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Vibrating material level switch and its vibrating device

A technology of vibration device and material level switch, which is used in measuring devices, lubrication indicating devices, engine components, etc., can solve the problems of affecting vibration characteristics, inability to vibrate, affecting the reliability and life of vibration devices, and ensuring reliability and life. Effect

Active Publication Date: 2022-05-10
深圳计为自动化技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the vibration is transmitted through the tension rod, since there is no gap or a small gap between the tension rod and the piezoelectric component, it is easy to cause vibration friction, which will lead to the loss of vibration energy, and the loss of vibration energy will make the vibration become Weak or unable to vibrate will affect the vibration characteristics, thereby affecting the reliability and life of the vibration device

Method used

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  • Vibrating material level switch and its vibrating device
  • Vibrating material level switch and its vibrating device
  • Vibrating material level switch and its vibrating device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] The first embodiment provides a vibrating device for a vibrating material level switch.

[0052] Please refer to Figures 1 to 5 , the vibration device includes:

[0053] Piezoelectric assembly 10 for generating and detecting vibrations;

[0054] The lower bridging block 20, the piezoelectric assembly 10 abuts on the lower bridging block 20, and transmits the vibration generated by it to the lower bridging block 20;

[0055] The transition body 30, there is a gap between the transition body 30 and the piezoelectric assembly 10 and the transition body 30 and the lower bridging block 20, and the lower bridging block 20 is supported and positioned by a support body 90;

[0056] a diaphragm 40, the diaphragm 40 is fixedly sleeved on the transition body 30;

[0057] A pressing piece 60, there is a gap between the pressing piece 60 and the transition body 30, and one end of the pressing piece 60 is fixed to the lower bridging block 20, and the other end is pressed against ...

Embodiment 2

[0086] The second embodiment provides a second vibration device for a vibration level switch.

[0087] The difference between the vibrating device and the first embodiment is that another positioning mechanism is provided.

[0088] Please refer to Figure 10-13 The positioning mechanism shown in the second embodiment includes two fixing pieces 52 arranged side by side, and the fixing pieces 52 respectively pass through the two ends of the upper bridging block 51a and are locked on the transition body 30a.

[0089] Specifically, the transition body 30a includes a disc body 31, and the disc body 31 may be a circular disc body. The disc body 31 is provided with two installation seats 34, as the hanging arm and the installation body in the first embodiment, a groove is formed between the two installation seats 34, and the lower bridging block 20 is installed in the groove. And there are gaps with the two mounting seats 34 .

[0090] The upper bridging block 51a can have two mat...

Embodiment 3

[0093] The third embodiment provides a third vibrating device for a vibrating material level switch.

[0094] The difference between the vibrating device and the first and second embodiments is that another positioning mechanism is provided.

[0095] Please refer to Figure 14-18 , in the structure shown in the third embodiment, the transition body 30b includes a disc body 31 and two hanging arms 32 formed respectively protruding from both sides of the disc body 31, and the positioning mechanism includes an upper bridging block 51b and a pre-tightening bolt 54, The upper bridging block 51b is horizontally installed on the two hanging arms 32, and the upper bridging block 51b has a threaded hole 511b, the pre-tightening bolt 54 is screwed in the threaded hole 511b, and the lower end of the pre-tightening bolt 54 presses against the piezoelectric assembly 10 , preload the piezoelectric assembly. .

[0096] Specifically, one side of the upper part of the hanging arm 32 is a bl...

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PUM

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Abstract

The application discloses a vibrating material level switch and a vibrating device thereof. The vibrating device includes a piezoelectric component, a lower bridging block, a transition body, a membrane, a pressing piece, a positioning mechanism and the like. The piezoelectric component abuts on the lower bridging block, and transmits the vibration generated by it to the lower bridging block. There are gaps between the transition body and the piezoelectric component as well as between the transition body and the lower bridging block, and the lower bridging block is supported and positioned by a supporting body. The diaphragm is fixedly sleeved on the transition body, one end of the pressing member is fixed to the lower bridging block, and the other end presses against the diaphragm to transmit the vibration of the lower bridging block to the diaphragm. The positioning mechanism abuts against the upper end of the piezoelectric assembly, and compresses the piezoelectric assembly on the lower bridge block through the abutment. There are gaps between the transition body and the piezoelectric component, the lower bridging block and the pressing part, so the vibration generated by the piezoelectric component and the transmission of vibration will not be affected, thereby ensuring the reliability and life of the vibration device.

Description

technical field [0001] The present application relates to a vibrating material level switch, in particular to a vibrating device in the vibrating material level switch. Background technique [0002] In modern industrial and agricultural production, it is often necessary to control the storage of plastic granules, coal powder, grains, flour and other granular or powdery solids, and it is often necessary to detect their accurate positions. [0003] The vibration level switch is a high sensitivity vibration level switch composed of a piezoelectric element and a mechanical resonance structure. The voltage signal is output by the control circuit, which excites the piezoelectric element to drive the matching mechanical element to generate resonance, and transmits it to the detection probe. When the material to be tested is covered by the vibrating detection probe, the vibration amplitude is drastically reduced due to the damping effect of the material. Through the detection recei...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01F23/00
CPCG01F23/00
Inventor 黄河振盛井德陈之聪林强增
Owner 深圳计为自动化技术有限公司