CN102979839B - Brake tap changer for hydraulic retarder - Google Patents
Brake tap changer for hydraulic retarder Download PDFInfo
- Publication number
- CN102979839B CN102979839B CN201210478064.3A CN201210478064A CN102979839B CN 102979839 B CN102979839 B CN 102979839B CN 201210478064 A CN201210478064 A CN 201210478064A CN 102979839 B CN102979839 B CN 102979839B
- Authority
- CN
- China
- Prior art keywords
- oil
- tap changer
- oil pocket
- hole
- piston
- 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
Links
- 238000000605 extraction Methods 0.000 claims description 9
- 230000035945 sensitivity Effects 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 96
- 239000002828 fuel tank Substances 0.000 description 9
- 230000005855 radiation Effects 0.000 description 9
- 239000000446 fuel Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Transmission Of Braking Force In Braking Systems (AREA)
Abstract
The invention discloses a brake tap changer for a hydraulic retarder. The brake tap changer comprises a shell, an oil chamber A, an oil chamber B, and an oil chamber C which are arranged in the shell, wherein an external oil drain hole, an external booster oil inlet and an oil drain hole 7 as well as an oil drain switch, a tap changer A and a tap changer B which penetrate through the shell are arranged on the front surface of the shell, and a work chamber oil drain hole, an oil inlet A, an oil inlet B, a pressure relief hole A and a pressure relief hole B are arranged on the back surface of the shell; the oil drain switch corresponds to the work chamber oil drain hole, and the tap changer A and the tap changer B correspond to the pressure relief hole A and the pressure relief hole B; and a separating switch is arranged in the oil cavity B. The brake tap changer provided by the invention has the advantages of skillful design, compact size and stable work, and oil can be quickly supplied to the hydraulic retarder by using the tap changer, so that the sensitivity and the speed of response are improved, and the braking is smooth; and meanwhile, a return spring has a moderate length, so that the phenomenon that the spring is stuck is avoided, so that the work state is stable, and the failure rate is low.
Description
Technical field
The present invention relates to a kind of hydrodynamic retarder, particularly a kind of for the brake tap changer on hydrodynamic retarder.
Background technique
The patent of invention that a kind of name is called mechanical supercharging adjustment hydraulic turbine retarder is disclosed on CN201896889U, on this hydrodynamic retarder, be respectively arranged with oil-feed tap changer, drain cock and tap changer, although they can play separately oil-feed, active chamber oil extraction and regulate the effect of active chamber internal pressure, still there is following deficiency in such structure:
1, owing to being independently to arrange, cause them to take more shell space, the area of housing is increased, inconvenience is not only installed, and makes manufacture cost higher;
2, because being, these three kinds of switches point are arranged, and too far away for connecting oil duct standoff distance between them, affect fuel feeding usefulness, in the time of fuel feeding, there is certain delay, cause hydrodynamic retarder sluggish;
3, because tap changer is made up of the through hole on the sidewall of switch sleeve, spring, steel ball, bolt and switch sleeve rear end, structure is too simple, causes in the time of pressure regulation, and pressure regulation dynamics inaccuracy, makes brake not steady;
4, because drain cock is to be positioned at housing, in the time of work, produce high temperature, under hot environment, easily cause the Sealing of piston aging, cause drain cock easily to produce the problem of leakage of oil;
5, because the position design of oil-feed tap changer is unreasonable, housing is in the time of outside oil extraction, be subject to the obstruction of fuel oil feed regulation switch, make housing produce high temperature, braking effect reduces, and, because the spring of oil-feed tap changer is long, easily there is stuck phenomenon, cause spring failure, make oil-feed tap changer in running order for a long time, thereby cause hydrodynamic retarder always in braking state.
Summary of the invention
Object of the present invention is just to provide that a kind of braking efficiency is high, stable working, volume are small and exquisite for the brake tap changer on hydrodynamic retarder.
The object of the invention is to realize by such technological scheme, a kind of for the brake tap changer on hydrodynamic retarder, it comprises housing;
Independently oil pocket A in housing and the oil pocket B being interconnected and oil pocket C;
On the front of housing, be provided with the external oil drainage hole being communicated with oil pocket A, oil pocket B and oil pocket C respectively, external afterburning oil inlet hole and oil drainage hole, and all penetrate housing and respectively through drain cock and tap changer A, the tap changer B of oil pocket A and oil pocket C;
The relief hole A and the relief hole B that are provided with the active chamber oil drainage hole being communicated with oil pocket A, the oil inlet hole A being communicated with oil pocket B and oil inlet hole B at the back side of housing and are communicated with oil pocket C,
Wherein, drain cock is corresponding with active chamber oil drainage hole, and tap changer A is corresponding with relief hole A and relief hole B with tap changer B;
In described oil pocket B, be provided with separating switch.
Wherein, described separating switch comprises oil-feed tap changer cover, oil-feed tap changer piston, oil-feed tap changer valve and the return spring of cross setting, described oil-feed tap changer cover stretches into housing and is connected with housing, described oil-feed tap changer piston is positioned at oil-feed tap changer cover and is connected with one end of oil-feed tap changer valve, the other end of described oil-feed tap changer valve withstands on one end of return spring, and the other end of return spring withstands on the inwall of oil pocket C.
Further, described tap changer A comprises piston valve, spring, piston and tap changer cover, one end of described piston valve withstands on relief hole A place, the other end penetrates in tap changer cover, described piston is positioned at tap changer cover, and one end penetrates in spring, described spring is positioned at the described drain cock of piston valve and comprises oil extraction piston and drain cock cover, and described oil extraction piston is positioned at drain cock cover.
Owing to having adopted technique scheme, the present invention has advantages of that structural design is ingenious, volume is small and exquisite, working stability, adopt it to carry out fuel feeding to retarder fast, improve sensitivity and reaction velocity, made brake steadily, simultaneously, due to return spring moderate length, prevent the generation of spring stuck phenomenon, made stable working state, failure rate is low.
Brief description of the drawings
Brief description of the drawings of the present invention is as follows:
Fig. 1 is structural representation of the present invention;
Fig. 2 is the rear view of Fig. 1;
Fig. 3 is the plan view of Fig. 1;
Fig. 4 is the A-A sectional block diagram of Fig. 3;
Fig. 5 is the B-B sectional view of Fig. 1;
Fig. 6 is the C-C sectional view of Fig. 1;
Fig. 7 is the D-D sectional view of Fig. 1.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail, but the present invention is not limited to these mode of executions, any improvement on the present embodiment essence spirit or substitute, still belongs to the claims in the present invention scope required for protection.
Embodiment 1: as shown in Figure 1,2,3, 4, a kind of for the brake tap changer on hydrodynamic retarder, it is characterized in that: it comprises
Housing 1;
Independently oil pocket A2 in housing 1 and the oil pocket B3 being interconnected and oil pocket C4;
On the front of housing 1, be provided with the external oil drainage hole 5 being communicated with oil pocket A2, oil pocket B3 and oil pocket C4 respectively, external afterburning oil inlet hole 6 and oil drainage hole 7, and all penetrate housing 1 and respectively through drain cock 8 and tap changer A9, the tap changer B10 of oil pocket A2 and oil pocket C4;
The relief hole A14 and the relief hole B15 that are provided with the active chamber oil drainage hole 11 being communicated with oil pocket A2, the oil inlet hole A12 being communicated with oil pocket B3 and oil inlet hole B13 at the back side of housing 1 and are communicated with oil pocket C4,
Wherein, drain cock 8 is corresponding with active chamber oil drainage hole 11, and tap changer A9 is corresponding with relief hole A14 and relief hole B15 with tap changer B10;
In described oil pocket B3, be provided with separating switch 16.
As shown in Figure 5, separating switch 16 of the present invention comprises oil-feed tap changer cover 17, oil-feed tap changer piston 18, oil-feed tap changer valve 19 and the return spring 20 of cross setting, described oil-feed tap changer cover 17 stretches into housing 1 and is connected with housing 1, described oil-feed tap changer piston 18 is positioned at oil-feed tap changer cover 17 and is connected with one end of oil-feed tap changer valve 19, the other end of described oil-feed tap changer valve 19 withstands on one end of return spring 20, and the other end of return spring 20 withstands on the inwall of oil pocket C4.
As shown in Figure 6, described tap changer A9 of the present invention comprises piston valve 21, spring 22, piston 23 and tap changer cover 24, one end of described piston valve 21 withstands on relief hole A14 place, the other end penetrates in tap changer cover 24, described piston 23 is positioned at tap changer cover 24, and one end penetrates in spring 22, described spring 22 is positioned at piston valve 21.In the present invention, tune switch A9 is identical with the structure of tap changer B10, does not repeat them here the structure of tap changer B10.
As shown in Figure 7, described drain cock 8 comprises oil extraction piston 25 and drain cock cover 26, and described oil extraction piston 25 is positioned at drain cock cover 26.
The present invention is work like this: oil drainage hole 7, oil inlet hole B13, relief hole A14, relief hole B15, external afterburning oil inlet hole 6 and external oil drainage hole 5 are all communicated with external heat radiation fuel tank;
Oil inlet hole A12 is communicated with the active chamber oil inlet hole of retarder; Active chamber oil drainage hole 11 is communicated with the oil drainage hole of the active chamber of retarder;
In the time that the present invention does not work, separating switch 16 and drain cock 8 are not worked, and now, tap changer A9, tap changer B10, relief hole A14 and relief hole B15 all close, outwards draining; Oil in external heat radiation fuel tank enters in oil pocket B3 through oil inlet hole B13, and now oil-feed tap changer piston 18 is opened, and oil is expelled back into again in external heat radiation fuel tank from the oil drainage hole 7 of oil pocket C4 by oil pocket B3, so just forms and circulates.
In the time that the present invention works, separating switch 16 and drain cock 8 are worked; Oil in external heat radiation fuel tank enters in oil pocket B3 through oil inlet hole B13, now, separating switch 16 is worked, oil-feed tap changer piston 18 is closed, oil pocket B3 and oil pocket C4 close, working oil can only enter in the active chamber of retarder by oil inlet hole A12, makes retarder play slow effect.
In the time that needs pressurize to retarder, can pressurize to the active chamber of retarder by external afterburning oil inlet hole 6; Working oil enters in oil pocket B3 by external afterburning oil inlet hole 6, and because oil pocket B3 and oil pocket C4 close, now, this working oil is by the oil inlet hole A12 being communicated with oil pocket B3, enters in the active chamber of retarder retarder is pressurizeed.
Excessive when pressure, the pressure in its active chamber is greater than tap changer A9 or/and when tap changer B10, tap changer A9 or/and tap changer B10 open, working oil by relief hole A9 or/and relief hole B10 be discharged in external heat radiation fuel tank.
After retarder work completes, separating switch 16 and drain cock 8 are not worked, oil extraction piston 25 in drain cock 8 is opened, working oil in the active chamber of retarder enters into oil pocket A2 through active chamber oil drainage hole 11, is entered in external heat radiation fuel tank and is dispelled the heat by the external oil drainage hole 5 being communicated with oil pocket A2; Simultaneously, the oil-feed tap changer piston 18 of separating switch 16 is opened, oil pocket B3 and oil pocket C4 are communicated with, working oil in external heat radiation fuel tank enters in oil pocket C4 through the oil inlet hole B13 of oil pocket B3, be expelled back into again in external heat radiation fuel tank from oil drainage hole 7 by oil pocket C4, now, tap changer A9 and tap changer B10 all close, relief hole A14 and the relief hole B15 working oil that can not leak, can only be discharged to external heat radiation fuel tank by oil drainage hole 7 and carry out circulation cooling.
Claims (4)
1. for the brake tap changer on hydrodynamic retarder, it is characterized in that: it comprises
Housing (1);
Independently oil pocket A(2 in housing (1)) and the oil pocket B(3 that is interconnected) and oil pocket C(4);
On the front of housing (1), be provided with and oil pocket A(2) the external oil drainage hole (5) that is communicated with, with oil pocket B(3) be communicated with external afterburning oil inlet hole (6), with oil pocket C(4) oil drainage hole (7) that is communicated with, and all penetrate housing (1) and through oil pocket A(2) drain cock (8) and through oil pocket C(4) tap changer A(9), tap changer B(10);
Be provided with and oil pocket A(2 at the back side of housing (1)) the active chamber oil drainage hole (11) that is communicated with, with oil pocket B(3) the oil inlet hole A(12 that is communicated with) and oil inlet hole B(13) and with oil pocket C(4) the relief hole A(14 that is communicated with) and relief hole B(15),
Wherein, drain cock (8) is corresponding with active chamber oil drainage hole (11), tap changer A(9) and tap changer B(10) with relief hole A(14) and relief hole B(15) corresponding;
At described oil pocket B(3) in be provided with separating switch (16).
2. as claimed in claim 1 for the brake tap changer on hydrodynamic retarder, it is characterized in that: described separating switch (16) comprises the oil-feed tap changer cover (17) of cross setting, oil-feed tap changer piston (18), oil-feed tap changer valve (19) and return spring (20), described oil-feed tap changer cover (17) stretches into housing (1) and is connected with housing (1), described oil-feed tap changer piston (18) is positioned at oil-feed tap changer cover (17) and is connected with one end of oil-feed tap changer valve (19), the other end of described oil-feed tap changer valve (19) withstands on one end of return spring (20), the other end of return spring (20) withstands on oil pocket C(4) inwall on.
3. as claimed in claim 2 for the brake tap changer on hydrodynamic retarder, it is characterized in that: described tap changer A(9) comprise piston valve (21), spring (22), piston (23) and tap changer cover (24), one end of described piston valve (21) withstands on relief hole A(14) locate, the other end penetrates in tap changer cover (24), described piston (23) is positioned at tap changer cover (24), and one end penetrates in spring (22), and described spring (22) is positioned at piston valve (21).
4. as claimed in claim 3 for the brake tap changer on hydrodynamic retarder, it is characterized in that: described drain cock (8) comprises oil extraction piston (25) and drain cock cover (26), and described oil extraction piston (25) is positioned at drain cock cover (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210478064.3A CN102979839B (en) | 2012-11-22 | 2012-11-22 | Brake tap changer for hydraulic retarder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210478064.3A CN102979839B (en) | 2012-11-22 | 2012-11-22 | Brake tap changer for hydraulic retarder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102979839A CN102979839A (en) | 2013-03-20 |
| CN102979839B true CN102979839B (en) | 2014-11-26 |
Family
ID=47854121
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210478064.3A Expired - Fee Related CN102979839B (en) | 2012-11-22 | 2012-11-22 | Brake tap changer for hydraulic retarder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102979839B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2226667Y (en) * | 1994-10-23 | 1996-05-08 | 凤文成 | Main pressure regulating valve for hydraulic transmission power gear shift variable speed case |
| EP1338834A2 (en) * | 2002-02-21 | 2003-08-27 | Laizhou Hardware Machinery Co., Ltd. | A hydraulic control valve used for firewood splitter |
| CN201190706Y (en) * | 2008-04-02 | 2009-02-04 | 刘浩明 | Multiple directional control valve |
| CN201934408U (en) * | 2010-12-23 | 2011-08-17 | 山东临工工程机械有限公司 | Flow conversion controlling valve |
| CN202914592U (en) * | 2012-11-22 | 2013-05-01 | 重庆津德福科技开发有限公司 | Brake pressure regulating switch for hydrodynamic retarder |
-
2012
- 2012-11-22 CN CN201210478064.3A patent/CN102979839B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2226667Y (en) * | 1994-10-23 | 1996-05-08 | 凤文成 | Main pressure regulating valve for hydraulic transmission power gear shift variable speed case |
| EP1338834A2 (en) * | 2002-02-21 | 2003-08-27 | Laizhou Hardware Machinery Co., Ltd. | A hydraulic control valve used for firewood splitter |
| CN201190706Y (en) * | 2008-04-02 | 2009-02-04 | 刘浩明 | Multiple directional control valve |
| CN201934408U (en) * | 2010-12-23 | 2011-08-17 | 山东临工工程机械有限公司 | Flow conversion controlling valve |
| CN202914592U (en) * | 2012-11-22 | 2013-05-01 | 重庆津德福科技开发有限公司 | Brake pressure regulating switch for hydrodynamic retarder |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102979839A (en) | 2013-03-20 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190214 Address after: 402247 Shuangfu Industrial Park Demolition and Resettlement Complex Building Area A, Jiangjin District, Chongqing Patentee after: CHONGQING XINLING CHUANGFU PHOTOELECTRIC SCIENCE & TECHNOLOGY Co.,Ltd. Address before: 402260 Building 13, Phase II, Degan Industrial Park, Jiangjin District, Chongqing Patentee before: CHONGQING JINDEFU SCIENCE & TECHNOLOGY DEVELOPMENT Co.,Ltd. |
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| 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: 20141126 |