CN203641237U - Nut for bolt end head protection - Google Patents
Nut for bolt end head protection Download PDFInfo
- Publication number
- CN203641237U CN203641237U CN201320844331.4U CN201320844331U CN203641237U CN 203641237 U CN203641237 U CN 203641237U CN 201320844331 U CN201320844331 U CN 201320844331U CN 203641237 U CN203641237 U CN 203641237U
- Authority
- CN
- China
- Prior art keywords
- nut
- bolt
- threaded hole
- bolt end
- utility
- 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.)
- Expired - Lifetime
Links
- 238000005242 forging Methods 0.000 abstract description 13
- 238000000034 method Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Forging (AREA)
Abstract
A nut for bolt end head protection relates to fasteners. With the utility model, the technical problem that a regular nut is used in existing forging tool and thus threads exposed on a bolt end can easily be damaged is solved. The nut is hexahedron-shaped, wherein a threaded hole coordinated with the bolt is processed in the center, length of the threaded hole is 1.5 to 2 times the nominal diameter of the threads, a tool withdrawal groove is disposed between the threaded hole and the nut bottom and a chamfer is disposed on the upper end of the threaded hole. The nut in the utility model is used in the forging tools in a very wicked operating environment. The nut has the advantages that the treads on the bolt end are prevented effectively from being damaged, fastening is convenient and reliable and service life is long.
Description
Technical field
The utility model relates to fastening piece, is specifically related to a kind of nut that can fender bolt termination, is specially adapted to the very severe forging tools of working environment, and the helical thread portion that can expose the bolt end of forging tools is protected, and it is not damaged.
Background technique
The working environment of forging press is very severe: high temperature, HI high impact, powder (ash) dirt are large, the forging scale that can drop in forging process.The fastening piece that the forging tools of forging press uses, adopts plain nut and bolton conventionally, and the helical thread portion that expose bolt end often can be damaged, causes nut to dismantle, and affects the conventional maintenance of equipment.
Model utility content
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of nut that can fender bolt termination is provided, and solves existing forging tools and adopts plain nut, and the screw thread that expose bolt end often can impaired technical problem.
The utility model is achieved through the following technical solutions:
A kind of nut that can fender bolt termination, it is characterized in that: described nut is hexahedron, its center is processed with the tapped hole coordinating with bolt, the length of described tapped hole is 1.5~2 times of screw thread nominal diameter, between described tapped hole and nut bottom, be tool withdrawal groove, the upper end of described tapped hole is chamfering.
The seamed edge of described nut all has chamfering.
The utility model compared with prior art, due to by the plain nut transformation of the way for profile is the nut shape of hexahedron, center thread mill drilling, can prevent that bolt end from surprisingly being smashed by dust burn into.Because the length of tapped hole is 1.5~2 times of screw thread nominal diameter, can facilitate, normal and bolton.
The utility model is for the very severe forging tools of working environment, and the screw thread with effective protection bolt end is not damaged, fastening convenience, reliable, the advantage of long service life.
Accompanying drawing explanation
Fig. 1 is structural drawing of the present utility model (plan view);
Fig. 2 is the plan view of Fig. 1;
Fig. 3 is the application schematic diagram of the utility model on forging tools (cutter anvil).
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Embodiment
As shown in Figure 1, 2, a kind of nut 1 that can fender bolt termination is hexahedron, its center is processed with the tapped hole 1-1 coordinating with bolt, the length of described tapped hole 1-1 is 1.5~2 times of screw thread nominal diameter, between described tapped hole 1-1 and nut bottom 1-2, be the tool withdrawal groove 1-3 that technique needs, the upper end of described tapped hole 1-1 is chamfering 1-1-1, is convenient to be screwed into bolt.
The seamed edge of described nut 1 all has chamfering 1-4.
The material of nut 1 is chosen and (can be used more greatly alloyed steel if stressed according to operating mode; If water or wet environment can be used stainless steel).
Application examples of the present utility model:
As shown in Figure 3, a kind of forging tools-cutter anvil, comprising: blade 3 and hammering block 4, and fixing employing nut 1 and the bolt 2 of blade 3 and hammering block 4 form, and blade 3 is arranged in the middle of 4 liang of flange 4-1 of hammering block, and bolt 2 is through the hole of blade 3 and hammering block 4, tightens with nut 1.
Hammering block 4 is pressed on (being fixed on) worktable 6 by pressing plate 7, and processing T type groove on worktable 6 is installed T-shape head bolt 5 in the middle of T-shaped groove, and T-shape head bolt 5 is through pressing plate 7 intermediate holes, T-shape head bolt 5 upper end mounting nuts 1.
Claims (2)
- One kind can fender bolt termination nut, it is characterized in that: described nut (1) is hexahedron, its center is processed with the tapped hole (1-1) coordinating with bolt, the length of described tapped hole (1-1) is 1.5~2 times of screw thread nominal diameter, between described tapped hole (1-1) and nut bottom (1-2), be tool withdrawal groove (1-3), the upper end of described tapped hole (1-1) is chamfering (1-1-1).
- 2. nut that can fender bolt termination according to claim 1, is characterized in that: the seamed edge of described nut (1) all has chamfering (1-4).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201320844331.4U CN203641237U (en) | 2013-12-20 | 2013-12-20 | Nut for bolt end head protection |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201320844331.4U CN203641237U (en) | 2013-12-20 | 2013-12-20 | Nut for bolt end head protection |
Publications (1)
Publication Number | Publication Date |
---|---|
CN203641237U true CN203641237U (en) | 2014-06-11 |
Family
ID=50872485
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201320844331.4U Expired - Lifetime CN203641237U (en) | 2013-12-20 | 2013-12-20 | Nut for bolt end head protection |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN203641237U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110454486A (en) * | 2019-08-28 | 2019-11-15 | 嘉兴通达机械有限公司 | A kind of fixation nut bolt component |
-
2013
- 2013-12-20 CN CN201320844331.4U patent/CN203641237U/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110454486A (en) * | 2019-08-28 | 2019-11-15 | 嘉兴通达机械有限公司 | A kind of fixation nut bolt component |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CX01 | Expiry of patent term | ||
CX01 | Expiry of patent term |
Granted publication date: 20140611 |