CN109505710A - A kind of status switch structure of safety device - Google Patents
A kind of status switch structure of safety device Download PDFInfo
- Publication number
- CN109505710A CN109505710A CN201811404279.4A CN201811404279A CN109505710A CN 109505710 A CN109505710 A CN 109505710A CN 201811404279 A CN201811404279 A CN 201811404279A CN 109505710 A CN109505710 A CN 109505710A
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- CN
- China
- Prior art keywords
- switch
- contact spring
- torque motor
- safety position
- working condition
- Prior art date
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02K—JET-PROPULSION PLANTS
- F02K9/00—Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof
- F02K9/08—Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof using solid propellants
- F02K9/32—Constructional parts; Details not otherwise provided for
- F02K9/38—Safety devices, e.g. to prevent accidental ignition
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
The present invention relates to a kind of status switch structures of safety device, including electric connector, working condition switch, fixed plate, attachment base bar, safety position switch, torque motor, safety position switch is made of movable contact spring, static contact spring piece and insulating base, and movable contact spring, static contact spring piece and insulating base are integrally pressed and molded；The structure of working condition switch and the structure that safety position switchs are full symmetric；Working condition switch and safety position switch are separately fixed in fixed plate, and two movable contact springs switched and static contact spring piece pass through cable respectively and be connected with electric connector；Torque motor is fastened in fixed plate, and attachment base bar is fixedly connected on torque motor axis, and torque motor can drive attachment base bar to rotate.The present invention realizes safety device " insurance " and " work " two states conversion function and status detection function, realizes that status switch structure is simple, installation space is small, good environmental adaptability, high reliablity, ensure that solid propellant rocket safety in utilization.
Description
Technical field
The present invention relates to a kind of safety device, in particular to a kind of status switch knot of solid propellant rocket safety device
Structure.
Background technique
Important component of the solid propellant rocket as spacecraft and missile armament dynamical system, to guarantee to store,
Safety in transport, test and use process, must set of safety device between its initiator and igniter.Safety
Device is under " work " state, and the structure allows the detonation wave energy of initiator to pass through and reliably ignite next when initiator detonates
Grade priming system；Under " insurance " state, when initiator accidental ignition, which can stop detonation wave energy and the combustion gas of initiator
Pass through, prevents next stage priming system from being detonated, to guarantee the safety in utilization of solid propellant rocket.
Existing safety apparatus structure is complicated, volume is big, and structure is complicated for status switch, and environmental suitability is poor, and reliability is low.
Existing solid propellant rocket safety device mainly has electromagnetic type and two kinds of torque motor formula, and structure is complicated, volume and weight compared with
Greatly, internal state construction of switch is complicated, reliability is low.With the continuous development of missile armament, to safety device reliability, body
Long-pending and construction weight proposes higher design requirement.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of status switch structures of safety device, to solve as safety dress
Set the problem of structure simple, status switch of good environmental adaptability, high reliablity are provided.
To solve, a kind of the technical solution adopted by the present invention are as follows: status switch knot of safety device
Structure, including electric connector, working condition switch, fixed plate, attachment base bar, safety position switch, torque motor.
The safety position switch is made of movable contact spring, static contact spring piece and insulating base, movable contact spring, static contact spring piece and insulating base one
Compression molding；The structure of the working condition switch and the structure that safety position switchs are full symmetric；The working condition switch
With safety position switch be separately fixed in fixed plate, two switch movable contact springs and static contact spring piece pass through respectively cable be electrically connected
Device is connected.
The torque motor is fastened in fixed plate, and attachment base bar is fixedly connected on torque motor axis, torque
Motor can drive attachment base bar to rotate.
When the safety device is in safety position, attachment base bar squeezes the movable contact spring and static contact spring piece of safety position switch
Closure, closes the switch safety position, and working condition switch disconnects；It is powered by electric connector to torque motor, safety device
Carry out state conversion, torque motor drive attachment base bar to rotate counterclockwise, and attachment base bar squeezes work shape after rotateing in place
The movable contact spring and static contact spring piece of state switch are closed, and close the switch working condition, and safety position switch disconnects, and safety device is in work
Make state.
Generally, the materials such as beryllium-bronze can be used in static contact spring piece, movable contact spring, and expoxy glass cloth material can be used in insulating base, especially
Ground, in order to guarantee switch performance, deflection is preferably not less than 0.5mm, ultimate deformation under static contact spring piece pressured state of the present invention
Amount is preferably no greater than the material of 3mm.
Beneficial effect
The present invention provides a kind of status switch structure of solid propellant rocket safety device, realize safety device " insurance " and
" work " two states conversion function and status detection function, realize that status switch structure is simple, installation space is small, environment is suitable
Answering property is good, high reliablity, is used for solid propellant rocket safety ignitor, and it is safe to ensure that solid propellant rocket uses
Property.
Detailed description of the invention
Fig. 1 is safety device status switch schematic diagram (safety position)；
Fig. 2 is that safety position switchs schematic diagram；
Fig. 3 is in working condition switch schematic diagram；
Fig. 4 is movable contact spring schematic diagram；
Fig. 5 is safety device circuit diagram (safety position)；
In figure: 1- electric connector, 2- cable, 3- working condition switch, 4- fixed plate, 5- attachment base bar, 6- safety position are opened
Pass, 7- torque motor, 8- movable contact spring, 9- static contact spring piece, 10- insulating base.
Specific embodiment
The present invention is described further with reference to the accompanying drawings and examples.
Specific embodiment, a kind of status switch structure of safety device are switched by electric connector 1, cable 2, working condition
3, fixed plate 4, attachment base bar 5, safety position switch 6, torque motor 7 form, and status switch schematic diagram is as shown in Figure 1.Its
The key technical indexes are as follows:
Insure (work) status switch outer dimension: 10 × 15 × 20mm；
Insure reed deflection under (work) status switch pressured state and be not less than 0.5mm, ultimate deformation amount is not more than 3mm；
Insure movable contact spring under (work) status switch free state, the fit-up gap of static contact spring piece is (1.1 ± 0.1) mm；
Insure (work) status switch and act conversion times: being not less than 600 times；
Switch movable contact spring, static contact spring piece design thickness: 0.2mm；
Switch movable contact spring, static contact spring piece plated thickness: 3~5 μm；
Operating temperature: -50~+75 DEG C.
As shown in Fig. 2, safety position switch 6 is made of movable contact spring 8, static contact spring piece 9 and insulating base 10, working condition switch 3
(as shown in Figure 3) structure and safety position switch 6 are full symmetric.Movable contact spring (as shown in Figure 4), static contact spring piece design thickness are
0.2mm, using beryllium-bronze material, reed carries out ageing treatment after solution treatment, and insulating base uses expoxy glass cloth material, moves spring
Piece, static contact spring piece and insulating base are integrally pressed and molded, and spring surface carries out gold-plated processing after molding, and plated thickness is (3~5) μ
m。
Working condition switch 3, safety position switch 6 are adopted with fixed plate 4 and are screwed, by two switch movable contact spring,
Static contact spring piece is connected with cable 2 respectively.Torque motor 7 is connect with fixed plate 4 using screw, torque motor axis and attachment base bar 5
It is fixedly connected, torque motor 7 can drive attachment base bar 5 to rotate.
After assembling product, at safety position (or working condition), attachment base bar 5 squeezes switch spring, working condition
Deflection is not less than 0.5mm under switch and safety position switch static contact spring piece pressured state, and ultimate deformation amount is not more than 3mm, thus
Guarantee on-off action reliability.
Safety device circuit diagram is as shown in figure 5, when safety device is in original state (safety position), 3(4) with 5
(6) point disconnects, 3(4) it is connected with 9 points, i.e., attachment base bar squeezes safety position switch spring, and safety position closes the switch, work
Make status switch disconnection.Send positive electricity to torque motor both ends (1(2) point that is powered by electrical connector port, 7 points (8 points) send it is negative
Electricity), safety device carries out state conversion, and torque motor drives attachment base bar to rotate counterclockwise 270 °, the rotation of attachment base bar
The reed that extruding working condition switchs afterwards in place, 3(4) and 5(6) point connection, 3(4) it is disconnected with 9 points, i.e., working condition is switched and is closed
It closes, safety position switch disconnects, and product is in running order.
When safety device is in running order, 3(4) and 5(6) point connection, 3(4) it is disconnected with 9 points, i.e., attachment base bar squeezes
Working condition switch spring is pressed, working condition closes the switch, and safety position switch disconnects.By electric connector to torque motor two
End energization (11(12) point send positive electricity, and 13 points (14 points) are sent negative electricity), safety device carries out state conversion, and torque motor drives connection
Seat bar rotates clockwise 270 °, and attachment base bar squeezes the reed of safety position switch, 3(4 after rotateing in place) and 5(6) point
Disconnect, 3(4) it is connected with 9 points, i.e., working condition closes the switch, and safety position switch disconnects, and product is in safety position.
By electrical connector port to torque motor both ends alternately for positive electricity and negative electricity completion status conversion function, state turns
After changing to position, the break-make situation of two status switches is able to detect that by electrical connector port, so that it is determined that shape locating for product
State.Safety device can determine that product is in flame proof state when being in safety position；When in running order, it can determine
Product is in propagation of explosion state.
Safety device uses two status switches, guarantees that the status of safety device, status switch have testability,
State verification can be carried out by electrical connector port, and the conversion of 600 next states can be completed.
The safety device status switch structure passed through develop during natural environment, mechanical environment, EMC test,
Reliability growth test, engines ground fire trial, Missile Experiment examination, are all satisfied requirement.
Claims (2)
1. a kind of status switch structure of safety device, including electric connector (1), working condition switch (3), fixed plate (4), connect
Joint chair bar (5), safety position switch (6), torque motor (7), it is characterised in that:
The safety position switch (6) is made of movable contact spring (8), static contact spring piece (9) and insulating base (10), movable contact spring (8), static contact spring piece
(9) it is integrally pressed and molded with insulating base (10)；The structure of the working condition switch (3) and the structure of safety position switch (6)
It is full symmetric；Working condition switch (3) and safety position switch (6) be separately fixed on fixed plate (4), and two switch
Movable contact spring (8) and static contact spring piece (9) are connected by cable (2) with electric connector (1) respectively；
The torque motor (7) is fastened on fixed plate (4), and attachment base bar (5) is fixedly connected on torque motor axis,
Torque motor (7) can drive attachment base bar (5) to rotate；
When the safety device is in safety position, attachment base bar (5) squeeze safety position switch (6) movable contact spring (8) with
Static contact spring piece (9) closure, makes safety position switch (6) closure, and working condition switchs (3) and disconnects；By electric connector (1) to torque
Motor (7) is powered, and safety device carries out state conversion, and torque motor (7) drives attachment base bar (5) to rotate counterclockwise, and connects
Seat bar (5) squeezes the movable contact spring (8) of working condition switch after rotateing in place and static contact spring piece (9) are closed, and switchs working condition
(3) it is closed, safety position switchs (6) and disconnects, and safety device is in running order.
2. status switch structure according to claim 1, it is characterised in that: deformed under static contact spring piece (9) pressured state
Amount is not less than 0.5mm, and ultimate deformation amount is not more than 3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811404279.4A CN109505710A (en) | 2018-11-23 | 2018-11-23 | A kind of status switch structure of safety device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811404279.4A CN109505710A (en) | 2018-11-23 | 2018-11-23 | A kind of status switch structure of safety device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109505710A true CN109505710A (en) | 2019-03-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811404279.4A Pending CN109505710A (en) | 2018-11-23 | 2018-11-23 | A kind of status switch structure of safety device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109505710A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112747632A (en) * | 2020-12-30 | 2021-05-04 | 武汉高德红外股份有限公司 | Transmitter electromechanical fuse with state feedback |
-
2018
- 2018-11-23 CN CN201811404279.4A patent/CN109505710A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112747632A (en) * | 2020-12-30 | 2021-05-04 | 武汉高德红外股份有限公司 | Transmitter electromechanical fuse with state feedback |
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