CN86207768U - Fully floating pneumatic brake - Google Patents
Fully floating pneumatic brake Download PDFInfo
- Publication number
- CN86207768U CN86207768U CN 86207768 CN86207768U CN86207768U CN 86207768 U CN86207768 U CN 86207768U CN 86207768 CN86207768 CN 86207768 CN 86207768 U CN86207768 U CN 86207768U CN 86207768 U CN86207768 U CN 86207768U
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- CN
- China
- Prior art keywords
- brake
- cheek
- shoe
- brake shoe
- wheel
- 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.)
- Ceased
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Abstract
The utility model relates to a fully floating pneumatic brake. The technical proposal of the fully floating pneumatic brake is that a hinge on the other end of a brake shoe is removed and replaced by an adjustable return spring through which two brake shoes are connected, and the brake shoes are in a fully floating state. Force subjected by the surface of each shoe becomes tangential full squeezing type when the brake is conducted, partial impact for each shoe is eliminated, and accordingly, the old disadvantage is overcome. The measured contact surface of each shoe can be 95%, the brake distance is shortened by 25-45%, and the emergency brake can be conducted. The use is safe, and the brake plate and the aluminum rivet can be saved by 45%.
Description
The present invention relates to a kind of air braking systems, floating type brake shoe brake cheek that the air pressure that provides a kind of automobile to use promotes and pull back spring thereof and the supporting of adjustable brake shoe brake cheek.
The braking procedure of automobile is, by the effect of brake pedal.Compressed air brake cylinder promotes brake push rod, brake shoe expander is rotated, ordering about brake shoe brake cheek opens and presses to brake wheel, make to produce friction between brake shoe brake cheek and brake wheel, under the effect of friction, vehicle wheel rotational speed reduces, at this moment, the garden circular velocity of wheel is less than car speed, and just slippage on the road surface of wheel is because tire and ground-surface effect.The road surface produces a power opposite with the automobile direct of travel to wheel, Here it is braking force.
When the loosen the brake straddle, the pressurized air of brake repair room flows back to the brake activation valve emptying, and brake shoe brake cheek is retracted by pull back spring, and brake action is eliminated.
Riveting has friction lining on the brake shoe brake cheek, and an end of brake shoe brake cheek is contained on the eccentric support pin, and each serves as the axle hinge shape that becomes to fill the span of a man's arms with an eccentric pin two brake shoe brake cheek, and is rotatable.As previously mentioned, when brake shoe brake cheek is braked the cam promotion, just rotates around the eccentric support pin and remove friction brake drum, is that hinge separates with the shoulder as the both arms of filling the span of a man's arms.
This brake equipment, brake shoe brake cheek can only serve as that axle rotates with an end, and when brake shoe brake cheek face and brake wheel friction, friction lining is is often wearing and tearing, and the gap between brake shoe lining and the brake wheel can not in time obtain adjusting, and this just makes brake shoe brake cheek incomplete with contacting of brake wheel.So form the scorification of brake shoe brake cheek face Friction disk local overheating, when automobile during the big slope of long distance, just need remove to cool off brake equipment by adding the elevated tank cooling water system under heavy duty, malfunctioning to avoid brake equipment.Thisly add high-order cooling water system and increased the complexity of automobile component and the trouble of driver behavior.
Be because brake shoe brake cheek one end of this brake equipment is that hinge is on the eccentric support pin equally.And brake shoe brake cheek face friction lining is often all in wearing and tearing, make respectively to take turns brake shoe brake cheek to reach synchronous adjustment be difficult, often adjusts frequent and poor effect.This just produce braking roughly, big, the noise of vibrations sharply encourages, whipping, brake shoe brake cheek is killed even hoof fracture or the like.Not only make the rapid loss of Friction disk, wear on tyres is big, and the brake failure of this device, uses the reason of bad still driving accident.
In view of the foregoing, core of the present invention is the stationary state of brake off hoof on the eccentric support pin, is that plane earth is positioned on the supporting base and make two brake shoe brake cheek.So, when brake shoe brake cheek is braked cam and promotes to go brake wheel near high speed rotating, because each point will reach same garden circular velocity on the brake shoe brake cheek face, at this moment brake shoe brake cheek become again can each to floating, therefore a certain position of hoof face and the brake wheel that is rotating contacts, become contacting of whole brake shoe brake cheek face and brake wheel rapidly, such brake action, effect is remarkable.Because the contact surface of brake shoe brake cheek and brake wheel is big, with regard to the scorification of unlikely generation local overheating.
Because brake shoe brake cheek one end, plane earth places on the supporting base, removes to make brake shoe brake cheek get back to non-braking position when braking, just must increase pull back spring.Simultaneously, be convenient to adjust for the gap that makes brake shoe brake cheek and brake wheel, the free-ended supporting base of brake shoe brake cheek that is installed on the back-plate will transform into into adjustable.
This new full floating air braking systems, the shortcoming of having exempted old device, the glancing impact order of importance and emergency is clearly demarcated, and braking is steady, but emergency brake, braking is sensitive reliable, has reduced the generation that driving is caused trouble, and is safe in utilization, easy to adjust.Save brake plate, brake wheel, Tyte Wear.
Embodiment describes, and sees accompanying drawing.
With the Jiefang brand automobile is example, implements foregoing invention, only needs former brake shoe brake cheek is cut from eccentric pin one transverse plane K, and like this, when glancing impact takes place, brake shoe brake cheek just can each remove to contact brake wheel to moving (floating), reaches the full face contact of brake shoe brake cheek and brake wheel.But brake shoe brake cheek has already been removed hinged with eccentric pin, make brake shoe brake cheek when brake off, still leave brake wheel and get back to the bearing position of non-braking, just must be outside original pull back spring, increase a pull back spring again, the pull back spring of increase is installed between two brake shoe brake cheek and the parallel symmetry of original pull back spring.Simultaneously, because pull back spring is also being undertaken the effect of drawing brake shoe brake cheek of hanging, a catch of pull back spring can be installed on demand, this catch can be installed on the back-plate.
The main aspect of this enforcement such as above-mentioned be that former brake shoe brake cheek and eccentric pin pivotally attached one end are cut from K, then the eccentric pin overcoat has just become the areal of support of new floating type brake shoe brake cheek, for making the adjust the clearance convenience of brake shoe brake cheek and brake wheel, can do following transformation: the first, the eccentric pin overcoat is changed into the brake shoe brake cheek cradle that eccentric pin-and-hole is arranged in profile six sides, this cushion block can contact with brake shoe brake cheek surface K place on four direction successively on demand, just can reach the gap of adjusting brake shoe brake cheek and brake wheel.The second, the brake shoe abutment that will be riveted on originally on the back-plate changes bolted connection into, and like this, brake shoe abutment just can be adjusted within the specific limits.
In addition, the adjustment of brake shoe expander corner also can change the gap of brake shoe brake cheek and brake wheel.
Through the floating type brake equipment of novel air pressure of above-mentioned transformation, on four tons of lorries of Jiefang brand of oil company, Guizhou Province, used 25,000 surplus kilometer.Safe and reliable in the long-distance running of mountain area.Facts have proved that the brake shoe brake cheek face can reach 95% with contacting of brake wheel.Under same load and road speed, stopping distance can shorten 25～45%.
Description of drawings: 1-compressed air brake cylinder; The 2-push rod; The 3-brake shoe expander; 4,5-brake shoe brake cheek (hoof face Friction disk in riveting); The cradle of 6-band eccentric orfice; 7,8-pull back spring; The 9-brake wheel; The 10-back-plate.
Claims (3)
1, a kind of air braking systems, form by compressed air brake cylinder, push rod, brake shoe expander, eccentric pin overcoat, brake shoe brake cheek, brake wheel and back-plate, it is characterized in that the cradle that its eccentric pin overcoat is a hexahedron, in order to adjust the gap of brake shoe brake cheek and brake wheel.
2, by the air braking systems shown in 1, it is characterized in that being equipped with on it pull back spring.
3, by the air braking systems shown in 1,2, it is characterized in that it has adjustable bolted brake shoe abutment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 86207768 CN86207768U (en) | 1986-10-14 | 1986-10-14 | Fully floating pneumatic brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 86207768 CN86207768U (en) | 1986-10-14 | 1986-10-14 | Fully floating pneumatic brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN86207768U true CN86207768U (en) | 1987-12-05 |
Family
ID=4810126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 86207768 Ceased CN86207768U (en) | 1986-10-14 | 1986-10-14 | Fully floating pneumatic brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN86207768U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105020305A (en) * | 2015-07-22 | 2015-11-04 | 芜湖伯特利汽车安全系统股份有限公司 | Air disc brake and automatic friction-plate returning method thereof |
| CN106015395A (en) * | 2016-06-06 | 2016-10-12 | 任建龙 | Novel push-and-pull full-floating brake for vehicles |
-
1986
- 1986-10-14 CN CN 86207768 patent/CN86207768U/en not_active Ceased
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105020305A (en) * | 2015-07-22 | 2015-11-04 | 芜湖伯特利汽车安全系统股份有限公司 | Air disc brake and automatic friction-plate returning method thereof |
| CN106015395A (en) * | 2016-06-06 | 2016-10-12 | 任建龙 | Novel push-and-pull full-floating brake for vehicles |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CE01 | Termination of patent right |