CN111673674B - Pin puller and unlocking separation verification device thereof - Google Patents
Pin puller and unlocking separation verification device thereof Download PDFInfo
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- CN111673674B CN111673674B CN202010611390.1A CN202010611390A CN111673674B CN 111673674 B CN111673674 B CN 111673674B CN 202010611390 A CN202010611390 A CN 202010611390A CN 111673674 B CN111673674 B CN 111673674B
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- pin
- separation
- shell
- upper support
- unlocking
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B29/00—Accessories
Abstract
The invention relates to a pin puller and an unlocking separation verification device thereof, wherein the pin puller comprises: the device comprises a shell (11), a shearing pin (12) arranged on the shell (11), a pin shaft (13) coaxially arranged with the shearing pin (12), and a controller (14) arranged on the shell (11); a separating surface (121) is arranged at the position where the shearing pin (12) is connected with the pin shaft (13); the controller (14) is used for controlling the position separation of the shear pin (12) and the pin shaft (13) on the separation surface (121). The pin puller is simple in structure and convenient to use, and particularly can adjust the separation of the positions of the separating surfaces by adjusting the added trigger medicament, so that the stable separation of the pin puller is ensured.
Description
Technical Field
The invention relates to the field of spaceflight, in particular to a pin puller and an unlocking separation verification device thereof.
Background
The pin puller is a device which utilizes electric energy to deflagrate filled pyrotechnic compositions and generate high-temperature and high-pressure gas to push a piston to move, and has the characteristics of small volume, light weight, small required excitation energy, safe use, reliable action and the like, and the pin puller is widely used for aerospace systems. In the application process, the pin puller is mainly used for realizing important fastening connection equipment of an aircraft and a rocket, and the pin puller at the ascending section of the assembly is required to bear complex working conditions, so that the connection safety of the ascending section assembly is ensured, and the unlocking and separation are ensured to be reliable. Whether unlocking separation is reliable or not at the detonation moment of the pin puller directly relates to success or failure of a space launching task. The pin puller realizes unlocking separation by means of impact force generated by powder explosion, has large data discreteness, needs to verify the design correctness of the pin puller and evaluates impact and reasoning process generated by explosion. The unlocking and separation of the pin puller are difficult to simulate by simulation analysis and must be verified by an unlocking and separation test.
Disclosure of Invention
The invention aims to provide a pin puller and an unlocking and separating verification device thereof, which are used for realizing local stable connection and separation of an aircraft assembly.
Another object of the present invention is to provide a pin puller and an unlocking separation verification device thereof, which can accurately simulate and measure thrust and explosion impact response of the pin puller.
To achieve the above object, the present invention provides a pin puller, comprising: the device comprises a shell, a shearing pin, a pin shaft and a controller, wherein the shearing pin is arranged on the shell;
a separating surface is arranged at the position where the shearing pin is connected with the pin shaft;
the controller is used for controlling the shearing pin and the pin shaft to be separated at the position of the separating surface.
According to one aspect of the invention, the location within the housing to which the shear pin is connected is filled with a trigger medicament and the controller is in contact with the trigger medicament.
According to one aspect of the invention, the controller is an igniter for ignition.
According to an aspect of the invention, the pin is axially disengaged from the parting plane if the trigger dose is triggered by the controller.
According to one aspect of the invention, the end of the pin remote from the shear pin is provided with a removable locking member.
According to one aspect of the invention, a mounting structure is provided on the housing.
To achieve the above object, the present invention provides an unlocking separation verification apparatus, including: the device comprises an upper support, a lower support, a support connecting piece, a thrust sensor, a connecting seat and a shaft sleeve, wherein the lower support is arranged at an interval with the upper support and is detachably connected with the upper support;
the upper support is connected with the shell of the pin puller, and the shaft sleeve is connected with a pin shaft of the pin puller.
According to one aspect of the invention, the housing is located between the upper support and the lower support;
the upper support is provided with a through hole for the pin shaft to pass through and a connecting structure which is arranged corresponding to the mounting structure on the shell.
According to one aspect of the invention, a plurality of impact sensors are arranged on the upper support, the lower support or the connecting seat, and the impact sensors are arranged in an axis array of the pin shaft.
According to one aspect of the invention, the distance between the impact sensor and the axis of the pin is 100 mm.
According to one scheme of the invention, the pin puller is simple in structure and convenient to use, and particularly, the separation of the positions of the separating surfaces can be adjusted by adjusting the added trigger medicament, so that the stable separation of the pin puller is ensured.
According to the scheme of the invention, the specially designed unlocking separation test device is simple in form and convenient and quick to clamp.
According to the scheme, the test scheme for simulating the unlocking and the separation of the cruise aircraft assembly in the ground test stage is provided, the separation test scheme is scientific, the explosion impact and the unlocking reliability at the separation moment of the pin puller can be effectively obtained, the method for measuring the thrust process and the impact response of the catapult is effectively provided, and reliable data support can be provided for the cruise aircraft and the rocket separation scheme.
According to one scheme of the invention, the adopted instrument and equipment are measuring tools commonly used in laboratories, and the test scheme is easy to implement, so that the method has strong popularization and application values.
According to one scheme of the invention, the unlocking separation verifying device is composed of a simple structure of a shaft sleeve, two fixed supports and the like. Simulate the actual aircraft of pin puller through the axle sleeve and add the structure of holding, simulate aircraft installation fixed position through fixing support, not only simple structure, convenient to use is nimble moreover. In addition, the pin puller also adopts a practical application structure, so that the truth and reliability of data acquisition at the moment of firing are ensured.
Drawings
FIG. 1 schematically illustrates a block diagram of a pin puller according to one embodiment of the invention;
fig. 2 is a view schematically showing an installation structure of a pin puller and an unlocking separation verifying means according to an embodiment of the present invention.
Detailed Description
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
In describing embodiments of the present invention, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship that is based on the orientation or positional relationship shown in the associated drawings, which is for convenience and simplicity of description only, and does not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, the above-described terms should not be construed as limiting the present invention.
The present invention is described in detail below with reference to the drawings and the specific embodiments, which are not repeated herein, but the embodiments of the present invention are not limited to the following embodiments.
As shown in fig. 1, according to an embodiment of the present invention, a pin puller of the present invention includes: a housing 11, a shear pin 12 mounted on the housing 11, a pin shaft 13 disposed coaxially with the shear pin 12, and a controller 14 mounted on the housing 11. In the present embodiment, the parting surface 121 is provided at a position where the shear pin 12 is connected to the pin shaft 13. In the present embodiment, the controller 14 is configured to control the position of the separation surface 121 at which the shear pin 12 and the pin shaft 13 are separated.
As shown in FIG. 1, according to one embodiment of the present invention, the location within the housing 11 to which the shear pin 12 is connected is filled with a trigger medicament and the control 14 is in contact with the trigger medicament. In the present embodiment, the controller 14 is an igniter for ignition. The trigger may be provided as gunpowder. In the present embodiment, the trigger chemical is ignited by the controller 14, and the trigger chemical is ignited and burned to generate high-temperature and high-pressure gas, so that the gas pressure acts on the shear pin 12 to shear the shear pin 12, and the pin 13 flies out in the direction of axially separating from the separation surface 121 to achieve unlocking separation. In the present embodiment, when the pin 13 is axially separated from the separation surface 121, the separation surface 121 may be broken by the high-temperature and high-pressure gas. Certainly, the position of the separating surface 121 can be set to be a locking structure, and the locking structure is broken under the action of high-temperature and high-pressure gas, so that the separating surface 121 is ensured to be complete, and the pin shaft 13 flies out along the direction of axially separating from the separating surface 121 to realize unlocking and separation.
As shown in fig. 1, according to one embodiment of the invention, the end of the pin 13 remote from the shear pin 12 is provided with a removable locking member 131. In the present embodiment, the housing 11 is provided with a mounting structure 111. The locking piece 131 and the mounting structure 111 on the housing 11 are arranged to realize flexible connection of the pin puller of the invention with other structures, so that the pin puller is simple in structure and convenient to connect.
As shown in fig. 1, according to an embodiment of the present invention, an end of the housing 11 away from the pin 13 is provided with a bottom cover 112.
As shown in fig. 2, according to an embodiment of the present invention, an unlocking separation verifying apparatus includes: upper bracket 2, with upper bracket 2 interval set up and can dismantle the undersetting 3 of connection for connect the support connecting piece 4 of upper bracket 2 and undersetting 3, the thrust sensor 5 that is connected with undersetting 3, the connecting seat 6 that is connected with thrust sensor 5, axle sleeve 7. In the present embodiment, the upper support 2 is connected to the housing 11 of the pin remover 1, and the bushing 7 is connected to the pin shaft 13 of the pin remover 1.
As shown in fig. 2, according to one embodiment of the present invention, the upper and lower supports 2 and 3 are arranged in parallel with each other, and the housing 11 is located between the upper and lower supports 2 and 3. In the present embodiment, the upper bracket 2 is provided with a through hole 21 through which the pin shaft 13 passes, and a connecting structure 22 provided corresponding to the mounting structure 111 on the housing 11.
As shown in fig. 1, according to an embodiment of the present invention, a plurality of impact sensors are disposed on the upper holder 2, the lower holder 3, or the connection holder 6, and the impact sensors are disposed in an axial array of the pins 13. In the present embodiment, the distance between the impact sensor and the axis of the pin 13 is 100 mm.
Through the arrangement, the impact curve of the time domain at the separation moment is tested through the data acquisition instrument, and then the impact response spectrum of the frequency domain is obtained through Fourier transform.
To further explain the present invention, an unlocking separation process of the unlocking separation verifying apparatus of the present invention is explained.
S1, fixedly connecting a connecting seat 6 to an ignition test bed, and installing a thrust sensor 5 on the connecting seat 6;
s2, enabling a pin shaft 13 on the pin puller 1 to penetrate through a through hole 21 on the upper support 2, connecting a mounting structure 111 on the shell 11 with a connecting structure 22 on the upper support 2 through a plurality of bolts, and mounting the pin puller on the upper support of the unlocking and separating device;
s3, connecting the impact sensor to a corresponding position on the unlocking separation verification device;
s4, fixing the upper support 2 and the lower support 3 together through a plurality of adjustable bolts 4, and ensuring that the upper support 2 and the lower support 3 are parallel;
s5, sleeving the shaft sleeve 7 on the pin shaft 13 of the pin puller 1, fixing the shaft sleeve 7 by using the locking piece 131, and applying actual required pretightening force through the locking piece 131;
s6, connecting the lower support 3 with the upper end of the thrust sensor 5;
s7, switching on a power supply of the thrust sensor 5, and correcting initial data of the thrust sensor to a zero position;
s8, starting the data acquisition equipment, connecting the controller 14 to an ignition power supply, and starting an unlocking separation test;
s9, acquiring a thrust time history during unlocking and separating through a thrust sensor 5 and acquiring impact response data through an impact sensor;
s10, replacing the pin puller 1 with different dosages, and repeating the steps;
and S11, after the separation test is finished, processing test data and writing an unlocking separation test summary report.
The foregoing is merely exemplary of particular aspects of the present invention and devices and structures not specifically described herein are understood to be those of ordinary skill in the art and are intended to be implemented in such conventional ways.
The above description is only one embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. An unlock separation verification device for a pin puller, the pin puller comprising: the device comprises a shell (11), a shearing pin (12) arranged on the shell (11), a pin shaft (13) arranged perpendicular to the shearing pin (12), and a controller (14) arranged on the shell (11); the position in the shell (11) connected with the shearing pin (12) is filled with trigger medicament, and the controller (14) is in contact with the trigger medicament; a separating surface (121) is arranged at the position where the shearing pin (12) is connected with the pin shaft (13); the controller (14) is used for controlling the position separation of the shear pin (12) and the pin shaft (13) on the separation surface (121); the fill volume of the trigger medicament is adjustable; one end of the pin shaft (13) far away from the shearing pin (12) is provided with a detachable locking piece (131); the shell (11) is provided with a mounting structure (111); if the controller (14) triggers the trigger agent, the pin (13) is axially disengaged from the parting surface (121), characterized in that the unlocking separation verifying unit comprises: the device comprises an upper support (2), a lower support (3) which is arranged at an interval with the upper support (2) and is detachably connected with the upper support, a support connecting piece (4) used for connecting the upper support (2) and the lower support (3), a thrust sensor (5) connected with the lower support (3), a connecting seat (6) connected with the thrust sensor (5), and a shaft sleeve (7);
the upper support (2) is connected with a shell (11) of the pin remover (1), and the shaft sleeve (7) is connected with a pin shaft (13) of the pin remover (1).
2. The unlocking separation authenticating device of claim 1, wherein the housing (11) is located between the upper support (2) and the lower support (3);
the upper support (2) is provided with a through hole (21) for the pin shaft (13) to pass through and a connecting structure (22) which is arranged corresponding to the mounting structure (111) on the shell (11).
3. The unlocking separation verifying device according to claim 2, wherein a plurality of impact sensors are provided on the upper support (2), the lower support (3) or the connecting seat (6), and the impact sensors are arranged in an axial array of the pin shaft (13).
4. The unlocking separation verification device according to claim 3, wherein the distance between the impact sensor and the axis of the pin (13) is 100 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010611390.1A CN111673674B (en) | 2020-06-29 | 2020-06-29 | Pin puller and unlocking separation verification device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010611390.1A CN111673674B (en) | 2020-06-29 | 2020-06-29 | Pin puller and unlocking separation verification device thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111673674A CN111673674A (en) | 2020-09-18 |
| CN111673674B true CN111673674B (en) | 2022-04-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010611390.1A Active CN111673674B (en) | 2020-06-29 | 2020-06-29 | Pin puller and unlocking separation verification device thereof |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102155883A (en) * | 2010-12-27 | 2011-08-17 | 北京理工大学 | Small-size quickly separated firer-unlocking bolt |
| CN103674524A (en) * | 2013-11-29 | 2014-03-26 | 北京宇航系统工程研究所 | Testing device connected with push-punching type initiating explosive device |
| CN103730040A (en) * | 2014-01-10 | 2014-04-16 | 浙江大学 | Aircraft thrust simulation system |
| CN108341075A (en) * | 2018-04-12 | 2018-07-31 | 孝感锐创机械科技有限公司 | A kind of firer's driving separating mechanism |
| CN109900478A (en) * | 2019-03-18 | 2019-06-18 | 西安爱生技术集团公司 | A kind of small and medium size unmanned aerial vehicles rocket thrust test device and test method |
-
2020
- 2020-06-29 CN CN202010611390.1A patent/CN111673674B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102155883A (en) * | 2010-12-27 | 2011-08-17 | 北京理工大学 | Small-size quickly separated firer-unlocking bolt |
| CN103674524A (en) * | 2013-11-29 | 2014-03-26 | 北京宇航系统工程研究所 | Testing device connected with push-punching type initiating explosive device |
| CN103730040A (en) * | 2014-01-10 | 2014-04-16 | 浙江大学 | Aircraft thrust simulation system |
| CN108341075A (en) * | 2018-04-12 | 2018-07-31 | 孝感锐创机械科技有限公司 | A kind of firer's driving separating mechanism |
| CN109900478A (en) * | 2019-03-18 | 2019-06-18 | 西安爱生技术集团公司 | A kind of small and medium size unmanned aerial vehicles rocket thrust test device and test method |
Non-Patent Citations (1)
| Title |
|---|
| 拔销器作用过程的仿真研究;孙洁等;《火工品》;20170215(第1期);第10-13页 * |
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| CN111673674A (en) | 2020-09-18 |
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