CN108204415A - Drum type brake for car - Google Patents
Drum type brake for car Download PDFInfo
- Publication number
- CN108204415A CN108204415A CN201611187704.XA CN201611187704A CN108204415A CN 108204415 A CN108204415 A CN 108204415A CN 201611187704 A CN201611187704 A CN 201611187704A CN 108204415 A CN108204415 A CN 108204415A
- Authority
- CN
- China
- Prior art keywords
- friction cylinder
- spiral
- annular groove
- friction
- peripheral surface
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- 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
- F16D51/00—Brakes with outwardly-movable braking members co-operating with the inner surface of a drum or the like
-
- 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
- F16D65/02—Braking members; Mounting thereof
-
- 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
- F16D65/78—Features relating to cooling
- F16D65/82—Features relating to cooling for internally-engaging brakes
- F16D65/827—Features relating to cooling for internally-engaging brakes with open cooling system, e.g. cooled by air
-
- 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
- F16D51/00—Brakes with outwardly-movable braking members co-operating with the inner surface of a drum or the like
- F16D2051/001—Parts or details of drum brakes
Abstract
The invention discloses a kind of drum type brake for car, including drum shell and friction cylinder, the friction cylinder is located in accommodating cavity, spiral helicine spiral annular groove is opened up on the peripheral surface of the friction cylinder, the spiral annular groove extends around the axis of the friction cylinder, and the inner surface of the spiral annular groove includes upper side, the downside below the upper side and the arc-shaped bottom surface between the upper side and the downside；Brass tube of the spiral surrounding on the friction cylinder is further included, the brass tube is located in spiral annular groove, and the brass tube is contacted with arc-shaped bottom surface；The brass heat dissipating ring for being fixed on the bulging shell outer surface is further included, one end of the brass tube is connect through the bulging shell with the brass heat dissipating ring；The compensating tank that multiple sliver transvers sections are triangle is uniformly provided on the peripheral surface of the friction cylinder.Friction cylinder is set, and in braking, hoof block rubs with friction cylinder, is worn so as to avoid rousing shell.
Description
Technical field
The present invention relates to a kind of brake apparatus.
Background technology
The processing of part is relatively simple with composition, installation is easy, there play the role of automatic brake to be tight etc. due to having for drum brakes
Advantage is widely used on vehicle.Drum brakes mainly includes drum shell and the hoof block being set in bulging shell.In braking, hoof
Block is with drum shell inner surface friction so as to fulfill the purpose of braking.But it since the friction between hoof block and drum shell is very violent, leads
Drum shell is caused easily to wear.Bulging shell is needed replacing after drum shell abrasion, cost is higher.
Invention content
The purpose of the present invention is to overcome the deficiencies of the prior art and provide a kind of drum type brake for car.
The purpose of the present invention is achieved through the following technical solutions：
Drum type brake for car, including：
Inside has the drum shell of cylindric accommodating cavity；
Cylindric friction cylinder, the friction cylinder are located in accommodating cavity, the peripheral surface of the friction cylinder and the accommodating cavity
Inner peripheral surface be fixedly connected, open up spiral helicine spiral annular groove on the peripheral surface of the friction cylinder, the spiral annular groove surrounds institute
State the axis extension of friction cylinder, the inner surface of the spiral annular groove include upper side, the downside below the upper side,
And the arc-shaped bottom surface between the upper side and the downside；
Brass tube of the spiral surrounding on the friction cylinder is further included, the brass tube is located in spiral annular groove, the brass tube
It is contacted with arc-shaped bottom surface；
Further include the brass heat dissipating ring for being fixed on the bulging shell outer surface, one end of the brass tube through the bulging shell with it is described
Brass heat dissipating ring connects；
The compensating tank that multiple sliver transvers sections are triangle, the compensating tank and institute are uniformly provided on the peripheral surface of the friction cylinder
The axis for stating friction cylinder is parallel, and the both ends of the compensating tank are located at the upper and lower side end face of the friction cylinder respectively.
Friction cylinder is set, and in braking, hoof block rubs with friction cylinder, is worn so as to avoid rousing shell.In friction cylinder
It is worn after braking ability is caused to decline, it is only necessary to replace friction cylinder, avoid of high cost asking of replacing that drum shell brings
Topic, greatly reduces use cost.
Additionally, it is provided better heat dissipation performance, opens up spiral annular groove on the peripheral surface of friction cylinder.Relative to by helical ring
Slot is opened in the inner peripheral surface of friction cylinder, and spiral annular groove is opened in the peripheral surface of friction cylinder, can effectively avoid hoof block and friction
During the inner peripheral surface friction of cylinder, the inner circumferential surface intensity of friction cylinder is low, and friction area reduction causes to brake hypodynamic problem.Meanwhile
Spiral annular groove is opened in the peripheral surface of friction cylinder, heat is more advantageous to and distributes, heat is avoided to assemble inside friction cylinder.It opens up
Spiral helicine spiral annular groove is conducive to the circulation in the heat of the various pieces generation of friction cylinder so that heat can rub
It is uniformly distributed on cylinder, avoids the localized clusters of heat.
Spiral annular groove includes arc-shaped bottom surface, thus avoids the stress concentration in spiral annular groove inner surface, further protects
The structural strength of friction cylinder is demonstrate,proved.
Setting brass tube and brass heat dissipating ring, brass tube directly conduct the heat in friction cylinder to brass heat dissipating ring, lead to
It crosses brass heat dissipating ring to distribute heat, further improves radiating efficiency.
Friction cylinder expands with heat and contract with cold, and friction cylinder may be caused to lose circle so that and there is exception in the friction between hoof block and friction cylinder,
Braking ability declines.For this purpose, opening up compensating tank, the volume change when friction cylinder expands with heat and contract with cold for friction cylinder provides space, keeps away
Exempt from friction cylinder caused by friction cylinder interior tissue mutually squeezes and lose circle, to provide stable braking ability.
Further, it is fallen between the upper and lower side end face of the friction cylinder and the inner peripheral surface of the friction cylinder by the first circular arc
Angle transition connection.
First circular arc chamfering is set, avoid friction cylinder in hoof block friction process, friction cylinder upper and lower side end face with friction
Stress concentration between the inner peripheral surface of cylinder, effectively prevent the situation that friction cylinder is cracking, improves the service life of friction cylinder
And reliability.
Further, it is fallen between the upper and lower side end face of the friction cylinder and the peripheral surface of the friction cylinder by the second circular arc
Angle transition connection.
Second circular arc chamfering is set, avoid friction cylinder in hoof block friction process, friction cylinder upper and lower side end face with friction
Stress concentration between the inner peripheral surface of cylinder, effectively prevent the situation that friction cylinder is cracking, improves the service life of friction cylinder
And reliability.
Further, the inner peripheral surface of the accommodating cavity is inwardly protruding forms spiral insertion corresponding with the spiral annular groove
Ring, the spiral embedded rings are embedded in the spiral annular groove, the arc-shaped bottom surface of the spiral embedded rings and the spiral annular groove
Between there are gaps, the spiral embedded rings to be contacted with the upper side and the downside.
Spiral embedded rings are set, and spiral embedded rings are contacted with upper side and downside, so as to higher efficiency by spiral
Heat in annular groove is conducted to drum shell, improves heat dissipation performance.It is deposited between spiral embedded rings and the arc-shaped bottom surface of spiral annular groove
In gap, space is provided for heat flowing, heat is enable to be uniformly distributed in heat-radiating ring-groove, improves heat dissipation uniformity, is kept away
Exempt from the localized clusters of heat.
In conclusion the advantages of the present invention are：
1. setting friction cylinder, in braking, hoof block rubs with friction cylinder, is worn so as to avoid rousing shell.In friction cylinder quilt
Abrasion cause braking ability decline after, it is only necessary to replace friction cylinder, avoid replace drum shell bring it is of high cost the problem of,
Greatly reduce use cost.
2. opening up spiral annular groove on the peripheral surface of friction cylinder, better heat dissipation performance is provided.
3. relative to the inner peripheral surface that spiral annular groove is opened in friction cylinder, spiral annular groove is opened in the periphery of friction cylinder
Face, when can effectively avoid the friction of the inner peripheral surface of hoof block and friction cylinder, the inner circumferential surface intensity of friction cylinder is low, and friction area reduction is led
It causes to brake hypodynamic problem.Meanwhile spiral annular groove is opened in the peripheral surface of friction cylinder, it is more advantageous to heat and distributes, avoid
Heat is assembled inside friction cylinder.
4. opening up spiral helicine spiral annular groove, be conducive to the circulation in the heat of the various pieces generation of friction cylinder so that
Heat can be uniformly distributed on friction cylinder, avoid the localized clusters of heat.
5. spiral annular groove includes arc-shaped bottom surface, the stress concentration in spiral annular groove inner surface is thus avoided, further
It ensure that the structural strength of friction cylinder.
6. setting brass tube and brass heat dissipating ring, brass tube directly conduct the heat in friction cylinder to brass heat dissipating ring,
Heat is distributed by brass heat dissipating ring, further improves radiating efficiency.
7. opening up compensating tank, the volume change when friction cylinder expands with heat and contract with cold for friction cylinder provides space, avoids friction cylinder
Friction cylinder loses circle caused by interior tissue mutually squeezes, to provide stable braking ability.
8. set the first circular arc chamfering, avoid friction cylinder in hoof block friction process, friction cylinder upper and lower side end face is with rubbing
The stress concentration between the inner peripheral surface of cylinder is wiped, effectively prevent the situation that friction cylinder is cracking, improve friction cylinder uses the longevity
Life and reliability.
9. set the second circular arc chamfering, avoid friction cylinder in hoof block friction process, friction cylinder upper and lower side end face is with rubbing
The stress concentration between the inner peripheral surface of cylinder is wiped, effectively prevent the situation that friction cylinder is cracking, improve friction cylinder uses the longevity
Life and reliability.
10. setting spiral embedded rings, spiral embedded rings are contacted with upper side and downside, so as to higher efficiency by spiral shell
Heat in rotation annular groove is conducted to drum shell, improves heat dissipation performance.Between spiral embedded rings and the arc-shaped bottom surface of spiral annular groove
There are gaps, provide space for heat flowing, heat is enable to be uniformly distributed in heat-radiating ring-groove, improves heat dissipation uniformity,
Avoid the localized clusters of heat.
Description of the drawings
It, below will be to describing what is used required in the embodiment of the present invention in order to illustrate more clearly of the embodiment of the present invention
Attached drawing is briefly described.It will be apparent that the accompanying drawings in the following description is only some embodiments described in the present invention, it is right
For those skilled in the art, without creative efforts, can also it be obtained according to following attached drawing
Its attached drawing.
Fig. 1 is the structure diagram of friction drum in the embodiment of the present invention；
Fig. 2 is the structure diagram of friction cylinder in the embodiment of the present invention；
Wherein, the corresponding parts title of reference numeral is as follows：
1- drum shells, 2- friction cylinders, 3- spiral annular grooves, 4- brass tubes, 5- brass heat dissipating rings, 11- spiral embedded rings, 21- compensating tanks,
31- upper sides, 32- downsides, the arc-shaped bottom surfaces of 33-, the first circular arc chamferings of 34-, the second circular arc chamferings of 35-.
Specific embodiment
In order to which those skilled in the art is made to more fully understand the present invention, below in conjunction with the attached drawing in the embodiment of the present invention
Clear, complete description is carried out to the technical solution in the embodiment of the present invention.It will be apparent that embodiment described below is only
It is the part rather than whole in the embodiment of the present invention.Based on the embodiment that the present invention records, those skilled in the art are not
The other all embodiments obtained in the case of making the creative labor, in the scope of protection of the invention.
Embodiment 1：
Drum type brake for car, including：
Inside has the drum shell 1 of cylindric accommodating cavity；
Cylindric friction cylinder 2, friction cylinder 2 are located in accommodating cavity, and the peripheral surface of friction cylinder 2 and the inner peripheral surface of accommodating cavity are consolidated
It is fixed to connect, spiral helicine spiral annular groove 3 is opened up on the peripheral surface of friction cylinder 2, spiral annular groove 3 extends around the axis of friction cylinder 2,
The inner surface of spiral annular groove 3 includes upper side 31, positioned at the downside 32 of the lower section of upper side 31 and positioned at upper side 31 and under
Arc-shaped bottom surface 33 between side 32；
Further include brass tube 4 of the spiral surrounding on friction cylinder 2, brass tube 4 is located in spiral annular groove 3, brass tube 4 with it is arc-shaped
Bottom surface 33 contacts；
The brass heat dissipating ring 5 for being fixed on bulging 1 outer surface of shell is further included, drum shell 1 and brass heat dissipating ring 5 are run through in one end of brass tube 4
Connection；
The compensating tank 21 that multiple sliver transvers sections are triangle, compensating tank 21 and friction are uniformly provided on the peripheral surface of friction cylinder 2
The axis of cylinder 2 is parallel, and the both ends of compensating tank 21 are located at the upper and lower side end face of friction cylinder 2 respectively.
Friction cylinder 2 is set, and in braking, hoof block rubs with friction cylinder 2, is worn so as to avoid rousing shell 1.It is rubbing
Cylinder 2 be worn cause braking ability decline after, it is only necessary to replace friction cylinder 2, avoid replacement drum shell 1 bring it is of high cost
The problem of, greatly reduce use cost.
Additionally, it is provided better heat dissipation performance, opens up spiral annular groove 3 on the peripheral surface of friction cylinder 2.Relative to by spiral
Annular groove 3 is opened in the inner peripheral surface of friction cylinder 2, and spiral annular groove 3 is opened in the peripheral surface of friction cylinder 2, can effectively avoid hoof block
When rubbing with the inner peripheral surface of friction cylinder 2, the inner circumferential surface intensity of friction cylinder 2 is low, and friction area reduction causes to brake hypodynamic ask
Topic.Meanwhile spiral annular groove 3 is opened in the peripheral surface of friction cylinder 2, it is more advantageous to heat and distributes, avoid heat in friction cylinder 2
Assemble in portion.Spiral helicine spiral annular groove 3 is opened up, is conducive to the circulation in the heat of the various pieces generation of friction cylinder 2 so that heat
Amount can be uniformly distributed on friction cylinder 2, avoid the localized clusters of heat.
Spiral annular groove 3 includes arc-shaped bottom surface 33, the stress concentration in 3 inner surface of spiral annular groove is thus avoided, into one
Step ensure that the structural strength of friction cylinder 2.
Setting brass tube 4 and brass heat dissipating ring 5, brass tube 4 directly conduct the heat in friction cylinder 2 to brass heat dissipating ring
5, heat is distributed by brass heat dissipating ring 5, further improves radiating efficiency.
Friction cylinder 2 expands with heat and contract with cold, and friction cylinder 2 may be caused to lose circle so that the friction between hoof block and friction cylinder 2 occurs different
Often, braking ability declines.For this purpose, opening up compensating tank 21, the volume change when friction cylinder 2 expands with heat and contract with cold for friction cylinder 2 provides
Space avoids 2 interior tissue of friction cylinder from mutually squeezing caused friction cylinder 2 and loses circle, to provide stable braking ability.
Embodiment 2：
As shown in Figure 1, the present embodiment is on the basis of embodiment 1, the upper and lower side end face of friction cylinder 2 and the inner peripheral surface of friction cylinder 2
Between pass through 34 transition of the first circular arc chamfering connect.
First circular arc chamfering 34 is set, avoid friction cylinder 2 in hoof block friction process, 2 upper and lower side end face of friction cylinder with
Stress concentration between the inner peripheral surface of friction cylinder, the situation for effectivelying prevent friction cylinder 2 cracking improve making for friction cylinder 2
Use life and reliability.
Embodiment 3：
As shown in Figure 1, the present embodiment is on the basis of embodiment 1 or 2, the upper and lower side end face of friction cylinder 2 and the periphery of friction cylinder 2
It is connected between face by 35 transition of the second circular arc chamfering.
Second circular arc chamfering 35 is set, avoid friction cylinder 2 in hoof block friction process, 2 upper and lower side end face of friction cylinder with
Stress concentration between the inner peripheral surface of friction cylinder, the situation for effectivelying prevent friction cylinder 2 cracking improve making for friction cylinder 2
Use life and reliability.
Embodiment 4：
As shown in Figure 1, the present embodiment is on the basis of embodiment 1,2 or 3, the inwardly protruding composition of inner peripheral surface and spiral shell of accommodating cavity
3 corresponding spiral embedded rings 11 of annular groove are revolved, spiral embedded rings 11 are embedded in spiral annular groove 3, spiral embedded rings 11 and spiral annular groove 3
Arc-shaped bottom surface 33 between there are gaps, spiral embedded rings 11 to be contacted with upper side 31 and downside 32.
Spiral embedded rings 11 are set, and spiral embedded rings 11 are contacted with upper side 31 and downside 32, so as to higher effect
Rate conducts the heat in spiral annular groove 3 to drum shell 1, improves heat dissipation performance.The circular arc of spiral embedded rings 11 and spiral annular groove 3
There are gaps between shape bottom surface 33, provide space for heat flowing, heat is enable to be uniformly distributed in heat-radiating ring-groove 3, is improved
Heat dissipation uniformity avoids the localized clusters of heat.
It these are only the section Example of the present invention, be not intended to restrict the invention, for those skilled in the art
For, the invention may be variously modified and varied.Any modification for all within the spirits and principles of the present invention, being made, etc.
With replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (4)
1. drum type brake for car, which is characterized in that including：Inside has the drum shell of cylindric accommodating cavity（1）；
Cylindric friction cylinder（2）, the friction cylinder（2）In accommodating cavity, the friction cylinder（2）Peripheral surface with it is described
The inner peripheral surface of accommodating cavity is fixedly connected, the friction cylinder（2）Peripheral surface on open up spiral helicine spiral annular groove（3）, it is described
Spiral annular groove（3）Around the friction cylinder（2）Axis extension, the spiral annular groove（3）Inner surface include upper side（31）、
Positioned at the upper side（31）The downside of lower section（32）And positioned at the upper side（31）With the downside（32）Between
Arc-shaped bottom surface（33）；
Spiral surrounding is further included in the friction cylinder（2）On brass tube（4）, the brass tube（4）Positioned at spiral annular groove（3）
It is interior, the brass tube（4）With arc-shaped bottom surface（33）Contact；
It further includes and is fixed on the bulging shell（1）The brass heat dissipating ring of outer surface（5）, the brass tube（4）One end through described
Drum shell（1）With the brass heat dissipating ring（5）Connection；
The friction cylinder（2）Peripheral surface on be uniformly provided with multiple sliver transvers sections be triangle compensating tank（21）, the benefit
Repay slot（21）With the friction cylinder（2）Axis it is parallel, the compensating tank（21）Both ends respectively be located at the friction cylinder（2）'s
Upper and lower side end face.
2. drum type brake for car according to claim 1, it is characterised in that：The friction cylinder（2）Upper and lower side end face
With the friction cylinder（2）Inner peripheral surface between pass through the first circular arc chamfering（34）Transition connects.
3. drum type brake for car according to claim 1, it is characterised in that：The friction cylinder（2）Upper and lower side end face
With the friction cylinder（2）Peripheral surface between pass through the second circular arc chamfering（35）Transition connects.
4. drum type brake for car according to claim 1, it is characterised in that：The inner circumferential of the accommodating cavity is inward-facing convex
It rises and forms and the spiral annular groove（3）Corresponding spiral embedded rings（11）, the spiral embedded rings（11）The embedded helical ring
Slot（3）It is interior, the spiral embedded rings（11）With the spiral annular groove（3）Arc-shaped bottom surface（33）Between there are gaps, it is described
Spiral embedded rings（11）With the upper side（31）With the downside（32）Contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611187704.XA CN108204415A (en) | 2016-12-20 | 2016-12-20 | Drum type brake for car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611187704.XA CN108204415A (en) | 2016-12-20 | 2016-12-20 | Drum type brake for car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108204415A true CN108204415A (en) | 2018-06-26 |
Family
ID=62604205
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611187704.XA Withdrawn CN108204415A (en) | 2016-12-20 | 2016-12-20 | Drum type brake for car |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108204415A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109435921A (en) * | 2018-12-04 | 2019-03-08 | 贵州创能科技有限公司 | A kind of brake rim and brake block for truck brake |
| CN113513545A (en) * | 2021-05-27 | 2021-10-19 | 郭佳 | Self-adjusting clutch |
-
2016
- 2016-12-20 CN CN201611187704.XA patent/CN108204415A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109435921A (en) * | 2018-12-04 | 2019-03-08 | 贵州创能科技有限公司 | A kind of brake rim and brake block for truck brake |
| CN113513545A (en) * | 2021-05-27 | 2021-10-19 | 郭佳 | Self-adjusting clutch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180626 |