Brake shoe abrasion limit-reaching automatic alarm device
An automatic alarm device and brake shoe technology, applied in the direction of brake types, mechanical equipment, etc., can solve problems such as incomplete wear, errors, and heavy detection workload, and achieve rapid and efficient detection, high equipment reliability, and improved efficiency. Effect
Active Publication Date: 2022-05-06
TAIZHOU POLYTECHNIC COLLEGE +1
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Problems solved by technology
[0005] The brake shoes are installed on rail vehicles. After a long-term braking process, the brake shoes wear normally. When the wear reaches the limit, the brake shoes must be replaced in time to avoid affecting the braking safety. The brake shoe support is affected by external factors such as gravity, and the wear is not completely uniform. There are certain errors in conventional manual measurement, and the detection workload is large
[0006] Therefore, the technical problem to be solved by the present invention is: how to provide a brake that can still detect the wear of the brake shoes of the rail vehicle quickly and efficiently and realize reliable operation under the condition of no power supply and low reliability of online power-on real-time detection. Shoe, and brake shoe wear limit fast detection and alarm device
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[0040] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.
[0041] In the description of the present invention, it should be understood that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right" etc. are based on the attached The orientation or positional relationship shown in the figure is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the referred combination or element must have a specific orientation, be constructed and operated in a spec...
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The invention discloses a brake shoe abrasion limit-reaching automatic alarm device which comprises an airtight detector which is arranged on the outer side of the back face of a brake shoe abrasion-resistant layer and provided with an airtight cavity and at least one detection protruding part protruding towards the abrasion-resistant layer. The buzzing alarm valve comprises a valve body, a main valve cavity arranged in the valve body, and an air inlet valve cavity, a buzzing valve cavity and a brake shoe air connecting valve cavity which are respectively connected with the main valve cavity; the main valve cavity is provided with a valve element close to the end, connected with the air valve cavity, of the brake shoe, a spring arranged on the top of the valve element and a valve deck pressing the spring. The air inlet valve cavity comprises a brake shoe air inlet valve cavity and a valve element air inlet cavity, and meanwhile a throttling bolt is arranged in the brake shoe air inlet valve cavity. The buzzing valve cavity is communicated with a buzzer and triggers the buzzer to work and give an alarm when air is supplied into the buzzing valve cavity. According to the brake shoe abrasion limit-reaching automatic alarm device, maintenance personnel can conveniently, rapidly and efficiently detect the brake shoe of a railway vehicle, mechanical automatic alarm is achieved, reliability is high, and the operation cost is low.
Description
technical field [0001] The invention relates to the technical field, in particular to an automatic alarm device for brake shoe wear limit. Background technique [0002] The tread braking unit of the rail vehicle uses the brake shoes to rub against the wheel tread, and energy conversion is performed when the contact is made, and finally the vehicle is braked to stop. When the rail vehicle brakes, the arc-shaped block-shaped brake shoe presses the wheel tread. When the wheel rubs against the brake shoe, the surface of the brake shoe will be worn. When the brake shoe wears to the specified limit, it needs to be replaced. [0003] At present, the inspection of brake shoe wear status is carried out manually according to the limit mark of brake shoe wear. Due to the poor environment under the vehicle, the error of visual inspection is relatively large, and the vehicle tread has a certain curvature, resulting in uneven wear of brake shoes. Check, if the replacement is not timely, ...
Claims
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IPC IPC(8): F16D66/02
CPCF16D66/022
Inventor 洪明虎李曙生王珍记林肃峰
Owner TAIZHOU POLYTECHNIC COLLEGE