CN209977111U - Alarm device of brake clearance automatic adjustment arm - Google Patents
Alarm device of brake clearance automatic adjustment arm Download PDFInfo
- Publication number
- CN209977111U CN209977111U CN201920411688.0U CN201920411688U CN209977111U CN 209977111 U CN209977111 U CN 209977111U CN 201920411688 U CN201920411688 U CN 201920411688U CN 209977111 U CN209977111 U CN 209977111U
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- arc groove
- micro
- alarm device
- gap switch
- circular arc
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- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
The utility model relates to an alarm device of brake clearance automatic adjustment arm, including automatic adjustment arm and alarm device, first circular arc groove and second circular arc groove have been seted up on the outer peripheral surface of the worm axle journal that automatic adjustment arm has, and first circular arc groove and second circular arc groove are located same circumference, set up a through-hole on the casing that automatic adjustment arm has, the through-hole with first circular arc groove corresponds and with the axial lead, and alarm device includes singlechip, micro-gap switch and audible and visual alarm device, and micro-gap switch is the micro-gap switch of gyro wheel plunger type, and the one end rotatable coupling of the plunger that micro-gap switch has the gyro wheel. The utility model discloses simple structure, practicality, can in time remind the driver in time to change the brake shoe after the effective braking friction thickness wearing and tearing of car brake shoe, effectual protection braking system, micro-gap switch and single chip microcomputer electricity are connected, carry out real time monitoring to the brake shoe, have ensured driving safety.
Description
Technical Field
The utility model belongs to the technical field of the car, concretely relates to alarm device of braking clearance automatic adjustment arm.
Background
The automatic brake clearance adjusting arm is a self-adjusting arm of a wheel brake of a US fighter plane before 50 years, has good effect of guaranteeing the safety of braking, is transplanted to a large and medium-sized passenger car and a light, medium and heavy truck, and is suitable for the automatic brake clearance adjusting arm of motor vehicles such as an automobile tractor and the like, the automatic brake clearance adjusting arm of an aircraft brake and other mechanical maples.
In the braking process of automobile driving, because of wearing and tearing reason, the clearance of its brake drum and brake shoe is constantly increasing, causes the brake sensitivity to reduce, if the same axle two-wheeled brake clearance is different, will make the brake force of two-wheeled inhomogeneous, can produce during the automobile braking run over, the tail-swaying phenomenon, influences driving safety. To solve the secondary problem, many people have designed various automatic adjusting devices. The adjusting devices have the function that after an automobile brake shoe friction plate is worn, the amplified shoe drum gap can be automatically compensated in an equivalent manner, so that an automobile often has good braking performance, the compensation is continuously carried out along with the continuous wear of the friction plate until the friction plate is completely damaged, the compensation cannot be stopped, the automobile brake shoe friction plate is only found to be required to be replaced during manual inspection, and if the automobile brake shoe friction plate is not found to be timely, the brake system is damaged.
Disclosure of Invention
In view of this, the utility model aims at providing a brake clearance automatic adjustment arm's alarm device, aims at solving the brake shoe and can not in time remind the defect that the driver changed after wearing and tearing.
In order to achieve the purpose, the technical scheme is as follows:
an alarm device of an automatic brake clearance adjusting arm comprises an automatic adjusting arm and an alarm device, wherein a first arc groove and a second arc groove are formed in the outer circumferential surface of a worm shaft neck of the automatic adjusting arm, the first arc groove and the second arc groove are located on the same circumference, a through hole is formed in a shell of the automatic adjusting arm, the through hole corresponds to the first arc groove and has the same axial lead, the alarm device comprises a single chip microcomputer, a microswitch and an acousto-optic alarm device, the microswitch is a roller plunger type microswitch, one end of a plunger of the microswitch is rotatably connected with a roller, a plunger of the microswitch is arranged in the through hole, the roller of the microswitch falls into the first arc groove corresponding to the through hole, the microswitch is connected with the single chip microcomputer, and the single chip microcomputer is connected with the acousto-optic alarm device, and the single chip microcomputer, the sound and light alarm device and the microswitch form a loop, and the single chip microcomputer, the sound and light alarm device and the microswitch are powered by a vehicle-mounted power supply.
Furthermore, the first arc groove and the second arc groove are connected with the outer circumferential surface of the worm shaft neck where the first arc groove and the second arc groove are located through a transition arc.
Further, the plunger end of the microswitch is arranged in the through hole through threaded connection.
Furthermore, the audible and visual alarm is arranged in the automobile cab.
Further, the single chip microcomputer is arranged in the automobile cab.
The utility model has the advantages that: the utility model discloses simple structure, practicality, can in time remind the driver in time to change the brake shoe after the effective braking friction thickness wearing and tearing of car brake shoe, effectual protection braking system, when the brake shoe wearing and tearing need change, the gyro wheel of micro-gap switch plunger end falls into second circular arc inslot, switch-on warning circuit. The microswitch is electrically connected with the single chip microcomputer to monitor the brake shoe in real time, so that the driving safety is ensured.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. In the drawings:
fig. 1 is a schematic structural view of the present invention;
fig. 2 is an enlarged schematic view of a in fig. 1.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
As shown in fig. 1-2, an alarm device for an automatic brake clearance adjusting arm includes an automatic adjusting arm 1 and an alarm device (not shown in the figure), a first arc groove 3 and a second arc groove 4 are provided on an outer circumferential surface of a shaft neck of a worm 11 provided in the automatic adjusting arm 1, the first arc groove 3 and the second arc groove 4 are located on the same circumference, a through hole 5 is provided on a housing 2 provided in the automatic adjusting arm 1, and the through hole 5 corresponds to the first arc groove 3 and has the same axial lead.
As shown in fig. 1-2, the alarm device (not shown in the figures) includes a single chip microcomputer (not shown in the figures), a micro switch 21 and an acousto-optic alarm (not shown in the figures), the acousto-optic alarm (not shown in the figures) is arranged in an automobile cab, the single chip microcomputer (not shown in the figures) is arranged in the automobile cab, the micro switch 21 is a roller 221 plunger type micro switch 21, one end of a plunger of the micro switch 21 is rotatably connected with a roller 211, a plunger of the micro switch 21 is arranged in the through hole 5, a plunger end of the micro switch 21 is arranged in the through hole 5 through threaded connection, the roller 211 of the micro switch 21 falls into the first arc groove 3 corresponding to the through hole 5, the micro switch 21 is connected with the single chip microcomputer, and the single chip microcomputer (not shown in the figures) is connected with the acousto-optic alarm (not shown in the figures), and the single chip microcomputer, the audible and visual alarm (not shown in the figure) and the microswitch 21 form a loop, and the single chip microcomputer (not shown in the figure), the audible and visual alarm (not shown in the figure) and the microswitch 21 are powered by a vehicle-mounted power supply.
As shown in fig. 1-2, an included angle formed by the centers of the first arc groove 3 and the second arc groove 4 to the axis of the worm wheel 11 corresponds to the effective wear thickness of the brake shoe, and the first arc groove 3 and the second arc groove 4 are connected with the outer circumferential surface of the shaft neck of the worm 11 where the first arc groove and the second arc groove are located through a transition arc.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. The utility model provides a brake clearance automatic adjustment arm's alarm device, includes automatic adjustment arm and alarm device, its characterized in that:
a first arc groove and a second arc groove are formed in the outer circumferential surface of a worm shaft neck of the automatic adjusting arm, the first arc groove and the second arc groove are located on the same circumference, a through hole is formed in a shell of the automatic adjusting arm, and the through hole corresponds to the first arc groove and has the same axial lead as the first arc groove;
alarm device includes singlechip, micro-gap switch and audible and visual alarm device, micro-gap switch is the micro-gap switch of gyro wheel plunger type, the one end swivelling joint of the plunger that micro-gap switch has the gyro wheel, the plunger setting that micro-gap switch has is in the through-hole, and the gyro wheel that micro-gap switch has fall with the first circular arc inslot that the through-hole corresponds, micro-gap switch is connected with the singlechip, the singlechip with audible and visual alarm device connects, just singlechip, audible and visual alarm device and micro-gap switch form the return circuit, singlechip, audible and visual alarm device and micro-gap switch are supplied power by vehicle mounted power source.
2. The warning device as claimed in claim 1, wherein the micro switch has a plunger end disposed in the through hole by a screw connection.
3. The warning device of an automatic brake gap adjusting arm according to claim 1, wherein the first circular arc groove and the second circular arc groove are connected with the outer circumferential surface of the worm journal on which the first circular arc groove and the second circular arc groove are arranged through a transition arc.
4. The warning device of an automatic brake clearance adjusting arm according to claim 1, wherein the audible and visual warning device is disposed in a cab of a vehicle.
5. The warning device of an automatic brake clearance adjusting arm according to claim 1, wherein the single chip microcomputer is arranged in a cab of the automobile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920411688.0U CN209977111U (en) | 2019-03-28 | 2019-03-28 | Alarm device of brake clearance automatic adjustment arm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920411688.0U CN209977111U (en) | 2019-03-28 | 2019-03-28 | Alarm device of brake clearance automatic adjustment arm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209977111U true CN209977111U (en) | 2020-01-21 |
Family
ID=69255969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920411688.0U Expired - Fee Related CN209977111U (en) | 2019-03-28 | 2019-03-28 | Alarm device of brake clearance automatic adjustment arm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209977111U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109798309A (en) * | 2019-03-28 | 2019-05-24 | 山西峰润众盛汽车配件制造有限公司 | A kind of warning device of arm for automatically regulating clearance of brake |
-
2019
- 2019-03-28 CN CN201920411688.0U patent/CN209977111U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109798309A (en) * | 2019-03-28 | 2019-05-24 | 山西峰润众盛汽车配件制造有限公司 | A kind of warning device of arm for automatically regulating clearance of brake |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200121 |
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| CF01 | Termination of patent right due to non-payment of annual fee |