CN204458930U - Automobile brake drum - Google Patents
Automobile brake drum Download PDFInfo
- Publication number
- CN204458930U CN204458930U CN201520124825.4U CN201520124825U CN204458930U CN 204458930 U CN204458930 U CN 204458930U CN 201520124825 U CN201520124825 U CN 201520124825U CN 204458930 U CN204458930 U CN 204458930U
- Authority
- CN
- China
- Prior art keywords
- brake drum
- drum body
- wall
- steel loop
- steel
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of automobile brake drum, comprise brake drum body, brake drum body comprises connecting end, and the end face of the connecting end of brake drum body is evenly provided with attachment hole, and this end face is also evenly provided with at least three locating slots; On brake drum body outer wall, sheathed at least three steel loops, fit between steel loop and brake drum body outer wall; Described automobile brake drum also comprises heat dissipation channel, and heat dissipation channel is the through hole running through steel loop and brake drum body wall in the lump.Brake drum body outer wall arranges multiple steel loop, by the enclasping force of steel loop under guarantee need not increase the prerequisite of brake drum body thickness, improve the structural strength of brake drum body, steel loop can improve heat dispersion simultaneously, and heat dissipation channel is set on steel loop and brake drum body simultaneously, strengthen radiating effect further.
Description
Technical field
The utility model relates to automobile brake drum technical field, is specially a kind of automobile brake drum.
Background technique
Brake drum (i.e. brake drum) is the important component part of motor vehicle braking system, and the performance of brake drum directly affects the braking quality of vehicle, has vital impact to the Safety performance of vehicle.Inside typical brake drum and shoe contact, brake drum is fixedly mounted on wheel hub, rotary state is in vehicle traveling process, when needs brake, brake shoe presses under the action of the braking force on brake drum, utilize the surface friction drag between brake drum, thus make car deceleration or the parking of traveling, to ensure traffic safety.
Automobile due to quality comparatively large, inertia is also comparatively large, and its brake member requires very high.When automobile heavy-load, run at high speed time, especially when lower long slope or abrupt slope, owing to needing the braking of larger braking force and continuous several times to ensure that automobile is in controllable state, high pressure friction between brake shoe and brake drum makes brake drum inner wall temperature suddenly raise, cause brake drum, the metallographic structure of brake shoe changes, produce annealing phenomena, make the decline corresponding to hardness of the intensity of brake drum, wearing and tearing aggravation, reduction of service life.Can brake failure be caused time serious, lead to a disaster.
Because traditional brake drum material is gray cast iron, gray cast iron machining is easy, wear-resisting, thermal capacity is large, but strength of gray cast iron is low, fragility is large simultaneously, in order to reduce the negative effect that these characteristics are brought, the wall thickness of brake drum must do very thick in ensure that brake drum has higher structural strength.But the wall thickness of brake drum is larger, internal-external temperature difference during brake drum braking is larger, and the temperature difference strengthens the temperature difference stress caused and adds that the mechanical behavior under high temperature of material worsens, and often causes brake drum inwall to develop into be full of cracks by longitudinal fine fisssure, so that last brake drum cracking.
In view of this, special proposition the utility model.
Model utility content
The technical problems to be solved in the utility model is to overcome the deficiencies in the prior art, provides a kind of automobile brake drum, improves heat dispersion, reduces high temperature to the impact of brake drum, extends the working life of brake drum.
For solving the problems of the technologies described above, the basic conception of the utility model employing technological scheme is:
A kind of automobile brake drum, comprise brake drum body, brake drum body comprises connecting end, it is characterized in that: the end face of the connecting end of brake drum body is evenly provided with attachment hole, and this end face is also evenly provided with at least three locating slots; On brake drum body outer wall, sheathed at least three steel loops, fit tightly between steel loop and brake drum body outer wall; Described automobile brake drum also comprises heat dissipation channel, and heat dissipation channel is the through hole running through steel loop and brake drum body wall in the lump.
Further, a steel loop in described at least three steel loops is positioned at the middle part of brake drum body outer wall, and all the other steel loops are distributed in the upper and lower of brake drum body outer wall respectively; Steel loop in the middle part of brake drum outer wall and the area of contact between brake drum outer wall are greater than the area of contact between the steel loop and brake drum outer wall of brake drum outer wall upper and lower.
Further, on brake drum body outer wall and the position being positioned at the upper and lower both sides of each steel loop is equipped with one annular protrusion, protruding height is 2-3mm.
Preferably, heat dissipation channel is uniformly distributed at least 3-7 on each steel loop.
Outstanding, steel loop cross section is rectangle.
After adopting technique scheme, the utility model compared with prior art has following beneficial effect: convenient location, is easy to install; Brake drum body outer wall arranges multiple steel loop, by the enclasping force of steel loop under guarantee need not increase the prerequisite of brake drum body thickness, improve the structural strength of brake drum body, steel loop can improve heat dispersion simultaneously, and heat dissipation channel is set on steel loop and brake drum body simultaneously, further reinforcement radiating effect, extends the working life of brake drum.
Accompanying drawing explanation
Fig. 1 is the worm's eye view of the automobile brake drum that the utility model provides;
Fig. 2 is the sectional view of automobile brake drum shown in Fig. 1 along A-A line;
In figure:
1. brake drum body; 2. connecting end; 3. attachment hole; 4. locating slot; 5. steel loop; 6. protruding; 7. heat dissipation channel.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail, to help understanding content of the present utility model.
As shown in Figure 1, a kind of automobile brake drum, comprise brake drum body 1, brake drum body 1 comprises connecting end 2, namely brake drum connects one end of wheel hub, the end face of the connecting end of brake drum body is evenly provided with attachment hole 3, and this end face is also evenly provided with at least three locating slots 4, play the role of positioning when mounted, convenient installation.
On brake drum body outer wall, sheathed at least three steel loops 5, fit tightly between steel loop 5 and brake drum body outer wall; On brake drum body outer wall and the position being positioned at the upper and lower both sides of each steel loop is equipped with one annular protrusion 6, the projection 6 of steel loop 5 both sides defines the position of steel loop, makes it because of vibrations or can not use the steel loop that the causes reason such as deformation and mobile position even comes off slightly for a long time; The height of protruding 6 is preferably 2-3mm, and such height enough limits the position of steel loop, avoids the wall thickness that too much increases this place and its weight is too much increased and cost of material too much increases; Certainly, annular protrusion also can change some block-shaped protrusion uniform in this annular location into, more saves material relative to annular projection.
The utility model can ensure to increase the prerequisite of brake drum body thickness by the enclasping force of steel loop under, improve the structural strength of brake drum body, increase its heat dispersion, improve its mechanical property and Safety performance, extend the working life of brake drum.
With reference to Fig. 2, steel loop 5 cross section is rectangle, also can be the Reasonable Shape such as trapezoidal or semicircle, make steel loop 5 and brake drum body contacts face be plane; A steel loop 5 in described at least three steel loops 5 is positioned at the middle part of brake drum body outer wall, and all the other steel loops 5 are distributed in the upper and lower of brake drum body outer wall respectively; Steel loop 5 in the middle part of brake drum outer wall and the area of contact between brake drum outer wall are greater than the area of contact between the steel loop 5 and brake drum outer wall of brake drum outer wall upper and lower; During braking automobile, the braking force that brake drum body is subject to can be successively decreased from middle part to both sides, and the area of contact of steel loop and brake drum body outer wall reduces the Security that can ensure brake drum body further in the middle part of outer wall to both sides.
The automobile brake drum that the utility model provides also comprises heat dissipation channel 7, and heat dissipation channel 7 is the through hole running through steel loop 5 and brake drum body wall in the lump, can increase the ventilation of brake drum body so further, is beneficial to the timely discharge of heat; Heat dissipation channel 7 is uniformly distributed at least 3-7 on each steel loop 5, is beneficial to Homogeneouslly-radiating, steel loop is offered the telescopicing performance that through hole also adds steel loop to a certain extent.
The above is only preferred implementation of the present utility model; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (5)
1. an automobile brake drum, comprise brake drum body (1), brake drum body comprises connecting end (2), it is characterized in that: the end face of the connecting end (2) of brake drum body is evenly provided with attachment hole (3), and this end face is also evenly provided with at least three locating slots (4); On brake drum body outer wall, sheathed at least three steel loops (5), fit between steel loop (5) and brake drum body outer wall; Described automobile brake drum also comprises heat dissipation channel (7), and heat dissipation channel (7) is the through hole running through steel loop (5) and brake drum body outer wall in the lump.
2. automobile brake drum according to claim 1, it is characterized in that: a steel loop (5) in described at least three steel loops (5) is positioned at the middle part of brake drum body outer wall, and all the other steel loops (5) are distributed in the upper and lower of brake drum body outer wall respectively; The area of contact be positioned between steel loop (5) in the middle part of brake drum outer wall and brake drum outer wall is greater than the area of contact between steel loop (5) and brake drum outer wall being positioned at brake drum outer wall upper and lower.
3. automobile brake drum according to claim 2, it is characterized in that: on brake drum body outer wall and the position being positioned at the upper and lower both sides of each steel loop (5) is equipped with one annular protrusion (6), the height of protruding (6) is 2-3mm.
4. the automobile brake drum according to any one of claim 1-3, is characterized in that: heat dissipation channel (7) is uniformly distributed at least 3-7 on each steel loop (5).
5. automobile brake drum according to claim 4, is characterized in that: steel loop (5) cross section is rectangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520124825.4U CN204458930U (en) | 2015-03-03 | 2015-03-03 | Automobile brake drum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520124825.4U CN204458930U (en) | 2015-03-03 | 2015-03-03 | Automobile brake drum |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204458930U true CN204458930U (en) | 2015-07-08 |
Family
ID=53665820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520124825.4U Expired - Fee Related CN204458930U (en) | 2015-03-03 | 2015-03-03 | Automobile brake drum |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204458930U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105351403A (en) * | 2015-11-26 | 2016-02-24 | 成都九十度工业产品设计有限公司 | High heat dissipation type brake drum |
-
2015
- 2015-03-03 CN CN201520124825.4U patent/CN204458930U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105351403A (en) * | 2015-11-26 | 2016-02-24 | 成都九十度工业产品设计有限公司 | High heat dissipation type 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150708 Termination date: 20160303 |