CN104595393B - Presplitting formula brake drum - Google Patents
Presplitting formula brake drum Download PDFInfo
- Publication number
- CN104595393B CN104595393B CN201510016496.6A CN201510016496A CN104595393B CN 104595393 B CN104595393 B CN 104595393B CN 201510016496 A CN201510016496 A CN 201510016496A CN 104595393 B CN104595393 B CN 104595393B
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- China
- Prior art keywords
- brake drum
- crack
- braking parts
- connection portion
- transition connection
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- 230000007704 transition Effects 0.000 claims abstract description 39
- 238000005266 casting Methods 0.000 claims abstract description 8
- 238000005516 engineering process Methods 0.000 claims description 10
- 230000003014 reinforcing effect Effects 0.000 claims description 9
- 238000000465 moulding Methods 0.000 claims description 4
- 238000004080 punching Methods 0.000 claims description 4
- 238000005520 cutting process Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 7
- 229920001971 elastomer Polymers 0.000 abstract description 3
- 239000000806 elastomer Substances 0.000 abstract description 3
- 230000008961 swelling Effects 0.000 abstract description 3
- 238000005336 cracking Methods 0.000 description 6
- 230000035882 stress Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229910001060 Gray iron Inorganic materials 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000008646 thermal stress Effects 0.000 description 2
- 241000406668 Loxodonta cyclotis Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
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- Braking Arrangements (AREA)
Abstract
The invention discloses the brake drum body of a kind of presplitting formula brake drum, including casting, brake drum body includes mounting portion and braking parts, transition connection portion is equipped between mounting portion and braking parts；Braking parts are equipped with to be extended in transition connection portion through the crack of braking parts wall thickness, crack from one end end away from transition connection portion；The periphery of braking parts is set with some axial alignments and the stirrup being interference fitted with braking parts.Brake drum body is split in advance by crack and forms an elastomer, improves stressed effect, enhances slow resistance impact force；Brake drum body is subjected only to spin friction brake weight at the same time；When brake drum body is heated and powerful expanding force acts on, crack can eliminate swelling stress in time, reduce crack phenomenon.Brake expanding force is born by stirrup, enhances the tensile strength and resistance rigidity of the brake drum.Structural strength and mechanical performance are improved using the brake drum, extend the service life of brake drum, thermal diffusivity is good, safe to use.
Description
Technical field
The invention belongs to brake system of car technical field, more particularly to presplitting formula brake drum.
Background technology
Braking system is one of important composition system of automobile, at present, widely used in truck field
It is to use traditional monoblock cast drum brake.
At this stage, typical drum brake includes brake drum and shoe brake forms, and shoe brake can be with brake drum
Medial surface contact.Brake drum is in rotary state in vehicle traveling process, and when needing brake, shoe brake is in brake force
Under the action of press on brake drum, using the frictional resistance between brake drum so that the car deceleration of traveling or parking,
To ensure traffic safety.
When automobile heavy-load, run at high speed when, especially in lower long slope or abrupt slope, due to need larger brake force and
The braking of continuous several times is to ensure that automobile is in controllable state so that brake drum inner wall temperature drastically raises, brake drum it is inside and outside
The temperature difference increases, and the mechanical behavior under high temperature for causing to form brake drum material drastically declines, and fatigue strength reduces.Due to traditional braking
Drum material is gray cast iron, and gray cast iron has the typical characteristics that intensity is low, brittleness is big, negative caused by these characteristics in order to reduce
Influence, the wall thickness of brake drum must be made very thick, to ensure that brake drum has higher structural strength.But the wall thickness of brake drum
Bigger, internal-external temperature difference when brake drum is braked is bigger, and thermal (temperature difference) stress caused by temperature difference increasing adds the high-temperature mechanics of material
It can deteriorate, meanwhile, swelling stress caused by brake drum braking cannot eliminate in time, and then cause brake drum inner wall by longitudinal direction
Fine fisssure develops into cracking, so that last brake drum cracking.Therefore, the brake drum service life of traditional monoblock cast is shorter.
The content of the invention
It is an object of the invention to provide a kind of presplitting formula brake drum, realizes and eliminates swelling stress in time, and it is existing to reduce cracking
The generation of elephant, achievees the purpose that to improve service life.
In order to solve the above technical problems, the technical scheme is that：Presplitting formula brake drum, includes the braking of casting
Drum body, the brake drum body include the mounting portion for being connected with wheel and the braking parts for coordinating with shoe brake,
Transition connection portion is equipped between the mounting portion and the braking parts；
The braking parts are equipped with through the crack of the braking parts wall thickness, and the crack is from away from the transition connection portion
One end end extend in the transition connection portion；
The crack circular array shows several, and the transition connection portion is equipped with several through holes, the through hole and institute
Crack is stated to correspond setting and be interconnected；
The crack is stamping forming linear crack, the braking parts and the mistake with the crack correspondence position
Crossing casting on connecting portion has the technology groove for being convenient for punching press, and the technology groove is connected with the through hole；Or described split
Stitch as the molding zigzag crevasse of wire cutting or waveform crack；
The periphery of the braking parts is set with some axial alignments and the stirrup being interference fitted with the braking parts；
The stirrup includes the first hoop body of axial alignment, away from described transition connection portion one end the braking parts on and
The second hoop body is equipped between adjacent two first hoop bodies；The outer ring of first hoop body is equipped with and first hoop body
The consistent annular groove of extending direction；
The width of first hoop body is more than the width of second hoop body；The outside diameter of first hoop body is less than described the
The outside diameter of two hoop bodies.
Wherein, outside diameter of the transition connection portion close to described braking parts one end is more than the outside diameter of the braking parts, described
First hoop body is acted against in the transition connection portion.
Wherein, circular array shows some reinforcing ribs in the transition connection portion.
After employing above-mentioned technical proposal, the beneficial effects of the invention are as follows：
Since end of the braking parts equipped with certainly remote transition connection portion one end extends to the crack of transition connection portion, i.e.,：
Brake drum body is split in advance and forms an elastomer, not only improves stressed effect, but also enhances the characteristic of slow resistance impact force；
Meanwhile brake drum body is not subjected to brake expanding force, is subjected only to spin friction brake weight；Moreover, the braking with traditional structure
Drum is compared, and brake drum body is (i.e.：Braking parts) heated and powerful expanding force effect when, crack can eliminate expansion in time should
Power, table axial direction crack phenomenon substantially reduces in brake drum body, and unrestricted growth conditions is not present in cracking；In addition, by splitting
Seam to brake drum body, in braking, conduct and release is laid a good foundation by caused thermal stress.Due to the peripheral interference of braking parts
The stirrup being combined with, so as to bear main big load (i.e. by stirrup：Brake expanding force)；Meanwhile enhance the brake drum
Tensile strength and resistance rigidity, stress and resistance is become more reasonable.In conclusion structure is improved using the brake drum
Intensity and mechanical performance, effectively extend the service life of brake drum, and thermal diffusivity is good, safe to use.
Since through hole and crack are interconnected, so as to carry out power of the peptizaiton at brake drum body cracking by through hole
Square, avoids stress concentration and damages brake drum body.
It is simple in structure since crack is linear crack, it is easy to process.
Since casting has technology groove in the braking parts and transition connection portion with crack correspondence position, so as to pass through technique
Groove is convenient for punching press crack, ensure that the molding linearity of punching precision and crack.
Since crack is zigzag crevasse, locate to have well so as to ensure that brake drum body splits by zigzag crevasse
Conformability.
Since stirrup includes the first hoop body and the second hoop body, and the first hoop body is equipped with annular groove, so as to pass through first
Hoop body substantially increases the heat dissipation effect of the structure brake drum, while coordinates with the second hoop body and improve structural strength and carrying energy
Power.
Since the width of the first hoop body is more than the width of the second hoop body, so as to further increase heat dissipation effect；Due to
The outside diameter of one hoop body is less than the outside diameter of the second hoop body, so as to further increase structural strength and bearing capacity.
Since circular array shows some reinforcing ribs in transition connection portion, so as to further increase brake drum by reinforcing rib
The structural strength of body.
Brief description of the drawings
Fig. 1 is the structure diagram of the embodiment of the present invention one；
Fig. 2 is the left view of Fig. 1；
Fig. 3 is the sectional view of A-A in Fig. 1；
Fig. 4 is the structure diagram of the embodiment of the present invention two；
Fig. 5 is the left view of Fig. 4；
Fig. 6 is the sectional view of B-B in Fig. 4；
Fig. 7 is the structure diagram of the embodiment of the present invention three；
Fig. 8 is the left view of Fig. 7；
Fig. 9 is the sectional view of C-C in Fig. 7；
In figure, 1- brake drum bodies；101- mounting portions；102- transition connection portions；103- braking parts；104- technology grooves；2-
Crack；3- through holes；The first hoop bodies of 4-；401- annular grooves；The second hoop bodies of 5-；6- reinforcing ribs.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, it is right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Embodiment one：
As Fig. 1 to Fig. 3 is jointly shown, presplitting formula brake drum includes the brake drum body 1 of casting, the brake drum body
1 to include being used for the mounting portion 101 that is connected with wheel and the braking parts 103 for shoe brake coordinating, the mounting portion 101 be method
Blue disk；Transition connection portion 102 is equipped between the mounting portion 101 and braking parts 103, the transition connection portion 102 is close to braking parts 103
The outside diameter of one end is more than the outside diameter of braking parts 103；
Circular array shows the crack 2 that several run through 103 wall thickness of braking parts in the braking parts 103, and the crack 2 is from away from mistake
One end end for crossing connecting portion 102 is extended in transition connection portion 102, the transition connection portion 102 with every 2 correspondence position of crack
On be equipped with a through hole 3, which connects with crack 2；
The periphery of the braking parts 103 is set with some axial alignments and the stirrup being interference fitted with braking parts 103.
There is the work connected with through hole 3 with casting in the braking parts 103 and transition connection portion 102 of 2 correspondence position of crack
Skill groove 104, the crack 2 are to pass through stamping forming linear crack in technology groove 104.
The stirrup includes the first hoop body 4 of axial alignment, and the outer ring of first hoop body 4 is equipped with to be extended with the first hoop body 4
The consistent annular groove 401 in direction is (i.e.：The cross sectional shape of first hoop body 4 is U-shaped), close to the first hoop of transition connection portion 102
Body 4 is acted against in transition connection portion 102；In braking parts 103 away from 102 one end of transition connection portion and positioned at adjacent two first hoops
The second hoop body 5 is equipped between body 4, is specially：From having three the first hoop bodies 4 with axial alignment 102 place of abutting against of transition connection portion,
Spaced three pair of second hoop body, 5 and first hoop body 4 is arranged with afterwards, and the second all hoop bodies 5 and the first hoop body 4 are mutually
Abut against.
The width of first hoop body 4 is more than the width of the second hoop body 5；The outside diameter of first hoop body 4 is less than the second hoop body 5
Outside diameter；Wherein, the first hoop body 4 abutted against with transition connection portion 102, the outside diameter for abutting against side are less than the outside diameter of opposite side.So that
Under conditions of meeting assembly technology, thermal diffusivity is improved, and structural strength is high, large carrying capacity.
Circular array shows some reinforcing ribs 6 in the transition connection portion 102.
Embodiment two：
As Fig. 4 to Fig. 6 is jointly shown, the concrete structure of the present embodiment is identical with the structure of embodiment one, its difference lies in：
Technology groove 104 is not provided with 2 corresponding position of crack, which is the molding zigzag crevasse of wire cutting, the zigzag crevasse
Both ends extend in a linear fashion respectively, and the end of braking parts 103 is run through in one end, and the other end is connected with through hole 3.
The crack 2 can also be waveform crack, or can realize as those skilled in the art and not influence the system
The crack of the other forms of dynamic drum normal work.
Embodiment three：
As Fig. 7 to Fig. 9 is jointly shown, the concrete structure of the present embodiment is identical with the structure of embodiment two, its difference lies in：
Reinforcing rib 6 is not provided with transition connection portion 102.
Similarly, it is the preferred of this programme that reinforcing rib 6 is set in the transition connection portion 102 in embodiment one, can not also be set
Put reinforcing rib 6.
In practical applications, the crack 2 of transition connection portion 102 is extended to since braking parts 103 are equipped with, i.e.,：Will braking
Drum body 1 splits in advance and forms an elastomer, not only improves stressed effect, but also enhances the characteristic of slow resistance impact force；Meanwhile
Brake drum body 1 is not subjected to brake expanding force, is subjected only to spin friction brake weight；Moreover, the brake drum phase with traditional structure
Than brake drum body 1 is (i.e.：Braking parts 103) heated and powerful expanding force effect when, crack 2 can eliminate expansion in time should
Power, table axial direction crack phenomenon substantially reduces in brake drum body 1, and unrestricted growth conditions is not present in cracking；In addition, by splitting
2 pairs of brake drum bodies 1 of seam caused thermal stress conduction and release in braking are laid a good foundation.Outside due to braking parts 103
The stirrup that interference fit has is enclosed, so as to bear main big load (i.e. by stirrup：Brake expanding force)；Meanwhile enhance this
The tensile strength and resistance rigidity of brake drum, make stress and resistance become more reasonable.In conclusion improved using the brake drum
Structural strength and mechanical performance, effectively extend the service life of brake drum, and thermal diffusivity is good, safe to use.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement made within refreshing and principle etc., should all be included in the protection scope of the present invention.
Claims (3)
1. presplitting formula brake drum, includes the brake drum body of casting, it is characterised in that the brake drum body includes being used for
The mounting portion being connected with wheel and the braking parts for coordinating with shoe brake, are equipped between the mounting portion and the braking parts
Transition connection portion；
The braking parts be equipped with through the braking parts wall thickness crack, the crack from away from the transition connection portion one
End end is extended in the transition connection portion；
The crack circular array shows several, and the transition connection portion is equipped with several through holes, and the through hole is split with described
Seam, which corresponds, to be set and is interconnected；
The crack is stamping forming linear crack, is connected with the braking parts of the crack correspondence position and the transition
Casting has the technology groove for being convenient for punching press in socket part, and the technology groove is connected with the through hole；Or the crack is
The molding zigzag crevasse of wire cutting or waveform crack；
The periphery of the braking parts is set with some axial alignments and the stirrup being interference fitted with the braking parts；
The stirrup includes the first hoop body of axial alignment, in the braking parts away from described transition connection portion one end and is located at
The second hoop body is equipped between adjacent two first hoop body；The outer ring of first hoop body is equipped with to be extended with first hoop body
The consistent annular groove in direction；
The width of first hoop body is more than the width of second hoop body；The outside diameter of first hoop body is less than the described second hoop
The outside diameter of body.
2. presplitting formula brake drum according to claim 1, it is characterised in that the transition connection portion is close to the braking parts
The outside diameter of one end is more than the outside diameter of the braking parts, and first hoop body is acted against in the transition connection portion.
3. presplitting formula brake drum according to claim 1, it is characterised in that if circular array is shown in the transition connection portion
Dry reinforcing rib.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510016496.6A CN104595393B (en) | 2015-01-13 | 2015-01-13 | Presplitting formula brake drum |
| PCT/CN2015/078529 WO2016112604A1 (en) | 2015-01-13 | 2015-05-08 | Brake drum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510016496.6A CN104595393B (en) | 2015-01-13 | 2015-01-13 | Presplitting formula brake drum |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104595393A CN104595393A (en) | 2015-05-06 |
| CN104595393B true CN104595393B (en) | 2018-05-04 |
Family
ID=53121361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510016496.6A Active CN104595393B (en) | 2015-01-13 | 2015-01-13 | Presplitting formula brake drum |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104595393B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016033991A1 (en) * | 2014-09-01 | 2016-03-10 | 山东浩信机械有限公司 | Brake drum |
| WO2016112604A1 (en) * | 2015-01-13 | 2016-07-21 | 山东浩信机械有限公司 | Brake drum |
| CN105351403B (en) * | 2015-11-26 | 2017-09-15 | 成都九十度工业产品设计有限公司 | A kind of heat dissipation type high brake drum |
| CN105736609B (en) * | 2016-05-04 | 2017-11-07 | 山东浩信机械有限公司 | A kind of brake drum |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2820189A1 (en) * | 1978-05-09 | 1979-11-22 | Teves Gmbh Alfred | Thermally compensated brake drum - has inwardly inclined brake surface which deflects to bend outwardly on warming |
| CN201050565Y (en) * | 2007-06-12 | 2008-04-23 | 王华才 | Braking hub with outer tensile ring |
| CN204082998U (en) * | 2014-09-12 | 2015-01-07 | 山东浩信机械有限公司 | Ring muscle brake drum |
| CN204082997U (en) * | 2014-09-01 | 2015-01-07 | 山东浩信机械有限公司 | Annular groove steel loop brake drum |
| CN204458928U (en) * | 2015-01-13 | 2015-07-08 | 山东浩信机械有限公司 | Presplitting formula brake drum |
-
2015
- 2015-01-13 CN CN201510016496.6A patent/CN104595393B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2820189A1 (en) * | 1978-05-09 | 1979-11-22 | Teves Gmbh Alfred | Thermally compensated brake drum - has inwardly inclined brake surface which deflects to bend outwardly on warming |
| CN201050565Y (en) * | 2007-06-12 | 2008-04-23 | 王华才 | Braking hub with outer tensile ring |
| CN204082997U (en) * | 2014-09-01 | 2015-01-07 | 山东浩信机械有限公司 | Annular groove steel loop brake drum |
| CN204082998U (en) * | 2014-09-12 | 2015-01-07 | 山东浩信机械有限公司 | Ring muscle brake drum |
| CN204458928U (en) * | 2015-01-13 | 2015-07-08 | 山东浩信机械有限公司 | Presplitting formula brake drum |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104595393A (en) | 2015-05-06 |
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Legal Events
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|---|---|---|---|
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Presplitting brake drum Effective date of registration: 20211022 Granted publication date: 20180504 Pledgee: China Construction Bank Corporation Changyi sub branch Pledgor: SHANDONG HAOXIN MACHINERY Co.,Ltd. Registration number: Y2021980011149 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230103 Granted publication date: 20180504 Pledgee: China Construction Bank Corporation Changyi sub branch Pledgor: SHANDONG HAOXIN MACHINERY Co.,Ltd. Registration number: Y2021980011149 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| CP03 | Change of name, title or address |
Address after: 261307 south head of Weizi Town, Changyi City, Weifang City, Shandong Province Patentee after: Shandong Haoxin Machinery Co.,Ltd. Country or region after: China Address before: 261307 Hao Xin Industrial Park, Weizi Town, Changyi City, Weifang, Shandong Patentee before: SHANDONG HAOXIN MACHINERY Co.,Ltd. Country or region before: China |
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| CP03 | Change of name, title or address |