CN203395048U - Plunger type clutch master cylinder with oil passing block - Google Patents

Plunger type clutch master cylinder with oil passing block Download PDF

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Publication number
CN203395048U
CN203395048U CN201320485136.7U CN201320485136U CN203395048U CN 203395048 U CN203395048 U CN 203395048U CN 201320485136 U CN201320485136 U CN 201320485136U CN 203395048 U CN203395048 U CN 203395048U
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CN
China
Prior art keywords
master cylinder
plunger
clutch master
type clutch
oil
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
Application number
CN201320485136.7U
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Chinese (zh)
Inventor
柏顾清
蔡微微
施明伟
吴斌
蔡兰勇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ruili Group Ruian Auto Parts Co Ltd
Original Assignee
Ruili Group Ruian Auto Parts Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ruili Group Ruian Auto Parts Co Ltd filed Critical Ruili Group Ruian Auto Parts Co Ltd
Priority to CN201320485136.7U priority Critical patent/CN203395048U/en
Application granted granted Critical
Publication of CN203395048U publication Critical patent/CN203395048U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to a clutch master cylinder, in particular to a plunger type clutch master cylinder with an oil passing block. The plunger type clutch master cylinder comprises a cylinder body (2), a main leather ring (4), an auxiliary leather ring (8) and a plunger (10). A common compensation hole type liquid inlet and return mode is changed into an oil passing block liquid inlet and return mode through improvement. When the plunger type clutch master cylinder works, the plunger (10) performs back and forth movement, the main leather ring (4) and the auxiliary leather ring (8) are located at the relatively-fixed positions and used for sealing between the plunger (10) and the cylinder body (2), the axial length of the cylinder body (2) is shorter than a common cylinder body under the conditions of the same delivery capacity and the same stroke, a required installation space is small, parts are compact and simple in structure and convenient to assemble, and accordingly the working performance and the service life of the plunger type clutch master cylinder are improved and prolonged.

Description

Be with the plunger type clutch master cylinder of oil clot
Technical field
The utility model relates to the technical field of New-energy electric vehicle steering boost system, relate in particular to a kind of with the plunger type clutch master cylinder of oil clot.
Background technique
Clutch master cylinder is the element in automotive friction formula clutch hydraulic pressure operating mechanism, it is connected with the clutch pedal in operator cabin, when driver's let slip the clutch, master cylinder plunger moves axially, in pump, working chamber volume reduces to make hydraulic pressure to rise, hydraulic pressure transfers to wheel cylinder by the brake pipe being connected with pump, at wheel cylinder active chamber hydraulic drive piston, move axially, make withdrawal fork action, withdrawal fork promotes release bearing and diaphragm spring inner ring moves forward, one group of pin and platen near diaphragm spring outside link together, platen is pulled open from clutch disk, this can make clutch plate separated from the motor rotating.Now thereby the driving and driven part of clutch is interrupted the transmission of power in separated state; Clutch pedal is when free state, and the diaphragm spring of clutch compresses platen, clutch plate, flywheel mutually, and clutch is in jointing state.The thrust that clutch master cylinder applies driver in the course of the work changes into hydraulic pressure, and clutch slave cylinder changes into thrust by hydraulic rotation, and these two elements and the oil pipe connecting therebetween add the transmission of brake fluid realizable force.
For example notice of authorization number is the Chinese model utility of CN203082064U, it discloses a kind of plunger type clutch master cylinder, comprise cylinder body, cylinder body be provided with into, oil outlet, and with enter, the plunger cavity that oil outlet is communicated with, in plunger cavity, be equipped with plunger assembly, primary cup and secontary cup are divided into oil inlet hole both sides, plunger assembly comprises plunger and Returnning spring, push rod is installed in plunger one end, the other end is installed Returnning spring, plunger contacts sealing through primary cup with secontary cup with secontary cup and with primary cup, cylinder body comprises main body cylinder block and positioning screw cap, positioning screw cap sealing is assemblied in main body cylinder block oral area, positioning screw cap is provided with the guiding cavity suitable with main body cylinder block inner chamber, the inner chamber on cavity and main body cylinder block that leads on positioning screw cap forms plunger cavity.It has solved conventional clutch master cylinder and is difficult for processing, assembles difficult problem, has easy to process and assembles easy reliable advantage.But, in this plunger type clutch, adopt common compensate opening to compensate pressure, when compensate opening occurs to stop up, the normal operation of clutch is impacted, and maintenance trouble.
Model utility content
The purpose of this utility model be to provide a kind of with the plunger type clutch master cylinder of oil clot, can meet under the condition of same displacement, stroke, the axial length of the pump housing is shorter than the common pump housing, required installing space is little, design of part is compact, simple, convenient for assembly, thereby has improved service behaviour and the working life of product.。
In order to realize above-mentioned purpose of design, the scheme that the utility model adopts is as follows:
The plunger type clutch master cylinder of oil clot, it comprises the pump housing, main apron, secondary apron and plunger, the top of the pump housing is provided with fuel inlet fitting, between described main apron and secondary apron, is provided with oil-feed ring, in the endoporus of main apron, is provided with oil clot.
Preferably, the end of described plunger is provided with ram seat.
In above-mentioned arbitrary scheme, preferably, described ram seat is provided with groove, in this groove, inserts push rod.
In above-mentioned arbitrary scheme, preferably, the other end of described push rod is placed in supporting base.
In above-mentioned arbitrary scheme, preferably, the described pump housing comprises active chamber, liquid storage cylinder and liquid outlet.
In above-mentioned arbitrary scheme, preferably, described plunger is placed in the pump housing by guide sleeve.
In above-mentioned arbitrary scheme, preferably, the joint of described plunger and the pump housing is provided with O RunddichtringO.
In above-mentioned arbitrary scheme, preferably, a side of described main apron is provided with little valve block.
In above-mentioned arbitrary scheme, preferably, a side of described secondary apron is provided with large valve block.
In above-mentioned arbitrary scheme, preferably, the described circumference of crossing oil clot was provided with oil groove.
In above-mentioned arbitrary scheme, preferably, the described degree of depth of crossing oil groove is 0.2 millimeter.
In above-mentioned arbitrary scheme, preferably, the described quantity of crossing oil groove is at least 1 road.
In above-mentioned arbitrary scheme, preferably, the described quantity of crossing oil groove is 8-16 road, is evenly distributed on the circumferential surface of oil clot.
In above-mentioned arbitrary scheme, preferably, the described pump housing adopts reinforced plastic injection molded.
In above-mentioned arbitrary scheme, preferably, described guide sleeve adopts reinforced plastic injection molded.
In above-mentioned arbitrary scheme preferably, described plunger by aluminum alloy after processing again surface hard anode oxidation process and to make.
Of the present utility model with the working procedure of plunger type clutch master cylinder of oil clot be: before work, first the fuel inlet fitting of oil storage cup and the pump housing is connected with indusion tube, in oil storage cup, add appropriate brake fluid, brake fluid flows into the pump housing through indusion tube, then by the oil-feed tank of oil-feed ring, from crossing crossing oil groove of oil clot, flow into cavity again, until fill with.Driver, by handling clutch pedal, due to the leverage of clutch pedal, is delivered to the pedaling force of amplification on the supporting base of push rod, thereby drives the push rod being fixedly connected with it, promotes plunger assembly axial motion.When having served as oil clot and crossing main apron, the parts such as the pump housing, main apron, plunger have formed an enclosed cavity communicating with clutch pipeline; In the process that continues to move forward at plunger, the volume in this enclosed cavity diminishes gradually, and intracavity liquid pressure increases gradually, forces liquid to flow to hydraulic pipe line from liquid outlet, thereby flows into the clutch slave cylinder being connected with oil pipe and realize clutch separation.
When driver unclamps clutch pedal, the rapid return of plunger, brake fluid in wheel cylinder and oil pipe backflows to master cylinder active chamber by pump housing bottom liquid outlet again, because the cross-section area of plunger is far longer than the cross-section area of pipeline, the left space of the discontented plunger return of liquid filling of refluxing, in cavity, produce certain degree of vacuum, both sides at main apron can produce certain pressure difference, the brake fluid of liquid storage cylinder is under the effect of this pressure difference, inner lip by main apron flows in active chamber, for work and prepare next time rapidly; Plunger is returned to behind home position, and the brake fluid in wheel cylinder and oil pipe all flows back to active chamber through liquid outlet, and now in active chamber, unnecessary brake fluid is back to liquid storage cylinder by the oil groove of crossing of crossing on oil clot, finally enters in lubricating cup, so completes a work cycle.
Accompanying drawing explanation
Fig. 1 for according to of the present utility model with the main sectional view of plunger type clutch master cylinder of oil clot.
Fig. 2 be according to the band shown in Fig. 1 of the present utility model the plan view of a preferred embodiment of plunger type clutch master cylinder of oil clot.
Fig. 3 be according to the band shown in Fig. 1 of the present utility model the side view of a preferred embodiment of plunger type clutch master cylinder of oil clot.
Fig. 4 be according to the band shown in Fig. 1 of the present utility model the partial enlarged drawing at I place in the plunger type clutch master cylinder of oil clot.
Fig. 5 be according to the band shown in Fig. 1 of the present utility model cross the structural representation of oil clot in the plunger type clutch master cylinder of oil clot.
Fig. 6 is according to the sectional view of the A-A direction of crossing oil clot shown in Fig. 5 of the present utility model.
Number in the figure explanation:
Dust cover 1, the pump housing 2, crosses oil clot 3, crosses oil groove 31, main apron 4, little valve block 5, oil-feed ring 6, large valve block 7, secondary apron 8, O RunddichtringO 9, plunger 10, guide sleeve 11, ram seat 12, push rod 13, supporting base 14, wire circlip 15, lining 16, active chamber 17, liquid storage cylinder 18, liquid outlet 19.
Embodiment
For understand better according to of the present utility model with the plunger type clutch master cylinder of oil clot, below in conjunction with accompanying drawing describe according to of the present utility model with the specific embodiment of plunger type clutch master cylinder of oil clot.
With reference to figure 1, according to of the present utility model with the main sectional view of plunger type clutch master cylinder of oil clot.A kind of with the plunger type clutch master cylinder of oil clot, it comprises the pump housing 2, main apron 4, secondary apron 8 and plunger 10, the top of the pump housing 2 is provided with fuel inlet fitting 21, before work, first oil storage cup is connected with fuel inlet fitting 21 use indusion tubes, in oil storage cup, add appropriate brake fluid, brake fluid flows into the pump housing through indusion tube, between described main apron 4 and secondary apron 8, is provided with oil-feed ring 6, is provided with oil clot 3 in the endoporus of main apron 4.
Preferably, described plunger 10 end is provided with ram seat 12.
In the present embodiment, described ram seat 12 is provided with groove, inserts push rod 13 in this groove.
In the present embodiment, the other end of described push rod 13 is placed in supporting base 14.
In the present embodiment, the described pump housing 2 comprises active chamber 17, liquid storage cylinder 18 and liquid outlet 19.
In the present embodiment, described plunger 10 is placed in the pump housing 2 by guide sleeve 11.Under the effect of guide sleeve 11, when pilot control clutch pedal, plunger 10 can move along guide sleeve 11 path in the cavity of the pump housing 2.
In the present embodiment, the described pump housing 2 and guide sleeve 11 all adopt reinforced plastic injection molded, its have lightweight, manufacturing efficiency is high and the feature of stable performance.
In the present embodiment, described plunger 10 by aluminum alloy after processing again surface hard anode oxidation process and to make, the convenient control of parameter that its geometric accuracy, roughness etc. are important.
In the present embodiment, described plunger 10 is provided with O RunddichtringO 9 with the joint of the pump housing 2.
In the present embodiment, described liquid outlet 19 is provided with dust cover 1, during this dust cover 1 entrucking, will take off, and just in the situation that there is no entrucking, prevents that dust from entering in cylinder body.
In the present embodiment, described liquid outlet 19 adopts wire circlip 15 that delivery connection is fixed on to liquid outlet 19 outlet port in discharge opeing.
In the present embodiment, a side of described main apron 4 is provided with little valve block 5.Fluid in oil storage cup enters into liquid storage cylinder 18 by fuel inlet fitting 21 through oil-feed ring 6; fluid in liquid storage cylinder 18 enters into active chamber 17 by crossing the oil groove 31 of crossing of oil clot 3; in this process; shoe cream room 18 and active chamber 17 fluid communicate, and protect the effect of main apron 4 when little valve block 5 plays work.
In the present embodiment, a side of described secondary apron 8 is provided with large valve block 7.When driver unclamps clutch pedal, the rapid return of plunger 10, brake fluid in wheel cylinder and oil pipe backflows to master cylinder active chamber by pump housing bottom liquid outlet 19 again, because the cross-section area of plunger 10 is far longer than the cross-section area of pipeline, the left space of discontented plunger 10 returns of liquid filling of refluxing, in cavity, produce certain degree of vacuum, both sides at main apron 4 can produce certain pressure difference, the brake fluid of liquid storage cylinder 18 is under the effect of this pressure difference, inner lip by main apron 4 flows in active chamber 17, for work and prepare next time rapidly; Plunger 10 is returned to behind home position, brake fluid in wheel cylinder and oil pipe all flows back to active chamber through liquid outlet, now in active chamber 17, unnecessary brake fluid is back to liquid storage cylinder 18 by the oil groove 31 of crossing of crossing on oil clot 3, finally enters in lubricating cup, and now shoe cream room 18 and active chamber 17 fluid communicate.
In the present embodiment, main apron 4 is for the sealing between plunger 10 and the pump housing 2, thereby forms main apron 4 to the active chamber between pump housing bottom; Secondary apron 8 is for the sealing between plunger 10 and the pump housing 2, thereby forms secondary apron 8 to the liquid storage cylinder 18 between main apron 4.
Next consult shown in Fig. 2, of the present utility model with the side view of plunger type clutch master cylinder of oil clot.In the present embodiment, the pump housing 2 outsides are provided with otic placode, have pilot hole on otic placode, and the pump housing 2 inner chambers comprise active chamber 17, liquid storage cylinder 18 and liquid outlet 19, wherein active chamber 17, liquid storage cylinder 18 and liquid outlet 19 are communicated with, and pilot hole is for being arranged on clutch master cylinder at the position needing.When plunger 10 moves axially in the pump housing 2, active chamber 17 forms airtight cavities, and the brake fluid forcing in active chamber that increases of active chamber internal pressure flows into oil pipes through liquid outlet 19, and then the clutch slave cylinder that is connected with oil pipe of inflow realize clutch separation; During plunger 10 return, the brake fluid in wheel cylinder and oil pipe backflows to the active chamber 17 of the pump housing 2 by liquid outlet 19 again, and the brake fluid in liquid storage cylinder 18 flows in active chamber 17 by main apron 4 inner lips, realizes repairing; Plunger 10 is returned to behind home position, brake fluid in wheel cylinder and oil pipe flows into active chamber 17 again through liquid outlet 19, and then make the brake fluid of liquid storage cylinder 18 inflow active chambers be back to liquid storage cylinder 18 to lubricating cup by crossing the oil groove 31 of crossing of oil clot 3, so complete a work cycle.
In pilot hole on the pump housing 2 outside otic placodes, be provided with lining 16 in the present embodiment, and then adopt to be threaded clutch master cylinder is arranged on to the position needing.This lining 16 has played the bolt looseness effect that prevents.
In the present embodiment, plunger 10 is provided with O RunddichtringO 9 with the joint of the pump housing 2.Inner chamber and the external world at the effect lower pump body 2 of O type sealing 9 completely cut off, and plunger 10 moves along guide sleeve 11 under the effect of push rod 13.
As shown in Figure 4, the partial enlarged drawing at I place in Fig. 1.In the inner chamber of the pump housing 2, be provided with main apron 4, oil-feed ring 6, cross oil clot 3 and secondary apron 8.Wherein crossing oil clot 3 is nested in main apron 4, when pilot control clutch pedal, push rod 13 moves in the cavity of the pump housing 2 promoting plunger 10, at this moment the fluid in oil storage cup enters into liquid storage cylinder 18 by oil-feed ring 6, and then enter into active chamber 17 by crossing the oil groove 31 of crossing of oil clot 3, when having served as oil clot 3 and having crossed main apron 4, enclosed cavities that communicate with clutch pipeline of formation such as the pump housing 2, main apron 4 and plunger 10.
Finally consult shown in Fig. 5-Fig. 6, of the present utility model with cross the structural representation of oil clot in the plunger type clutch master cylinder of oil clot.In the present embodiment, the described circumference of crossing oil clot 3 was provided with oil groove 31.
In the present embodiment, the described degree of depth of crossing oil groove 31 is 0.2 millimeter.
In the present embodiment, the described quantity of crossing oil groove 31 is at least 1 road.
In the present embodiment, the described quantity of crossing oil groove 31 is 8-16 road, is evenly distributed on the circumferential surface of oil clot 3.
Of the present utility model with the working procedure of plunger type clutch master cylinder of oil clot be: before work, first oil storage cup is connected with indusion tube with the fuel inlet fitting of the pump housing 2, in oil storage cup, add appropriate brake fluid, brake fluid flows into the pump housing 2 through indusion tube, then by the oil-feed tank of oil-feed ring 6, from crossing crossing oil groove 31 of oil clot 3, flow into cavity again, until fill with.Driver, by handling clutch pedal, due to the leverage of clutch pedal, is delivered to the pedaling force of amplification on the supporting base 14 of push rod, thereby drives the push rod 13 being fixedly connected with it, promotes plunger 10 assembly axial motions.When having served as oil clot 3 and crossing main apron 4, the parts such as the pump housing 2, main apron 4, plunger 10 have formed an enclosed cavity communicating with clutch pipeline; In the process that continues to move forward at plunger 10, the volume in this enclosed cavity diminishes gradually, and intracavity liquid pressure increases gradually, forces liquid to flow to hydraulic pipe line from liquid outlet 19, thereby flows into the clutch slave cylinder being connected with oil pipe and realize clutch separation.
When driver unclamps clutch pedal, the rapid return of plunger 10, brake fluid in wheel cylinder and oil pipe backflows to master cylinder active chamber by pump housing bottom liquid outlet 19 again, because the cross-section area of plunger 10 is far longer than the cross-section area of pipeline, the left space of discontented plunger 10 returns of liquid filling of refluxing, in cavity, produce certain degree of vacuum, both sides at main apron 4 can produce certain pressure difference, the brake fluid of liquid storage cylinder 18 is under the effect of this pressure difference, inner lip by main apron 4 flows in active chamber 17, for work and prepare next time rapidly; Plunger 10 is returned to behind home position, brake fluid in wheel cylinder and oil pipe all flows back to active chamber through liquid outlet, now in active chamber 17, unnecessary brake fluid is back to liquid storage cylinder 18 by the oil groove 31 of crossing of crossing on oil clot 3, finally enters in lubricating cup, so completes a work cycle.
It will be apparent to those skilled in the art that of the present utility model with the plunger type clutch master cylinder of oil clot comprise the combination in any of each several part in this specification.As space is limited and in order to make specification simple and clear, at this, these combinations not to be introduced one by one in detail, but seen after this specification, the scope of the present utility model that the combination in any of the each several part consisting of this specification forms is self-evident.

Claims (16)

  1. One kind with the plunger type clutch master cylinder of oil clot, it comprises the pump housing (2), main apron (4), secondary apron (8) and plunger (10), the top of the pump housing (2) is provided with fuel inlet fitting (21), it is characterized in that: between described main apron (4) and secondary apron (8), be provided with oil-feed ring (6), in the endoporus of main apron (4), be provided with oil clot (3).
  2. As claimed in claim 1 with the plunger type clutch master cylinder of oil clot, it is characterized in that: the end of described plunger (10) is provided with ram seat (12).
  3. As claimed in claim 2 with the plunger type clutch master cylinder of oil clot, it is characterized in that: described ram seat (12) is provided with groove, in this groove, insert push rod (13).
  4. As claimed in claim 3 with the plunger type clutch master cylinder of oil clot, it is characterized in that: the other end of described push rod (13) is placed in supporting base (14).
  5. As claimed in claim 1 with the plunger type clutch master cylinder of oil clot, it is characterized in that: the described pump housing (2) comprises active chamber (17), liquid storage cylinder (18) and liquid outlet (19).
  6. As claimed in claim 1 with the plunger type clutch master cylinder of oil clot, it is characterized in that: described plunger (10) is placed in the pump housing (2) by guide sleeve (11).
  7. As claimed in claim 6 with the plunger type clutch master cylinder of oil clot, it is characterized in that: described plunger (10) is provided with O RunddichtringO (9) with the joint of the pump housing (2).
  8. As claimed in claim 1 with the plunger type clutch master cylinder of oil clot, it is characterized in that: a side of described main apron (4) is provided with little valve block (5).
  9. As claimed in claim 1 with the plunger type clutch master cylinder of oil clot, it is characterized in that: a side of described secondary apron (8) is provided with large valve block (7).
  10. As claimed in claim 1 with the plunger type clutch master cylinder of oil clot, it is characterized in that: the described circumference of crossing oil clot (3) was provided with oil groove (31).
  11. 11. as claimed in claim 10 with the plunger type clutch master cylinder of oil clot, it is characterized in that: the described degree of depth of crossing oil groove (31) is 0.2 millimeter.
  12. 12. as claimed in claim 1 with the plunger type clutch master cylinder of oil clot, it is characterized in that: the described quantity of crossing oil groove (31) is at least 1 road.
  13. 13. as claimed in claim 10 with the plunger type clutch master cylinder of oil clot, it is characterized in that: the described quantity of crossing oil groove (31) is 8-16 road, is evenly distributed on the circumferential surface of oil clot (3).
  14. 14. bands as described in claim 1 or 5 the plunger type clutch master cylinder of oil clot, it is characterized in that: the described pump housing (2) adopts reinforced plastic injection molded.
  15. 15. as claimed in claim 6 with the plunger type clutch master cylinder of oil clot, it is characterized in that: described guide sleeve (11) adopts reinforced plastic injection molded.
  16. 16. bands as described in claim 1 or 6 the plunger type clutch master cylinder of oil clot, it is characterized in that: described plunger (10) by aluminum alloy after processing again surface hard anode oxidation process and make.
CN201320485136.7U 2013-08-09 2013-08-09 Plunger type clutch master cylinder with oil passing block Expired - Fee Related CN203395048U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320485136.7U CN203395048U (en) 2013-08-09 2013-08-09 Plunger type clutch master cylinder with oil passing block

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320485136.7U CN203395048U (en) 2013-08-09 2013-08-09 Plunger type clutch master cylinder with oil passing block

Publications (1)

Publication Number Publication Date
CN203395048U true CN203395048U (en) 2014-01-15

Family

ID=49906583

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201320485136.7U Expired - Fee Related CN203395048U (en) 2013-08-09 2013-08-09 Plunger type clutch master cylinder with oil passing block

Country Status (1)

Country Link
CN (1) CN203395048U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104260716A (en) * 2014-07-19 2015-01-07 芜湖恒坤汽车部件有限公司 Oil nozzle for pump
CN108691920A (en) * 2017-04-05 2018-10-23 天津市松正电动汽车技术股份有限公司 Hydraulic clutch executing agency

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104260716A (en) * 2014-07-19 2015-01-07 芜湖恒坤汽车部件有限公司 Oil nozzle for pump
CN108691920A (en) * 2017-04-05 2018-10-23 天津市松正电动汽车技术股份有限公司 Hydraulic clutch executing agency

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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: 20140115

Termination date: 20190809