CN201808667U - Special valve group for hydraulic steering engine - Google Patents
Special valve group for hydraulic steering engine Download PDFInfo
- Publication number
- CN201808667U CN201808667U CN2010205397700U CN201020539770U CN201808667U CN 201808667 U CN201808667 U CN 201808667U CN 2010205397700 U CN2010205397700 U CN 2010205397700U CN 201020539770 U CN201020539770 U CN 201020539770U CN 201808667 U CN201808667 U CN 201808667U
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- valve
- hydraulic
- sequence
- oil inlet
- check valve
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Abstract
The utility model discloses a special valve group for a hydraulic steering engine, comprising a first oil inlet and a second oil inlet which are connected with the feeding end of a hydraulic rudder pushing mechanism, a first check valve and a second check valve which are respectively connected with the first oil inlet and the second oil inlet in series, and a first relief valve and a second relief valve which are respectively connected with the feeding end of the hydraulic rudder pushing mechanism in parallel, wherein the first check valve and the second check valve are respectively connected with a first sequence valve and a second sequence valve in parallel to form a left balance valve and a right balance valve. The special valve group for the hydraulic steering engine further comprises a J-type three-position four-way electromagnetic directional valve which can reduce the oil leakage; the first sequence valve is connected with the second sequence valve through the J-type three-position four-way electromagnetic directional valve; and the feeding end of the hydraulic rudder pushing mechanism is connected with a third check valve and a fourth check valve in parallel to form a shuttle valve, wherein the third check valve and the fourth check valve are connected in series. The special valve group for the hydraulic steering engine still can be used when the specification of the hydraulic steering engine is above 500KN.M, and has the characteristics of isolating, stabilizing the rudder and overcoming the negative moment.
Description
Technical field
The utility model relates to a kind of hydraulic system structure valve group, what be specifically related to is a kind of hydraulic sterring engine special service valve group.
Background technology
Homemade hydraulic sterring engine specification all has the steering wheel special service valve group that latus rectum is 10-20mm below 450KN.M, to reach isolation, steady rudder and to overcome the purpose of negative moment.But because flow surpasses 120l/min, having exceeded latus rectum is the flow range of 20mm steering wheel special service valve group, causes and can't use for the above hydraulic sterring engine of specification 500KN.M.
In order to reach isolation, steady rudder and to overcome the purpose of negative moment, at present can only foreign imitation high pulling torque steering wheel, adopt the double hydraulic control check valve to add the pattern (referring to Fig. 1) of bidirectional relief valve, this kind method since for negative moment what overcome employing is the cone valve form, therefore the flow of system is not steady, is easy to generate very big hydraulic vibration, not only makes system produce very big noise, and vibration is easy to cause the fatigue of spring and fractures for a long time, thereby forfeiture is isolated and the function of steady rudder.
The utility model content
At the deficiency that exists on the prior art, the utility model purpose is the specification still operable hydraulic sterring engine special service valve group more than 500KN.M that is to provide a kind of hydraulic sterring engine, to reach isolation, steady rudder and to overcome the purpose of negative moment.
To achieve these goals, the utility model is to realize by the following technical solutions:
The utility model comprises and hydraulic pressure steering mechanism inlet side bonded assembly first oil inlet and second oil inlet, with first oil inlet and second oil inlet series connected first check valve of difference and second check valve and first by pass valve and second by pass valve in parallel respectively with hydraulic pressure steering mechanism inlet side, be parallel with first sequence valve and second sequence valve on first check valve and second check valve respectively and constitute left balance cock and right balance cock, also comprise the J type 3-position 4-way solenoid directional control valve that can reduce the leakage of oil amount, first sequence valve is connected with second sequence valve by J type 3-position 4-way solenoid directional control valve, is parallel with two series connected the 3rd check valves and the 4th check valve in hydraulic pressure steering mechanism inlet side and forms shuttle valve.Two balance cocks overcome negative moment, use be the throttling of cylinder right angle, therefore in overcoming the process of negative moment, can make spool gently move to equilibrium point soon.But because the throttling of cylinder right angle has certain spillage,, increase J type three position four-way electromagnetic valve, make the control mouth of system's two balance cocks when not steering directly connect fuel tank, reached the effect of steady rudder in order to reduce spillage.
Above-mentioned hydraulic sterring engine special service valve group also comprises the heat radiation flush valve, the heat radiation flush valve comprise the 3-position 4-way hydraulic operated valve and with the series connected flow regulating valve of 3-position 4-way hydraulic operated valve one end, the other end of flow regulating valve is connected with the other end of J type 3-position 4-way solenoid directional control valve and takes back fuel tank, and the other two ends of 3-position 4-way hydraulic operated valve are connected in parallel on hydraulic pressure steering mechanism inlet side.What adopt in the heat radiation flush valve is not the pattern that current in the world 3-position 4-way hydraulic operated valve adds by pass valve, but adopt the 3-position 4-way hydraulic operated valve to add the pattern of flow regulating valve, employing flow regulating valve replacement by pass valve can improve the contamination resistance of valve member, thereby the control of the system of assurance is more reliable.This heat radiation flush valve makes when the control pattern of pump group is pump control type closed system, better system dispelled the heat and cleans.
The spool of the first above-mentioned sequence valve and second sequence valve and J type 3-position 4-way solenoid directional control valve is respectively equipped with the spring that is used to control aperture.
What the utility model adopted is the structural shape that two balance cocks add bidirectional relief valve, and what balance cock overcame the negative moment use is the throttling of cylinder right angle, therefore can make spool gently move to equilibrium point in overcoming the process of negative moment soon; In order to reduce the spillage of cylinder right angle throttling, the utility model has increased J type 3-position 4-way solenoid directional control valve, makes system's control mouth of balance cock when not steering directly connect fuel tank, has reached the effect of steady rudder; In addition, when if the control pattern of pump group is pump control type closed system, for system better being dispelled the heat and cleaning, also increased the heat radiation flush valve, what the utility model adopted in the heat radiation flush valve is not the pattern that current in the world hydraulic operated valve adds by pass valve, but adopt hydraulic operated valve to add the pattern of flow regulating valve, and employing flow regulating valve replacement by pass valve can improve the contamination resistance of valve member, thus the control of the system of assurance is more reliable.
Description of drawings
Describe the utility model in detail below in conjunction with the drawings and specific embodiments;
Fig. 1 is a structural representation of the present utility model.
The specific embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with the specific embodiment, further set forth the utility model.
Referring to Fig. 1, present embodiment hydraulic pressure steering mechanism adopts and pushes away the rudder oil cylinder, and A1, B1 are respectively left rudder or right standard rudder first oil inlet and second oil inlet that pushes away the rudder oil cylinder.A ', B ' are respectively the left rudder of oil pump or right standard rudder into and out of hydraulic fluid port.When A ' was the left rudder oil outlet, then B ' was the left rudder return opening; Otherwise when B ' was the right standard rudder oil outlet, then A ' was the right standard rudder return opening.
The utility model is made up of three parts:
First is bidirectional balanced valve group: promptly two series connected the 3rd check valve 1c and the 4th check valve 1d are connected in parallel on and push away rudder oil cylinder inlet side and form shuttle valve, the left balance cock 7a and the right balance cock 7b of J type 3-position 4-way solenoid directional control valve 4 controls of modulated pressure oil are provided, wherein, the first check valve 1a and the first sequence valve 2a compose in parallel left balance cock 7a, and the second check valve 1h and the second sequence valve 2b compose in parallel right balance cock 7b.And the first check valve 1a and the second check valve 1h are connected on respectively on the first oil inlet A1 and the second oil inlet B1, and the first sequence valve 2a is connected with the second sequence valve 2b by J type 3-position 4-way solenoid directional control valve 4.
Its principle of work is: (one) is when not steering, J type 3-position 4-way solenoid directional control valve 4 is in meta, the A mouth and the B mouth of J type 3-position 4-way solenoid directional control valve 4 all take back oil cylinder, this moment, the first sequence valve 2a and the second sequence valve 2b were in approximate buttoned-up status, therefore no matter rudder blade is in any position at present, whether because the effect of current has produced pressure to the first oil inlet A1 and the second oil inlet B1, all can't open the first check valve 1a, the first sequence valve 2a, the second check valve 1h and the second sequence valve 2b, rudder blade is stabilized on original position, has therefore brought into play well steady steerage fruit; Simultaneously current are made to push away the pressure isolation that produces on the rudder oil cylinder, can't be delivered to the left rudder of oil pump or right standard rudder, reached the purpose of isolating into and out of hydraulic fluid port A ', B ' at the first oil inlet A1 and the second oil inlet B1.
(2) when behaviour left rudder or right standard rudder, be example with behaviour's left rudder below, otherwise the right side then, no longer superfluous herein by.Although might produce very big negative moment because of flow action, promptly there is very high pressure in the second oil inlet B1 bonded assembly oil cylinder chamber, but the pressure oil of the second oil inlet B1 can't not arrive the B mouth before the A mouth pressure is set up, must be that hydraulic oil passes through the 3rd check valve 1c when entering the first oil inlet A1 by the first check valve 1a, the B mouth of J type 3-position 4-way solenoid directional control valve 4 arrives the control mouth of the second sequence valve 2b, promote the spool of the second sequence valve 2b among the right balance cock 7b, make the second sequence valve 2b open a suitable aperture, promptly allow hydraulic oil to get back to B ' by the second sequence valve 2b and carry out oil return, and this aperture just is the flow aperture of hydraulic oil from A ' to the first oil inlet A1 by the second oil inlet B1; If the second oil inlet B1 has surpassed the flow of A ' to the first oil inlet A1 to the flow of B ', then A ' oil pressure descends immediately, then the second sequence valve 2b can progressively close because of control mouthful decompression, because what the spool of the second sequence valve 2b adopted is the approximate right angle throttle structure, therefore the mobile of the second sequence valve 2b spool is slow pulsation-free, can not produce the hydraulic pressure vibrations, reach the purpose that overcomes negative moment steadily.
Second portion is the bidirectional relief valve group: be made up of two the straight ejector half first by pass valve 3a and the second by pass valve 3b; wherein the first by pass valve 3a and the second by pass valve 3b are connected in parallel on respectively and push away rudder oil cylinder inlet side; its main purpose is protection rudder system and steering mechanism; when rudder system runs into the foreign matter bump and can carry out off-load by the first by pass valve 3a and the second by pass valve 3b when producing especially big pressure; allow a segment distance and hold-off pressure, avoided the damage of rudder system and steering mechanism.
Third part for the heat radiation flush valve: the heat radiation flush valve comprise 3-position 4-way hydraulic operated valve 5 and with the series connected flow regulating valve 6 of 3-position 4-way hydraulic operated valve 5 one ends, the other end of flow regulating valve 6 is connected with the other end of J type 3-position 4-way solenoid directional control valve 4 and takes back fuel tank 8, wherein, the other two ends of 3-position 4-way hydraulic operated valve 5 are connected in parallel on and push away rudder oil cylinder inlet side.
What adopt in the heat radiation flush valve is not the pattern that current in the world 3-position 4-way hydraulic operated valve adds by pass valve, but adopt 3-position 4-way hydraulic operated valve 5 to add the pattern of flow regulating valve 6, employing flow regulating valve 6 replacement by pass valves can improve the contamination resistance of valve member, thereby the control of the system of assurance is more reliable.This heat radiation flush valve makes when the control pattern of pump group is pump control type closed system, better system dispelled the heat and cleans.Thereby the control of the system of assurance is more reliable.
The spool of the first sequence valve 2a of the present utility model and the second sequence valve 2b and J type 3-position 4-way solenoid directional control valve 4 is respectively equipped with the spring that is used to control aperture.
More than show and described groundwork of the present utility model and principal character and advantage of the present utility model.The technical personnel of the industry should be understood; the utility model is not restricted to the described embodiments; that describes in the foregoing description and the specification sheets just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (3)
1. hydraulic sterring engine special service valve group, comprise and hydraulic pressure steering mechanism inlet side bonded assembly first oil inlet (A1) and second oil inlet (B1), with described first oil inlet (A1) and second oil inlet (B1) difference series connected first check valve (1a) and second check valve (1h) and first by pass valve (3a) and second by pass valve (3b) in parallel respectively with described hydraulic pressure steering mechanism inlet side, on described first check valve (1a) and second check valve (1h), be parallel with first sequence valve (2a) and second sequence valve (2b) respectively and constitute left balance cock (7a) and right balance cock (7b), it is characterized in that, also comprise the J type 3-position 4-way solenoid directional control valve (4) that can reduce the leakage of oil amount, described first sequence valve (2a) is connected with described second sequence valve (2b) by J type 3-position 4-way solenoid directional control valve (4), is parallel with two series connected the 3rd check valves (1c) and the 4th check valve (1d) in described hydraulic pressure steering mechanism inlet side and forms shuttle valve.
2. hydraulic sterring engine special service valve group according to claim 1, it is characterized in that, described hydraulic sterring engine special service valve group also comprises the heat radiation flush valve, described heat radiation flush valve comprise 3-position 4-way hydraulic operated valve (5) and with the 3-position 4-way hydraulic operated valve series connected flow regulating valve of (5) one ends (6), the other end of described flow regulating valve (6) is connected with the other end of described J type 3-position 4-way solenoid directional control valve (4) and takes back fuel tank (8), and the other two ends of described 3-position 4-way hydraulic operated valve (5) are connected in parallel on hydraulic pressure steering mechanism inlet side.
3. hydraulic sterring engine special service valve group according to claim 1 and 2 is characterized in that, the spool of described first sequence valve (2a) and second sequence valve (2b) and J type 3-position 4-way solenoid directional control valve (4) is respectively equipped with the spring that is used to control aperture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205397700U CN201808667U (en) | 2010-09-25 | 2010-09-25 | Special valve group for hydraulic steering engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205397700U CN201808667U (en) | 2010-09-25 | 2010-09-25 | Special valve group for hydraulic steering engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201808667U true CN201808667U (en) | 2011-04-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205397700U Expired - Lifetime CN201808667U (en) | 2010-09-25 | 2010-09-25 | Special valve group for hydraulic steering engine |
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| CN (1) | CN201808667U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101954968A (en) * | 2010-09-25 | 2011-01-26 | 南京航海仪器二厂有限公司 | Valve block special for hydraulic steering engine |
| CN103010443A (en) * | 2012-11-27 | 2013-04-03 | 张家港市飞驰机械制造有限公司 | Hydraulic pressure system used for controlling traveling of float clearing boat |
| CN109677842A (en) * | 2019-01-12 | 2019-04-26 | 上海波赫驱动系统有限公司 | A kind of drag conveyor double handle control valve |
| CN109809311A (en) * | 2019-01-31 | 2019-05-28 | 武汉船用机械有限责任公司 | The Hydraulic slewing system and crane of crane |
| CN111878470A (en) * | 2020-07-30 | 2020-11-03 | 三一重工股份有限公司 | Boom hydraulic system and operation equipment |
| WO2023082233A1 (en) * | 2021-11-15 | 2023-05-19 | 无锡市东舟船舶设备股份有限公司 | Valve group |
-
2010
- 2010-09-25 CN CN2010205397700U patent/CN201808667U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101954968A (en) * | 2010-09-25 | 2011-01-26 | 南京航海仪器二厂有限公司 | Valve block special for hydraulic steering engine |
| CN103010443A (en) * | 2012-11-27 | 2013-04-03 | 张家港市飞驰机械制造有限公司 | Hydraulic pressure system used for controlling traveling of float clearing boat |
| CN103010443B (en) * | 2012-11-27 | 2016-02-24 | 苏州飞驰环保科技股份有限公司 | For controlling to float clearly the hydraulic system that shipping agency enters |
| CN109677842A (en) * | 2019-01-12 | 2019-04-26 | 上海波赫驱动系统有限公司 | A kind of drag conveyor double handle control valve |
| CN109809311A (en) * | 2019-01-31 | 2019-05-28 | 武汉船用机械有限责任公司 | The Hydraulic slewing system and crane of crane |
| CN111878470A (en) * | 2020-07-30 | 2020-11-03 | 三一重工股份有限公司 | Boom hydraulic system and operation equipment |
| CN111878470B (en) * | 2020-07-30 | 2022-02-18 | 三一重工股份有限公司 | Boom hydraulic system and operation equipment |
| WO2023082233A1 (en) * | 2021-11-15 | 2023-05-19 | 无锡市东舟船舶设备股份有限公司 | Valve group |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110427 Effective date of abandoning: 20120502 |