CN104265808A - Combined brake wheel cylinder - Google Patents
Combined brake wheel cylinder Download PDFInfo
- Publication number
- CN104265808A CN104265808A CN201410462262.XA CN201410462262A CN104265808A CN 104265808 A CN104265808 A CN 104265808A CN 201410462262 A CN201410462262 A CN 201410462262A CN 104265808 A CN104265808 A CN 104265808A
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- China
- Prior art keywords
- piston
- cylinder body
- right piston
- wheel cylinder
- left piston
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Abstract
The invention relates to a combined brake wheel cylinder. The combined brake wheel cylinder comprises a cylinder body, an axial through hole is formed in the cylinder body, a right piston and a left piston are mounted at two ends of the axial through hole of the cylinder body respectively, a semi-spherical groove is formed in one end of the right piston, a conical boss is arranged at the other end of the right piston, a guide column is mounted on the surface of the conical boss, a guide hole is formed in one end of the left piston, the guide column is inserted into the guide hole, a semi-spherical groove is formed in the other end of the left piston, a spring is installed between the right piston and the left piston, the spring sleeves the conical boss, leather rings are disposed in middles of the right piston and the left piston, leather bowls are mounted at left and right ends of the cylinder body, brake push rods are arranged at one end of the right piston and one end of the left piston, and dust-proof covers are installed at two ends of the cylinder body. According to the combined brake wheel cylinder, the brake push rods are hinged to the pistons through sphere pairs, the movement flexibility of the brake push rods is improved, the guide column is matched with the guide hole, and thereby, the accuracy during movement of the pistons can be guaranteed.
Description
Technical field
The present invention relates to brake system of car, specifically a kind of combined type wheel cylinder.
Background technique
As everyone knows, automobile brake wheel cylinder is arranged in automotive wheel wheel disc, for the braking of automobile, is the important device ensureing automotive safety braking, usually adopts common hydraulic type wheel cylinder, generally comprise cylinder body, piston, spring oil nozzle etc. in general automobile.The structure that the brake pushrod of traditional wheel cylinder and piston are integrated, if both just must change by Remedy for Piston Damage together, so not only maintenance difficult, and add maintenance expenses, waste resource.In addition, when piston slides in piston hole, the of long duration phenomenon often occurring sideslip, namely the axis of piston and the axis of piston hole be not on same straight line, so often cause the consequence that piston is stuck, if piston is stuck will cause brake system failure, consequence is hardly imaginable.So, be badly in need of a kind of wheel cylinder and solve the above problem.
Summary of the invention
Technical problem to be solved by this invention be to provide reasonable in design, fabricating cost is low, a kind of combined type wheel cylinder of long service life.
Technical problem to be solved by this invention realizes by the following technical solutions:
A kind of combined type wheel cylinder, comprises cylinder body, spring, apron, right piston, leather cup, brake pushrod, dust-proof cover and left piston.Described cylinder body is provided with axial hole, and described cylinder body upper end is provided with oil inlet hole, and described oil inlet hole is provided with oil nozzle, is provided with exhaust nozzle on the left of described oil nozzle, and described cylinder body two ends are provided with outside thread.Described right piston and left piston are arranged on the two ends of the axial hole of cylinder body respectively.Described right piston one end is provided with hemispherical groove, and the other end is provided with conical boss, and described conical boss surface is provided with guide pillar.Described left piston one end is provided with pilot hole, and guide pillar is inserted in pilot hole, can ensure that left piston, right piston are when sliding and the coaxality of axial hole, are stuck to avoid piston like this.The left piston the other end is provided with hemispherical groove.Between right piston and left piston, spring is installed, and spring housing is on conical boss.All apron is installed in the middle part of described right piston and left piston.Described leather cup is arranged on the two ends, left and right of cylinder body.Described right piston and left piston one end are all provided with brake pushrod, and described brake pushrod one end is provided with hemisphere, and described hemisphere is stuck in hemispherical groove.Described cylinder body two ends are all provided with dust-proof cover, enter in cylinder body for preventing dust.
Diameter 1 ~ the 2mm larger than the diameter of pilot hole of described guide pillar, so that guide pillar inserts in pilot hole smoothly.
Internal diameter 2 ~ the 3mm larger than the Outside diameter of conical boss of described spring, thus can not swing when ensureing that spring is compressed.
The invention has the beneficial effects as follows: the present invention have rational in infrastructure compact, fabricating cost is low and the advantage such as long service life, facilitate production and processing and maintenance, brake pushrod and piston adopt ball pair hinged, improve the flexibility of brake pushrod motion, reduce the difficulty of processing of manufacture, adopt the mode that guide pillar matches with pilot hole, ensure that the accuracy of piston when moving, avoid a series of consequences caused because of seizure of piston, brake pushrod and piston separate the scheme designed, save the cost manufactured, easy to install, be easy to adjustment and change.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is general structure schematic diagram of the present invention;
Fig. 2 is main TV structure schematic diagram of the present invention.
Embodiment
The technological means realized to make the present invention, creation characteristic, reaching object and effect is easy to understand, below the present invention being set forth further.
As shown in Figure 1 to Figure 2, a kind of combined type wheel cylinder, comprises cylinder body 1, spring 2, apron 3, right piston 4, leather cup 5, brake pushrod 6, dust-proof cover 7 and left piston 8.Described cylinder body 1 is provided with axial hole 1a, and described cylinder body 1 upper end is provided with oil inlet hole 1b, and described oil inlet hole 1b is provided with oil nozzle 1c, is provided with exhaust nozzle 1d on the left of described oil nozzle 1c, and described cylinder body 1 two ends are provided with outside thread.Described right piston 4 and left piston 8 are arranged on the two ends of the axial hole 1a of cylinder body 1 respectively.Described right piston 4 one end is provided with hemispherical groove 9, and the other end is provided with conical boss 4a, and described conical boss 4a surface is provided with guide pillar 4b.Described left piston 8 one end is provided with pilot hole 8a, and guide pillar 4b is inserted in pilot hole 8a, can ensure that left piston 8, right piston 4 are when sliding and the coaxality of axial hole 1a, are stuck to avoid piston like this.Left piston 8 the other end is provided with hemispherical groove 9.Between right piston 4 and left piston 8, spring 2 is installed, and spring 2 is enclosed within conical boss 4a.In the middle part of described right piston 4 and left piston 8, apron 3 is all installed.Described leather cup 5 is arranged on the two ends, left and right of cylinder body 1.Described right piston 4 is all provided with brake pushrod 6 with left piston 8 one end, and described brake pushrod 6 one end is provided with hemisphere 6a, and described hemisphere 6a is stuck in hemispherical groove 9.Described cylinder body 1 two ends are all provided with dust-proof cover 7, enter in cylinder body 1 for preventing dust.
Diameter 1 ~ the 2mm larger than the diameter of pilot hole 8a of described guide pillar 4b, so that guide pillar 4b inserts in pilot hole 8a smoothly.
Internal diameter 2 ~ the 3mm larger than the Outside diameter of conical boss 4a of described spring 2, thus ensure that spring 2 can not be swung by during compression.
In using process, when automobile needs braking, start braking system, now, high pressure oil enters oil inlet hole 1b from oil nozzle 1c, then enter cylinder body 1, under the impetus of high pressure oil, left piston 8 is turned left slip, right piston 4 is turned right slip, left piston 8 and right piston 4 drive brake pushrod 6, and brake pushrod 6 is slided, to reach the object of braking.When closing braking system, high pressure oil flows out in cylinder body 1, and now, left piston 8 and right piston 4 reset.
The present invention, compared with traditional wheel cylinder, has the following advantages:
(1) brake pushrod and piston adopt ball pair hinged, improve the flexibility of brake pushrod motion, reduce the difficulty of processing of manufacture;
(2) mode adopting guide pillar to match with pilot hole, ensure that the accuracy of piston when moving, avoiding the consequence caused because of seizure of piston;
(3) brake pushrod and piston separate the scheme designed, and have saved the cost manufactured, easy to install, are easy to adjustment and change.
More than show and describe basic principle of the present invention, major character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; the just principle of the present invention described in above-described embodiment and specification; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (3)
1. a combined type wheel cylinder, comprise cylinder body (1), spring (2), apron (3), right piston (4), leather cup (5), brake pushrod (6), dust-proof cover (7) and left piston (8), described cylinder body (1) is provided with axial hole (1a), described cylinder body (1) upper end is provided with oil inlet hole (1b), described oil inlet hole (1b) is provided with oil nozzle (1c), described oil nozzle (1c) left side is provided with exhaust nozzle (1d), described cylinder body (1) two ends are provided with outside thread, it is characterized in that: described right piston (4) and left piston (8) are arranged on the two ends of the axial hole (1a) of cylinder body (1) respectively, described right piston (4) one end is provided with hemispherical groove (9), and the other end is provided with conical boss (4a), and described conical boss (4a) surface is provided with guide pillar (4b), described left piston (8) one end is provided with pilot hole (8a), and the other end is provided with hemispherical groove (9), spring (2) is installed between right piston (4) and left piston (8), and spring (2) is enclosed within conical boss (4a), described right piston (4) is all provided with apron (3) with left piston (8) middle part, described leather cup (5) is arranged on the two ends, left and right of cylinder body (1), described right piston (4) and left piston (8) one end are all provided with brake pushrod (6), described brake pushrod (6) one end is provided with hemisphere (6a), and described hemisphere (6a) is stuck in hemispherical groove (9), described cylinder body (1) two ends are all provided with dust-proof cover (7).
2. a kind of combined type wheel cylinder according to claim 1, is characterized in that: the diameter 1 ~ 2mm larger than the diameter of pilot hole (8a) of described guide pillar (4b).
3. a kind of combined type wheel cylinder according to claim 1, is characterized in that: the internal diameter 2 ~ 3mm larger than the Outside diameter of conical boss (4a) of described spring (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410462262.XA CN104265808A (en) | 2014-09-11 | 2014-09-11 | Combined brake wheel cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410462262.XA CN104265808A (en) | 2014-09-11 | 2014-09-11 | Combined brake wheel cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104265808A true CN104265808A (en) | 2015-01-07 |
Family
ID=52157364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410462262.XA Pending CN104265808A (en) | 2014-09-11 | 2014-09-11 | Combined brake wheel cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104265808A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422693A (en) * | 2015-12-22 | 2016-03-23 | 芜湖恒坤汽车部件有限公司 | Brake wheel cylinder provided with guide pin |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1061601A (en) * | 1964-01-23 | 1967-03-15 | Ferodo Sa | Improvements in or relating to vehicle brakes |
| US3741338A (en) * | 1971-06-11 | 1973-06-26 | P Durand | Vertically collapsible upright for lifting gantries and the like |
| CN202381602U (en) * | 2011-03-30 | 2012-08-15 | 罗田云峰防护制品有限公司 | Automobile hydraulic brake wheel cylinder |
| CN202484154U (en) * | 2011-12-09 | 2012-10-10 | 芜湖博格汽车零部件有限公司 | Wheel cylinder assembly |
| CN203098685U (en) * | 2012-12-18 | 2013-07-31 | 芜湖恒坤汽车部件有限公司 | Rear-left brake cylinder of truck |
| CN103671648A (en) * | 2012-08-31 | 2014-03-26 | 安徽奇祥汽车零部件有限公司 | Brake limiting mechanism of brake cylinder |
-
2014
- 2014-09-11 CN CN201410462262.XA patent/CN104265808A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1061601A (en) * | 1964-01-23 | 1967-03-15 | Ferodo Sa | Improvements in or relating to vehicle brakes |
| US3741338A (en) * | 1971-06-11 | 1973-06-26 | P Durand | Vertically collapsible upright for lifting gantries and the like |
| CN202381602U (en) * | 2011-03-30 | 2012-08-15 | 罗田云峰防护制品有限公司 | Automobile hydraulic brake wheel cylinder |
| CN202484154U (en) * | 2011-12-09 | 2012-10-10 | 芜湖博格汽车零部件有限公司 | Wheel cylinder assembly |
| CN103671648A (en) * | 2012-08-31 | 2014-03-26 | 安徽奇祥汽车零部件有限公司 | Brake limiting mechanism of brake cylinder |
| CN203098685U (en) * | 2012-12-18 | 2013-07-31 | 芜湖恒坤汽车部件有限公司 | Rear-left brake cylinder of truck |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422693A (en) * | 2015-12-22 | 2016-03-23 | 芜湖恒坤汽车部件有限公司 | Brake wheel cylinder provided with guide pin |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150107 |
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| RJ01 | Rejection of invention patent application after publication |