CN104455090B - Drum brake and car - Google Patents
Drum brake and car Download PDFInfo
- Publication number
- CN104455090B CN104455090B CN201410738244.XA CN201410738244A CN104455090B CN 104455090 B CN104455090 B CN 104455090B CN 201410738244 A CN201410738244 A CN 201410738244A CN 104455090 B CN104455090 B CN 104455090B
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- brake
- drum
- drive division
- tie
- substrate
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Abstract
The invention discloses a drum brake and a car. The drum brake comprises a substrate, a brake drum arranged on the substrate, and two brake shoes oppositely arranged inside the brake drum, and further comprises a pull plate and a push rod, wherein a pull wire connecting part, a rotational connecting part and a first driving part are sequentially arranged on the pull plate; the pull wire connecting part and the rotational connecting part are positioned on the two sides of the substrate respectively; one end of the push rod is rotationally connected with the pull plate through the rotational connecting part; a second driving part is arranged at the other end of the push rod; when the pull wire connecting part is pulled to enable the pull plate to move, the first driving part and the second driving part rotate to leave from each other; a through hole is formed in each of the opposite positions of the two brake shoes; the first driving part and the second driving part are positioned inside different through holes. According to the drum brake provided by the invention, through the pull rod and the push rod, the pull wire penetrating through the substrate and positioned inside the brake drum in the prior art is substituted, so that multiple folding of the pull wire is naturally avoided.
Description
Technical field
The present invention relates to automotive engineering, and in particular to a kind of drum brake and automobile.
Background technology
Drum brake is conventional automotive brake, and it passes through transmission mechanism and the friction plate of brake-shoe is pressed into braking
Drum inner side, so as to produce brake force, brake wheel causes car deceleration or parking, the so safety to ensure to drive a vehicle.
Fig. 1 is the top view of drum brake in the prior art, and Fig. 2 is the front view of drum brake in the prior art,
As shown in Figure 1-2, drum brake of the prior art includes that substrate 11, the brake drum being arranged on substrate 11 (do not show in figure
Go out), two brake-shoes and drive link 13 that are oppositely arranged in brake drum, two brake-shoes are respectively neck hoof 15 and from hoof 12,
One end of hoof 15 is led to be connected with wire drawing 14, the other end for leading hoof 15 is braking parts 151, one end of drive link 13 rotates connection neck hoof
15 between wire drawing 14 and braking parts 151, and from hoof 12, the wire drawing 14 of automobile passes through the He of substrate 11 for the other end connection of drive link 13
Other parts of drum brake are connected with one end of neck hoof 15.During work, the pulling neck hoof 15 of wire drawing 14 makes its braking parts 151
Outer shifting is braked with sticking brake drum, and after braking parts 151 cannot continue outer shifting because of the prevention of brake drum, neck hoof 15 continues
Rotation is moved with driving drive link 13 to drive from hoof 12, until also sticking brake drum from hoof 12 realizes braking, so as to complete two
The braking of brake-shoe.
The deficiencies in the prior art part is that as shown in Figure 1-2, wire drawing 14 penetrates the system of opposite side from the side of substrate 11
Bending is needed when in dynamic drum, because the stop of parts is also impossible to straight line when wire drawing 14 is arranged in brake drum, thus
Repeatedly bending is needed when wire drawing 14 is connected with drum brake, on the one hand repeatedly bending reduces the parking efficiency of wire drawing 14, separately
On the one hand its easily abrasion and fracture is caused.
The content of the invention
It is an object of the invention to provide a kind of drum brake and automobile, needed in drum-type with solving wire drawing in the prior art
The technical problem repeatedly bent in brake.
To achieve these goals, the present invention provides following technical scheme：
Two be oppositely arranged in a kind of drum brake, including substrate, the brake drum that is arranged on substrate and brake drum
Individual brake-shoe, also includes,
Arm-tie, is disposed with wire drawing connecting portion, rotating junction and the first drive division on the arm-tie, the wire drawing connects
Socket part and the rotating junction separate from the both sides of the substrate；
Push rod, one end of the push rod is rotated with the arm-tie by the rotating junction and is connected, the push rod it is another
One end is provided with the second drive division, when the wire drawing connecting portion under tension causes that the arm-tie is moved, described first
Drive division mutually leaves with second drive division；
Relative position respectively offers a through hole on two brake-shoes, and first drive division and described second drive
Dynamic portion is each positioned in a through hole.
Above-mentioned drum brake, is additionally provided with the clinch being connected with the wire drawing connecting portion on the arm-tie, described
Clinch is overlapped or with a gap with the substrate.
Above-mentioned drum brake, also including an elastic component, the two ends of the elastic component connect respectively the clinch and
The substrate.
Above-mentioned drum brake, the elastic component is spring, and the spring is buckled on the clinch by drag hook.
Above-mentioned drum brake, the arranged direction of the elastic component is with the wire drawing of automobile at the wire drawing connecting portion
Arranged direction is consistent.
Above-mentioned drum brake, second drive division is in the same plane with the arm-tie.
Above-mentioned drum brake, one end of the push rod abuts against with the brake-shoe.
A kind of automobile, including brake, the brake are above-mentioned drum brake.
In the above-mentioned technical solutions, the drum brake that the present invention is provided, is provided with arm-tie and push rod, the two ends point of arm-tie
The both sides of substrate are listed in, after one end of pull bar receives the pulling force of wire drawing so that the other end and push rod of pull bar are by leaving reality
Now to the driving of brake-shoe, and the braking to brake drum is realized by brake-shoe.In this way, be instead of by pull bar and push rod existing
Substrate and the wire drawing positioned inside brake drum are passed through in technology, the multiple bending of the part wire drawing is naturally also avoided.
Because above-mentioned drum brake has above-mentioned technique effect, the automobile comprising the drum brake should also have corresponding
Technique effect.
Brief description of the drawings
In order to illustrate more clearly of the embodiment of the present application or technical scheme of the prior art, below will be to institute in embodiment
The accompanying drawing for needing to use is briefly described, it should be apparent that, drawings in the following description are only described in the present invention
A little embodiments, for those of ordinary skill in the art, can also obtain other accompanying drawings according to these accompanying drawings.
Fig. 1 is the top view of drum brake in the prior art；
Fig. 2 is the front view of drum brake in the prior art；
Fig. 3 is the arm-tie and the structural representation of push rod described in the embodiment of the present invention；
Fig. 4 is the structural representation of drum brake provided in an embodiment of the present invention；
Fig. 5 is the use state figure of drum brake provided in an embodiment of the present invention；
Fig. 6 is the sectional view of drum brake provided in an embodiment of the present invention；
Fig. 7 is the structural representation of arm-tie provided in an embodiment of the present invention, push rod and brake-shoe.
Description of reference numerals：
Prior art：
11st, substrate；12nd, from hoof；13rd, drive link；14th, wire drawing；15th, hoof is led；151st, braking parts.
The present invention：
21st, substrate；22nd, wire drawing fixture；23rd, brake-shoe；24th, arm-tie；241st, wire drawing connecting portion；242nd, connection is rotated
Portion；243rd, the first drive division；244th, clinch；25th, push rod；251st, the second drive division；252nd, abutting part；253rd, kink；26、
Wire drawing；27th, through hole；28th, elastic component.
Specific embodiment
In order that those skilled in the art more fully understands technical scheme, below in conjunction with accompanying drawing to this hair
It is bright to be further detailed.
As shown in fig. 3 to 7, a kind of drum brake provided in an embodiment of the present invention, including substrate 21, it is arranged at substrate 21
On brake drum (not shown) and brake drum in two brake-shoes 23 being oppositely arranged, also including arm-tie 24 and push rod
25, wire drawing connecting portion 241, the drive division 243 of rotating junction 242 and first, wire drawing connecting portion 241 are disposed with arm-tie 24
With the both sides that rotating junction 242 separates from substrate 21；One end of push rod 25 is rotated with arm-tie 24 by rotating junction 242 and connected
Connect, the other end of push rod 25 is provided with the second drive division 251, when the under tension of wire drawing connecting portion 241 causes that arm-tie 24 is transported
When dynamic, the first drive division 243 mutually leaves with the second drive division 251；Relative position respectively offers one on two brake-shoes 23
Through hole 27, the first drive division 243 and the second drive division 251 are each positioned in a through hole 27.
For statement is convenient, the side that brake drum is provided with substrate 21 herein is called the inner side of substrate 21, with inner side phase
To opposite side be outside；Left and right side description herein by it is specific it is shown in the drawings on the basis of, rather than to the other limit of structure
It is fixed.
Specifically, arm-tie 24 runs through substrate 21, one end of arm-tie 24 is located at the outside of substrate 21, is set on the end of arm-tie 24
There is wire drawing connecting portion 241, wire drawing connecting portion 241 is used to connect braking wire drawing 26, and wire drawing connecting portion 241 can be fixing hole or solid
Dead axle, also refers to related wire drawing fixed structure of the prior art.The other end of arm-tie 24 is located at the inner side of substrate 21, arm-tie
24 ends are provided with the drive division 243 of rotating junction 242 and first, wherein, rotating junction 242 is located at wire drawing on arm-tie 24
Between the drive division 243 of connecting portion 241 and first, it is used to be connected with one end rotation of push rod 25, and rotating junction 242 can be
Rotary shaft or the hole for installing rotary shaft；First drive division 243 is used to connect with brake-shoe 23 in the motion process of arm-tie 24
Touch and apply pressure to it to drive brake-shoe 23.One end of push rod 25 is rotated with arm-tie 24 by rotating junction 242 and is connected,
The other end is the second drive division 251.In this way, as shown in Figures 3 and 4, wire drawing 26 is fixed on substrate 21 by wire drawing fixture 22,
Wire drawing 26 applies a pulling force to the left to the wire drawing connecting portion 241 of arm-tie 24, as arm-tie 24 and push rod 25 are rotating connection
Portion 242 relatively rotates for axle, and the first drive division 243 will mutually leave with the second drive division 251.
In the present embodiment, as shown in fig. 6, two brake-shoes 23 are oppositely arranged, a side on each braking brake drum, two
A through hole 27 is each provided with individual brake-shoe 23, two through holes 27 are oppositely arranged, the first drive division 243 and the second drive division
251 are each positioned in one of through hole 27, in normal state, have a gap between brake-shoe 23 and brake drum, as above institute
State, when arm-tie 24 is subject to the pulling force of braking wire drawing 26, the first drive division 243 mutually leaves with the second drive division 251, due to first
The drive division 251 of drive division 243 and second is located in two through holes 27 of brake-shoe 23 respectively, and the first drive division 243 and second drives
Leaving for dynamic portion 251 will drive two brake-shoes 23 to be moved towards opposite direction, in this way, brake-shoe 23 will stick brake drum with
Braked.
In the present embodiment, in braking procedure, what arm-tie 24 and push rod 25 were actually carried out is compound fortune that is mobile and rotating
It is dynamic, because the difference and the difference of the pulling force size of wire drawing 26 of arm-tie 24, the size of push rod 25, it is possible to which the first drive division 243 is first
Drive brake-shoe 23, it is also possible to which the second drive division 251 first drives brake-shoe 23, but ensures the second drive division 251 when need to only design
And first the gap size left between size and brake-shoe 23 and brake drum of drive division 243 can be engaged, both leave
Necessarily ensure that two brake-shoes 23 all stick brake drum.
The drum brake that the present embodiment is provided, is provided with arm-tie 24 and push rod 25, and the two ends of arm-tie 24 are respectively in substrate
21 both sides, after one end of pull bar receives the pulling force of wire drawing 26 so that the other end and push rod 25 of pull bar are realized to brake-shoe
23 driving, and finally realize braking of the brake-shoe 23 to brake drum.In this way, instead of prior art by pull bar and push rod 25
In pass through substrate 21 and the wire drawing 26 positioned inside brake drum part, naturally also avoid the multiple curved of the part wire drawing 26
It is bent.
Arm-tie 24 in the present embodiment is preferably sheet material, it is clear that, or rod member, push rod 25 is preferably rod member,
Can also be sheet material.
In the present embodiment, the first drive division 243 and the second drive division 251 are preferably gap with the through hole 27 on brake-shoe 23
Coordinate, in order to the installation of arm-tie 24 and push rod 25, but simultaneously, the first drive division 243 and the second drive division 251 are preferably connected to
The side nearest away from brake drum on the hole wall of through hole 27, i.e. the first drive division 243 and the second drive division 251 and the eccentric peace of through hole 27
Dress, such as in figure 6, right side and the right side hole wall of through hole 27 on right side brake hoof 23 of the first drive division 243 are abutted against, and second drives
The left side in dynamic portion 251 abuts against with the left side hole wall of through hole 27 on left hand brake hoof 23, and the stroke for braking wire drawing 26 is limited, two
Once drive division abuts against guarantee wire drawing 26 and brakes with the hole wall of through hole 27, drive division can immediately drive brake-shoe 23, it is ensured that system
Efficiency of movement it is efficient.
In the present embodiment, as shown in Figures 3 and 4, further, it is additionally provided with arm-tie 24 and is connected with wire drawing connecting portion 241
Clinch 244, clinch 244 and substrate 21 are overlapped or with a gap.The effect of clinch 244 is, when arm-tie 24 is received
During to 26 pulling force of wire drawing, clinch 244 can be snapped on substrate 21, thus can moving down and move to left generation resistance to arm-tie 24,
So that arm-tie 24 first rotates so that the first drive division 243 first drives right side brake hoof 23, when the top system of right side brake hoof 23
When dynamic drum cannot continue to move right, arm-tie 24 continues under tension just can to the left be translated the second drive division 251 of drive to drive
Right side brake hoof 23, the effect of clinch 244 is so that the motion process of arm-tie 24 and push rod 25 becomes clear from, to reduce not true
It is qualitative.
It is very close to each other between clinch 244 and substrate 21 as most preferred, that is, it is overlapped on substrate 21, so in vapour
The probability that clinch 244 clashes into substrate 21 because of vibrations is reduced in car motion process, the low noise in driving conditions is kept.
In the present embodiment, further, as shown in figure 4, also including an elastic component 28, the two ends of elastic component 28 connect respectively
Connect clinch 244 and substrate 21.The effect of elastic component 28 is to help after end of braking arm-tie 24 and push rod 25 to reset.As excellent
Choosing, elastic component 28 is spring, and spring is buckled on clinch 244 by drag hook, perforate on clinch 244, and spring passes through pull bar
Hook is so easily installed in the hole.
As it is furthermore preferred that the arrangement of the arranged direction of elastic component 28 and the wire drawing 26 of automobile at wire drawing connecting portion 241
Direction is consistent.So maximally utilize the elastic force of elastic component 28.
In the present embodiment, it is preferred that the second drive division 251 is in the same plane with arm-tie 24.As shown in figure 3, push rod
25 ensure that the second drive division 251 is in the same plane with arm-tie 24 by a kink 253, now, the second drive division 251
Only by the driving force of the left-hand of arm-tie 24, it is ensured that the Impact direction of the Impact direction of the second drive division 251 and the first drive division 243
It is located along the same line, it is ensured that the efficiency of power, and being located on different straight lines can produce a shearing force.
The present embodiment, it is preferred that as shown in fig. 6, one end of push rod 25 is abutting part 252, abutting part 252 and brake-shoe 23
Abut against, abut positioning when being on the one hand easy to assembling, brake-shoe 23 can be applied when arm-tie 24 is moved on the other hand to make
Power, power-assisted the first drive division 243 and the second drive division 251.Right side in Fig. 6 for push rod 25 abuts against with brake-shoe 23, shows
Right, the left side of push rod 25 can also abut against with brake-shoe 23.
The present embodiment also provides a kind of automobile, including brake, and brake is above-mentioned drum brake.
Because above-mentioned drum brake has above-mentioned technique effect, the automobile comprising the drum brake should also have corresponding
Technique effect.
It is apparent that in addition to automobile, the drum brake that the present embodiment is provided applies also for other vehicles.
Some one exemplary embodiments of the invention only are described by way of explanation above, undoubtedly, for ability
The those of ordinary skill in domain, without departing from the spirit and scope of the present invention, can be with a variety of modes to institute
The embodiment of description is modified.Therefore, above-mentioned accompanying drawing and description are inherently illustrative, should not be construed as to the present invention
The limitation of claims.
Claims (8)
1. a kind of drum brake, including substrate, the brake drum being arranged on substrate and be oppositely arranged in brake drum two
Brake-shoe, it is characterised in that also include,
Arm-tie, is disposed with wire drawing connecting portion, rotating junction and the first drive division, the wire drawing connecting portion on the arm-tie
With the both sides that the rotating junction separates from the substrate；
Push rod, one end of the push rod is rotated with the arm-tie by the rotating junction and is connected, the other end of the push rod
The second drive division is provided with, when the wire drawing connecting portion under tension causes that the arm-tie is moved, described first drives
Portion mutually leaves with second drive division；
Relative position respectively offers a through hole, first drive division and second drive division on two brake-shoes
It is each positioned in a through hole.
2. drum brake according to claim 1, it is characterised in that be additionally provided with the arm-tie and the wire drawing connects
The connected clinch of socket part, the clinch is overlapped or with a gap with the substrate.
3. drum brake according to claim 2, it is characterised in that also including an elastic component, the two of the elastic component
End connects the clinch and the substrate respectively.
4. drum brake according to claim 3, it is characterised in that the elastic component is spring, the spring passes through
Drag hook is buckled on the clinch.
5. drum brake according to claim 3, it is characterised in that the arranged direction of the elastic component and the drawing of automobile
Arranged direction of the silk at the wire drawing connecting portion is consistent.
6. the drum brake according to claim any one of 1-5, it is characterised in that second drive division and the drawing
Plate is in the same plane.
7. the drum brake according to claim any one of 1-5, it is characterised in that one end of the push rod and the system
Dynamic hoof is abutted against.
8. a kind of automobile, including brake, it is characterised in that the brake is the drum-type described in claim any one of 1-7
Brake.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410738244.XA CN104455090B (en) | 2014-12-05 | 2014-12-05 | Drum brake and car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410738244.XA CN104455090B (en) | 2014-12-05 | 2014-12-05 | Drum brake and car |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104455090A CN104455090A (en) | 2015-03-25 |
| CN104455090B true CN104455090B (en) | 2017-05-17 |
Family
ID=52901648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410738244.XA Active CN104455090B (en) | 2014-12-05 | 2014-12-05 | Drum brake and car |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104455090B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1199191A (en) * | 1967-03-21 | 1970-07-15 | Girling Ltd | Improvements in or relating to Vehicle Brakes |
| GB1247245A (en) * | 1969-03-01 | 1971-09-22 | Girling Ltd | Improvements in back stops for internal shoe drum brakes and to internal shoe drum brakes incorporating such back stops |
| IT207806Z2 (en) * | 1986-06-06 | 1988-02-15 | Fiat Auto Spa | MECHANICAL DRIVE BRAKE CONTROL DEVICE FOR VEHICLES |
| CA1306204C (en) * | 1987-11-04 | 1992-08-11 | Ronald L. Shellhause | Blind assembly of parking brake cable to parking brake lever |
| US5092428A (en) * | 1989-07-21 | 1992-03-03 | Tokico Ltd. | Drum brake |
| CN204267560U (en) * | 2014-12-05 | 2015-04-15 | 安徽江淮汽车股份有限公司 | Drum brake and automobile |
-
2014
- 2014-12-05 CN CN201410738244.XA patent/CN104455090B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104455090A (en) | 2015-03-25 |
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| C06 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Applicant after: Anhui Jianghuai Automobile Group Limited by Share Ltd Address before: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Applicant before: Anhui Jianghuai Automotive Co., Ltd. |
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| COR | Change of bibliographic data | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |