Lining abrasion alarm device for semitrailer drum brake
A drum brake and alarm device technology, applied in the direction of brake type, mechanical equipment, etc., can solve problems such as brake hub damage, achieve strong operability, solve untimely replacement, and strong applicability.
Inactive Publication Date: 2020-03-17
镇江神行太保科技有限公司
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Problems solved by technology
[0005] The existing alarm device is mainly to fix an alarm sheet on the brake lining along the thickness direction of the friction pad. Alert drivers and passengers to replace brake pads, but this alarm device will cause greater damage to the brake hub, and even if there is a sound of metal friction, due to the influence of external noise, drivers and passengers sitting in the cab may not be able to cause alertness
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[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0034] see Figure 1-6 , an embodiment provided by the present invention:
[0035] A lining wear alarm device for a drum brake of a semi-trailer, comprising a warning light assembly 1, a brake shoe 2 and a wear sensor 8 arranged on the brake shoe 2;
[0036] The alarm light assembly 1 includes an LED light 101 , and a control switch 102 is connected to the LED light 101 . The control switch 102 is a normally closed relay connected to a normal po...
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The invention discloses a lining abrasion alarm device for a semitrailer drum brake, which comprises an alarm lamp assembly, a brake shoe and an abrasion sensor arranged on the brake shoe. The alarm lamp assembly comprises an LED lamp, the LED lamp is internally connected with a control switch, the control switch is a normally-closed relay, the normally-closed relay is connected with a normally-electric interface and an external control interface, the LED lamp is on when the external control interface is disconnected, and the LED lamp is off when the external control interface is connected; the normally-electric interface is connected with an electricity taking wire, the electricity taking wire is connected with a power source, the external control interface is connected with a control connecting wire, the control connecting wire is connected with four or six sensor connecting wires, the sensor connecting wires are connected in series and connected with the abrasion sensor, the brake shoe is connected with a brake pad, and the abrasion sensor is detachably connected with the brake shoe and the brake pad. Through the arrangement, the application of the alarm device can improve the driving safety of the vehicle, an alarm is given timely to prompt the replacement of the brake lining, the difficulty of manual management is reduced, and the driving of the vehicle is thus safer.
Description
technical field [0001] The invention relates to the field of auto parts, in particular to a lining wear alarm device for a semi-trailer drum brake. Background technique [0002] Drum brakes are also called block brakes, and brakes are achieved by pressing the brake pads on the brake wheels. Drum brakes are an early design of the braking system. The design of the brake drum has been used on horse-drawn carriages in 1902, and it was not widely used in the automobile industry until around 1920. The mainstream of drum brakes is the internal tension type. Its brake block (brake shoe) is located on the inner side of the brake wheel. When braking, the brake block opens outwards and rubs against the inner side of the brake wheel to achieve the purpose of braking. [0003] With the development of the automobile industry, the performance of automobiles is getting better and better, and the safety and stability of the braking system are getting more and more attention from designers a...
Claims
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IPC IPC(8): F16D66/02
CPCF16D66/02F16D66/027
Inventor 吴志宏孙亮雷宜专
Owner 镇江神行太保科技有限公司