Drum-type heavy sheet abrasion monitoring sensor, alarming system and drum-type heavy sheet abrasion monitoring method

A technology for monitoring alarms and sensors, applied in the field of auto parts, can solve problems such as hidden safety hazards, real-time wear and tear, and the wear and tear to the limit state should not be found, brake failure, etc., to achieve the effect of reducing waste, simple structure, and not easy to wear

Active Publication Date: 2019-11-19
JINAN GOLD PHOENIX BRAKE SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In view of the shortcomings of the prior art described above, the object of the present invention is to provide a drum-type heavy-duty disc wear monitoring sensor and its alarm system, which detects the wear condition of the friction material by installing a

Method used

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  • Drum-type heavy sheet abrasion monitoring sensor, alarming system and drum-type heavy sheet abrasion monitoring method
  • Drum-type heavy sheet abrasion monitoring sensor, alarming system and drum-type heavy sheet abrasion monitoring method
  • Drum-type heavy sheet abrasion monitoring sensor, alarming system and drum-type heavy sheet abrasion monitoring method

Examples

Experimental program
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Example Embodiment

[0044] Example 1

[0045] This embodiment discloses a drum type heavy piece wear monitoring sensor, such as figure 1 As shown, it includes an inner shell 11, an outer shell 12, and a rotating disk 13. The inner shell 11 and the outer shell 12 are snap-fit ​​structures, but not limited to snap-fit, and can also be screwed or bolted; there is a connection between the inner shell 11 and the outer shell 12. A cavity for placing the rotating disk, used for placing the rotating disk; the inner shell 11 is equipped with two metal contacts 111, 111' and two terminals 112, 112', the metal contacts are connected to the terminal, and the terminal is connected to the counting sensor 3; The rotating disc 13 in the wear sensor 1 is fixedly connected to the camshaft 5. In this embodiment, the rotating disc 13 is meshed on the camshaft 5 by gears. In other embodiments, other fixed connection methods can also be used; and To achieve the meshing connection, the inner shell 11, the outer shell 12 a...

Example Embodiment

[0050] Example 2

[0051] This embodiment discloses a drum type heavy piece wear monitoring and alarm system, such as Figure 8 As shown, the wear sensor 1 and the alarm device 4 described in Embodiment 1 are included; the counting sensor 3 is connected with the alarm device 4; preferably, the counting sensor 3 is also provided with a counting display device.

[0052] According to the limit rotation angle of S camshaft 5, calculate and set the count peak value K;

[0053] Counting peak value K=S camshaft limit rotation β angle / S camshaft single rotation α angle.

[0054] Such as Figure 5 As shown, the number on the counting sensor plus one represents the rotation α angle of the S camshaft 5, where α=360 / n; n represents the number of teeth of the metal sheet, the larger n represents the smaller the rotation α angle of the S camshaft 5, which means The more accurate the wear sensor 1 is; the number of teeth on the metal ring is preferably 100-150; in this embodiment, it is more prefer...

Example Embodiment

[0057] Example 3

[0058] This embodiment discloses a method for monitoring the wear of a drum-type heavy-duty piece, wherein this embodiment adopts the wear sensor and the alarm system described in Embodiment 1 and Embodiment 2; the steps include:

[0059] (1) Obtain the limit angle β according to the limit value of the camshaft rotation angle;

[0060] (2) Set the number n of metal ring teeth on the wear sensor; calculate the angle between adjacent teeth α=360° / n;

[0061] (3) Calculate the count peak value K, the calculation formula is: K=β / α;

[0062] (4) Preset counting alarm value K’, where K’≤K;

[0063] (5) When the count value of the counting sensor reaches the preset value K', the counting sensor transmits the signal to the alarm device and alarms.

[0064] Preferably, the value of K'can be set to multiple values ​​less than or equal to K, and when the preset value K'is reached, a digital alarm will be issued, which is helpful for the driver to monitor the wear of the brake pads...

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Abstract

The invention discloses a drum-type heavy sheet abrasion monitoring sensor, an alarming system and a drum-type heavy sheet abrasion monitoring method. The abrasion monitoring sensor comprises a rotating disc, an inner shell and an outer shell. The inner shell and the outer shell are fixedly connected, and a cavity for containing the rotating disc is formed between the inner shell and the outer shell. The rotating disc is fixed to a cam shaft of a brake and rotates synchronously along with the cam shaft. A metal ring piece is fixedly arranged on the rotating disc and comprises a metal ring anda plurality of metal teeth distributed on the metal ring. A first metal contact and a second metal contact are installed on the inner shell. The first metal contact is correspondingly in contact withthe metal ring, the second metal contact corresponds to the metal teeth and is in contact with the corresponding metal tooth now and then and not in contact with the metal teeth now and then accordingto different rotating positions of the metal ring piece. The metal contacts are connected with a counting sensor. According to the drum-type heavy sheet abrasion monitoring sensor, the alarming system and the drum-type heavy sheet abrasion monitoring method, the structure is simple, and cost is low; and through the contact type counting of the two metal contacts, the influence of the external world on signal transmission is low, the requirement on the performance of materials is low, and the abrasion condition of a brake pad can be monitored in real time.

Description

technical field [0001] The invention belongs to the field of auto parts, and in particular relates to a drum-type heavy sheet wear monitoring sensor, an alarm system and a wear monitoring method thereof. Background technique [0002] The friction plate is an important part of the vehicle braking system, and it is also the part that wears the fastest during the use of the vehicle. During the braking process, the vehicle uses the friction plate to force the vehicle to slow down and stop, so the friction plate will become thinner and thinner. When the wear reaches a certain limit, it must be replaced, otherwise it will bring hidden dangers to driving and endanger the safety of drivers and passengers. [0003] At present, drum brakes are widely used in domestic passenger cars and commercial vehicles because of their simple production and assembly and low cost, especially for heavy-duty brakes. However, the current drum brakes generally do not have a device for monitoring the we...

Claims

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Application Information

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IPC IPC(8): F16D66/02B60T17/22
CPCB60T17/22F16D66/024
Inventor 苑绍栋李鹏飞
Owner JINAN GOLD PHOENIX BRAKE SYST
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