CN213870860U

CN213870860U - Automobile brake pad wear sensor

Info

Publication number: CN213870860U
Application number: CN202022888877.2U
Authority: CN
Inventors: 周富志
Original assignee: Laohekou Jinbo Auto Parts Co ltd
Current assignee: Laohekou Jinbo Auto Parts Co ltd
Priority date: 2020-12-04
Filing date: 2020-12-04
Publication date: 2021-08-03
Anticipated expiration: 2030-12-04

Abstract

The utility model discloses an automobile brake pad wear sensor relates to brake block technical field, can only report to the police the suggestion when wearing and tearing appear in the friction disc for solving current automobile brake pad sensor among the prior art, but can't further master the problem of the wearing and tearing condition of current friction disc. The sensor main end is provided with the composite mounting groove all around, the sensor main end be provided with the front end detection shaft, the bottom of front end detection shaft is provided with the switching sleeve, and switching sleeve and front end detection shaft fixed connection, the switching sleeve passes through the draw-in groove with the sensor main end and is connected, the top of front end detection shaft is provided with the locking snap ring, and the outside of locking snap ring is provided with fixing bolt, fixing bolt rotates with the locking snap ring to be connected, and fixing bolt extends to the inside of front end detection shaft, the top of locking snap ring is provided with the wearing and tearing end, and wearing and tearing end and locking snap ring and fixed connection.

Description

Automobile brake pad wear sensor

Technical Field

The utility model relates to a brake block technical field specifically is an automobile brake block wear sensor.

Background

An automobile brake pad, also called an automobile brake shoe, refers to a friction material fixed on a brake drum or a brake disc rotating with a wheel, wherein a friction lining and a friction pad bear external pressure to generate friction action so as to achieve the purpose of vehicle deceleration. The friction block is composed of friction material and adhesive, and is pressed on a brake disc or a brake drum to generate friction when braking, so that the purposes of vehicle deceleration and braking are achieved. The pads are gradually worn away due to friction, generally speaking, the lower the cost the faster the brake pad will wear. The brake block is replaced in time after the friction material is used up, otherwise, the steel plate and the brake disc can be in direct contact, and finally the brake effect can be lost and the brake disc can be damaged.

However, the existing automobile brake pad sensor can only give an alarm when the friction plate is worn, but cannot further master the wear condition of the current friction plate; therefore, the existing requirements are not met, and an automobile brake pad wear sensor is provided for the requirement.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a car brake block wear sensor to current car brake block sensor who proposes in solving above-mentioned background art can only report to the police when wearing and tearing appear in the friction disc and indicate, but can't further master the problem of the wearing and tearing condition of current friction disc.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an automobile brake pad wear sensor, includes the sensor main head, be provided with the combination mounting groove around the sensor main head, the sensor main head be provided with the front end detection axle, the bottom of front end detection axle is provided with the switching sleeve, and switching sleeve and front end detection axle fixed connection, the switching sleeve passes through the draw-in groove with the sensor main head and is connected, the top of front end detection axle is provided with the locking snap ring, and the outside of locking snap ring is provided with fixing bolt, fixing bolt rotates with the locking snap ring to be connected, and fixing bolt extends to the inside of front end detection axle, the top of locking snap ring is provided with the wearing and tearing end, and wearing and tearing end and locking snap ring and fixed connection.

Preferably, the top of the front end detection shaft is provided with an extension inner connection end, the extension inner connection end is fixedly connected with the front end detection shaft, and the extension inner connection end is connected with the locking snap ring through a sealing sleeve groove.

Preferably, the top of the extension inscribing end head is provided with a resistance value induction notch, and one side of the resistance value induction notch is provided with a current conduction notch.

Preferably, the inside of current conduction notch and resistance response notch all is provided with the metal response piece, and metal response piece and sensor main end electric connection.

Preferably, the wear end is a semicircular structure, a core grinding resistor is arranged inside the wear end, and the core grinding resistor penetrates through the surface of the wear end and extends to the surface of the wear end.

Preferably, a current output end block is arranged on one side of the bottom of the core grinding resistor, a current input end block is arranged on the other side of the bottom of the core grinding resistor, and the current output end block and the current input end block are connected with the core grinding resistor in an attaching mode.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a wearing and tearing end sets up to semi-circular structure, in the beginning of the contact like this, the wearing and tearing end can not cause the resistance influence to the brake disc, because the wearing and tearing end is at the in-process with the brake disc contact, its area of contact is by the point to face crescent, and when wearing and tearing end and brake disc contact produced the friction, inside abrasive core resistance will be because of continuous shortening of friction, and the electric current is from current input end block entering into the inside of abrasive core resistance, then through the abrasive core resistance after by current output end block input to the resistance response notch, the length of abrasive core resistance is short more, the electric current of current output end block input is also big more, alright like this alright carry out the wearing and tearing of friction disc and warn and the judgement of the wearing and tearing condition through the electric current size of resistance response notch department feedback.

Drawings

FIG. 1 is an overall front view of the present invention;

FIG. 2 is a schematic view of the front end detecting shaft structure of the present invention;

fig. 3 is a schematic view of the sectional structure of the wear end of the present invention.

In the figure: 1. a sensor main end; 2. a transfer sleeve shaft; 3. a front end detection shaft; 4. locking the snap ring; 5. Wearing the end head; 6. extending the inscribed end; 7. a resistance value sensing notch; 8. a metal induction sheet; 9. a current conducting slot; 10. fixing the bolt; 11. grinding a core resistor; 12. sealing the sleeve groove; 13. a current output end block; 14. a current input end block; 15. and assembling the mounting groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, the present invention provides an embodiment: an automobile brake pad abrasion sensor comprises a sensor main end 1, wherein a combined installation groove 15 is formed around the sensor main end 1, the sensor main end 1 can be installed and fixed on a brake structure through the combined installation groove 15, a front end detection shaft 3 is arranged on the sensor main end 1 and is responsible for detecting a friction plate, a switching sleeve shaft 2 is arranged at the bottom of the front end detection shaft 3, the switching sleeve shaft 2 is fixedly connected with the front end detection shaft 3, the switching sleeve shaft 2 is connected with the sensor main end 1 through a clamping groove, a locking snap ring 4 is arranged above the front end detection shaft 3, a fixing bolt 10 is arranged on the outer side of the locking snap ring 4 and is used for preventing an abrasion end head 5 from falling off in the detection process, the fixing bolt 10 is rotatably connected with the locking snap ring 4, the fixing bolt 10 extends into the front end detection shaft 3, the abrasion end head 5 is arranged above the locking snap ring 4, and the abrasion end head 5 and the locking snap ring 4 are fixedly connected.

Further, the top of the front end detection shaft 3 is provided with an extension inner connection end 6, the extension inner connection end 6 is fixedly connected with the front end detection shaft 3, and the extension inner connection end 6 is connected with the locking snap ring 4 through a sealing sleeve groove 12.

Furthermore, the top of the extension inner-connected terminal 6 is provided with a resistance value sensing notch 7, the resistance value sensing notch 7 and the current output end block 13 are combined with each other, one side of the resistance value sensing notch 7 is provided with a current conduction notch 9, and the current conduction notch 9 and the current input end block 14 are combined with each other.

Further, the inside of current conduction notch 9 and resistance response notch 7 all is provided with metal induction piece 8, and metal induction piece 8 and sensor owner end 1 electric connection, and metal induction piece 8 can realize the transmission function of electric current and data through the mode of contact.

Further, wearing and tearing end 5 sets up to semi-circular structure, and the structural design of cylindrical structure can reduce the influence of wearing and tearing end 5 to the brake disc to the at utmost, because wearing and tearing end 5 at the in-process with the brake disc contact, its area of contact is by the face crescent of point to face, and at the beginning of the contact like this, wearing and tearing end 5 can not cause the resistance influence to the brake disc, and the inside of wearing and tearing end 5 is provided with abrasive core resistance 11, and abrasive core resistance 11 runs through the surface that extends to wearing and tearing end 5.

Further, a current output end block 13 is arranged on one side of the bottom of the grinding core resistor 11, a current input end block 14 is arranged on the other side of the bottom of the grinding core resistor 11, the current output end block 13 and the current input end block 14 are connected with the grinding core resistor 11 in an attaching mode, when the abrasion end 5 is in contact with a brake disc to generate friction, the internal grinding core resistor 11 is continuously shortened due to the friction, current enters the grinding core resistor 11 from the current input end block 14, then the current passes through the grinding core resistor 11 and is input into the resistance value induction notch 7 through the current output end block 13, and the shorter the length of the grinding core resistor 11 is, the larger the current input by the current output end block 13 is.

The working principle is as follows: when the abrasion end 5 is contacted with a brake disc to generate friction, the inner core grinding resistor 11 is continuously shortened due to the friction, the current enters the inner part of the core grinding resistor 11 from the current input end block 14, and then is input into the resistance value induction notch 7 through the current output end block 13 after passing through the core grinding resistor 11, the shorter the length of the core grinding resistor 11, the larger the current input by the current output end block 13.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides an automobile brake block wear sensor, includes sensor main end (1), its characterized in that: be provided with combination mounting groove (15) all around of sensor main end (1), being provided with of sensor main end (1) front end detection axle (3), the bottom that front end detection axle (3) was provided with switching sleeve (2), and switching sleeve (2) and front end detection axle (3) fixed connection, switching sleeve (2) are connected through the draw-in groove with sensor main end (1), the top that front end detection axle (3) was provided with locking snap ring (4), and the outside of locking snap ring (4) is provided with fixing bolt (10), fixing bolt (10) are connected with locking snap ring (4) rotation, and fixing bolt (10) extend to the inside that front end detection axle (3) were examined, the top of locking snap ring (4) is provided with wearing and tearing end (5).

2. The automotive brake pad wear sensor of claim 1, wherein: the top of front end detection shaft (3) is provided with extension inscription end (6), and extends inscription end (6) and front end detection shaft (3) fixed connection, extension inscription end (6) are connected with locking snap ring (4) through sealed cover groove (12).

3. The automotive brake pad wear sensor of claim 2, wherein: the top of the extension inner-connected terminal (6) is provided with a resistance value induction notch (7), and one side of the resistance value induction notch (7) is provided with a current conduction notch (9).

4. The automotive brake pad wear sensor of claim 3, wherein: the inside of current conduction notch (9) and resistance response notch (7) all is provided with metal response piece (8), and metal response piece (8) and sensor owner end (1) electric connection.

5. The automotive brake pad wear sensor of claim 1, wherein: the abrasion end head (5) is of a semicircular structure, a core grinding resistor (11) is arranged inside the abrasion end head (5), and the core grinding resistor (11) penetrates through the surface extending to the abrasion end head (5).

6. The automotive brake pad wear sensor of claim 5, wherein: and a current output end block (13) is arranged on one side of the bottom of the core grinding resistor (11), a current input end block (14) is arranged on the other side of the bottom of the core grinding resistor (11), and the current output end block (13) and the current input end block (14) are connected with the core grinding resistor (11) in an attaching mode.