CN204313710U - A kind of shearing fracture screw detachable mechanism - Google Patents
A kind of shearing fracture screw detachable mechanism Download PDFInfo
- Publication number
- CN204313710U CN204313710U CN201420774989.7U CN201420774989U CN204313710U CN 204313710 U CN204313710 U CN 204313710U CN 201420774989 U CN201420774989 U CN 201420774989U CN 204313710 U CN204313710 U CN 204313710U
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- CN
- China
- Prior art keywords
- location
- matrix
- dismounting block
- locking screws
- screwed hole
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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.)
- Withdrawn - After Issue
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Abstract
The utility model relates to a kind of shearing fracture screw detachable mechanism, belongs to civil rocket bullet field.Fracture screw detachable mechanism of the present utility model, comprises dismounting block, locking screws, sunk screw, location matrix; Dismounting block is placed in the cylindrical recesses of location body upper surface, 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.Fracture screw detachable mechanism of the present utility model, 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.
Description
Technical field
The utility model relates to a kind of shearing fracture screw detachable mechanism, belongs 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.
Utility model content
The purpose of this utility model is to solve after the closedown structure of traditional structure is subject to cross shear, is difficult to the remainder taking out locking screws, and provides a kind of shearing fracture screw detachable mechanism.
The purpose of this utility model is achieved through the following technical solutions:
One of the present utility model 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 utility model, 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 the utility model fracture screw detachable mechanism sectional view;
Fig. 2 is the sectional view dismantling block in the utility model fracture screw detachable mechanism;
Fig. 3 is the top view dismantling block in the utility model fracture screw detachable mechanism;
Fig. 4 is the structure chart of locking screws in the utility model fracture screw detachable mechanism;
Fig. 5 is the structure chart of locating matrix in the utility model fracture 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 utility model is further described:
Embodiment
One of the present utility model 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 |
|---|---|---|---|
| CN201420774989.7U CN204313710U (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 |
|---|---|---|---|
| CN201420774989.7U CN204313710U (en) | 2014-12-11 | 2014-12-11 | A kind of shearing fracture screw detachable mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204313710U true CN204313710U (en) | 2015-05-06 |
Family
ID=53136018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420774989.7U Withdrawn - After Issue CN204313710U (en) | 2014-12-11 | 2014-12-11 | A kind of shearing fracture screw detachable mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204313710U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104406457A (en) * | 2014-12-11 | 2015-03-11 | 晋西工业集团有限责任公司 | Shear type dismountable mechanism for fracture screw |
-
2014
- 2014-12-11 CN CN201420774989.7U patent/CN204313710U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104406457A (en) * | 2014-12-11 | 2015-03-11 | 晋西工业集团有限责任公司 | Shear type dismountable mechanism for fracture screw |
| CN104406457B (en) * | 2014-12-11 | 2016-05-18 | 晋西工业集团有限责任公司 | A kind of shearing fracture screw detachable mechanism |
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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: 20150506 Effective date of abandoning: 20160518 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |