CN1286187A - Drum-type 4-block 8-piece brake without tangent point - Google Patents
Drum-type 4-block 8-piece brake without tangent point Download PDFInfo
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- CN1286187A CN1286187A CN 99119286 CN99119286A CN1286187A CN 1286187 A CN1286187 A CN 1286187A CN 99119286 CN99119286 CN 99119286 CN 99119286 A CN99119286 A CN 99119286A CN 1286187 A CN1286187 A CN 1286187A
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- brake
- hoof
- drum
- braking
- arc gusset
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Abstract
A drum-type 4-block 8-piece brake without tangent point is composed of braking drum, braking blocks, braking sub-pump or cam, braking disk and pull spring. Two hraking sub-pumps or cams are oppositely mounted in braking drum, and are matched with 2 braking blocks mounted oppositely. Each braking block has two sub-blocks. Each sub-block has two friction pieces. Its advantages are constant contact area for braking and strong braking force.
Description
The present invention relates to a kind of automobile drum brake equipment, particularly a kind of drum-type 4-block 8-piece brake without tangent point.
At present, frictin braek remains the main brake equipment on the automobile, and frictin braek can be divided into three kinds of drum-types, disc type, belt by its structure, and on modern automobile, great majority all are to adopt drum brake mechanism.The driving safety of automobile is the functional reliability that depends on brake system to a great extent.The deceleration and stopping performance of drg is one of basic mechanical design feature of automobile, and it is directly connected to the safety of people's lives and properties.Along with the development and the progress of science and technology of society, automobile will progressively enter family in China, become the main transport of people, and because the improvement of road, the moving velocity of automobile and the increase of vehicle flowrate, braking performance of automobile becomes more important." hub formula four shoe brakes and four loop safety devices thereof " (application number: 9529260.3) patent that the inventor applies for April nineteen ninety-five, a kind of brake device for car that is connected and composed by master brake cylinder, brake pipe, front and back drg is disclosed, master brake cylinder has four independent oil pockets, connect by four brake pipes respectively and handle forward and backward brake cylinder, and each drg is made up of four brake shoe brake cheek and two brake cylinders.The advantage of this utility model is, four brake shoe brake cheek can guarantee actv. frictional area in the braking procedure, improved braking effect, but wearing and tearing along with brake facing and brake drum, the change of brake facing and brake drum acting point moves, just may cause the instability of deceleration and stopping performance, thereby occur that the oversize or emergency braking of stopping distance is sliding partially etc. to be manifested.How in guaranteeing braking procedure in the actv. frictional area, make brake facing and brake drum again in the worn-down process, brake facing and brake drum acting point do not take place to become and move, and it is constant that the deceleration and stopping performance maintenance is stablized, and become a great problem of present raising brake system performance.
The purpose of this invention is to provide a kind of brake facing and brake drum in the worn-down process, brake facing and brake drum acting point do not take place to become and move, and keep deceleration and stopping performance to stablize the unmodified drum-type 4-block 8-piece brake without tangent point.
The objective of the invention is to be achieved through the following technical solutions:
A kind of drum-type 4-block 8-piece brake without tangent point, comprise brake wheel, brake shoe, brake cylinder, brake disc, back-moving spring, it is characterized in that relative fixed is equipped with two brake cylinders in the brake wheel of drg, the two ends of two brake shoes of installing relatively are matchedly connected with two braking wheel cylinders respectively; Each brake shoe is to divide hoof to interconnect by bearing pin by two brakes to form, and is fixed with two friction linings on each brake branch hoof.Two brakes divide one of them brake of hoof to divide the hoof I to be made up of an arc gusset and the two brake facing adapter plates that are fixed on arc gusset two ends, its section is the T type, on the brake facing adapter plate, be installed with brake facing, end at the arc gusset has an axis hole, has a slotted hole at the middle part near the other end of arc gusset; It is two that the brake that divides the hoof I to match with brake divides the arc gusset of hoof II, and an end that is fixed with brake facing adapter plate arc gusset at arc gusset two ends has an axis hole, has a slotted hole at the middle part near the other end of arc gusset.Two brakes divide hoof I, II to interconnect by bearing pin and form, and the arc gusset of brake branch hoof I is installed in to brake and divides between the two arc gussets of hoof II, and brake divides the axis hole of hoof I one end to link to each other by bearing pin with the slotted hole that open at the branch hoof II middle part of braking; Brake divides the hoof I slotted hole that open at the middle part to divide the axis hole of hoof II one end to link to each other by bearing pin and brake, and bearing pin is fixed on the brake disc.
Characteristics of the present invention are: 1. owing to adopt the connection of floating between four brake shoes, not tangent contact when brake facing contacts with brake drum, but face contact, the area of contact that so just can effectively guarantee in the brake process eight brake facings and brake drum does not make the acting point of brake facing and brake drum take place to become with the wearing and tearing of brake facing and brake drum and moves, thereby keeps braking performance of automobile to stablize constant; 2. because in four brake shoes, fulcrum each other in twos, and can radially moving, under the situation of same brake pressure and onesize brake cylinder or brake shoe expander, brake weight is apart from increasing on the one hand; On the other hand because the contact surface that can remain valid when the brake weight distance can increase, just can make the braking force of drg increase; 3. owing between eight brake facings certain slit is arranged, so in braking procedure, the enhancing of the heat-sinking capability of brake facing and brake drum, the heat fade that has slowed down drg has improved the Combination property of whole drg; 4. because the contact surface of brake facing and brake drum is very little with the wearing and tearing variation of brake facing and brake drum, thus in brake process noiseless.
Embodiments of the invention are described with reference to the accompanying drawings.
Accompanying drawing 1 is the structural representation of oil brake of the present invention
Accompanying drawing 2 is the structural representation of compressed air brake of the present invention
Accompanying drawing 3 is the A-A cutaway view of structural representation of the present invention
Shown in Fig. 1,3, when drg was oil brake, relative fixed was equipped with two brake cylinders 1 in the brake wheel 2: when drg was compressed air brake, as shown in Figure 2, brake cylinder can be changed into two hard-wired relatively brake shoe expanders 8.Two brake shoes 5 are installed in the drg relatively, and the two ends of brake shoe 5 match with two braking wheel cylinders 1 or brake shoe expander 8 respectively, between two brake shoes of installing relatively 5 back-moving spring 7 are installed.Each brake shoe 5 is to divide hoof I 10, brake to divide hoof II 5 to interconnect by bearing pin 3 by brake to form, and bearing pin 3 is fixed on the brake disc 6, and each brakes to divide on the hoof and is fixed with two friction linings 4.Two brakes divide one of them brake of hoof to divide hoof I 10 to be made up of an arc gusset and the two brake facing adapter plates 11 that are fixed on arc gusset two ends, its section is the T type, on the brake facing adapter plate, be installed with brake facing 4, end at the arc gusset has a hole, has a slotted hole 9 at the middle part near the other end of arc gusset; It is two that the brake that divides hoof I 10 to match with brake divides the arc gusset of hoof II 5, is fixed with brake facing adapter plate 11 at arc gusset two ends, and an end of arc gusset has a hole, has a slotted hole 9 at the middle part near the other end of arc gusset.The arc gusset of brake branch hoof I is installed in to brake and divides between the two arc gussets of hoof II, and brake divides the hole of hoof I one end to link to each other by bearing pin 3 with the slotted hole 9 that open at the branch hoof II middle part of braking; Brake divides the hoof I slotted hole that open at the middle part to divide the hole of hoof II one end to link to each other by bearing pin 3 and brake.Radially open when glancing impact brake cylinder 1 or brake shoe expander 8 promotes two brake shoes 5, friction lining 4 contacts with brake wheel 2, thereby plays the purpose of brake.Because brake divides the hoof I to divide between the hoof II with brake and links to each other by bearing pin 3, fulcrum each other, and have slotted hole 9 on brake branch hoof I and the brake branch hoof II, when contacting with brake wheel 2, friction lining 4 can adjust the size of contact surface at any time, make friction lining 4 and brake wheel 2 always maintenance face contact, rather than the point of contact contact, just can guarantee that so brake weight is very little with the wearing and tearing variation of brake facing and brake drum, thereby keep braking performance of automobile to stablize constant.
Claims (3)
1. drum-type 4-block 8-piece brake without tangent point, comprise brake wheel, brake shoe, brake cylinder or brake shoe expander, brake disc, back-moving spring, it is characterized in that relative fixed is equipped with two brake cylinders (1) or brake shoe expander (8) in the brake wheel (2) at drg, the two ends of two two brake shoes of installing relatively (5) match with two braking wheel cylinders (1) or brake shoe expander (8) respectively; Each brake shoe (5) is to divide hoof (5) (10) to interconnect by bearing pin (3) by two brakes to form, be fixed with two friction linings (4) on each brake branch hoof (5) (10).
2. a kind of drum-type 4-block 8-piece brake without tangent point according to claim 1, it is characterized in that two brakes divide one of them brake of hoof (5) to divide hoof I (10) to be made up of an arc gusset and the brake facing adapter plate (11) that is fixed on arc gusset two ends, its section is the T type, on brake facing adapter plate (11), be installed with friction lining (4), one end of arc gusset has an axis hole, has a slotted hole (9) at the middle part near the other end of arc gusset; It is two of arrangement in parallel that the brake that divides hoof I (10) to match with brake divides the arc gusset of hoof II (5), be fixed with brake facing adapter plate (11) at arc gusset two ends, on brake facing adapter plate (11), be installed with friction lining (4), end at the arc gusset has an axis hole, has a slotted hole (9) at the middle part near the other end of arc gusset.
3. a kind of drum-type 4-block 8-piece brake without tangent point according to claim 1, it is characterized in that two brakes divide hoof (5) to interconnect by bearing pin (3) and form, the arc gusset of brake branch hoof I (10) is installed in to brake and divides between the two arc gussets of hoof II (5), and brake divides the axis hole of hoof I (10) one ends to link to each other by bearing pin (3) with the slotted hole (9) that open at branch hoof II (5) middle part of braking; Brake divides hoof I (10) slotted hole (9) that open at the middle part to divide the axis hole of hoof II () end to link to each other by bearing pin (3) and brake, and bearing pin (3) is fixed on the brake disc (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99119286 CN1286187A (en) | 1999-08-31 | 1999-08-31 | Drum-type 4-block 8-piece brake without tangent point |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99119286 CN1286187A (en) | 1999-08-31 | 1999-08-31 | Drum-type 4-block 8-piece brake without tangent point |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1286187A true CN1286187A (en) | 2001-03-07 |
Family
ID=5280813
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99119286 Pending CN1286187A (en) | 1999-08-31 | 1999-08-31 | Drum-type 4-block 8-piece brake without tangent point |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1286187A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100335811C (en) * | 2005-06-02 | 2007-09-05 | 高自强 | Drum type four-ungulae pneumatic brake with gap adjusted automatically |
| CN103195845A (en) * | 2013-05-01 | 2013-07-10 | 张卫 | Multipoint brake disc |
| CN103223928A (en) * | 2013-04-09 | 2013-07-31 | 苏州瑞佳新能源动力科技有限公司 | High-performance brake device |
| CN109322942A (en) * | 2018-03-30 | 2019-02-12 | 孙建 | Detachable automobile brake tile |
| CN110107621A (en) * | 2019-05-29 | 2019-08-09 | 苏州经贸职业技术学院 | A kind of New drum type brake apparatus |
| WO2022068154A1 (en) * | 2020-09-29 | 2022-04-07 | 上海傅利叶智能科技有限公司 | Exoskeleton joint self-locking mechanism, knee joint, and bionic rehabilitation robot |
-
1999
- 1999-08-31 CN CN 99119286 patent/CN1286187A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100335811C (en) * | 2005-06-02 | 2007-09-05 | 高自强 | Drum type four-ungulae pneumatic brake with gap adjusted automatically |
| CN103223928A (en) * | 2013-04-09 | 2013-07-31 | 苏州瑞佳新能源动力科技有限公司 | High-performance brake device |
| CN103223928B (en) * | 2013-04-09 | 2017-12-29 | 中慈（浙江）电动汽车制造有限公司 | A kind of High-performance brake device |
| CN103195845A (en) * | 2013-05-01 | 2013-07-10 | 张卫 | Multipoint brake disc |
| CN109322942A (en) * | 2018-03-30 | 2019-02-12 | 孙建 | Detachable automobile brake tile |
| CN110107621A (en) * | 2019-05-29 | 2019-08-09 | 苏州经贸职业技术学院 | A kind of New drum type brake apparatus |
| WO2022068154A1 (en) * | 2020-09-29 | 2022-04-07 | 上海傅利叶智能科技有限公司 | Exoskeleton joint self-locking mechanism, knee joint, and bionic rehabilitation robot |
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