CN114537362B

CN114537362B - Trailer brake block brake lining wear monitoring alarm device

Info

Publication number: CN114537362B
Application number: CN202210447298.5A
Authority: CN
Inventors: 陈益; 张文刚; 张子杰; 郑世永
Original assignee: Ningbo Heli Brake Systems Co ltd
Current assignee: Ningbo Heli Brake Systems Co ltd
Priority date: 2022-04-27
Filing date: 2022-04-27
Publication date: 2022-07-19
Anticipated expiration: 2042-04-27
Also published as: CN114537362A

Abstract

The invention discloses a trailer brake pad brake lining wear monitoring and alarming device which comprises a monitoring and alarming mechanism matched with a brake pad assembly, wherein the monitoring and alarming mechanism comprises a translation mechanism, a lifting block and a shell, a translation block capable of moving horizontally is arranged on the translation mechanism, the lifting mechanism is arranged on the translation block, a first suction block capable of lifting is arranged on the lifting mechanism, a second suction block capable of being sucked with the first suction block is arranged on the lifting block, a touch block is elastically connected to the lifting block, a contact is arranged on the touch block, an alarming switch is arranged on the inner side of the shell at the position corresponding to the contact, an infrared sensor is arranged on the translation block, an infrared avoiding hole is formed in the lifting block, the brake pad assembly comprises a base plate, a lining and a brake pad which are sequentially arranged, and a groove matched with the touch block is formed in the lining. The advantages are that: it is rational in infrastructure, can indicate brake block wearing and tearing to carry out lasting warning suggestion under the condition that wearing and tearing reach to need to change.

Description

Trailer brake block brake lining wear monitoring alarm device

Technical Field

The invention relates to the technical field of automobile part wear monitoring, in particular to a trailer brake pad brake lining wear monitoring and alarming device.

Background

The brake pad is a brake pad assembly formed by riveting a brake lining and a friction plate, and the brake lining is an auxiliary accessory matched with the friction plate. When braking, the brake block is pressed on the brake disc or the brake drum to generate friction, so as to achieve the aim of decelerating and braking the vehicle, and the brake block is gradually worn due to the friction action, generally, the lower the cost, the faster the brake block is worn. The braking performance of a vehicle is directly related to driving safety, and thus, it is very important to periodically check and replace the brake pads.

The existing air pressure disc brake can not know the abrasion conditions of two brake blocks in time in the use process, namely whether the abrasion conditions reach the maximum abrasion loss or not, so that the brake performance is influenced after the brake blocks are seriously abraded, and the brake failure can be caused under the serious condition. The trailer has a large load, and the requirement of the trailer on the braking performance is higher, so that a trailer brake pad abrasion monitoring and alarming device is needed.

Disclosure of Invention

The invention aims to make up the defects and discloses a trailer brake pad lining wear monitoring alarm device with a reasonable structure to the society, which can prompt the brake pad to be worn and can continuously give an alarm when the brake pad is worn to be replaced.

The technical scheme of the invention is realized as follows:

the utility model provides a trailer brake block stopper facing wearing and tearing monitoring alarm device, including with brake block subassembly matched with monitoring alarm mechanism, monitoring alarm mechanism including translation mechanism, elevating system, elevator and shell, translation mechanism on be provided with the translation piece that can horizontal migration, the translation piece on be provided with elevating system, elevating system on be provided with the first piece that draws that can go up and down, the elevator on be provided with can with the second that first draws the piece looks actuation draws the piece, the elevator on elastic connection have a touch piece, the touch piece on be provided with the contact, the shell inboard correspond the contact position is provided with alarm switch, the translation piece on be provided with infrared sensor, the elevator on set up the infrared hole of dodging, brake block subassembly including the bottom plate that sets gradually, The brake pad comprises a lining and a brake pad, wherein the lining is provided with a groove matched with a touch block.

The measures for further optimizing the technical scheme are as follows:

as an improvement, the specific structure that the translation block can move horizontally is as follows: the translation mechanism comprises a translation driving device, a screw rod horizontally arranged is connected to the translation driving device, a translation block is in threaded connection with the screw rod, and a limiting structure for limiting the rotation of the translation block is arranged between the translation block and the shell. The translation driving device drives the screw rod to rotate, and the limiting structure is used for limiting the translation block to rotate so as to drive the translation block on the screw rod to translate.

As an improvement, the back of the translation block is provided with a limiting block, the shell is provided with a horizontal limiting groove, and the limiting block is movably arranged in the horizontal limiting groove. The rotation of the translation block is limited by the matching of the limiting block and the horizontal limiting groove, so that the translation block can only move along the direction of the horizontal limiting groove.

As an improvement, the specific structure that the first suction block can lift is as follows: the lifting mechanism comprises a lifting driving device and a lifting rod, the lifting driving device is fixed on the translation block, the lifting driving device is connected with a turntable, a driving column is arranged on the outer edge of the turntable, a driving groove matched with the driving column is formed in the lifting rod, and the first suction block is fixed on the lifting rod. The lifting driving device drives the rotary table to rotate, and the lifting rod is lifted through the matching of the driving column on the rotary table and the driving groove on the lifting rod.

As an improvement, the upper side and the lower side of the turntable are respectively provided with a guide block matched with the lifting rod. The guide block can prevent the lifting rod from swinging, so that the lifting rod is ensured to move along the vertical direction.

As an improvement, the driving groove is of an arc-shaped structure. The driving groove is designed into an arc structure according to the motion track of the driving column.

As an improvement, the back of the lifting block is provided with a guide post, the shell is provided with a lifting limiting groove, and the guide post can be movably arranged in the lifting limiting groove. Through the cooperation of guide post and lift spacing groove, guarantee that the elevator moves along the vertical direction.

As an improvement, the bottom of the translation block is horizontally provided with a mounting plate, and the infrared sensor is mounted on the bottom surface of the mounting plate.

As an improvement, a spring is arranged between the lifting block and the touch block. The elastic connection between the touch block and the lifting block is realized by utilizing the spring, and the structure is simple.

As an improvement, the two sides of the bottom plate are respectively provided with an assembling groove, the shell is provided with an installing column matched with the assembling groove, and the assembling grooves are clamped and matched on the corresponding installing columns. The installation of brake block subassembly is made things convenient for in the setting of erection column.

Compared with the prior art, the invention has the advantages that:

the brake lining wear monitoring and alarming device for the brake of the trailer brake block is reasonable in structure, the brake block assembly comprises a bottom plate, a lining and a brake block which are sequentially arranged, when the brake block is worn, the brake disc can touch a touch block, and a contact is enabled to touch an alarm switch to trigger alarm to prompt the brake block to be worn, at the moment, a translation mechanism works to drive the translation block to translate to the position of a lifting block, after a first suction block and a second suction block are sucked, the lifting mechanism works to drive the lifting block to move upwards to enable the contact of the touch block to be separated from the alarm switch, and the alarm is relieved; at the moment, the infrared sensor detects the abrasion degree of the lining, when the lining is abraded to a set position, the lifting mechanism works to drive the lifting block to descend, the contact of the contact block is in contact with the alarm switch to continuously give an alarm, so that a driver is prompted to replace the brake pad assembly, and the driving safety is guaranteed.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic view of the monitoring alarm mechanism of FIG. 1;

FIG. 3 is an enlarged view of portion A of FIG. 2;

FIG. 4 is a schematic view of the monitoring alarm mechanism of FIG. 1 from another perspective (brake pad assembly not shown);

FIG. 5 is an enlarged view of portion B of FIG. 4;

fig. 6 is an exploded schematic view of the lift mechanism of fig. 5.

The names of the reference numbers in the drawings of the invention are as follows:

the brake pad assembly comprises a brake pad assembly 1, a bottom plate 11, a lining 12, a groove 12a, a brake pad 13, a translation mechanism 2, a translation block 21, a limiting block 21a, a translation driving device 22, a screw 23, an installation plate 24, a lifting mechanism 3, a first suction block 31, a lifting driving device 32, a lifting rod 33, a driving groove 33a, a rotary disc 34, a driving column 34a, a guide block 35, a lifting block 4, an infrared avoidance hole 4a, a second suction block 41, a touch block 42, a contact 42a, a guide column 43, a spring 44, a shell 5, a horizontal limiting groove 5a, a lifting limiting groove 5b, an installation column 51, an alarm switch 6 and an infrared sensor 7.

Detailed Description

The invention is described in further detail below with reference to the accompanying drawings:

as shown in fig. 1 to 6, a trailer brake pad lining wear monitoring and alarming device comprises a monitoring and alarming mechanism matched with a brake pad assembly 1, wherein the monitoring and alarming mechanism comprises a translation mechanism 2, a lifting mechanism 3, a lifting block 4 and a shell 5, the translation mechanism 2 is provided with a translation block 21 capable of moving horizontally, the translation block 21 is provided with the lifting mechanism 3, the lifting mechanism 3 is provided with a first suction block 31 capable of lifting, the lifting block 4 is provided with a second suction block 41 capable of being sucked with the first suction block 31, the lifting block 4 is elastically connected with a touch block 42, the touch block 42 is provided with a contact 42a, an alarm switch 6 is arranged on the inner side of the shell 5 corresponding to the contact 42a, the translation block 21 is provided with an infrared sensor 7, the lift piece 4 on set up infrared hole 4a of dodging, brake block subassembly 1 including bottom plate 11, facing 12 and the brake block 13 that sets gradually, facing 12 on be provided with the recess 12a that touches piece 42 looks adaptation.

The brake pad assembly 1 is a multi-layer structure composed of a base plate 11, a lining 12 and a brake pad 13, wherein the lining 12 can also function as the brake pad, and when the brake pad 13 is worn out, the lining 12 can function as the brake pad 13, only when the brake pad assembly 1 is worn to a certain degree, the attention to the wear degree of the brake pad assembly 1 needs to be strengthened, and the brake pad assembly 1 needs to be replaced as soon as possible. When the brake pad 13 is worn out, the monitoring alarm device carries out first alarm prompt to prompt a driver to pay attention to the abrasion degree of the brake pad assembly 1, and the alarm can be automatically released after a certain time; when the lining 12 is worn to a set thickness (the set thickness is determined by the installation position of the infrared sensor 7), a second alarm prompt is given to prompt a driver that the brake pad assembly 1 needs to be replaced, and the alarm cannot be automatically released.

The first attraction block 31 and the second attraction block 41 may both adopt an electromagnet or a magnet to attract each other, or one of them may adopt an electromagnet or a magnet, and the other one adopts a metal block capable of being magnetically attracted.

In this embodiment, the specific structure of the translation block 21 capable of moving horizontally is as follows: the translation mechanism 2 comprises a translation driving device 22, a screw 23 horizontally arranged is connected to the translation driving device 22, a translation block 21 is in threaded connection with the screw 23, and a limiting structure for limiting the rotation of the translation block 21 is arranged between the translation block 21 and the shell 5.

The above-mentioned translation drive means 22 are preferably electric motors.

The back of translation piece 21 be provided with stopper 21a, shell 5 on be provided with horizontal spacing groove 5a, stopper 21a movably arrange in horizontal spacing groove 5 a.

The limiting block 21a is arranged in the horizontal limiting groove 5a, the limiting block 21a can only move along the horizontal limiting groove 5a, and the limiting block 21a limits the rotation of the translation block 21, so that the translation block 21 can only move along the axis direction of the screw 23. When the translation mechanism 2 works, the translation driving device 22 is started to drive the screw 23 to rotate, and the screw 23 drives the translation block 21 to translate.

There are many structures capable of realizing translation of the translation block 21, for example, a belt pulley is driven to rotate by a motor so as to drive a belt to move, and translation can be realized by fixing the translation block 21 on the belt; if the translation block 21 is driven by an air cylinder, the translation block is driven by the expansion and contraction of the air cylinder to translate. In this embodiment, the translation block 21 is screwed with the screw rod 23, the screw rod 23 is used to drive the translation block 21 to translate, and the translation block 21 only moves by one pitch every time the screw rod 23 rotates by one circle, so that the translation block 21 can slowly move, and the time for first alarm prompt is increased.

In this embodiment, the specific structure that the first suction block 31 can be lifted up and down is as follows: the lifting mechanism 3 comprises a lifting driving device 32 and a lifting rod 33, the lifting driving device 32 is fixed on the translation block 21, the lifting driving device 32 is connected with a turntable 34, a driving column 34a is arranged on the outer edge of the turntable 34, a driving groove 33a matched with the driving column 34a is arranged on the lifting rod 33, and the first suction block 31 is fixed on the lifting rod 33.

The lift driving device 32 is preferably a motor.

The upper side and the lower side of the turntable 34 are respectively provided with a guide block 35 matched with the lifting rod 33. The provision of the guide block 35 prevents the lift lever 33 from being swung, thereby ensuring that the lift lever 33 moves in the vertical direction.

When the lifting mechanism 3 works, the lifting driving device 32 drives the rotating disc 34 to rotate, the driving column 34a on the rotating disc 34 rotates along with the rotating disc, the vertical position of the driving column 34a changes, and as the driving column 34a is arranged in the driving groove 33a of the lifting rod 33, the driving column 34a moves transversely in the driving groove 33a along with the movement of the driving column 34a, and simultaneously drives the lifting rod 33 to lift.

There are many structures for realizing the lifting of the lifting rod 33, for example, a rack is fixed on the lifting rod 33, a motor drives a gear to rotate, and then the gear meshes with the rack to drive the lifting rod 33 to lift. By adopting the lifting structure in the embodiment, the lifting stability and stationarity can be improved.

The driving groove 33a is of an arc structure. The driving groove 33a is designed into an arc structure according to the movement track of the driving column 34 a; the middle of the lift lever 33 is provided with an enlarged portion on which the driving groove 33a is provided.

The back of the lifting block 4 is provided with a guide post 43, the shell 5 is provided with a lifting limiting groove 5b, and the guide post 43 can be movably arranged in the lifting limiting groove 5 b. Through the cooperation of guide post 43 and lift spacing groove 5b, guaranteed that elevator 4 moves along the vertical direction.

The bottom of translation piece 21 level be provided with mounting panel 24, infrared sensor 7 install in on the bottom surface of mounting panel 24.

A spring 44 is arranged between the lifting block 4 and the contact block 42.

The two sides of the bottom plate 11 are respectively provided with an assembling groove, the shell 5 is provided with an installing column 51 matched with the assembling groove, and the assembling grooves are clamped on the corresponding installing columns 51.

The working principle is as follows:

when in a normal state, the translation block 21 is located at the end of the screw 23, and the lifting block 4 is located below the middle of the screw 23, that is, the first suction block 31 and the second suction block 41 are separated; the touch pad 42 is disposed in the groove 12a of the lining 12, and the brake pad 13 is disposed outside the touch pad 42, so that the touch pad 42 is not exposed. With the use of a vehicle, the brake pad assembly 1 can be gradually worn, when the brake pad 13 on the outermost side is worn out, the touch block 42 is exposed, the touch block 42 contacts a brake disc during braking, and under the action of a reaction force, the touch block 42 compresses the spring 44 to enable the contact 42a to touch the alarm switch 6, so that a first alarm prompt is triggered to prompt a driver to pay attention to the wear degree of the brake pad assembly 1.

When the alarm prompts for the first time, the translation mechanism 2 starts to work, the translation driving device 22 (motor) starts to drive the screw 23 to rotate, so that the translation block 21 translates towards the lifting block 4, when the translation block 21 translates to the position of the lifting block 4, the first suction block 31 and the second suction block 41 are sucked, and the translation driving device 22 (motor) stops working; when the lifting mechanism 3 starts to work, the lifting driving device 32 (motor) is started to drive the turntable 34 to rotate, the driving column 34a on the turntable 34 drives the lifting rod 33 to ascend, and the lifting rod 33 ascends to drive the lifting block 4 to ascend due to the attraction of the first attraction block 31 and the second attraction block 41, so that the contact 42a of the contact block 42 is separated from the alarm switch 6, and the alarm is automatically released. After the lift lever 33 is raised to a certain height, the lift driving device 32 (motor) stops operating. The first alarm mainly plays a role in reminding, and is automatically released after the alarm is given for a period of time.

After the brake pad 13 is worn out, the lining 12 serves as the brake pad, at the moment, the lining 12 is worn, the infrared sensor 7 monitors the wear condition of the lining 12, when the lining 12 is worn to a certain degree, the lifting mechanism 3 works again, the lifting driving device 32 (motor) starts to rotate reversely, the lifting rod 33 is made to descend, the contact 42a of the touch block 42 is made to touch the alarm switch 6 again, the second alarm prompt is started to prompt a driver that the brake pad assembly 1 needs to be replaced, and the alarm cannot be automatically released.

By adopting the lifting mechanism 3 in the embodiment, when the alarm is given for the second time, because the turntable 34 does circular motion, the lifting driving device 32 (motor) does not need to be reversed, and when the lifting mechanism 3 is started for the second time, the lifting driving device 32 (motor) rotates in the same direction, so that the purpose that the lifting rod 33 drives the lifting block 4 to descend can be achieved.

While the preferred embodiments of the present invention have been illustrated, various changes and modifications may be made by one skilled in the art without departing from the scope of the present invention.

Claims

1. A trailer brake block brake lining wear monitoring alarm device is characterized in that: comprises a monitoring alarm mechanism matched with a brake block assembly (1), the monitoring alarm mechanism comprises a translation mechanism (2), a lifting mechanism (3), a lifting block (4) and a shell (5), the translation mechanism (2) is provided with a translation block (21) capable of moving horizontally, the translation block (21) is provided with the lifting mechanism (3), the lifting mechanism (3) is provided with a first suction block (31) capable of lifting, the lifting block (4) is provided with a second suction block (41) capable of being sucked with the first suction block (31), the lifting block (4) is elastically connected with a touch block (42), the touch block (42) is provided with a contact (42a), the shell (5) is provided with an alarm switch (6) at the position corresponding to the contact (42a), the brake pad assembly comprises a translation block (21), a lifting block (4), a brake pad assembly (1) and a brake pad assembly, wherein an infrared sensor (7) is arranged on the translation block (21), an infrared avoiding hole (4a) is formed in the lifting block (4), the brake pad assembly (1) comprises a base plate (11), a lining (12) and a brake pad (13) which are sequentially arranged, and a groove (12a) matched with a contact block (42) is formed in the lining (12);

when the brake block (13) at the outermost side is worn out, the touch block (42) is exposed, and the touch block (42) contacts the brake disc during braking, so that the contact (42a) touches the alarm switch (6) to trigger a first alarm prompt; the wear condition of the lining (12) is monitored by the infrared sensor (7), when the lining (12) is worn to a certain degree, the contact (42a) of the contact block (42) is contacted with the alarm switch (6) again, and the second alarm prompt is started.

2. The trailer brake pad brake lining wear monitoring and warning device of claim 1, wherein: the translation block (21) can move horizontally and has the specific structure that: translation mechanism (2) including translation drive arrangement (22), translation drive arrangement (22) on be connected with screw rod (23) that the level set up, translation piece (21) with screw rod (23) looks spiro union, translation piece (21) with be provided with between shell (5) and restrict translation piece (21) pivoted limit structure.

3. The trailer brake pad brake lining wear monitoring and warning device of claim 2, wherein: the back of translation piece (21) be provided with stopper (21a), shell (5) on be provided with horizontal spacing groove (5a), stopper (21a) movably arrange in horizontal spacing groove (5 a).

4. The trailer brake pad lining wear monitoring and warning device of claim 1, wherein: the first suction block (31) can be lifted and lowered in a specific structure that: the lifting mechanism (3) comprises a lifting driving device (32) and a lifting rod (33), the lifting driving device (32) is fixed on the translation block (21), the lifting driving device (32) is connected with a turntable (34), a driving column (34a) is arranged on the outer edge of the turntable (34), a driving groove (33a) matched with the driving column (34a) is formed in the lifting rod (33), and the first suction block (31) is fixed on the lifting rod (33).

5. The trailer brake pad brake lining wear monitoring and warning device of claim 4, wherein: the upper side and the lower side of the turntable (34) are respectively provided with a guide block (35) matched with the lifting rod (33).

6. The trailer brake pad brake lining wear monitoring and warning device of claim 5, wherein: the driving groove (33a) is of an arc structure.

7. The trailer brake pad lining wear monitoring alarm device as claimed in claim 1, wherein a guide post (43) is arranged on the back of the lifting block (4), a lifting limit groove (5b) is arranged on the shell (5), and the guide post (43) is movably arranged in the lifting limit groove (5 b).

8. A trailer brake pad brake lining wear monitoring alarm device as claimed in any one of claims 1 to 7 wherein: the bottom level of translation piece (21) be provided with mounting panel (24), infrared sensor (7) install in on the bottom surface of mounting panel (24).

9. The trailer brake pad brake lining wear monitoring and warning device of claim 8, wherein: a spring (44) is arranged between the lifting block (4) and the touch block (42).

10. The trailer brake pad brake lining wear monitoring and warning device of claim 9, wherein: the two sides of the bottom plate (11) are respectively provided with an assembly groove, the shell (5) is provided with an installation column (51) matched with the assembly grooves, and the assembly grooves are clamped and matched on the corresponding installation columns (51).