CN-121977806-A - Fatigue resistance detection device and method for closed door locking mechanism of civil air defense

CN121977806ACN 121977806 ACN121977806 ACN 121977806ACN-121977806-A

Abstract

The invention relates to a fatigue resistance detection device and a detection method of a locking mechanism of a civil air-defense airtight door, which are used for carrying out cyclic action test on the locking mechanism arranged on the civil air-defense airtight door, and comprise a detection base, a detection base and a detection base, wherein the installation surface of the detection base is configured to simulate the locking mechanism installation structure corresponding to the front surface or the back surface of the civil air-defense airtight door; the device comprises a detection base, a power unit, a gear transmission unit and a locking mechanism, wherein the power unit is arranged on the detection base and comprises a driving motor and a cycloidal reducer connected with the output end of the driving motor, the gear transmission unit comprises a pinion connected with the output shaft of the cycloidal reducer and a large gear meshed and driven with the pinion, the large gear is used for being in driving connection with an input rotating shaft of the locking mechanism to be detected, and the driving motor drives the input rotating shaft of the locking mechanism to conduct forward and reverse reciprocating rotation so as to simulate opening and closing actions of the locking mechanism. The anti-fatigue detection device for the locking mechanism of the civil air defense airtight door has the advantages of reasonable structure, real simulation, high degree of automation and capability of completing high-frequency cyclic test.

Inventors

TANG SHA
WU JIALIN
WEN LONG
ZHANG LANG
LI XIAOBO
ZHAO LIU
LIU SHIYONG

Assignees

鼎立九州质检技术服务有限公司

Dates

Publication Date: 20260505
Application Date: 20260313

Claims (10)

1. An anti-fatigue detection device of a closed door locking mechanism of a civil air defense, which is used for carrying out a cyclic action test on the locking mechanism (6) arranged on the closed door of the civil air defense, and is characterized by comprising: a detection base (1) with a mounting surface configured to simulate a mounting structure of a locking mechanism (6) corresponding to the front or back of the civil air-defense airtight door; the power unit is arranged on the detection base (1) and comprises a driving motor (2) and a cycloid reducer (3) connected with the output end of the driving motor (2); the gear transmission unit comprises a pinion (4) connected with the output shaft of the cycloidal reducer (3) and a large gear (5) meshed with the pinion (4), and the large gear (5) is used for being in driving connection with an input rotating shaft (61) of the locking mechanism (6) to be tested; The driving motor (2) drives the input rotating shaft (61) of the locking mechanism (6) to perform forward and reverse reciprocating rotation sequentially through the cycloid speed reducer (3), the pinion (4) and the large gear (5) so as to simulate the opening and closing actions of the locking mechanism (6).
2. The anti-fatigue detection device of a civil air defense closure door locking mechanism according to claim 1, characterized in that the device is configured to control the locking mechanism (6) to complete more than 5000 cycles of opening and closing actions, the large gear (5) being located above the small gear (4).
3. The anti-fatigue detection device of the air defense airtight door locking mechanism according to claim 1, further comprising a supporting frame (7), wherein the detection base (1) is fixedly arranged on the supporting frame (7).
4. The anti-fatigue detection device of the air defense airtight door locking mechanism according to claim 3, wherein the supporting frame (7) is of a rigid welding structure or a bolt connection structure, and the bottom of the supporting frame is provided with an inclined support (71).
5. A fatigue resistance detection device for a closed door locking mechanism according to claim 1 or 3, wherein the detection base (1) is provided with a mounting adjusting plate (101), and the mounting adjusting plate (101) is provided with a mounting hole array (111) distributed along a plurality of directions for adaptively mounting and fixing the power unit.
6. The anti-fatigue detection device of the air defense airtight door locking mechanism according to claim 1, wherein the center of the large gear (5) is provided with a connecting structure for detachably connecting with an input rotating shaft (61) of the locking mechanism (6).
7. The fatigue resistance detection device of the air defense airtight door locking mechanism according to claim 6, wherein the connecting structure is a splined hole (51), a flat key connecting groove or a flange connecting disc.
8. The anti-fatigue detection device of the air-defense airtight door locking mechanism according to claim 1, further comprising a control unit (8), wherein the control unit (8) is electrically connected with the driving motor (2) and is used for controlling the start-stop, steering, rotating speed and running period of the driving motor (2) and recording and displaying the number of action cycles completed by the locking mechanism (6); the device also comprises an angle sensor (9) for monitoring the rotation angle of the locking mechanism (6), wherein the angle sensor (9) is arranged on the rotating shaft of the large gear (5) or the input rotating shaft (61) of the locking mechanism (6).
9. The anti-fatigue detection device of the air-defense door locking mechanism according to claim 8, wherein the control unit (8) comprises a parameter setting module for presetting the detection total cycle times, the single cycle time and the operation parameters of the driving motor (2).
10. A fatigue resistance detection method of a closed door locking mechanism of a civil air defense, adopting the fatigue resistance detection device of the closed door locking mechanism of the civil air defense as claimed in any one of claims 1 to 9, characterized in that the method comprises the following steps: Step S1, a locking mechanism (6) to be detected is arranged on the detection base (1), and an input rotating shaft (61) of the locking mechanism is in driving connection with the large gear (5); S2, setting driving parameters including preset detection total cycle times by the control unit (8), wherein the times are more than 5000 times; Step S3, starting a detection device, controlling the driving motor (2) to run according to set parameters by the control unit (8), driving the locking mechanism (6) to reciprocate through the cycloid reducer (3), the pinion (4) and the large gear (5), and simulating the opening and closing of the locking mechanism; step S4, in the reciprocating action process of the locking mechanism (6), the control unit (8) and/or the angle sensor (9) monitor the running state and record the cycle times; and S5, judging the fatigue resistance of the locking mechanism (6) based on the preset detection total cycle times and the running state monitoring result.

Description

Fatigue resistance detection device and method for closed door locking mechanism of civil air defense Technical Field The invention relates to the technical field of civil air defense engineering equipment detection, in particular to a device and a detection method for detecting fatigue resistance of a locking mechanism of a civil air defense airtight door. Background The security airtight door is an important protective device in civil air-defense engineering, and the reliability and durability of a locking mechanism of the security airtight door are directly related to the protective efficiency of the engineering. The locking mechanism needs to bear repeated mechanical stress in the opening and closing process of the door leaf, and abrasion, deformation and even failure can occur in long-term use. Therefore, it is important to detect fatigue resistance of the locking mechanism before shipment or at the time of regular maintenance. At present, manual operation or simple loading test is adopted for detecting the locking mechanism, frequent and standard action cycles in actual use are difficult to simulate, and the action times and the monitoring running state cannot be accurately recorded. The lack of a special detection device which can simulate the actual installation condition of the civil air defense door, automatically run and complete high-frequency (such as more than 5000 times) cyclic test, results in low detection efficiency and inaccurate results, and cannot fully evaluate the long-term reliability of the locking mechanism. Disclosure of Invention The invention aims to overcome the defects of the prior art and provide the anti-fatigue detection device of the closed door locking mechanism of the civil air defense, which has the advantages of reasonable structure, real simulation, high degree of automation and capability of completing high-frequency cyclic tests. In order to achieve the above purpose, the invention is realized by the following technical scheme: An anti-fatigue detection device of a closed door locking mechanism of a civil air defense, which is used for carrying out cyclic action test on the locking mechanism installed on the closed door of the civil air defense, and comprises: A detection base, the installation surface of which is configured to simulate a locking mechanism installation structure corresponding to the front or back of the civil air-defense airtight door; the power unit is arranged on the detection base and comprises a driving motor and a cycloid speed reducer connected with the output end of the driving motor; The gear transmission unit comprises a pinion connected with the output shaft of the cycloidal reducer and a large gear meshed with the pinion for transmission, and the large gear is used for being in driving connection with an input rotating shaft of a locking mechanism to be tested; The driving motor drives the input rotating shaft of the locking mechanism to conduct forward and reverse reciprocating rotation sequentially through the cycloid speed reducer, the pinion and the large gear, so that opening and closing actions of the locking mechanism are simulated. Preferably, the device is configured to control the latching mechanism to complete more than 5000 cycles of opening and closing motion with the large gear positioned above the small gear. Preferably, the detecting base further comprises a supporting frame, and the detecting base is fixedly arranged on the supporting frame. Preferably, the support frame is a rigid welded structure or a bolt connection structure, and the bottom of the support frame is provided with an inclined support. Preferably, the detection base is provided with an installation adjusting plate, and the installation adjusting plate is provided with an installation hole array distributed along a plurality of directions and used for adaptively installing and fixing the power unit. Preferably, a connecting structure for detachably connecting with the input rotating shaft of the locking mechanism is arranged in the center of the large gear. Preferably, the connection structure is a splined hole, a flat key connection groove or a flange connection disc. Preferably, the automatic locking device further comprises a control unit, an angle sensor and a locking mechanism, wherein the control unit is electrically connected with the driving motor and used for controlling the starting and stopping, steering, rotating speed and running period of the driving motor, recording and displaying the number of action cycles completed by the locking mechanism, and the angle sensor is used for monitoring the rotating angle of the locking mechanism and is arranged on the rotating shaft of the large gear or the input rotating shaft of the locking mechanism. Preferably, the control unit includes a parameter setting module for presetting a detection total cycle number, a single cycle time, and an operation parameter of the driving motor. Preferably, the gear tran