CN104406457A - Shear type dismountable mechanism for fracture screw - Google Patents
Shear type dismountable mechanism for fracture screw Download PDFInfo
- Publication number
- CN104406457A CN104406457A CN201410753231.XA CN201410753231A CN104406457A CN 104406457 A CN104406457 A CN 104406457A CN 201410753231 A CN201410753231 A CN 201410753231A CN 104406457 A CN104406457 A CN 104406457A
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- CN
- China
- Prior art keywords
- dismounting block
- location
- matrix
- screwed hole
- locking screws
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- 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.)
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- 238000010008 shearing Methods 0.000 claims abstract description 9
- 239000011159 matrix material Substances 0.000 claims description 40
- 238000009826 distribution Methods 0.000 claims description 3
- 239000011148 porous material Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000037452 priming Effects 0.000 description 1
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- Connection Of Plates (AREA)
Abstract
The invention relates to a shear type dismountable mechanism for a fracture screw and belongs to the field of civil rocket bullets. The dismountable mechanism for the fracture screw comprises a dismounting block, a closed screw, sink screws and a locating base body, wherein the dismounting block is arranged in a columnar groove in the upper surface of the locating base body; the front ends of two sink screws pass through counter bores in the two sides of the dismounting block and are in threaded connection with threaded holes in the two sides of the inner bottom of the columnar groove of the locating base body, so that the dismounting block and the locating base body are fixed together; a threaded section of the lower end of the closed screw is in threaded connection with the inside of a central threaded hole of the dismounting block; the lower end of the closed screw is inserted into a central light hole in the inner bottom of the columnar groove of the locating base body. The dismountable mechanism for the fracture screw, disclosed by the invention, is simple in structure and convenient to machine, solves the technical problem that the rest parts of the closed screw are hard to take out after a closed structure of an existing conventional structure suffers from a horizontal shearing force, and has important promotion and application values.
Description
Technical field
The present invention relates to a kind of shearing fracture screw detachable mechanism, belong to civil rocket bullet field.
Background technology
In civil rocket bullet transportation, play location, guiding and locking effect mainly through being positioned at the directed button of rocket projectile afterbody; In emission process, it coordinates with rocket gun tube helical guide groove, can ensure that rocket makes low-speed rotation after ejecting gun muzzle, to reduce motor power bias and the asymmetric adverse effect of body profile.
At present, civil rocket bullet is to precise guidance future development, and its inertial navigation system cannot normally work in missile rotation situation, for ensureing the suitability of guided rocket bullet and conventional belt helical guide groove gun tube, requires that directed button can Automatic-falling in emission process.
The directed button automatic dropping device in tradition civil rocket projectile tail portion adopts the locking screws of band cut groove to be connected with body, and during transmitting, locking screws is sheared by gun tube, and after being separated, fracture screw nubbin is still stayed in body.According to the design of rocket projectile blocking force, locking screws is within the specific limits stressed.Under normal circumstances, can not rupture in transport and filling and march process, but in some extreme environments, such as screw material and manufacturing deficiency and manually lift not in place etc. improper when colliding, locking screws is severed sometimes by mistake, and due to locking screws root adopt screw thread be connected with body, and it is smooth to require to shear rear section, nubbin is imbedded in rocket airframe completely, add on bullet and priming system and accurate guidance instrument are housed, therefore conventional tool is adopted to be difficult to it taking-up, time serious, body screw thread even can stress deformation, cause changing screw, cause scrapping of civil rocket bullet or assembly.
Summary of the invention
The object of the invention is to solve after the closedown structure of traditional structure is subject to cross shear, being difficult to the remainder taking out locking screws, and a kind of shearing fracture screw detachable mechanism is provided.
The object of the invention is to be achieved through the following technical solutions:
One of the present invention shearing fracture screw detachable mechanism, comprises dismounting block, locking screws, sunk screw, location matrix;
Locking screws comprises lower end thread segment and upper end cylinder connection section, has annular cut groove between the thread segment of locking screws and cylinder connection section;
The upper surface of location matrix has cylindrical recesses, and in the matrix cylindrical recesses of location, the center at the end has the unthreaded hole that internal diameter is greater than locking screws lower end thread segment external diameter, and in the matrix cylindrical recesses of location, the central light aperture both sides at the end respectively have a screwed hole;
The profile of dismounting block matches with the interior shape of location body upper surface cylindrical recesses, dismounting block center have the screwed hole of vertical perforate, the internal thread of dismounting block screwed hole of centre and the external screw thread of locking screws lower end thread segment match; The both sides of dismounting block screwed hole of centre have the counterbore of vertical perforate; The screwed hole of centre of dismounting block and the distributing position of both sides counterbore match with the central light aperture at the end in the matrix cylindrical recesses of location and the pore size and distribution position of both sides screwed hole respectively;
Dismounting block is placed in the cylindrical recesses of location body upper surface, and the screwed hole of centre on dismounting block and both sides counterbore are aligned with the central light aperture and both sides screwed hole of locating the end in matrix cylindrical recesses respectively; Two sunk screw front ends through dismounting block both sides counterbore, be threaded with the screwed hole of both sides, the end in the matrix cylindrical recesses of location, make dismounting block and locate matrix and fix; The thread segment of locking screws lower end is threaded in the screwed hole of centre of dismounting block, and locking screws lower end is inserted in the central light aperture at the end in the matrix cylindrical recesses of location; Matrix lower end, location and body sidewall are fixed, and cylinder connection section and the directed button of locking screws upper end are fixed.
The course of work
During rocket projectile transport, when locking screws is when being subject to cross shear, this shearing force can be passed on the matrix of location by dismounting block, can not deform for two sunk screws of fixing dismounting block with location matrix; Therefore dismounting block can be unloaded by unclamping two sunk screws, because the thread segment of locking screws lower end is only fixed with the screwed hole of centre of dismounting block, gap is there is in locking screws lower end with the central light aperture at the end in the matrix cylindrical recesses of location, when unloading dismounting block, locking screws is together taken out with dismounting block by the remainder branch after cutting off; If the remainder of locking screws is when the screwed hole of centre internal strain of dismantling block cannot be taken out comparatively greatly, then change the connection that dismounting block completes new locking screws.
Beneficial effect
Fracture screw detachable mechanism of the present invention, structure is simple, easy to process, solves after the closedown structure of traditional structure is subject to cross shear, is difficult to the technological difficulties of taking out locking screws remainder, has important application value.
Accompanying drawing explanation
Fig. 1 is that the present invention is ruptured screw detachable mechanism sectional view;
Fig. 2 is that the present invention is ruptured and dismantled the sectional view of block in screw detachable mechanism;
Fig. 3 is that the present invention is ruptured and dismantled the top view of block in screw detachable mechanism;
Fig. 4 is that the present invention is ruptured the structure chart of locking screws in screw detachable mechanism;
Fig. 5 is that the present invention is ruptured and located the structure chart of matrix in screw detachable mechanism;
Wherein, 1-dismantles block; 2-locking screws; 3-sunk screw; 4-locates matrix.
Detailed description of the invention
Below in conjunction with drawings and Examples, content of the present invention is further described:
Embodiment
One of the present invention shearing fracture screw detachable mechanism, as shown in Figure 1, comprises dismounting block 1, locking screws 2, sunk screw 3, location matrix 4;
As shown in Figure 4, locking screws 2 comprises lower end thread segment and upper end cylinder connection section, has annular cut groove between the thread segment of locking screws 2 and cylinder connection section;
As shown in Figure 5, the upper surface of location matrix 4 has cylindrical recesses, in matrix 4 cylindrical recesses of location, the center at the end has the unthreaded hole that internal diameter is greater than locking screws 2 lower end thread segment external diameter, and in matrix 4 cylindrical recesses of location, the central light aperture both sides at the end respectively have a screwed hole;
As shown in Figure 2,3, the profile of dismounting block 1 matches with the interior shape of location matrix 4 upper surface cylindrical recesses, dismounting block 1 center have the screwed hole of vertical perforate, the internal thread of dismounting block 1 screwed hole of centre and the external screw thread of locking screws 2 lower end thread segment match; The both sides of dismounting block 1 screwed hole of centre have the counterbore of vertical perforate; The screwed hole of centre of dismounting block 1 and the distributing position of both sides counterbore match with the central light aperture at the end in matrix 4 cylindrical recesses of location and the pore size and distribution position of both sides screwed hole respectively;
Dismounting block 1 is placed in the cylindrical recesses of location matrix 4 upper surface, and the screwed hole of centre on dismounting block 1 and both sides counterbore are aligned with the central light aperture and both sides screwed hole of locating the end in matrix 4 cylindrical recesses respectively; Two sunk screw 3 front ends through dismounting block 1 both sides counterbore, be threaded with the screwed hole of both sides, the end in matrix 4 cylindrical recesses of location, make dismounting block 1 fixing with location matrix 4; The thread segment of locking screws 2 lower end is threaded in the screwed hole of centre of dismounting block 1, and locking screws 2 lower end is inserted in the central light aperture at the end in matrix 4 cylindrical recesses of location; Matrix 4 lower end, location and body sidewall are fixed, and cylinder connection section and the directed button of locking screws 2 upper end are fixed.
The course of work
During rocket projectile transport, when locking screws 2 is when being subject to cross shear, this shearing force can be passed on the matrix 4 of location by dismounting block 1, can not deform for two sunk screws 3 of fixing dismounting block 1 with location matrix 4; Therefore dismounting block 1 can be unloaded by unclamping two sunk screws 3, because the thread segment of locking screws 2 lower end is only fixed with the screwed hole of centre of dismounting block 1, gap is there is in locking screws 2 lower end with the central light aperture at the end in matrix 4 cylindrical recesses of location, when unloading dismounting block 1, locking screws 2 is together taken out with dismounting block 1 by the remainder branch after cutting off; If the remainder of locking screws 2 is when the screwed hole of centre internal strain of dismantling block 1 cannot be taken out comparatively greatly, then change the connection that dismounting block 1 completes new locking screws 2.
Claims (1)
1. a shearing fracture screw detachable mechanism, is characterized in that: comprise dismounting block, locking screws, sunk screw, location matrix;
Locking screws comprises lower end thread segment and upper end cylinder connection section, has annular cut groove between the thread segment of locking screws and cylinder connection section;
The upper surface of location matrix has cylindrical recesses, and in the matrix cylindrical recesses of location, the center at the end has the unthreaded hole that internal diameter is greater than locking screws lower end thread segment external diameter, and in the matrix cylindrical recesses of location, the central light aperture both sides at the end respectively have a screwed hole;
The profile of dismounting block matches with the interior shape of location body upper surface cylindrical recesses, dismounting block center have the screwed hole of vertical perforate, the internal thread of dismounting block screwed hole of centre and the external screw thread of locking screws lower end thread segment match; The both sides of dismounting block screwed hole of centre have the counterbore of vertical perforate; The screwed hole of centre of dismounting block and the distributing position of both sides counterbore match with the central light aperture at the end in the matrix cylindrical recesses of location and the pore size and distribution position of both sides screwed hole respectively;
Dismounting block is placed in the cylindrical recesses of location body upper surface, and the screwed hole of centre on dismounting block and both sides counterbore are aligned with the central light aperture and both sides screwed hole of locating the end in matrix cylindrical recesses respectively; Two sunk screw front ends through dismounting block both sides counterbore, be threaded with the screwed hole of both sides, the end in the matrix cylindrical recesses of location, make dismounting block and locate matrix and fix; The thread segment of locking screws lower end is threaded in the screwed hole of centre of dismounting block, and locking screws lower end is inserted in the central light aperture at the end in the matrix cylindrical recesses of location; Matrix lower end, location and body sidewall are fixed, and cylinder connection section and the directed button of locking screws upper end are fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410753231.XA CN104406457B (en) | 2014-12-11 | 2014-12-11 | A kind of shearing fracture screw detachable mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410753231.XA CN104406457B (en) | 2014-12-11 | 2014-12-11 | A kind of shearing fracture screw detachable mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104406457A true CN104406457A (en) | 2015-03-11 |
| CN104406457B CN104406457B (en) | 2016-05-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410753231.XA Expired - Fee Related CN104406457B (en) | 2014-12-11 | 2014-12-11 | A kind of shearing fracture screw detachable mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104406457B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107115610A (en) * | 2017-06-09 | 2017-09-01 | 娄文忠 | The fire extinguisher bomb jettison system and its method of jettisoninging of a kind of individual equipment |
| CN107137845A (en) * | 2017-06-09 | 2017-09-08 | 娄文忠 | A kind of integral type fire extinguisher bomb jettison system of individual equipment and method of jettisoninging |
| CN117840664A (en) * | 2023-12-18 | 2024-04-09 | 中国科学院空间应用工程与技术中心 | High-precision splicing structure and method for ultra-high-speed guide rail |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4187759A (en) * | 1977-09-16 | 1980-02-12 | The United States Of America As Represented By The Secretary Of The Navy | Separation nut system |
| CN201810948U (en) * | 2010-09-26 | 2011-04-27 | 扬州诚德重工有限公司 | Improved T-shaped head foundation bolt |
| WO2012020191A1 (en) * | 2010-08-10 | 2012-02-16 | Astrium Sas | Attachment device with pyrotechnic bolt |
| CN203645054U (en) * | 2013-11-21 | 2014-06-11 | 西安艾力特电子实业有限公司 | Installing and uninstalling mechanism for integrated product |
| CN203668966U (en) * | 2013-11-30 | 2014-06-25 | 重庆诚硕科技有限公司 | Foundation bolt set easy to disassemble |
| CN203939817U (en) * | 2014-07-09 | 2014-11-12 | 北京星网卫通科技开发有限公司 | A kind of detachable connecting device |
| CN204313710U (en) * | 2014-12-11 | 2015-05-06 | 晋西工业集团有限责任公司 | A kind of shearing fracture screw detachable mechanism |
-
2014
- 2014-12-11 CN CN201410753231.XA patent/CN104406457B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4187759A (en) * | 1977-09-16 | 1980-02-12 | The United States Of America As Represented By The Secretary Of The Navy | Separation nut system |
| WO2012020191A1 (en) * | 2010-08-10 | 2012-02-16 | Astrium Sas | Attachment device with pyrotechnic bolt |
| CN201810948U (en) * | 2010-09-26 | 2011-04-27 | 扬州诚德重工有限公司 | Improved T-shaped head foundation bolt |
| CN203645054U (en) * | 2013-11-21 | 2014-06-11 | 西安艾力特电子实业有限公司 | Installing and uninstalling mechanism for integrated product |
| CN203668966U (en) * | 2013-11-30 | 2014-06-25 | 重庆诚硕科技有限公司 | Foundation bolt set easy to disassemble |
| CN203939817U (en) * | 2014-07-09 | 2014-11-12 | 北京星网卫通科技开发有限公司 | A kind of detachable connecting device |
| CN204313710U (en) * | 2014-12-11 | 2015-05-06 | 晋西工业集团有限责任公司 | A kind of shearing fracture screw detachable mechanism |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107115610A (en) * | 2017-06-09 | 2017-09-01 | 娄文忠 | The fire extinguisher bomb jettison system and its method of jettisoninging of a kind of individual equipment |
| CN107137845A (en) * | 2017-06-09 | 2017-09-08 | 娄文忠 | A kind of integral type fire extinguisher bomb jettison system of individual equipment and method of jettisoninging |
| CN107115610B (en) * | 2017-06-09 | 2019-08-30 | 娄文忠 | A kind of fire extinguisher bomb jettison system of individual equipment and its method of jettisoninging |
| CN107137845B (en) * | 2017-06-09 | 2019-09-17 | 娄文忠 | A kind of integral type fire extinguisher bomb jettison system of individual equipment and method of jettisoninging |
| CN117840664A (en) * | 2023-12-18 | 2024-04-09 | 中国科学院空间应用工程与技术中心 | High-precision splicing structure and method for ultra-high-speed guide rail |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104406457B (en) | 2016-05-18 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20160518 |