CN2600634Y - Hydraulic loop cross valve of crawler crane - Google Patents
Hydraulic loop cross valve of crawler crane Download PDFInfo
- Publication number
- CN2600634Y CN2600634Y CN 03219266 CN03219266U CN2600634Y CN 2600634 Y CN2600634 Y CN 2600634Y CN 03219266 CN03219266 CN 03219266 CN 03219266 U CN03219266 U CN 03219266U CN 2600634 Y CN2600634 Y CN 2600634Y
- Authority
- CN
- China
- Prior art keywords
- oil
- valve
- valve body
- valve rod
- mouth
- 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 - Lifetime
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- Mechanically-Actuated Valves (AREA)
- Details Of Valves (AREA)
Abstract
The utility model discloses a crawler crane hydraulic circuit conversion valve, which includes a valve body of the built-in valve stem, an oil-in mouth and an oil-out mouth. The valve body provides a master oil-in mouth used for the working connection and two oil-out mouths that channel them. In addition, the valve body provides an oil return mouth used for the oil gallery and two oil-in mouths that channel them. Two necked-in paths are arranged in the middle of the valve stem, of which, one end is yoked to a locating sleeve with two notched gutters. The outside of the locating sleeve is pinned to the sheath in the end of the valve stem. A back cap with holes is positioned outside the locating sleeve. Some locking balls are pressed into the flute of the bore by the springs. These arrangements secure the conversion between the dedusing hydraulic running circuit and the track beam hydraulic circuit requiring expansion and contraction and safely lock it, which accordingly accomplishes the expansion and contraction of the trunk beam. The utility model makes sure that the crane has a larger grounding area and safe and stabile movement, which helps drag, transfer and dismantle the crane.
Description
The utility model relates to the valve in a kind of crawler crane hydraulic system.
Background technique
At present, do not have changing valve in the hydraulic system of crawler crane, oil hydraulic circuit can not be realized conversion, and the crawler belt beam can not be expanded and shrink.Because the crawler belt beam can not expand and shrink, steady inadequately when mobile so the hoist contact area is less, safety inadequately, what be unfavorable for hoist drags, changes factory and dismounting.
Summary of the invention
The purpose of this utility model is that a kind of crawler crane oil hydraulic circuit changing valve will be provided, and this changing valve can make the oil hydraulic circuit in the hydraulic system realize conversion, thereby finishes the expansion and the contraction of crawler belt beam.
The purpose of this utility model is achieved in that this changing valve comprises valve body, filler opening and the oil outlet that is built-in with valve rod, valve body has a main filler opening that is used for working connection and two oil outlets that communicate with it, valve body also has a return opening and two filler openings that communicate with it that are used for oil circuit, the valve rod middle part is provided with the twice undergauge, one end of valve rod is with the setting sleeve of band twice groove, the useful pin in the outside of setting sleeve is connected in the cover of valve rod end, the setting sleeve outside is with bonnet with holes, and the hole is built-in with the locking ball of being compressed into groove by spring.
Seal ring and dust ring are housed between described valve body and the valve rod.
The oil hydraulic circuit that the utility model can make down vehicle hydraulic system walking loop and crawler belt beam expand and to shrink is changed, and safe locking, thereby finishes the expansion and the contraction of crawler belt beam.Guarantee that the hoist contact area is bigger, steady safety when mobile, what help hoist drags, changes factory and dismounting.
Below in conjunction with drawings and Examples the utility model is elaborated.
Description of drawings
Fig. 1 is function figure of the present utility model.
Fig. 2 is an embodiment's of the utility model a structural drawing.
Fig. 3 is the worm's eye view of Fig. 2.
1. valve rods among the figure, 2. valve body, 3. setting sleeve, 4. bonnet, 5. spring, 6. screw, 7. cover, 8. pin, 9. rear groove, 10. seal rings, 17. dust rings before the undergauges, 16. before locking ball, 11. forward recess, 12. fastening screw trip bolts, 13. back seal rings, the 14. back undergauges, 15..
Embodiment
In Fig. 2 and Fig. 3, valve body 2 is built-in with valve rod 1.Valve body 2 has a main oil inlet P that is used for working connection and the first oil outlet A1 that communicates with it and the second oil outlet A2.Valve body 2 also has an oil return inlet T that is used for oil circuit and the first filler opening B1 that communicates with it and the second filler opening B2.Valve rod 1 middle part is provided with back undergauge 14 and preceding undergauge 15.The right-hand member of valve rod 1 is with setting sleeve 3, and setting sleeve 3 is provided with forward recess 11 and rear groove 9, and the useful pin 8 in the outside of setting sleeve 3 right-hand members is connected in the cover 7 of valve rod 1 right part.Setting sleeve 3 outsides are with bonnet with holes 4, and the hole is built-in with the locking ball 10 of being compressed into forward recess 11 by spring 5.Seal ring 16, back seal ring 13 and dust ring 17 before being equipped with between valve body 2 and the valve rod 1.
In Fig. 1, Fig. 2 and Fig. 3, before valve rod 1 is pulled, locking ball 10 is pressed in the forward recess 11, valve rod 1 is positioned at the left side working position, main oil inlet P communicates with the first oil outlet A1, and hydraulic oil flow is to running motor, and the first filler opening B1 communicates with oil return inlet T, hydraulic oil returns fuel tank, finishes drive motor walking operating mode.
After valve rod 1 is pulled, locking ball 10 is pressed in the rear groove 9, valve rod 1 is just changed to the right side working position, main oil inlet P communicates with the second oil outlet A2, it is flexible that hydraulic oil promotes crawler belt beam oil cylinder, the second filler opening B2 communicates with oil return inlet T, and hydraulic oil returns fuel tank, finishes the expansion of crawler belt beam or shrinks operating mode.
Two kinds of operating modes are finished by this changing valve in two loops, have made full use of the transmission of hydraulic system, greatly reduce cost, and hydraulic system is simplified, and are simple to operation.
Claims (2)
1. crawler crane oil hydraulic circuit changing valve, this changing valve comprises the valve body that is built-in with valve rod, filler opening and oil outlet, it is characterized in that valve body has a main filler opening that is used for working connection and two oil outlets that communicate with it, valve body also has a return opening and two filler openings that communicate with it that are used for oil circuit, the valve rod middle part is provided with the twice undergauge, one end of valve rod is with the setting sleeve of band twice groove, the useful pin in the outside of setting sleeve is connected in the cover of valve rod end, the setting sleeve outside is with bonnet with holes, and the hole is built-in with the locking ball of being compressed into groove by spring.
2. crawler crane oil hydraulic circuit changing valve according to claim 1 is characterized in that being equipped with between valve body and the valve rod seal ring and dust ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03219266 CN2600634Y (en) | 2003-01-08 | 2003-01-08 | Hydraulic loop cross valve of crawler crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03219266 CN2600634Y (en) | 2003-01-08 | 2003-01-08 | Hydraulic loop cross valve of crawler crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2600634Y true CN2600634Y (en) | 2004-01-21 |
Family
ID=34161158
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03219266 Expired - Lifetime CN2600634Y (en) | 2003-01-08 | 2003-01-08 | Hydraulic loop cross valve of crawler crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2600634Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102434514A (en) * | 2011-11-17 | 2012-05-02 | 常德中联重科液压有限公司 | Hydraulic valve and valve rod positioning device thereof |
| CN102661298A (en) * | 2012-05-04 | 2012-09-12 | 徐州重型机械有限公司 | Hydraulic valve and crane provided with same |
-
2003
- 2003-01-08 CN CN 03219266 patent/CN2600634Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102434514A (en) * | 2011-11-17 | 2012-05-02 | 常德中联重科液压有限公司 | Hydraulic valve and valve rod positioning device thereof |
| CN102434514B (en) * | 2011-11-17 | 2016-02-10 | 常德中联重科液压有限公司 | The rod positioning device of hydrovalve and hydrovalve |
| CN102661298A (en) * | 2012-05-04 | 2012-09-12 | 徐州重型机械有限公司 | Hydraulic valve and crane provided with same |
| CN102661298B (en) * | 2012-05-04 | 2016-02-24 | 徐州重型机械有限公司 | A kind of hydrovalve and there is this hydrovalve hoist |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20090220 Address after: No. 165 Copper Road, Jiangsu, Xuzhou Province, China: 221004 Patentee after: Xuzhou Heavy Machinery Co., Ltd. Address before: No. 165 Copper Road, Jiangsu, Xuzhou Province, China: 221004 Patentee before: Xuzhou Heavy Machinery Plant |
|
| ASS | Succession or assignment of patent right |
Owner name: XUZHOU HEACY MACHINE CO., LTD. Free format text: FORMER OWNER: XUZHOU HEACY MACHINERY PLANT Effective date: 20090220 |
|
| ASS | Succession or assignment of patent right |
Owner name: CONSTRUCTION EQUIPMENT BRANCH, XUGONG GROUP ENGINE Free format text: FORMER OWNER: XUZHOU HEAVY MACHINERY CO., LTD. Effective date: 20100810 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 221004 NO.165, TONGSHAN ROAD, XUZHOU CITY, JIANGSU PROVINCE TO: 221004 NO.19, TAOSHAN ROAD, ECONOMIC DEVELOPMENT ZONE, XUZHOU CITY, JIANGSU PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20100810 Address after: 221004 No. 19 Peach Road, Xuzhou Economic Development Zone, Jiangsu, China Patentee after: Building Machinery Co., Ltd., XCMG Construction Machinery Co., Ltd. Address before: 221004 Xuzhou, Zhejiang Province, Jiangsu Road No. 165 Patentee before: Xuzhou Heavy Machinery Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20130108 Granted publication date: 20040121 |