CN107327525B - Front disc rear drum CBS braking system and braking stroke distribution structure thereof - Google Patents
Front disc rear drum CBS braking system and braking stroke distribution structure thereof Download PDFInfo
- Publication number
- CN107327525B CN107327525B CN201710592847.7A CN201710592847A CN107327525B CN 107327525 B CN107327525 B CN 107327525B CN 201710592847 A CN201710592847 A CN 201710592847A CN 107327525 B CN107327525 B CN 107327525B
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- Prior art keywords
- regulator
- front disc
- seat
- braking
- cbs
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/38—Slack adjusters
- F16D65/40—Slack adjusters mechanical
- F16D65/62—Slack adjusters mechanical self-acting in both directions for adjusting excessive and insufficient play
- F16D65/64—Slack adjusters mechanical self-acting in both directions for adjusting excessive and insufficient play by means of direct linear adjustment
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/38—Slack adjusters
- F16D65/40—Slack adjusters mechanical
- F16D65/62—Slack adjusters mechanical self-acting in both directions for adjusting excessive and insufficient play
- F16D65/66—Slack adjusters mechanical self-acting in both directions for adjusting excessive and insufficient play with screw-thread and nut
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
The invention discloses a front disc rear drum CBS braking system and a braking stroke distribution structure thereof, wherein the system comprises a regulator assembly between a rear braking arm and a front disc braking main pump, the regulator assembly comprises a regulator lower seat, a regulator upper seat which can be adjusted relative distance with the regulator lower seat through a regulator locking screw, a regulator spring between the regulator lower seat and the regulator upper seat, a front disc braking push rod screw is connected between the regulator upper seat and the front disc braking main pump, one end of the front disc braking push rod screw is fixedly connected with a front disc braking main pump through threads, the other end of the front disc braking push rod screw is connected with the regulator upper seat through threads and locked through a first locking nut, a limit threaded bushing is matched with the front disc braking push rod screw through threads and locked through a second locking nut, and the stable and reasonable structure of the whole CBS braking system is realized through the position relation and the limitation of various sizes among a regulator part, the limit threaded bushing, the front disc braking main pump and the like, and the situations of front wheel locking, rear disc braking abrasion, front disc abrasion and the like are avoided.
Description
Technical Field
The invention relates to a front disc rear drum CBS braking system and a braking stroke distribution structure thereof, belonging to the technical field of motor vehicle braking.
Background
The disc brake is also called hydraulic brake or oil brake, and consists of a brake disc connected with a hub and a brake caliper with an edge jacket, wherein when the brake is pressed down, high-pressure brake oil pushes a brake caliper brake block to clamp the brake disc, so that a braking effect is generated; the drum brake is a traditional brake mode of friction deceleration between a brake pad and a wheel drum, and is a drum brake for a front wheel and a rear wheel of a vehicle on the market, namely a front-disc rear-drum CBS brake system.
For a front-disc rear-drum CBS braking system, a rear braking arm drives a rear drum brake and a front disc brake simultaneously through a switching mechanism via a regulator assembly, and the strokes and structures between each part of the conventional regulator assembly and the rear braking arm, the front disc brake main pump and the like are different, so that the situations of front wheel locking, rear drum brake abrasion, front disc brake sheet abrasion and the like are easily caused.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide the front-disc rear-drum CBS braking system and the braking stroke distribution structure thereof, and the stable and reasonable structure of the whole CBS braking system is realized by optimizing the structure of the regulator assembly and the braking stroke, so that the situations of locking of the front wheels, abrasion of the rear drum brake, abrasion of the front disc brake and the like are avoided.
In order to achieve the above object, the present invention provides the following technical solutions: the utility model provides a drum CBS braking system behind preceding dish, its includes the regulator assembly of connecting between back brake arm and preceding dish main pump of stopping, this regulator assembly including with the lower seat of regulator that the back brake arm is connected, with the lower seat of this regulator with the central axis and accessible regulator locking screw adjustment relative distance's regulator seat, the regulator spring of location between this lower seat of regulator and the regulator seat of seat, wherein, the regulator seat of seat with be connected with preceding dish between the main pump of stopping, this preceding dish push rod screw one end with preceding dish is stopped the screw thread and is linked firmly, the other end with the upper seat threaded connection of regulator and through first lock nut locking, the screw thread fit has spacing screw bush on the preceding dish push rod screw, simultaneously through second lock nut lock fastening.
Further, the lower seat of the regulator is provided with a stepped counter bore, the locking screw of the regulator is in sliding fit with the stepped counter bore, and the nut of the locking screw of the regulator is used for unidirectional limiting.
Further, the upper seat of the regulator is provided with a threaded through hole, one end of the threaded through hole is in threaded fit with the locking screw of the regulator, and the other end of the threaded through hole is in threaded fit with the push rod screw of the front disc brake.
Furthermore, the opposite ends of the lower regulator seat and the upper regulator seat are respectively provided with a stepped shaft shoulder, and the two ends of the regulator spring are correspondingly limited on the stepped shaft shoulders of the lower regulator seat and the upper regulator seat.
Further, the second lock nut is located on an end of the limit threaded bushing adjacent to the regulator assembly.
A brake stroke distribution structure of a front disc rear drum CBS brake system, characterized in that: the distance between the limiting ends of the regulator springs on the lower regulator seat and the upper regulator seat is the assembly size S2; the distance between the adjacent ends of the lower regulator seat and the upper regulator seat is a compressible spring stroke S3; the distance between the front disc brake main pump and the adjacent end parts of the limiting threaded bushing is a safety distance S1, wherein the free length of the regulator spring is greater than the assembly size S2, the compressible stroke S3 of the spring is greater than the safety distance S1, and the safety distance S1 is more than or equal to 0.
Further, the initial set value of the safety distance S1 is: s1 is more than or equal to 6mm and less than or equal to 8mm.
The invention has the beneficial effects that: through optimizing regulator assembly structure and braking stroke, realized the stable reasonable structure of whole CBS braking system, avoided the emergence of situations such as front wheel locking, back drum wearing and tearing of stopping, preceding dish piece wearing and tearing.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is an exploded schematic view of FIG. 1;
FIG. 3 is a schematic view of the trip of FIG. 1;
fig. 4 is an enlarged schematic view in partial section of fig. 3.
Detailed Description
The invention will be described in further detail with reference to specific embodiments and drawings.
1-4, a front disc rear drum CBS braking system comprises a regulator assembly connected between a rear braking arm and a front disc brake main pump 1, wherein the regulator assembly comprises a regulator lower seat 8 connected with the rear braking arm, a regulator upper seat 6 which is coaxial with the regulator lower seat 8 and can adjust the relative distance through a regulator locking screw 9, and a regulator spring 7 positioned between the regulator lower seat 8 and the regulator upper seat 6, wherein a front disc brake push rod screw 2 is connected between the regulator upper seat 6 and the front disc brake main pump 1, one end of the front disc brake push rod screw 2 is fixedly connected with a front disc brake main pump 1 through threads, the other end of the front disc brake push rod screw 2 is in threaded connection with the regulator upper seat 6 and is locked through a first locking nut 5, and a limit threaded bushing 3 is in threaded fit on the front disc brake push rod screw 2 and is simultaneously fixedly connected through a second locking nut 4.
Specifically, the lower regulator seat 8 may be directly connected to the rear brake arm or connected to the rear brake arm through a switching mechanism, and is driven by the rear brake arm to apply force in the axial direction of the lower regulator seat 8 to drive the rear drum brake and the front disc brake. The lower regulator seat 8 is provided with a stepped counter bore along the central axis direction, the regulator locking screw 9 is in sliding fit with the stepped counter bore, the screw cap of the regulator locking screw 9 is used for unidirectional limiting, the upper regulator seat 6 is provided with a threaded through hole, one end of the threaded through hole is in threaded fit with the regulator locking screw 9, and the other end of the threaded through hole is in threaded fit with the front disc brake push rod screw 2. The opposite ends of the lower regulator seat 8 and the upper regulator seat 6 are respectively provided with a stepped shaft shoulder, and the two ends of the regulator spring 7 are correspondingly limited on the stepped shaft shoulders of the lower regulator seat 8 and the upper regulator seat 6. Finally, a second lock nut 4 is located on the end of the limit threaded bushing 3 adjacent to the regulator assembly.
The invention also discloses a braking stroke distribution structure of the front disc rear drum CBS braking system, wherein the limiting ends of the regulator springs 7 on the lower regulator seat 8 and the upper regulator seat 6 respectively, namely the distance between the corresponding stepped shaft shoulders of the lower regulator seat 8 and the upper regulator seat 6 is the assembly size S2; the distance between the adjacent ends of the lower regulator seat 8 and the upper regulator seat 6 is the compressible stroke S3 of the spring; the distance between the adjacent ends of the front disc brake main pump 1 and the limiting threaded bushing 3 is a safety distance S1, wherein the free length of the regulator spring 7 is greater than the assembly size S2, the compressible stroke S3 of the spring is greater than the safety distance S1, and the safety distance S1 is more than or equal to 0. Here, the initial set value of the safe distance S1 is: s1 is more than or equal to 6mm and less than or equal to 8mm.
By the free length of the regulator spring 7 being greater than the assembly dimension S2, the regulator spring 7 is provided with a pre-compression during assembly, the setting of which pre-compression is designed in dependence on the stiffness of the regulator spring 7 satisfying the front disc brake lever force. The safety distance S1 is set according to the braking stroke of the front disc brake, and is generally 6-8 mm, so that front wheels are prevented from locking due to overlarge front braking force when front and rear combined braking is performed, and potential safety hazards of falling of a driver are avoided.
The regulator assembly is connected to the front disc brake push rod screw 2 through the internal threads of the regulator upper seat 6 on the regulator assembly, and is locked through the first locking nut 5 when being assembled to a proper position so as to prevent loosening; the larger the compressible spring travel S3, the greater the rear brake travel that can be satisfied. In the braking process, after the current braking reaches a preset stroke, namely after s1=0, at this time, the limiting threaded bushing 3 is in contact with the front disc brake main pump 1, and the front disc brake push rod screw 2 stops advancing because of the fixed front disc brake main pump 1, and meanwhile, the applied force can continue to act because of the compressibility of the regulator spring 7, namely the value of the assembly size S2 is further reduced, so that the problem that the front and rear strokes formed by the rapid abrasion of the rear drum brake and the slow abrasion speed of the front disc brake sheet are inconsistent can be solved.
The foregoing has described in detail the technical solutions provided by the embodiments of the present invention, and specific examples have been applied to illustrate the principles and implementations of the embodiments of the present invention, where the above description of the embodiments is only suitable for helping to understand the principles of the embodiments of the present invention; meanwhile, as for those skilled in the art, according to the embodiments of the present invention, there are variations in the specific embodiments and the application scope, and the present description should not be construed as limiting the present invention.
Claims (7)
1. A front disc rear drum CBS braking system, characterized by: including being connected in the regulator assembly between back brake arm and preceding dish main pump (1), this regulator assembly including with the regulator lower carriage (8) that back brake arm is connected, with this regulator lower carriage (8) with regulator upper carriage (6) of central axis, fix a position in regulator spring (7) between this regulator lower carriage (8) and regulator upper carriage (6), regulator lower carriage (8) with adjust relative distance through regulator locking screw (9) between regulator upper carriage (6), wherein, regulator upper carriage (6) with preceding dish is stopped and is connected with preceding dish between main pump (1) and is stopped push rod screw (2), this preceding dish is stopped push rod screw (2) one end with preceding dish main pump (1) screw thread fastening, the other end with regulator upper carriage (6) screw thread connection and locking through first lock nut (5), screw thread fit has spacing screw bush (3) on preceding dish is stopped push rod screw (2) simultaneously and is stopped the locking through second lock nut (4) and is stopped and is linked.
2. A front disc rear drum CBS braking system as claimed in claim 1, wherein: the lower regulator seat (8) is provided with a stepped counter bore, the regulator locking screw (9) is in sliding fit with the stepped counter bore, and one-way limit is realized through a nut of the regulator locking screw (9).
3. A front disc rear drum CBS braking system as claimed in claim 2, wherein: the upper seat (6) of the adjuster is provided with a threaded through hole, one end of the threaded through hole is in threaded fit with the locking screw (9) of the adjuster, and the other end of the threaded through hole is in threaded fit with the push rod screw (2) of the front disc brake.
4. A front disc rear drum CBS braking system as claimed in claim 1, wherein: the opposite ends of the lower regulator seat (8) and the upper regulator seat (6) are respectively provided with a stepped shaft shoulder, and the two ends of the regulator spring (7) are correspondingly limited on the stepped shaft shoulders of the lower regulator seat (8) and the upper regulator seat (6).
5. A front disc rear drum CBS braking system as claimed in claim 1, wherein: the second lock nut (4) is positioned on one end of the limit threaded bushing (3) adjacent to the regulator assembly.
6. A brake stroke distribution structure of a front disc rear drum CBS brake system according to any one of claims 1 to 5, wherein: the distance between the limiting ends of the regulator spring (7) on the regulator lower seat (8) and the regulator upper seat (6) is the assembly size S2; the distance between the adjacent ends of the lower regulator seat (8) and the upper regulator seat (6) is a compressible spring stroke S3; the distance between the adjacent ends of the front disc brake main pump (1) and the limiting threaded bushing (3) is a safety distance S1, wherein the free length of the regulator spring (7) is greater than the assembly size S2, the compressible stroke S3 of the spring is greater than the safety distance S1, and the safety distance S1 is more than or equal to 0.
7. A brake stroke distribution structure of a front disc rear drum CBS brake system as claimed in claim 6, wherein: the initial set value of the safety distance S1 is as follows: s1 is more than or equal to 6mm and less than or equal to 8mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710592847.7A CN107327525B (en) | 2017-07-19 | 2017-07-19 | Front disc rear drum CBS braking system and braking stroke distribution structure thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710592847.7A CN107327525B (en) | 2017-07-19 | 2017-07-19 | Front disc rear drum CBS braking system and braking stroke distribution structure thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107327525A CN107327525A (en) | 2017-11-07 |
| CN107327525B true CN107327525B (en) | 2023-07-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710592847.7A Active CN107327525B (en) | 2017-07-19 | 2017-07-19 | Front disc rear drum CBS braking system and braking stroke distribution structure thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107327525B (en) |
Citations (3)
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| CN105584579A (en) * | 2016-02-03 | 2016-05-18 | 浙江展翔汽摩配有限公司 | Front-disc rear-drum linkage braking system |
| CN106080927A (en) * | 2016-06-21 | 2016-11-09 | 厦门厦杏摩托有限公司 | Drum linked braking system after dish before a kind of motorcycle |
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| Publication number | Publication date |
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| CN107327525A (en) | 2017-11-07 |
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