CN204003869U - A kind of notch bolt assembly that bears superimpose loads power - Google Patents
A kind of notch bolt assembly that bears superimpose loads power Download PDFInfo
- Publication number
- CN204003869U CN204003869U CN201420474829.0U CN201420474829U CN204003869U CN 204003869 U CN204003869 U CN 204003869U CN 201420474829 U CN201420474829 U CN 201420474829U CN 204003869 U CN204003869 U CN 204003869U
- Authority
- CN
- China
- Prior art keywords
- bolt
- recess
- superimpose
- polished rod
- changeover portion
- 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.)
- Withdrawn - After Issue
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Abstract
The utility model discloses a kind of notch bolt assembly that bears superimpose loads power, the screw rod that this assembly is included in bolt is provided with the bolt of bolt head and recess; The recess of bolt is polished rod section near the screw rod of the first side of bolt, the screw rod of recess opposite side is thread section, joint at recess and polished rod section and thread section is provided with changeover portion, and the diameter of changeover portion is less than the diameter of polished rod section and thread section, and the diameter of recess is less than the diameter of changeover portion; In the polished rod section of bolt, cover has protecting cover, and protecting cover all covers in recess and all changeover portions, an elastic seal ring is at least installed in protecting cover, and this elastic seal ring is fastened on changeover portion.Adopt the utility model can effectively prevent that post-rift bolt is scattered and causes the impact on machinery.The utlity model has the advantages such as Safety performance that usability is reliable, simple in structure, easy to use, can greatly improve equipment.
Description
Technical field
the utility model relates to a kind of notch bolt assembly that bears superimpose loads power, belongs to special fastening connection piece technical field.
Background technique
in the prior art, in order to prevent machinery overburdening or the operation of super moment of torsion, generally adopt notch type bolt to connect, the diameter of its bolt recess is to determine according to the Maximum Torque of use occasion regulation or maximum shear stress.When the load of machinery surpasses the Maximum Torque of notch bolt defined or maximum shear stress, notch bolt will rupture, thereby forces machinery out of service.But the notch bolt in currently available technology is in the process of using, when there is fracture, post-rift bolt will be scattered in machinery, because machinery can not quit work in time completely, the break bolt of being therefore scattered impacts machinery possibly, sometimes also can destroy whole machinery.Therefore the using effect of existing notch bolt or not ideal enough, still can not meet the requirement of use, particularly can not meet the requirement of some special occasions safe handling.
Model utility content
the purpose of this utility model is, provide a kind of simple in structure, usability reliable and the notch bolt assembly of the superimpose loads power of bearing that can not damage use equipment, to meet the fastening requirement of special occasions and to overcome the deficiencies in the prior art.
the technical solution of the utility model is achieved in that
a kind of notch bolt assembly that bears superimpose loads power of the present utility model is, the screw rod that this assembly is included in bolt is provided with the bolt of bolt head and recess; The recess of bolt is polished rod section near the screw rod of the first side of bolt, the screw rod of recess opposite side is thread section, joint at recess and polished rod section and thread section is provided with changeover portion, and the diameter of changeover portion is less than the diameter of polished rod section and thread section, and the diameter of recess is less than the diameter of changeover portion; In the polished rod section of bolt, cover has protecting cover, and protecting cover all covers in recess and all changeover portions, an elastic seal ring is at least installed in protecting cover, and this elastic seal ring is fastened on changeover portion.
two elastic seal rings are preferably installed in above-mentioned protecting cover, and two elastic seal rings are fastened in respectively on the changeover portion on recess both sides.
in above-mentioned protecting cover, be provided with for fixing the annular slot of elastic seal ring.
the above-mentioned elastic seal ring of stating is rubber seal or malthoid formula seal ring.
the polished rod section of above-mentioned bolt is preferably transition fit with coordinating of protecting cover.
above-mentioned changeover portion is connected with the conical surface that is connected to of polished rod section and thread section.
above-mentioned bolt head is that arc transition is connected with polished rod section.
above-mentioned bolt head is six square toes, and six square toes bottom surfaces are rounded face.
end face at above-mentioned thread section is provided with chamfering.
owing to having adopted technique scheme, when of the present utility model, establish jagged bolt in use, when there is fracture in indent, because the protecting cover on bolt is by the tight connection function of elastic seal ring and bolt changeover portion, after even bolt ruptures, bolt also can bear certain load by the tight connection function of protecting cover and elastic seal ring and bolt changeover portion, this load is different from the former main load being applied on bolt, this load is inertial load when equipment is out of service after bolt fracture, out of service and reduce rapidly gradually on post-rift bolt and due to machinery of this load.After testing and proof of actual use, adopt the utility model can effectively prevent that post-rift bolt is scattered and on the impact of machinery and destruction.Therefore, adopt this technological scheme of the present utility model can effectively prevent the post-rift bolt phenomenon of being scattered, and greatly improved the safety and reliability of machinery operation.So the utility model compared with prior art, the utility model not only has advantages of that usability is reliable, can effectively prevent that post-rift bolt is scattered, but also has the advantages such as Safety performance simple in structure, easy to use, greatly to improve equipment.The utility model is particularly suitable for device security performance to require the fastening requirement of high special occasions to use.
Accompanying drawing explanation
fig. 1 is that the utility model connects the structural representation while using in machinery;
fig. 2 is that the utility model is established jagged bolt arrangement schematic diagram;
fig. 3 is the 3-D view of Fig. 2.
being labeled as in accompanying drawing: 1-bolt head, 2-recess, 3-polished rod section, 4-thread section, 5-changeover portion, the 6-conical surface, 7-arc transition, 8-rounded face, 9-chamfering, 10-protecting cover, 10.1-annular slot, 11-elastic seal ring, 12-machinery.
Embodiment
below in conjunction with drawings and Examples, the utility model is described in further detail, but not as to any restriction of the present utility model.
embodiment of the present utility model: the utility model is constructed according to a kind of following method that prevents that bolt fracture is scattered, the method is by establishing jagged bolt, to be made into the bolt with polished rod section and thread section in advance, and in the joint of recess and polished rod section and thread section, changeover portion is set, make the diameter of changeover portion be less than polished rod section and thread section diameter and be greater than the diameter of recess, then when adopting this to establish jagged bolt and connect, in the polished rod section of bolt, partly overlap a protecting cover, an elastic seal ring is at least installed in this protecting cover, this elastic seal ring is closely enclosed within on the changeover portion of bolt, ought establish jagged bolt in use like this, when there is fracture in indent, because the protecting cover on bolt is by the tight connection function of elastic seal ring and bolt changeover portion, thereby effectively prevent that post-rift bolt is scattered.
as shown in Figure 1-Figure 3, the screw rod that this assembly is included in bolt is provided with the bolt of bolt head 1 and recess 2 to the structural representation of the of the present utility model a kind of notch bolt assembly that bears superimpose loads power building according to said method; The recess of bolt 2 is made as to polished rod section 3 near the screw rod of bolt head 1 one sides, the screw rod of recess 2 opposite sides is made as thread section 4, in recess 2 and the joint of polished rod section 3 and thread section 4, produce respectively changeover portion 5, make the diameter of changeover portion 5 be less than the diameter of polished rod section 3 and thread section 4, the diameter of recess 2 is less than the diameter of changeover portion 5; In the polished rod section 3 of bolt, overlapping a protecting cover 10(protecting cover 10 can adopt metallic material to make), protecting cover 10 can all be covered in recess 2 and all changeover portions 5 parts, the mode that preferably adopts transition fit that coordinates of the polished rod section 3 of bolt and protecting cover 10; In protecting cover 10, produce for fixing the annular slot 10.1 of elastic seal ring 11, an elastic seal ring 11 is at least installed in the annular slot 10.1 of protecting cover 10, and this elastic seal ring 11 is fastened on changeover portion 5; During making, be preferably in two elastic seal rings 11 are installed in protecting cover 10, and two elastic seal rings 11 are fastened in respectively on the changeover portion 5 on recess 2 both sides (as shown in Figure 1); Elastic seal ring 11 can adopt General Purpose Rubber seal ring of the prior art or malthoid formula seal ring; In order to strengthen the intensity of bolt, by being made into changeover portion 5 and polished rod section 3 and being connected of thread section 4 conical surface 6, connect, bolt head 1 and polished rod section 3 are made as to arc transition 7 and are connected; Convenient in order to use, bolt head 1 is made as to six square toes, and six square toes bottom surfaces are made as to rounded face 8, simultaneously at the end face of thread section 4, produce chamfering 9.
Claims (9)
1. bear a notch bolt assembly for superimpose loads power, the screw rod that is included in bolt is provided with the bolt of bolt head (1) and recess (2); It is characterized in that: the recess of bolt (2) is polished rod section (3) near the screw rod of bolt head (1) one side, the screw rod of recess (2) opposite side is thread section (4), in recess (2) and the joint of polished rod section (3) and thread section (4), be provided with changeover portion (5), the diameter of changeover portion (5) is less than the diameter of polished rod section (3) and thread section (4), and the diameter of recess (2) is less than the diameter of changeover portion (5); The upper cover of polished rod section (3) at bolt has protecting cover (10), and protecting cover (10) all covers in recess (2) and all changeover portions (5), an elastic seal ring (11) is at least installed in protecting cover (10), and this elastic seal ring (11) is fastened on changeover portion (5).
2. the notch bolt assembly that bears superimpose loads power according to claim 1, it is characterized in that: two elastic seal rings (11) are installed in protecting cover (10), and two elastic seal rings (11) are fastened in respectively on the changeover portion (5) on recess (2) both sides.
3. the notch bolt assembly that bears superimpose loads power according to claim 1 and 2, is characterized in that: in protecting cover (10), be provided with the annular slot (10.1) for fixing elastic seal ring (11).
4. the notch bolt assembly that bears superimpose loads power according to claim 1 and 2, is characterized in that: described elastic seal ring (11) is rubber seal or malthoid formula seal ring.
5. the notch bolt assembly that bears superimpose loads power according to claim 1, is characterized in that: the polished rod section (3) of bolt is transition fit with coordinating of protecting cover (10).
6. the notch bolt assembly that bears according to claim 1 superimpose loads power, is characterized in that: described changeover portion (5) is connected with the conical surface (6) that is connected to of polished rod section (3) and thread section (4).
7. the notch bolt assembly that bears according to claim 1 superimpose loads power, is characterized in that: described bolt head (1) is connected for arc transition (7) with polished rod section (3).
8. the notch bolt assembly that bears according to claim 7 superimpose loads power, is characterized in that: described bolt head (1) is six square toes, and six square toes bottom surfaces are rounded face (8).
9. the notch bolt assembly that bears according to claim 1 superimpose loads power, is characterized in that: the end face of described thread section (4) is provided with chamfering (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420474829.0U CN204003869U (en) | 2014-08-22 | 2014-08-22 | A kind of notch bolt assembly that bears superimpose loads power |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420474829.0U CN204003869U (en) | 2014-08-22 | 2014-08-22 | A kind of notch bolt assembly that bears superimpose loads power |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204003869U true CN204003869U (en) | 2014-12-10 |
Family
ID=52043876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420474829.0U Withdrawn - After Issue CN204003869U (en) | 2014-08-22 | 2014-08-22 | A kind of notch bolt assembly that bears superimpose loads power |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204003869U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104179768A (en) * | 2014-08-22 | 2014-12-03 | 贵州航天精工制造有限公司 | Method for preventing breaking scattering of bolts and notch bolt component capable of bearing double loading force |
-
2014
- 2014-08-22 CN CN201420474829.0U patent/CN204003869U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104179768A (en) * | 2014-08-22 | 2014-12-03 | 贵州航天精工制造有限公司 | Method for preventing breaking scattering of bolts and notch bolt component capable of bearing double loading force |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141210 Effective date of abandoning: 20160413 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |