CN109626205A - Heavy forging tongs - Google Patents
Heavy forging tongs Download PDFInfo
- Publication number
- CN109626205A CN109626205A CN201910060151.9A CN201910060151A CN109626205A CN 109626205 A CN109626205 A CN 109626205A CN 201910060151 A CN201910060151 A CN 201910060151A CN 109626205 A CN109626205 A CN 109626205A
- Authority
- CN
- China
- Prior art keywords
- chela
- arc
- cambered surface
- arc gusset
- gusset
- Prior art date
- 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.)
- Pending
Links
- 238000005242 forging Methods 0.000 title claims abstract description 44
- 241000040710 Chela Species 0.000 claims abstract description 23
- 210000000080 chela (arthropods) Anatomy 0.000 claims 1
- 230000006378 damage Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/42—Gripping members engaging only the external or internal surfaces of the articles
- B66C1/44—Gripping members engaging only the external or internal surfaces of the articles and applying frictional forces
Abstract
The present invention relates to a kind of heavy forging tongs, and there are two symmetrical, tong arm, transverse slat and chela composition calipers.Two tong arms are connected by connecting pin with gasket, and tong arm is fixedly connected with transverse slat, and transverse slat both ends are fixedly connected with chela top；Chela is arcuate structure, arc gusset shaft by chela, the through-hole of lower part, screw in arc gusset bias blind hole, the cambered surface of arc gusset is in chela；Arc gusset can be rotated freely around gusset shaft, and in rotary course, the cambered surface of arc gusset is inside always.The present invention is using eccentric blind hole, so that arc gusset is in use, curved opening towards inside jaw, so as to clamping forge piece, increases the contact area with workpiece cambered surface, and workpiece is protected not to be pinched in clamping always.Cambered surface, the plane of arc gusset of the present invention can be used for lifting the workpiece with cambered surface, plane characteristic.The present invention has versatility, can lift by crane the biggish workpiece of shape difference safely, can effectively reduce workpiece surface damage degree when clamping high temperature workpiece.
Description
Technical field
The invention belongs to lift by crane the suspender of forging, and in particular to a kind of heavy forging tongs.
Background technique
During forging, tongs be lift by crane large-scale workpiece required tooling, conventional tongs can only clamping shape compared with
Simple blank workpiece, chela and work piece interface product are smaller, cause to be easier to crush when slinging high temperature workpiece.For it is common from
By forging blank, because surplus is larger, the damage caused by surface when tongs clamping forge piece can not be considered, but it is small for surplus
Forging part, high temperature reasonably protects surface not to be pinched when lifting by crane, very crucial.
CN 207016354U disclose it is a kind of can automatic open-close tongs, including two corpus unguis, and two corpus unguis pass through pin
Axis is hinged, and the two sides of the corpus unguis are equipped with long strip block, and two long strip blocks are connected by multiple connecting plates, and the long strip block is close
The side of corpus unguis offers sliding slot, is set between two sliding slots there are two sliding block, and the both ends of sliding block are respectively along two sliding slots
Surface is slided, and is equipped with second spring between two sliding blocks, the side of the corpus unguis offers the strip with sliding block Matching installation
Hole, and the surface of sliding block is slided along the inner surface of strip hole, the top of the corpus unguis is hinged with connecting rod by pin shaft, described
The top of connecting rod is equipped with mounting blocks.It can facilitate chela to open automatically in the state of not clamp object, improve to blank
The efficiency of part lifting.
Summary of the invention
The purpose of the present invention is be directed to above-mentioned status, it is desirable to provide one kind can lift by crane safely with shapes such as arc shapes
More complex workpiece can reduce the heavy forging tongs of product surface degree of injury when clamping high temperature workpiece.
The implementation of the object of the invention is that heavy forging tongs, caliper is made of tong arm, transverse slat and chela；Two tong arms
It is connected by connecting pin with gasket, tong arm is fixedly connected with transverse slat, and transverse slat both ends are fixedly connected with chela top；Chela is arc
Structure, arc gusset shaft screw in the eccentric blind hole of arc gusset, the arc of arc gusset by the through-hole of in the middle part of chela and lower part
Face is in chela；Arc gusset can be rotated freely around gusset shaft, and in rotary course, the cambered surface of arc gusset is inside always.
The working principle of the invention is: when clamping arc shape forging, due to the effect of frictional force, arc shape forging
Cambered surface be bonded with the cambered surface of four arc gussets, increase the contact area of tongs Yu arc shape forging, sling arc surfaced
When shape forging, can to avoid crush it is hot under arc shape forging.When forging is flat shape, since arc gusset is certainly
Under right state, inwardly, under the frictional force effect of flat shape forging, arc gusset is in horizontality, flat lower end to opening
Face is bonded with arc gusset top, is equivalent to and is lifted flat shape forging, equally can be to avoid folder when slinging flat shape forging
Hurt flat shape forging.
Structure of the invention is scientific and reasonable, and cambered surface, the plane of arc gusset, which can be used for lifting, has cambered surface, the work of plane characteristic
Part, can the adaptive different arc-shaped workpiece of dimensions, there is versatility, the biggish workpiece of shape difference can be lifted by crane safely,
It can effectively reduce workpiece surface damage degree when clamping high temperature workpiece.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention；
Fig. 2 is arc reinforcing plate structure schematic diagram,
Fig. 3 is arched ribs plate end face blind hole location diagram；
Fig. 4 is present invention lifting cambered surface feature forging flow diagram,
Fig. 5 is present invention lifting flat shape feature forging flow diagram.
Specific embodiment
The present invention is described in detail with reference to the accompanying drawings.
Referring to Fig.1, there are two symmetrical calipers 1, caliper to be made of tong arm 101, transverse slat 102 and chela 103 by the present invention, and two
A tong arm is connected by connecting pin 4 and gasket 5, and tong arm is fixedly connected with transverse slat 102, the fixed company in transverse slat both ends and chela top
It connects, chela 103 is arcuate structure, and gusset shaft 3 screws in the eccentric blind of arc gusset 2 by the through-hole at chela middle part, lower part
Hole.The cambered surface of arc gusset is in chela.Arc gusset can be rotated freely around gusset shaft, in rotary course, arc gusset
Cambered surface is inside always.
Referring to Fig. 2, the arc gusset is generally rectangular parallelepiped structure, and one of long face is cambered surface 202, with cambered surface
202 two vertical end faces are equipped with eccentric blind hole 201.The center of circle of the eccentric blind hole position on the upper side in end face center.Arched ribs
The cambered surface 202 of plate is in chela, so that cambered surface is inside always in use for arc gusset, so as to clamping forge piece.
Referring to Fig. 3, the specific set-up mode of eccentric blind hole in arched ribs plate end face are as follows: a is arched ribs slab geomitry center institute
In position, b is the center of gravity position of arc gusset, and c is the setting position in the eccentric blind hole center of circle.It can be seen from figure 3 that eccentric blind hole
The axis position on the upper side at arc gusset center.After such eccentric blind hole structure, arc gusset can be under Gravitative Loads
It is rotated freely around its shaft, its opening is made to begin inwardly, to be convenient for clamping workpiece.
Referring to Fig. 4, the present invention is when clamping arc shape forging 6, due to the effect of frictional force, the arc of arc shape forging
Face is bonded with the cambered surface of four arc gussets, increases the contact area of tongs and forging, can when slinging arc shape forging
To avoid crush it is hot under forging.
Referring to Fig. 5, the present invention is when clamping flat feature forging 7, in its natural state due to arc gusset, be open to
Interior, under the frictional force effect of flat feature forging, arc gusset is in horizontality, flat lower end surface and arc gusset top
Fitting, is equivalent to and lifts forging；It, equally can be to avoid crushing flat shape forging so when slinging flat shape forging.
The working principle of the invention is: when clamping arc shape forging, due to the effect of frictional force, arc shape forging
Cambered surface be bonded with the cambered surface of four arc gussets, increase the contact area of tongs Yu arc shape forging, sling arc surfaced
When shape forging, can to avoid crush it is hot under arc shape forging.When forging is flat shape, since arc gusset is certainly
Under right state, inwardly, under the frictional force effect of flat shape forging, arc gusset is in horizontality, flat lower end to opening
Face is bonded with arc gusset top, is equivalent to and is lifted flat shape forging, equally can be to avoid folder when slinging flat shape forging
Hurt flat shape forging.
Claims (2)
1. heavy forging tongs, it is characterised in that: there are two symmetrical caliper, caliper is made of tong arm, transverse slat and chela；Two pincers
Arm is connected by connecting pin with gasket, and tong arm is fixedly connected with transverse slat, and transverse slat both ends are fixedly connected with chela top；Chela is arc
Shape structure, arc gusset shaft screw in the eccentric blind hole of arc gusset by the through-hole of in the middle part of chela and lower part, arc gusset
Cambered surface is in chela；Arc gusset can be rotated freely around gusset shaft, and in rotary course, the cambered surface of arc gusset is inside always.
2. heavy forging tongs according to claim 1, it is characterised in that: the arc gusset is rectangular parallelepiped structure,
In long face be cambered surface, two end faces vertical with cambered surface are equipped with bias blind hole, and the center of circle of eccentric blind hole is in end face center
Position on the upper side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910060151.9A CN109626205A (en) | 2019-01-22 | 2019-01-22 | Heavy forging tongs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910060151.9A CN109626205A (en) | 2019-01-22 | 2019-01-22 | Heavy forging tongs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109626205A true CN109626205A (en) | 2019-04-16 |
Family
ID=66063107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910060151.9A Pending CN109626205A (en) | 2019-01-22 | 2019-01-22 | Heavy forging tongs |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109626205A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19800309A1 (en) * | 1998-01-07 | 1999-07-08 | Winden Und Maschinenbau Gresba | Self-clamping pipe grip |
| CN103010936A (en) * | 2012-12-22 | 2013-04-03 | 张家港市广大机械锻造有限公司 | Lifting tool for large steel ingot and large forge piece |
| CN203545473U (en) * | 2013-11-13 | 2014-04-16 | 张骄炎 | Brick clamping lifting tool of truck with crane |
| CN204778363U (en) * | 2015-06-01 | 2015-11-18 | 马钢(集团)控股有限公司 | Dual drive forging tongs |
| CN209685156U (en) * | 2019-01-22 | 2019-11-26 | 武汉重工铸锻有限责任公司 | Heavy forging tongs |
-
2019
- 2019-01-22 CN CN201910060151.9A patent/CN109626205A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19800309A1 (en) * | 1998-01-07 | 1999-07-08 | Winden Und Maschinenbau Gresba | Self-clamping pipe grip |
| CN103010936A (en) * | 2012-12-22 | 2013-04-03 | 张家港市广大机械锻造有限公司 | Lifting tool for large steel ingot and large forge piece |
| CN203545473U (en) * | 2013-11-13 | 2014-04-16 | 张骄炎 | Brick clamping lifting tool of truck with crane |
| CN204778363U (en) * | 2015-06-01 | 2015-11-18 | 马钢(集团)控股有限公司 | Dual drive forging tongs |
| CN209685156U (en) * | 2019-01-22 | 2019-11-26 | 武汉重工铸锻有限责任公司 | Heavy forging tongs |
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| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |