CN204253542U - A kind of split type annular shears high strength pretension bolt - Google Patents
A kind of split type annular shears high strength pretension bolt Download PDFInfo
- Publication number
- CN204253542U CN204253542U CN201420574504.XU CN201420574504U CN204253542U CN 204253542 U CN204253542 U CN 204253542U CN 201420574504 U CN201420574504 U CN 201420574504U CN 204253542 U CN204253542 U CN 204253542U
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- bolt
- high strength
- split type
- bolt head
- shank
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Abstract
The utility model provides a kind of split type annular and shears high strength pretension bolt, and comprise bolt head and bolt shank, the bolt head described in it is cylindrical structure, and one end outer wall has outside thread, for the connection with fixation; The other end has tapped hole along axis; Circumferentially outer lug in the middle part of cylindrical body, has annular cut groove along cylindrical body outer wall on protruding; Described bolt shank is cylindrical structure, and one end is the outside thread mated with the tapped hole of bolt head, and bolt shank axially has the center hole run through, and sidewall has the exhaust port of radial through bolt bar, and exhaust port is communicated with center hole.The utility model has larger tension, compressive strength and anti-twisting property, can disassemble in fire-working article, simple to operate, solves the difficult problem that matrix disaster is installed.
Description
Technical field
The invention belongs to fire-working article technical field, relate to a kind of annular and shear pretension bolt, particularly heavy load low impact high speed is separated actuator pretension bolt.
Background technique
At present, domestic fire-working article is applied to the pretension bolt of actuator, segregating unit, disengagement bolts in the field such as Aeronautics and Astronautics, boats and ships, fix, be assemblied in fire-working article self (i.e. intrinsic silicon), be integral structure, can not dismantle, specific manufacturability requirement when can not meet assembling.
Summary of the invention
In order to overcome the deficiencies in the prior art, the invention provides a kind of high strength pretension bolt, adopt annular cut mode, can realize pretension, connection and fixed function, this pretension bolt is screwed in fire-working article inner when paying, in use, can disassemble in fire-working article, be screwed in fixation through susceptor through-holes, fixation locked, thus realizes fixation and be connected with the effective of pedestal and fix.
The technical solution adopted for the present invention to solve the technical problems is: a kind of split type annular shears high strength pretension bolt, comprises bolt head and bolt shank.
Described bolt head is cylindrical structure, and one end outer wall has outside thread, for the connection with fixation; The other end has tapped hole along axis; Circumferentially outer lug in the middle part of cylindrical body, has annular cut groove along cylindrical body outer wall on protruding; Described bolt shank is cylindrical structure, and one end is the outside thread mated with the tapped hole of bolt head, and bolt shank axially has the center hole run through, and sidewall has the exhaust port of radial through bolt bar, and exhaust port is communicated with center hole.
Described bolt shank is connected by the mode and bolt head being coated with curable epoxide glue on outside thread.
Described exhaust port is distributed in bolt shank two ends.
The projection of described bolt head is uniform some driving holes towards tapped hole side.
Described bolt head material is titanium alloy TC 4, and bolt shank material is tungsten alloy, and curable epoxide glue is 914 fast binders.
The invention has the beneficial effects as follows: have larger tension, compressive strength and anti-twisting property.Under thrust, make it in predetermined annular cut groove position fracture, realize being separated of fixation and pedestal, the results showed that its pull-off force can reach 30kN ~ 100kN, anti-twisting property >=80Nm; Achieving pretension bolt and matrix transporting, when storing is monolithic construction, installs after being dismantled by pretension bolt during use again, simple to operate, solves the difficult problem that matrix disaster is installed.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of bolt head shown in Fig. 1, and wherein 2a is side view, and 2b is schematic diagram
Fig. 3 is the structural representation of bolt shank shown in Fig. 1;
In figure, 1-bolt head, 2-curable epoxide glue, 3-bolt shank, 1a-screw thread, 1b-tapped hole, 1c-annular cut groove, 1d ~ 1g-driving hole, 3a-screw thread, 3b ~ 3ed-exhaust port.
Embodiment
Below in conjunction with drawings and Examples, the present invention is further described, the present invention includes but be not limited only to following embodiment.
A kind of split type annular shears high strength pretension bolt, comprises bolt head and bolt shank.
Described bolt head is cylindrical structure, and one end is screw thread, for the connection with bullet; The other end is tapped hole, for the connection with bolt shank; In the middle part of cylindrical body, circumferentially projection has thickness to be the annulus of 5.2mm, there are 4 uniform driving holes annulus right side, annulus right side centre bit is equipped with predetermined annular cut groove, and annular cut groove internal diameter is equal with bolt head right-hand member external diameter, and cut groove external diameter and driving hole minimum range are 1mm.
Described bolt shank is cylindrical structure, and one end is screw thread, for the connection with bolt head, has radial direction to run through cylindrical exhaust port near run-out(of thread) 7mm place; The other end distance end face 8mm place has radial direction to run through cylindrical exhaust port, axially has the center hole run through to communicate with rod radial air vent.Linked together by the mode and bolt head that are coated with curable epoxide glue on bolt shank screw thread.
See accompanying drawing 1 ~ Fig. 3, the present embodiment provides a kind of split type annular and shears high strength pretension bolt, comprises bolt head 1, curable epoxide glue 2, bolt shank 3 (as shown in Figure 1).
Bolt head 1 is cylindrical structure, one end is screw thread 1a, the other end is tapped hole 1b, and in the middle part of cylindrical body, circumferentially the thickness of projection is that the annulus right side of 5.2mm has predetermined annular cut groove 1c, and is distributed on driving hole 1d, 1e, 1f and 1g of annulus right side.
Bolt shank 3 is the cylindrical structure of hollow, and one end is screw thread 3a, has radial direction to run through cylindrical exhaust port 3b and 3c near screw thread place; The radial direction that has the other end runs through cylindrical exhaust port 3d and 3e.
During making, the screw thread 3a of bolt shank 3 is coated with curable epoxide glue 2, is then screwed in the tapped hole 1b of bolt head 1.
Bolt head material described in the present embodiment is titanium alloy TC 4.
Bolt shank material described in the present embodiment is high-specific gravity tungsten alloy.The preferred curable epoxide glue of the present embodiment is 914 fast binders.
Claims (5)
1. split type annular shears a high strength pretension bolt, comprises bolt head and bolt shank, it is characterized in that: described bolt head is cylindrical structure, and one end outer wall has outside thread, for the connection with fixation; The other end has tapped hole along axis; Circumferentially outer lug in the middle part of cylindrical body, has annular cut groove along cylindrical body outer wall on protruding; Described bolt shank is cylindrical structure, and one end is the outside thread mated with the tapped hole of bolt head, and bolt shank axially has the center hole run through, and sidewall has the exhaust port of radial through bolt bar, and exhaust port is communicated with center hole.
2. split type annular according to claim 1 shears high strength pretension bolt, it is characterized in that: described bolt shank is connected by the mode and bolt head being coated with curable epoxide glue on outside thread.
3. split type annular according to claim 1 shears high strength pretension bolt, it is characterized in that: described exhaust port is distributed in bolt shank two ends.
4. split type annular according to claim 1 shears high strength pretension bolt, it is characterized in that: the projection of described bolt head is uniform some driving holes towards tapped hole side.
5. split type annular according to claim 1 shears high strength pretension bolt, and it is characterized in that: described bolt head material is titanium alloy TC 4, bolt shank material is tungsten alloy, and curable epoxide glue is 914 fast binders.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420574504.XU CN204253542U (en) | 2014-09-30 | 2014-09-30 | A kind of split type annular shears high strength pretension bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420574504.XU CN204253542U (en) | 2014-09-30 | 2014-09-30 | A kind of split type annular shears high strength pretension bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204253542U true CN204253542U (en) | 2015-04-08 |
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ID=52957855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420574504.XU Expired - Fee Related CN204253542U (en) | 2014-09-30 | 2014-09-30 | A kind of split type annular shears high strength pretension bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204253542U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105332988A (en) * | 2015-12-16 | 2016-02-17 | 苏州太湖国家旅游度假区希成五金加工厂 | High-strength detachable bolt |
| CN112161524A (en) * | 2020-08-25 | 2021-01-01 | 四川航天川南火工技术有限公司 | Explosion bolt resistant to space ultralow-temperature environment |
-
2014
- 2014-09-30 CN CN201420574504.XU patent/CN204253542U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105332988A (en) * | 2015-12-16 | 2016-02-17 | 苏州太湖国家旅游度假区希成五金加工厂 | High-strength detachable bolt |
| CN112161524A (en) * | 2020-08-25 | 2021-01-01 | 四川航天川南火工技术有限公司 | Explosion bolt resistant to space ultralow-temperature environment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150408 Termination date: 20200930 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |