CN208900591U - Arm for automatically regulating clearance of brake with built-in brake pad wear instruction function - Google Patents
Arm for automatically regulating clearance of brake with built-in brake pad wear instruction function Download PDFInfo
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- CN208900591U CN208900591U CN201821702345.1U CN201821702345U CN208900591U CN 208900591 U CN208900591 U CN 208900591U CN 201821702345 U CN201821702345 U CN 201821702345U CN 208900591 U CN208900591 U CN 208900591U
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- gear
- brake
- arm
- induction
- worm gear
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Abstract
The utility model discloses the arm for automatically regulating clearance of brake with built-in brake pad wear instruction function, including self-regulated arm body, self-regulated arm body contains brake clearance automatic mechanism part and worm gear corner monitoring transducing part, worm gear is set in the adjustment arm housing of self-regulated arm body, one gear wheel of setting is inlayed on the outside of worm gear and is tightened together with worm gear, induction gear in worm gear corner monitoring transducing part is engaged with gear wheel, the inner ring of induction gear sets a magnet and is embedded in induction gear, magnet and induction gear rotate synchronously, having the fixed sensor sensing head assembly on adjustment arm cover board in the front of induction gear, it is responsible for the rotational angle of induction perception induction gear and turns out information to carry out processing analysis to ECU, the worm gear corner monitoring transducing part of the utility model is built in adjustment arm shell Internal portion, monitoring worm gear gyration indirect monitoring brake pad wear amount are indicated and are alarmed, and external mechanical damage is avoided.
Description
Technical field
The utility model relates to brake system of car technical field, brake pad wear indicated work built in especially a kind of band
The arm for automatically regulating clearance of brake of energy.
Background technique
The middle regulation of GB7258-2017 " motor vehicle safe and technical specification " standard: new to dispatch from the factory from January, 2018
Vehicle must be equipped with " brake clearance wear automatic-compensation device ", be exactly brake clearance adjust automatically to S- cam drum type brake speech
Arm.
Arm for automatically regulating clearance of brake, referred to as " automatic adjusting arm " or " self-regulated arm ", as its name suggests, being exactly can be real-time
Ground, the device for automatically adjusting braking gap guarantee that braking gap is in a suitable numerical value, can make brake in time,
Reliably, highly beneficial for traffic safety.In addition, if the vehicle of equipment ABS does not assemble automatic adjusting arm and cannot guarantee
Optimum efficiency is realized, because difference situations such as can cause the arm of force of individual brake cylinders, brake force in the case of manually, causes
Braking ability cannot be harmonious.
Brake pad wear indicating alarm, be the abrasion condition of brake lining in brake is monitored in real time, and
Abrasion condition is provided to driver, when then the limit provides warning message to abrasion gasket wear, prompt driver replaces it, with
Guarantee braking safety.
It provides in GB7258-2017 " motor vehicle safe and technical specification " standard: from the year two thousand twenty 2 months, newly going out again
Factory's vehicle must be equipped with " brake pad wear alarm ".
This two product is respectively present and is applied successfully at present, they are relatively independent.
Arm for automatically regulating clearance of brake is the reaction force perception of the angle and suffered camshaft by turning over to itself, will
Normal clearance, excessive gaps, flexible deformation three identification are come, and are only adjusted to excessive gaps, to guarantee brake clearance
It is constant.
Brake pad wear alarm, by major class point, there are two types of the product of structure on the market at present
The first structure inside buries and rubs formula wear alarm device.Shown in structure See Figure 1: the structure is in brake lining
A through-hole is made a call between 1002 and shoe brake 1004, and an electric wire is buried in the hole.The mill of electric wire turn point and brake lining
Damage 1003 flushes of the limit；Electric wire 1001 is connected with the abrasion alarm control panel (or lamp or sound) of vehicle, which is in
Normal open state.
When brake lining is worn down to the limit, the electric wire being embedded in it can also be rubbed.At this moment electric wire disconnects, and connects with it
The circuit connect disconnects, and control panel alarm prompts replacement brake lining.
This constructed value is low, but disposable, and more complex when embedded electric wire, and inbuilt height is difficult to control, therefore
It is more demanding to post-service.
In addition, this embedded method, often using a rivet hole between brake lining and shoe brake, such one
Come, the connection between brake lining and shoe brake can be weakened, and issue howling when easily leading to braking.
The structure can only be " disconnecting, closure " two states, cannot be indicated in real time abrasion condition, can only be accomplished
" limiting alarm ".
It is leading " external stand alone type brake pad wear indicating alarm " that second of structure, which is with Haldex, such as the following figure
Shown in 2: the infrastructure product is altered on same root camshaft 1007 together with adjustment arm 1006,1008 shell of alarm and adjustment arm
Shell is fixed together, and movable plate is connected together by the spline 1005 of 1007 outer end of camshaft with cam sleeve in alarm 1008
Movement, as the spline connection of the worm gear of adjustment arm and camshaft.
When brake lining is worn, adjustment arm 1006 can not stop to change the position of opposite adjustment 1006 shell of arm of worm gear,
To change the initial position of camshaft 1007, thus guarantee the clearance constant between brake lining and brake drum forever,
During this, the movable plate in alarm 1008 can also change the relative position of itself and shell.
When brake lining is worn down to the limit, cam has also turned over an angle, at this moment the movable plate in alarm 1008
As soon as opposite shell has rotated angle, when will trigger switch, conducting (or closing) circuit, to alarm.
The product is the operating position by monitoring camshaft 1007, the abrasion condition of indirect monitoring brake lining and progress
Alarm.
The product is reusable, will not discard because replacing brake lining, the structure according to function needs, can and it is real
Existing " abrasion condition indicates in real time " or/and " limiting alarm " two kinds of functions, it is clear that it is advantageously than the first structure.This is it
The advantages of.
But it has several drawbacks in that:
When 1 assembly, due to the outermost end in adjustment arm mounted in camshaft, it to be at this moment further added by an alarm, it is original
Cam shaft length is inadequate, Yao Jiachang, needs special processing.
The shell of 2 products need to adjustment arm shell fixedly together, in this way, need to have fixed hole position on adjustment shell,
Not every adjustment arm matched can use.
3 its exposed under automobile chassis, bad environments are interfered or are damaged vulnerable to extraneous unfavorable factor.
4 prices are relatively high.Several times are higher by than the first structure.
Utility model content
In view of the above-mentioned problems, the novel product of the utility model, it is reasonable, structure novel " in provide a kind of design
Set the arm for automatically regulating clearance of brake of brake pad wear instruction function ".
The utility model " arm for automatically regulating clearance of brake with built-in brake pad wear instruction function " is a kind of completely new
Structure, be used for commercial vehicle S- cam drum type brake, realization is completed while adjust brake clearance in real time to serve as a contrast braking
The monitoring of pad wear situation provides electric signal appropriate, to complete the instruction and limiting alarm to brake pad wear situation.
The utility model relates to a new product, be simultaneously have there are two types of function the product being combined into one, wherein one
Kind function is the adjustment arm with brake clearance automatic function, and another function is the instruction of brake lining wear tell-tale function
Alarm.
The sensor for monitoring cam axle is built in inside adjustment arm, before existing assembly environment requirement can not be changed
Put, realize brake lining " abrasion condition indicates in real time " or/and " limiting alarm ", while to brake clearance carry out in real time it is automatic
Adjustment keeps brake clearance constant.
Including self-regulated arm body, self-regulated arm body contains brake clearance automatic mechanism part and the monitoring of worm gear corner passes
Feel part, set worm gear in the adjustment arm housing of self-regulated arm body, one gear wheel of setting and and worm gear are inlayed on the outside of worm gear
It tightens together, the induction gear in worm gear corner monitoring transducing part is engaged with gear wheel, and the inner ring of induction gear sets one
Magnet is simultaneously embedded in induction gear, and magnet and induction gear rotate synchronously, the front of induction gear have one it is fixed
Adjusting the sensor sensing head assembly on arm cover board, it is responsible for the rotational angle of induction perception induction gear and turns out information
Processing analysis is carried out to ECU, the worm gear corner monitoring transducing part of the utility model is built in inside adjustment arm housing, monitors snail
Wheel gyration indirect monitoring brake pad wear amount is indicated and is alarmed, and external mechanical damage is avoided.
The system with built-in brake pad wear instruction function that achieve the above purpose, the technical solution of the present invention is:
Dynamic gap automatic regulating arm, including self-regulated arm body, the self-regulated arm body contain brake clearance automatic mechanism part and
Worm gear corner monitors transducing part, sets worm gear in the adjustment arm housing of self-regulated arm body, and setting one is inlayed on the outside of worm gear
Gear wheel simultaneously tightens together with worm gear, and the induction gear in worm gear corner monitoring transducing part is engaged with gear wheel and with big
The rotation of gear and rotate synchronously, the inner ring of the induction gear sets a magnet and is embedded in induction gear, the magnet
It is rotated synchronously with induction gear, has the fixed sensor sensing head group on adjustment arm cover board in the front of induction gear
Part.
Further setting, the magnet are permanent magnet.
Further setting, the induction gear are identical as the modulus of gear wheel.
The beneficial effects of the utility model are: the worm gear corner monitoring transducing part of the utility model is built in adjustment arm shell
Internal portion, monitoring worm gear gyration indirect monitoring brake pad wear amount are indicated and are alarmed, and external mechanical damage is avoided,
Outer dimension does not change existing adjustment arm configuration size, and when installation is not required in addition lengthen camshaft, without change
Brake lining riveting method, without there is any redundant work；It can be repeated as many times and use, product and adjustment arm same service life；Structure letter
Single, the multiple wheels of a trolley share an ECU, substantially reduce application cost and maintenance cost.
Detailed description of the invention
Fig. 1 is that interior bury rubs formula wear alarm device structural schematic diagram；
Fig. 2 is external free-standing brake pad wear indicating alarm；
Fig. 3 is the schematic diagram of the utility model；
Fig. 4 is the A-A cross-sectional view in Fig. 3.
In figure: brake clearance automatic mechanism part 1, worm gear corner monitoring transducing part 2, worm gear 3, adjustment arm housing
4, induction gear 5, magnet 6, sensor sensing head assembly 7, gear wheel 8, self-regulated arm body 9, electric wire 1001, brake lining
1002, the limit of wear 1003, shoe brake 1004, spline 1005, adjustment arm 1006, camshaft 1007, alarm 1008.
Specific embodiment
Below with reference to the embodiments and with reference to the accompanying drawing the technical solutions of the present invention will be further described.
As shown in Fig. 3~Fig. 4, the arm for automatically regulating clearance of brake with built-in brake pad wear instruction function, including from
Arm body 9 is adjusted, the self-regulated arm body 9 monitors transducing part containing brake clearance automatic mechanism part 1 and worm gear corner
2, set worm gear 3 in the adjustment arm housing 4 of self-regulated arm body 9, the outside of worm gear 3 inlay one gear wheel 8 of setting and with worm gear 3
It tightens together, the induction gear 5 in worm gear corner monitoring transducing part 2 is engaged with gear wheel 8 and with the rotation of gear wheel 8
And rotate synchronously, the inner ring of the induction gear 5 sets a magnet 6 and is embedded in induction gear 5, the magnet 6 and induction
Gear 5 rotates synchronously, and has the fixed sensor sensing head assembly 7 on adjustment arm cover board in the front of induction gear 5,
The worm gear corner monitoring transducing part of the utility model is built in inside adjustment arm housing, monitors worm gear gyration indirect monitoring system
Dynamic gasket wear amount is indicated and is alarmed, and external mechanical damage is avoided, and outer dimension does not change existing adjustment arm configuration
Size, when installation, are not required in addition lengthen camshaft, any extra without having without changing brake lining riveting method
Work；It can be repeated as many times and use, product and adjustment arm same service life；Structure is simple, and the multiple wheels of a trolley share an ECU, greatly
It is big to reduce application cost and maintenance cost.
The magnet 6 be permanent magnet, can with issue signal after 7 magnetic induction of sensor sensing head assembly.
The induction gear 5 is identical as the modulus of gear wheel 8.
Case study on implementation
When installing this adjustment arm for the first time (or the brake lining more renewed), when adjusting arm together with cam sleeve, this
When since adjustment arm and gas chamber pin shaft be nature to just, without any interaction force, the operating position of camshaft at this time is counted
For starting point, angle zero at this moment is carried out to ECU.
When brake lining is worn, adjustment arm can not stop to adjust brake clearance, change worm gear 3, gear wheel 8 and camshaft
The angle position of opposite adjustment arm housing.At this moment induction gear 5 can also send out rotation, and at this moment sensor sensing head assembly 7 can will be felt
The angle for answering gear to turn over is passed to ECU in a manner of electric signal and carries out processing analysis, the operating position of real-time monitoring camshaft,
To indirect monitoring brake pad wear situation, in this course, abrasion feelings of the signal issued by ECU to brake lining
Condition is indicated in real time.
When one fixed angle value of cam axle, show that brake pad wear has arrived the limit, ECU issues signal here
It alarms.
Can also be as needed, only alarm the limit of wear, and without indicating in real time.
The advantages of basic principles and main features and the utility model of the utility model have been shown and described above.
The technical staff of the industry is also aware that the utility model is not limited by above-mentioned case study on implementation, above-mentioned case study on implementation and specification
Described in only illustrate the principles of the present invention, do not depart from the utility model design scope under the premise of, the utility model
It will also have various changes and improvements, these various changes and improvements fall within the scope of the claimed invention.This is practical new
Type is claimed range and is defined by the appending claims and its equivalent thereof.
Claims (3)
1. the arm for automatically regulating clearance of brake with built-in brake pad wear instruction function, it is characterised in that: including self-regulated arm sheet
Body (9), the self-regulated arm body (9) monitor transducing part containing brake clearance automatic mechanism part (1) and worm gear corner
(2), worm gear (3) are set in the adjustment arm housing (4) of self-regulated arm body (9), one gear wheel of setting is inlayed on the outside of worm gear (3)
(8) and with worm gear (3) it tightens together, the induction gear (5) in worm gear corner monitoring transducing part (2) is nibbled with gear wheel (8)
Merging is rotated synchronously with the rotation of gear wheel (8), and the inner ring of the induction gear (5) sets a magnet (6) and is embedded in
In induction gear (5), the magnet (6) and induction gear (5) are rotated synchronously, and have a fixation in the front of induction gear (5)
Adjustment arm cover board on sensor sensing head assembly (7).
2. the arm for automatically regulating clearance of brake as described in claim 1 with built-in brake pad wear instruction function, feature exist
In: the magnet (6) is permanent magnet.
3. the arm for automatically regulating clearance of brake as described in claim 1 with built-in brake pad wear instruction function, feature exist
In: the induction gear (5) is identical as the modulus of gear wheel (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821702345.1U CN208900591U (en) | 2018-10-20 | 2018-10-20 | Arm for automatically regulating clearance of brake with built-in brake pad wear instruction function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821702345.1U CN208900591U (en) | 2018-10-20 | 2018-10-20 | Arm for automatically regulating clearance of brake with built-in brake pad wear instruction function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208900591U true CN208900591U (en) | 2019-05-24 |
Family
ID=66576374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821702345.1U Expired - Fee Related CN208900591U (en) | 2018-10-20 | 2018-10-20 | Arm for automatically regulating clearance of brake with built-in brake pad wear instruction function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208900591U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109139751A (en) * | 2018-10-20 | 2019-01-04 | 绍兴驰达汽车配件制造有限公司 | Arm for automatically regulating clearance of brake with built-in brake pad wear instruction function |
| CN113623344A (en) * | 2020-05-09 | 2021-11-09 | 威伯科印度有限公司 | Automatic slack adjuster for a vehicle, brake system and wheel set having an automatic slack adjuster |
| CN114483839A (en) * | 2022-01-24 | 2022-05-13 | 温州瑞立科密汽车电子有限公司 | Built-in automatic wear sensor adjusting arm with structure capable of returning to zero position |
-
2018
- 2018-10-20 CN CN201821702345.1U patent/CN208900591U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109139751A (en) * | 2018-10-20 | 2019-01-04 | 绍兴驰达汽车配件制造有限公司 | Arm for automatically regulating clearance of brake with built-in brake pad wear instruction function |
| CN113623344A (en) * | 2020-05-09 | 2021-11-09 | 威伯科印度有限公司 | Automatic slack adjuster for a vehicle, brake system and wheel set having an automatic slack adjuster |
| CN113623344B (en) * | 2020-05-09 | 2023-02-21 | 威伯科印度有限公司 | Automatic slack adjuster, brake system and wheel set for vehicle |
| US11644074B2 (en) | 2020-05-09 | 2023-05-09 | Zf Commercial Vehicle Control Systems India Limited | Automatic slack adjuster for vehicle, braking system and wheelset having an automatic slack adjuster |
| CN114483839A (en) * | 2022-01-24 | 2022-05-13 | 温州瑞立科密汽车电子有限公司 | Built-in automatic wear sensor adjusting arm with structure capable of returning to zero position |
| CN114483839B (en) * | 2022-01-24 | 2023-07-07 | 温州瑞立科密汽车电子有限公司 | Built-in wear sensor automatic adjusting arm with zero-return structure |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190524 Termination date: 20211020 |