A large anti-falling nut for a shock tube
A technology of large nuts and shock tubes, applied in the direction of nuts, bolts, threaded fasteners, etc., can solve problems such as potential safety hazards, achieve labor-saving operations, ensure connection strength, and reduce friction
Active Publication Date: 2021-01-15
BEIJING CHANGCHENG INST OF METROLOGY & MEASUREMENT AVIATION IND CORP OF CHINA
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Problems solved by technology
[0003] The purpose of the present invention is to solve the problem of potential safety hazards in the prior art, and to provide a shock tube anti-falling large nut; the large nut is connected to the low-pressure chamber by a tapered roller bearing, and connected to the high-pressure chamber by a screw thread. The method realizes that when the big nut rotates, only one side of the thread works, the operation is relatively labor-saving, and the relative position between the big nut and the low-pressure chamber will not change, and the big nut will not fall off in the low-pressure chamber, ensuring the safety of personnel and equipment
Method used
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Embodiment Construction
[0012] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0013] Shock tube anti-falling big nut, the principle structure is as follows figure 1 As shown, the main components of this embodiment include: high-pressure end 1 for ruptured membrane, handle 2, large nut 3, mounting flange 4 for large nut, tapered roller bearing 5, mounting flange 6 for low-pressure section, and low-pressure end 7 for ruptured membrane.
[0014] One side of the membrane-rupturing high-pressure end 1 is connected to the high-pressure section of the shock tube through a threaded hole, and the other side is a trapezoidal thread for forming a threaded connection with the large nut 3. The membrane-rupturing high-pressure end 1 is close to the membrane-rupturing low-voltage There is a circular protrusion on the side wall of the end 7, which is used to increase the pressure on the diaphragm and prevent the diaphragm from being washed into ...
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The invention belongs to the field of shock tube devices, and relates to a shock tube anti-drop big nut, in particular to a shock tube anti-drop big nut based on tapered roller bearing connection. Theshock tube anti-drop big nut comprises a membrane breaking high-pressure end, a handle, a big nut body, a big nut mounting flange, a tapered roller bearing, a low-pressure section mounting flange anda membrane breaking low-pressure end. The big nut body is connected with a low-pressure chamber through the tapered roller bearing and is connected with a high-pressure chamber through threads, whenthe big nut body is rotated, only threads on one side work, operation saves labor, the relative position of the big nut body and the low-pressure chamber is not changed, the big nut body does not dropon the low-pressure chamber, and personnel and device safety is ensured.
Description
technical field [0001] The invention belongs to the field of shock tube devices, and relates to a shock tube anti-falling large nut, in particular to a shock tube anti-falling large nut based on a tapered roller bearing connection. Background technique [0002] With the development of science and technology, the measurement of dynamic parameters is becoming more and more important. As a very important physical quantity in engineering practice and scientific application fields, dynamic pressure can be encountered at any time. The shock tube is currently the most commonly used dynamic pressure calibration device. To calibrate the dynamic performance of the pressure sensor, such as rise time, resonance frequency and transfer function, etc., the shock tube body is mainly composed of high and low pressure chambers, which are connected by large nuts. The two sides of the large nut of the existing shock tube are left-handed and right-handed threads respectively, and the high and lo...
Claims
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IPC IPC(8): G01M9/04
CPCF16B37/00F16B41/00
Inventor 王辰辰蔡菁王洪博
Owner BEIJING CHANGCHENG INST OF METROLOGY & MEASUREMENT AVIATION IND CORP OF CHINA