force effect and two arms, pass through 20 liang of rotating shaft
Arm will produce clamping trend to sand mold, it is ensured that arc in the firm connection of fixture and sand mold, above-mentioned stopping means in hoisting process
The effect of shape bar 30 is to play a part of auxiliary traction in two jig arm opening procedures, it is to avoid the connection of rotating shaft 20 two is used alone and presss from both sides
Arm causes the problem of load of rotating shaft 20 is larger, improves the service life of stone tongs.
Further, bow 30 is provided with L-shaped gag lever post 31, the effect of gag lever post 31 close to one end of the first rivet 22
It is to limit bow 30 after two jig arm open up into certain angle further to move, it is to avoid jig arm opening angle crosses ambassador's rotating shaft 20
The torsion undertaken is excessive, causes rotating shaft 20 to produce deformation.
Further, as shown in Fig. 2 clamping device 40 includes U-shaped contiguous block 41, contiguous block 41 passes through with the end of bending 14
Bearing pin 44 is flexibly connected, and side of the contiguous block 41 away from bending 14 is fixedly connected with clamping plate 42, and the clamping plate 42 is away from contiguous block
41 side is provided with flexible cushion 43, and the effect of the flexible cushion 43 is protected when being clamping sand mold to its surface, it is to avoid
Occurs mechanical damage in hoisting process, in use, being that contiguous block 41 can under the compressing of bending 14 when two jig arm are gradually clamped
Rotated relative to bending 14, adapt to the shape of mould surface, so as to realize the close connection for accommodating device 40 and sand mold.
For the more preferably clamping effect of acquisition, contiguous block 41 is positioned close to the position of the side lower end of clamping plate 42, described
Flexible cushion 43 has the larger thick end 43a and the less thin end 43b of thickness of thickness, and the purpose of the structure design is to adapt to lifting
During jig arm when gradually clamping to the pressure change of sand mold, realized in clamping process and pressed from both sides by the different flexible cushion 43 of thickness
Plate 42 is further rotated with contiguous block 41 relative to bending 14, and because contiguous block 41 is positioned close to the side lower end of clamping plate 42
Position, the lower end of clamping process middle clamp plate 42 pressure bigger by sand mold is given compared to the upper end of clamping plate 42 can be prevented effectively from sand
The relative stability slided, further improve hoisting process is produced between type and stone tongs.In the above-described embodiments, lifting hole(eyelet) 11
Between be fixedly connected with chain 50, in use, the suspension hook 60 of boom hoisting is connected into the middle part of chain 50, you can realize sand mold
Lifting.
Claims (3)
1. a kind of high reliability stone tongs, including the first jig arm (10) and the second jig arm (10a), first jig arm (10) and
The upper end of second jig arm (10a) is correspondingly arranged on lifting hole(eyelet) (11), and first jig arm (10) and the second jig arm (10a) lower end are set
There is bending (14), bending (14) end, which is connected with the middle part of clamping device (40), first jig arm (10), has boss
(12) bar hole (13) through block, is offered in the boss (12), second jig arm (10a) is from bar hole (13)
In pass through, is provided with the rotating shaft (20) for crossing the second jig arm (10a) and boss (12), the rotating shaft in the bar hole (13)
(20) two ends are threaded with fixing nut (21), it is characterised in that on first jig arm (10) and the second jig arm (10a)
Stopping means is provided between lifting hole(eyelet) (11) and rotating shaft (20), the stopping means includes two bows (30), the arc
It is flexibly connected between bar (30) by the first rivet (22), the one end and first of the bow (30) away from the first rivet (23)
Jig arm (10) is flexibly connected by the second rivet (23), and the clamping device (40) includes U-shaped contiguous block (41), the contiguous block
(41) it is flexibly connected with bending (14) end by bearing pin (44), side of the contiguous block (41) away from bending (14), which is fixed, to be connected
Clamping plate (42) is connected to, side of the clamping plate (42) away from contiguous block (41) is provided with flexible cushion (43), the contiguous block
(41) position of clamping plate (42) side lower end is positioned close to, the flexible cushion (43) has the larger thick end (43a) of thickness
With the less thin end (43b) of thickness.
2. a kind of high reliability stone tongs as claimed in claim 1, it is characterised in that the bow (30) is close to first
One end of rivet (22) is provided with L-shaped gag lever post (31).
3. a kind of high reliability stone tongs as claimed in claim 1 or 2, it is characterised in that solid between the lifting hole(eyelet) (11)
Surely it is connected with chain (50).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201510646723.3A CN105174042B (en) | 2015-10-09 | 2015-10-09 | A kind of high reliability stone tongs |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201510646723.3A CN105174042B (en) | 2015-10-09 | 2015-10-09 | A kind of high reliability stone tongs |
Publications (2)
Publication Number | Publication Date |
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CN105174042A CN105174042A (en) | 2015-12-23 |
CN105174042B true CN105174042B (en) | 2017-10-10 |
Family
ID=54896594
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN201510646723.3A Expired - Fee Related CN105174042B (en) | 2015-10-09 | 2015-10-09 | A kind of high reliability stone tongs |
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Country | Link |
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CN (1) | CN105174042B (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108584689A (en) * | 2018-06-08 | 2018-09-28 | 苏州市硕曜机械有限公司 | A kind of aircraft engine axial workpiece hanger structure |
CN112411877B (en) * | 2020-11-04 | 2022-09-23 | 上海市建筑科学研究院有限公司 | Steel-concrete combined structure shear connector, construction method and shear combined structure |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE863063A (en) * | 1977-02-04 | 1978-05-16 | Kernforschungsanlage Juelich | GRAPPLE FOR LIFTING LOADS |
US5056845A (en) * | 1990-07-09 | 1991-10-15 | Cook Carol A | Material manipulation apparatus |
EP1057774A2 (en) * | 1999-05-31 | 2000-12-06 | Leppink Kampen Beheer | Transporter |
CN203319524U (en) * | 2013-06-28 | 2013-12-04 | 中国建筑股份有限公司 | Hoisting clamp for concrete block blanks |
CN203667808U (en) * | 2013-12-16 | 2014-06-25 | 东风朝阳朝柴动力有限公司 | Large workpiece lifting turnover fixture |
CN204474138U (en) * | 2015-01-29 | 2015-07-15 | 中冶天工集团有限公司 | A kind of fast hoisting jig |
CN205114842U (en) * | 2015-10-09 | 2016-03-30 | 安徽合力股份有限公司合肥铸锻厂 | High reliability stone tongs |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1840329A (en) * | 1929-06-01 | 1932-01-12 | Bethlehem Steel Corp | Lifting tongs |
US20040135389A1 (en) * | 2003-01-09 | 2004-07-15 | Helms Robert J. | Lifting device for manhole tops and manhole covers |
-
2015
- 2015-10-09 CN CN201510646723.3A patent/CN105174042B/en not_active Expired - Fee Related
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE863063A (en) * | 1977-02-04 | 1978-05-16 | Kernforschungsanlage Juelich | GRAPPLE FOR LIFTING LOADS |
US5056845A (en) * | 1990-07-09 | 1991-10-15 | Cook Carol A | Material manipulation apparatus |
EP1057774A2 (en) * | 1999-05-31 | 2000-12-06 | Leppink Kampen Beheer | Transporter |
CN203319524U (en) * | 2013-06-28 | 2013-12-04 | 中国建筑股份有限公司 | Hoisting clamp for concrete block blanks |
CN203667808U (en) * | 2013-12-16 | 2014-06-25 | 东风朝阳朝柴动力有限公司 | Large workpiece lifting turnover fixture |
CN204474138U (en) * | 2015-01-29 | 2015-07-15 | 中冶天工集团有限公司 | A kind of fast hoisting jig |
CN205114842U (en) * | 2015-10-09 | 2016-03-30 | 安徽合力股份有限公司合肥铸锻厂 | High reliability stone tongs |
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Publication number | Publication date |
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CN105174042A (en) | 2015-12-23 |
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