CN201255147Y - Multifunction driving liquid controlled valve - Google Patents
Multifunction driving liquid controlled valve Download PDFInfo
- Publication number
- CN201255147Y CN201255147Y CNU2008201490262U CN200820149026U CN201255147Y CN 201255147 Y CN201255147 Y CN 201255147Y CN U2008201490262 U CNU2008201490262 U CN U2008201490262U CN 200820149026 U CN200820149026 U CN 200820149026U CN 201255147 Y CN201255147 Y CN 201255147Y
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- Prior art keywords
- valve
- hydraulic fluid
- fluid port
- plug
- valve body
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- Expired - Lifetime
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Abstract
The utility model provides a multifunction driving hydraulic control valve. The utility model is characterized in that the multifunction driving hydraulic control valve comprises two leading solenoid valves (2), five plug-in logical valves (3), a shuttle valve (4) and a choke plug (5) arranged at the relevant positions of a valve body (1) by means of combination and assembly. The multifunction driving hydraulic control valve can complete various functions of a flatcar, such as normal running, center gyration and the functions of freewheel. The performance of the multifunction driving hydraulic control valve provided by the utility model is better than the performance of the combination of a hydraulic control change valve (central rotary valve) and a freewheel valve that is generally used currently. In this way, not only the number of pipes laid out in the system and the leakage points are reduced; but also the oil blockage of pipelines is reduced, and the fault points are reduced so that the pipelines laid out in the system are more concise, thus improving the security and the reliability of the drive system of the flatcar.
Description
Technical field
The utility model relates to a kind of hydraulic control valve, relates to a kind of multi-functional driving hydraulic control valve that is specially adapted to the extraordinary all-hydraulic power car hydraulic system of heavy duty specifically.This hydraulic control valve can also be applied to need in the engineering machinery to finish the occasion of similar function.
Background technique
In heavy flatcar design of Hydraulic System, usually need to satisfy multiple function, especially drive running gear, need finish forward and reversely travel, center steering, diagonal, rotation etc.; Switch fast again when vehicle slip, make the motor A that skids, B mouth UNICOM, cut-out system simultaneously comes oil, avoids vehicle to run out of steam and stops.And what generally adopt at present both at home and abroad is the combination of pilot operated directional control valve (center steering valve) and freewheel valve, adopts external control mostly, tube road connection between the two, make the stringing complexity of system, increased the liquid resistance of system, increased a large amount of leakage points, the low resource of wasting again of Security.
Summary of the invention
A kind of multi-functional driving hydraulic control valve that the purpose of this utility model provides at existing deficiency in the above-mentioned prior art just.
The purpose of this utility model can realize by following technique measures:
Multi-functional driving hydraulic control valve of the present utility model comprises that the mode with combine and assemble is installed in two pilot solenoid valves of valve body corresponding position, five plug-in mounting logical valves, shuttle valve and plug; Wherein the pilot pressure hydraulic fluid port of the 3rd, the 4th plug-in mounting logical valve inserts second hydraulic fluid port of second pilot solenoid valve; The pilot pressure hydraulic fluid port of first, second plug-in mounting logical valve inserts shuttle valve, and inserts first hydraulic fluid port of second pilot solenoid valve and second hydraulic fluid port of first pilot solenoid valve respectively by shuttle valve; The pilot pressure hydraulic fluid port of the 5th plug-in mounting logical valve inserts first hydraulic fluid port of first pilot solenoid valve; The 3rd hydraulic fluid port of the 4th hydraulic fluid port of second pilot solenoid valve and first pilot solenoid valve pilot pressure mouth that inserts on the valve body in parallel; The 4th hydraulic fluid port of the 3rd hydraulic fluid port of second pilot solenoid valve and first pilot solenoid valve be in parallel insert with valve body that oil sump tank is connected on mouthful; The first, first hydraulic fluid port of the 3rd plug-in mounting logical valve is connected with the oily entry port of the principal pressure on the valve body; First hydraulic fluid port of second hydraulic fluid port of the first plug-in mounting logical valve, first hydraulic fluid port of the 4th plug-in mounting logical valve, the 5th plug-in mounting logical valve is connected with the motor filler opening on the valve body; Second hydraulic fluid port of second hydraulic fluid port of the 3rd plug-in mounting logical valve, first hydraulic fluid port of the second plug-in mounting logical valve, the 5th plug-in mounting logical valve is connected with the motor return opening on the valve body; Second hydraulic fluid port of second hydraulic fluid port of the second plug-in mounting logical valve, the 4th plug-in mounting logical valve is connected with the hydraulic fluid port on the valve body.
The utility model is provided with two spiro pluging holes that plug screw is installed in the corresponding position of valve body, wherein first spiro pluging hole is used for internal control pressure oil and external control pressure oil are separated, and this spiro pluging hole is connected with pilot pressure mouth on the valve body by passage; Second spiro pluging hole is used for oil return of internal control pressure oil and the oil return of external pressure oil are separated, this spiro pluging hole by being connected on passage and the valve body with oil sump tank mouthful, hydraulic fluid port on the valve body is connected.When needs externally to pressure oil, when the pressure oil oil return is controlled, dismountable above-mentioned two plug screws, and corresponding external control pipeline linked to each other with two spiro pluging holes respectively can be realized the external control to multi-functional driving hydraulic control valve.
Under the normal condition, system to the drive motor fuel feeding, makes normal vehicle operation by multi-functional hydraulic control valve group of the present utility model; When vehicle slip, corresponding plug-in mounting logical valve spool moves commutation immediately by the guide of system hydraulic fluid pressure, and the oil inlet and outlet of locking system simultaneously with A, the B hydraulic fluid port UNICOM of motor, avoids motor rotary speed too high and make car load lose driving force; When if vehicle need be done the center steering operating mode, corresponding plug-in mounting logical valve spool moves commutation, switching motor A, B hydraulic fluid port immediately by the guide of system hydraulic fluid pressure.
The utility model has following beneficial effect compared to existing technology:
(1) the multi-functional driving hydraulic control valve of the utility model is utilized the combination of a plurality of logic cartridge valves, realizes multiple function, has simplified the complexity of existing systems greatly;
(2) the multi-functional hydraulic control valve of the utility model can be finished the multiple function of flatcar: cruising, center steering, freewheel.Its performance is better than at present the generally pilot operated directional control valve (center steering valve) of employing and the combination of freewheel valve, not only can reduce the stringing amount and the leakage point of system, and can reduce the resistance of pipeline oil, reduced the fault point, make the line arrangement of system more succinct, thereby improve the Security and the reliability of flatcar drive system.
(3) the multi-functional hydraulic control valve of the utility model can be realized external control and two kinds of control modes of internal control.
Description of drawings
Fig. 1 is an outline drawing structural front view of the present utility model.
Fig. 2 is the right elevation of Fig. 1.
Fig. 3 is the left view of Fig. 1.
Fig. 4 is a schematic diagram of the present utility model.
Embodiment
The utility model is further described below with reference to embodiment's (accompanying drawing):
As shown in Figure 1, 2, 3, multi-functional driving hydraulic control valve of the present utility model comprises that mode with combine and assemble is installed in two pilot solenoid valves 2 of valve body 1 corresponding position, five plug-in mounting logical valves 3, a shuttle valve 4 and a plug 5.As shown in Figure 4, wherein the pilot pressure hydraulic fluid port III of the 3rd, the 4th plug-in mounting logical valve c, d inserts second hydraulic fluid port II of the second pilot solenoid valve YV2; The pilot pressure hydraulic fluid port III of first, second plug-in mounting logical valve a, b inserts shuttle valve 4, and inserts first hydraulic fluid port I of the second pilot solenoid valve YV2 and second hydraulic fluid port II of the first pilot solenoid valve YV1 respectively by shuttle valve 4; The pilot pressure hydraulic fluid port III of the 5th plug-in mounting logical valve e inserts first hydraulic fluid port I of the first pilot solenoid valve YV1; The 3rd the hydraulic fluid port III of the 4th the hydraulic fluid port IV of the second pilot solenoid valve YV2 and the first pilot solenoid valve YV1 pilot pressure mouth P1 that inserts on the valve body in parallel; The 4th the hydraulic fluid port IV of the 3rd the hydraulic fluid port III of the second pilot solenoid valve YV2 and the first pilot solenoid valve YV1 be in parallel insert with valve body that oil sump tank is connected on the T1 mouth; The first, first hydraulic fluid port I of the 3rd plug-in mounting logical valve a, c is connected with the oily entry port P of the principal pressure on the valve body; First hydraulic fluid port I of second hydraulic fluid port II of the first plug-in mounting logical valve a, the 4th plug-in mounting logical valve d, first hydraulic fluid port I of the 5th plug-in mounting logical valve e are connected with motor filler opening A on the valve body; Second hydraulic fluid port II of first hydraulic fluid port I of second hydraulic fluid port II of the 3rd plug-in mounting logical valve c, the second plug-in mounting logical valve b, the 5th plug-in mounting logical valve e is connected with the motor return opening B on the valve body; Second hydraulic fluid port II of second hydraulic fluid port II of the second plug-in mounting logical valve b, the 4th plug-in mounting logical valve d is connected with the hydraulic fluid port T on the valve body.
Be provided with two spiro pluging hole 6,6-1 that plug screw is installed in the corresponding position of valve body 1, wherein first spiro pluging hole 6 is used for internal control pressure oil and external control pressure oil are separated, and this spiro pluging hole 6 is connected with pilot pressure mouth P1 on the valve body by passage; Second spiro pluging hole 6-1 is used for oil return of internal control pressure oil and the oil return of external pressure oil are separated, and this spiro pluging hole 6-1 is connected by the T1 mouth that is connected with oil sump tank on passage and the valve body, the hydraulic fluid port T on the valve body.When needs externally to pressure oil, when the pressure oil oil return is controlled, dismountable above-mentioned two plug screws, and corresponding external control pipeline linked to each other with two spiro pluging holes respectively can be realized the external control to multi-functional driving hydraulic control valve.
Working principle of the present utility model is as follows:
Under the nominal situation, two pilot solenoid valve YV1, YV2 all are in the outage operating mode, plug-in mounting logical valve c, d, e are because its pilot pressure hydraulic fluid port III meets pilot pressure mouth P1, therefore under the effect of pilot pressure, plug-in mounting logical valve c, d, e hydraulic fluid port I, II are in the sealing position, and the pilot pressure hydraulic fluid port III of plug-in mounting logical valve a, b is by hydraulic fluid port I, III or the YV of shuttle valve and pilot solenoid valve YV2
1Hydraulic fluid port II, IV connect T1 mouth oil sump tank, principal pressure oil is entered by the P mouth, arrives motor A mouth (P → a → A communicates) through hydraulic fluid port I, the II of plug-in mounting logical valve a; The motor oil return arrives T mouth (B → b → T communicates) by the B mouth through hydraulic fluid port I, the II of plug-in mounting logical valve b, and system runs well; If pilot solenoid valve YV
1Energising, the spool commutation, guide's control port III of plug-in mounting logical valve e takes back fuel tank by hydraulic fluid port I, the IV of pilot solenoid valve YV1, hydraulic fluid port I, the II of plug-in mounting logical valve e are in the UNICOM position, make motor filler opening A, return opening B on the valve body by hydraulic fluid port I, the II of plug-in mounting logical valve e UNICOM's (being that A → B communicates), equal and the oily P1 of pilot pressure links and is in closing position and logic cartridge valve a, b, c, d are owing to its control port III, thereby make P, T and A, B on the valve body obstructed, cut off oil, realize the freewheel operating mode of motor; The magnet valve YV2 that conducts electricity in the ban energising, the spool commutation, plug-in mounting logical valve c, d guide's control port III is by the II of pilot solenoid valve YV2, the III hydraulic fluid port connects the T1 mouth, oil sump tank, make plug-in mounting logical valve c, the hydraulic fluid port I of d, II is in the UNICOM position, and plug-in mounting logical valve a, e, b is in closing position owing to its guide's control port III and pilot pressure oil P1 links, thereby principal pressure oil is entered by the P mouth, hydraulic fluid port I through plug-in mounting logical valve c, II arrives B mouth (P → c → B communicates), oil return is by the hydraulic fluid port I of A mouth through plug-in mounting logical valve d, II arrives T mouth (A → d → T communicates), realizes the commutation running of motor.
Claims (2)
1, a kind of multi-functional driving hydraulic control valve is characterized in that: it comprises two pilot solenoid valves (2), five plug-in mounting logical valves (3), a shuttle valve (4) and the plug (5) that is installed in valve body (1) corresponding position in the mode of combine and assemble; Wherein the pilot pressure hydraulic fluid port (III) of the 3rd, the 4th plug-in mounting logical valve (c), (d) inserts second hydraulic fluid port (II) of second pilot solenoid valve (YV2); The pilot pressure hydraulic fluid port (III) of first, second plug-in mounting logical valve (a) and (b) inserts shuttle valve (4), and inserts first hydraulic fluid port (I) of second pilot solenoid valve (YV2) and second hydraulic fluid port (II) of first pilot solenoid valve (YV1) respectively by shuttle valve (4); The pilot pressure hydraulic fluid port (III) of the 5th plug-in mounting logical valve (e) inserts first hydraulic fluid port (I) of first pilot solenoid valve (YV1); The 4th hydraulic fluid port (IV) of second pilot solenoid valve (YV2) and the 3rd hydraulic fluid port (III) of first pilot solenoid valve (YV1) the pilot pressure mouth (P1) that inserts on the valve body in parallel; The 3rd hydraulic fluid port (III) of second pilot solenoid valve (YV2) and the 4th hydraulic fluid port (IV) of first pilot solenoid valve (YV1) be in parallel insert with valve body that oil sump tank is connected on mouthful (T1); The first, the oil entry port of the principal pressure on first hydraulic fluid port (I) of the 3rd plug-in mounting logical valve (a), (c) and the valve body (P) is connected; First hydraulic fluid port (I) of second hydraulic fluid port (II) of the first plug-in mounting logical valve (a), the 4th plug-in mounting logical valve (d), first hydraulic fluid port (I) of the 5th plug-in mounting logical valve (e) are connected with motor filler opening (A) on the valve body; Second hydraulic fluid port (II) of first hydraulic fluid port (I) of second hydraulic fluid port (II) of the 3rd plug-in mounting logical valve (c), the second plug-in mounting logical valve (b), the 5th plug-in mounting logical valve (e) is connected with motor return opening (B) on the valve body; Second hydraulic fluid port (II) of second hydraulic fluid port (II) of the second plug-in mounting logical valve (b), the 4th plug-in mounting logical valve (d) is connected with hydraulic fluid port (T) on the valve body.
2, multi-functional driving hydraulic control valve according to claim 1, it is characterized in that: be provided with two spiro pluging hole (6), (6-1) that plug screw is installed in the corresponding position of valve body (1), wherein first spiro pluging hole (6) is used for internal control pressure oil and external control pressure oil are separated, and this spiro pluging hole (6) is connected with pilot pressure mouth (P1) on the valve body by passage; Second spiro pluging hole (6-1) is used for the oil return of the oil return of internal control pressure oil and external pressure oil is separated, and this spiro pluging hole (6-1) is connected by mouthful (T1) that be connected with oil sump tank on passage and the valve body, the hydraulic fluid port (T) on the valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201490262U CN201255147Y (en) | 2008-09-05 | 2008-09-05 | Multifunction driving liquid controlled valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201490262U CN201255147Y (en) | 2008-09-05 | 2008-09-05 | Multifunction driving liquid controlled valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201255147Y true CN201255147Y (en) | 2009-06-10 |
Family
ID=40738463
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201490262U Expired - Lifetime CN201255147Y (en) | 2008-09-05 | 2008-09-05 | Multifunction driving liquid controlled valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201255147Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102345749A (en) * | 2011-08-29 | 2012-02-08 | 徐州重型机械有限公司 | Flow collecting valve and crane hydraulic control system with the same |
| CN102478031A (en) * | 2010-11-22 | 2012-05-30 | 北汽福田汽车股份有限公司 | Switching valve and pumping system |
| CN103953614A (en) * | 2014-04-21 | 2014-07-30 | 天津航天瑞莱科技有限公司 | Protection module device for hydraulic servo system |
| CN104828702A (en) * | 2014-11-26 | 2015-08-12 | 北汽福田汽车股份有限公司 | Crane, reversing control system, and oil supply apparatus thereof |
-
2008
- 2008-09-05 CN CNU2008201490262U patent/CN201255147Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102478031A (en) * | 2010-11-22 | 2012-05-30 | 北汽福田汽车股份有限公司 | Switching valve and pumping system |
| CN102478031B (en) * | 2010-11-22 | 2015-09-09 | 北汽福田汽车股份有限公司 | Switching valve and pumping system |
| CN102345749A (en) * | 2011-08-29 | 2012-02-08 | 徐州重型机械有限公司 | Flow collecting valve and crane hydraulic control system with the same |
| CN102345749B (en) * | 2011-08-29 | 2013-06-19 | 徐州重型机械有限公司 | Flow collecting valve and crane hydraulic control system with the same |
| CN103953614A (en) * | 2014-04-21 | 2014-07-30 | 天津航天瑞莱科技有限公司 | Protection module device for hydraulic servo system |
| CN103953614B (en) * | 2014-04-21 | 2016-08-17 | 天津航天瑞莱科技有限公司 | A kind of Hydrauservo System protection modular device |
| CN104828702A (en) * | 2014-11-26 | 2015-08-12 | 北汽福田汽车股份有限公司 | Crane, reversing control system, and oil supply apparatus thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: ZHENGZHOU DAFANG BRIDGE-MACHINE CO., LTD. Free format text: FORMER NAME: ZHENGZHOU DAFANG BRIDGE MACHINERY CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 450064 No. 1 Minghui Road, Ma Zhuang Town, Henan, Zhengzhou Patentee after: Zhengzhou New Dafang Heavy Industries & Technology Co., Ltd. Address before: 10201 box 450005, Zheng Mi Road, Henan, Zhengzhou Patentee before: Zhengzhou Dafang Bridge Machinery Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090610 |