CN208570382U - A kind of stroke protection mechanism of microswitch - Google Patents
A kind of stroke protection mechanism of microswitch Download PDFInfo
- Publication number
- CN208570382U CN208570382U CN201821179852.1U CN201821179852U CN208570382U CN 208570382 U CN208570382 U CN 208570382U CN 201821179852 U CN201821179852 U CN 201821179852U CN 208570382 U CN208570382 U CN 208570382U
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- CN
- China
- Prior art keywords
- retaining ring
- microswitch
- bogie
- shaft
- rocker arm
- Prior art date
- 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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Abstract
The utility model relates to a kind of stroke protection mechanisms of microswitch; including microswitch component, bogie, retaining ring, shaft, shift plate; micro switch mechanism rocker arm is mounted on pin shaft and can be rotated; bogie connects power intake; trapezoidal annular groove is provided on the bogie; retaining ring section is rectangle; and it is mounted in trapezoidal annular groove; the part of the middle major diameter of shift plate is provided with the gap for accommodating one end; the part of minor diameter is located in retaining ring, and fixed column is located between the mounting ear of retaining ring in shaft.The utility model all uses mechanical parts, realizes automatic protection functions, improves the reliability of product.
Description
Technical field
The utility model relates to a kind of stroke protection mechanism, the stroke protection mechanism of especially a kind of microswitch.
Background technique
Microswitch control stroke mechanism be commonly utilized in aircraft electrical control system, by microswitch triggering with
Interrupt the rotation angle for carrying out control device output shaft, when microswitch failure cannot provide interrupt signal sometimes, output shaft meeting
Continue to rotate, caused by will being possible to because of overtravel phenomenon in device other components damage.Domestic control stroke is protected at present
The technology of shield mostly uses greatly sensor feedback output signal, and implementation manually controls, and this mode not enough automates, and needs artificially to grasp
Make fast and accurately, and sensor will receive surrounding environment influence and introduce risk, causes to fail or report by mistake.
Summary of the invention
The purpose of the utility model is to provide a kind of stroke protection mechanisms of microswitch, and the stroke of switch may be implemented certainly
Dynamic defencive function, damages device internal component after avoiding overtravel, is not required to manually control, and has the degree of automation
High, safe and reliable feature.
The specific technical solution of the utility model is: the stroke protection mechanism of microswitch includes microswitch component, drives
Moving frame, retaining ring, shaft, shift plate, micro switch mechanism include microswitch, rocker arm, spring leaf, pin shaft, and rocker arm is mounted on pin shaft
It goes up and can be rotated, rocker arm side is arranged in the gap of shift plate, and the other end installs two spring leafs, and the spring leaf is located at two
Between a microswitch；Bogie connects power intake, trapezoidal annular groove is provided on the bogie, retaining ring section is
Rectangle, and be mounted in trapezoidal annular groove, shift plate is the terraced structure being made of two annulus, wherein the part setting of major diameter
There is the gap for accommodating one end, the part of minor diameter is located in retaining ring, and is provided with the gap for accommodating retaining ring mounting ear, shaft
On be fixed with column, the column is located between the mounting ear of retaining ring.
When the utility model at work, power input drives bogie rotation by driving motor, and bogie drives retaining ring
Rotation, retaining ring drive output shaft to rotate by mounting ear, meanwhile, the mounting ear of retaining ring drives shift plate to rotate together, shift plate rotation
Afterwards, when shaft rotates certain value, the gap of shift plate major diameter position contacts rocker arm, stirs spring leaf by rocker arm and turns around pin shaft
It is dynamic, the triggering of triggering microswitch component control circuit and interruption.The utility model passes through shift plate open slot angle controller row
It is dynamic that protection mechanism is arranged by parameters such as ladder type annular groove angles in the thickness, outside diameter, bogie of retaining ring in journey output angle
The torque value Tn of work, as output torque Tc≤Tn, protection mechanism is failure to actuate, the normal output torque of device；Work as microswitch
When failure, shaft can continue output torque, and as Tc > Tn, protection mechanism movement, retaining ring is slided in ladder type annular groove, terminate torque
Clutch protection is played the role of in output, and the utility model all uses mechanical parts, realizes automatic protection functions, improves production
The reliability of product.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is microswitch component schematic diagram；
Fig. 3 is the members schematic diagram of the utility model；
Fig. 4 is retaining ring schematic view of the mounting position.
Specific embodiment
As shown, the stroke protection mechanism of microswitch include microswitch component, bogie 2, retaining ring 3, shaft 4,
Shift plate 5, micro switch mechanism include microswitch 1, rocker arm 6, spring leaf 7, pin shaft 8, and rocker arm 6 is mounted on pin shaft 8 and can turn
Dynamic, 6 side of rocker arm is arranged in the gap of shift plate 5, and the other end installs two spring leafs 7, and the spring leaf 7 is micro- positioned at two
Between dynamic switch 1；Bogie 2 connects power intake, trapezoidal annular groove is provided on the bogie 2,3 section of retaining ring is
Rectangle, and be mounted in trapezoidal annular groove, shift plate 5 is the terraced structure being made of two annulus, and wherein the part of major diameter is set
It is equipped with the gap for accommodating 6 one end of rocker arm, the part of minor diameter is located in retaining ring 3, and is provided with and accommodates slitting for 3 mounting ear of retaining ring
Mouthful, it is fixed with column in shaft 4, the column is located between the mounting ear of retaining ring 3.
Claims (1)
1. a kind of stroke protection mechanism of microswitch, which is characterized in that the mechanism includes microswitch component, bogie
(2), retaining ring (3), shaft (4), shift plate (5), micro switch mechanism include microswitch (1), rocker arm (6), spring leaf (7), pin
Axis (8), rocker arm (6) are mounted on pin shaft (8) and can be rotated, and rocker arm (6) side is arranged in the gap of shift plate (5), the other end
Two spring leafs (7) are installed, the spring leaf (7) is located between two microswitches (1)；It is defeated that bogie (2) connects power
Entering end, trapezoidal annular groove is provided on the bogie (2), retaining ring (3) section is rectangle, and is mounted in trapezoidal annular groove,
Shift plate (5) is the terraced structure being made of two annulus, and wherein the part of major diameter, which is provided with, accommodates slitting for rocker arm (6) one end
Mouthful, the part of minor diameter is located in retaining ring (3), and is provided with the gap for accommodating retaining ring (3) mounting ear, and shaft is fixed on (4)
Column, the column are located between the mounting ear of retaining ring (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821179852.1U CN208570382U (en) | 2018-07-20 | 2018-07-20 | A kind of stroke protection mechanism of microswitch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821179852.1U CN208570382U (en) | 2018-07-20 | 2018-07-20 | A kind of stroke protection mechanism of microswitch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208570382U true CN208570382U (en) | 2019-03-01 |
Family
ID=65447637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821179852.1U Active CN208570382U (en) | 2018-07-20 | 2018-07-20 | A kind of stroke protection mechanism of microswitch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208570382U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109036892A (en) * | 2018-07-20 | 2018-12-18 | 中国航发哈尔滨东安发动机有限公司 | A kind of stroke protection mechanism of microswitch |
-
2018
- 2018-07-20 CN CN201821179852.1U patent/CN208570382U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109036892A (en) * | 2018-07-20 | 2018-12-18 | 中国航发哈尔滨东安发动机有限公司 | A kind of stroke protection mechanism of microswitch |
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