CN2474763Y - Crane hydraulic device - Google Patents
Crane hydraulic device Download PDFInfo
- Publication number
- CN2474763Y CN2474763Y CN 01237657 CN01237657U CN2474763Y CN 2474763 Y CN2474763 Y CN 2474763Y CN 01237657 CN01237657 CN 01237657 CN 01237657 U CN01237657 U CN 01237657U CN 2474763 Y CN2474763 Y CN 2474763Y
- Authority
- CN
- China
- Prior art keywords
- valve
- frame part
- hoisting mechanism
- pipeline connection
- control valve
- 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
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- Fluid-Pressure Circuits (AREA)
- Jib Cranes (AREA)
Abstract
The utility model discloses a crane hydraulic device. A quadruple gear pump of the device and a debarkation portion form a pipeline connection, the quadruple gear pump and an upper vehicle portion form the pipeline connection, a control valve assembly and a main raising mechanism, an auxiliary raising mechanism, a rotary motor, and a rotary cushion valve form the pipeline connection. The control valve assembly and two pilot valves form the pipeline connection, the two pilot valves and the auxiliary raising mechanism form the pipeline connection, and the internal portion of a debarkation multi-port valve is connected with a limit valve. The utility model is provided with good micro-motion, stable movement, and laborsaving operation. A supporting leg table control valve adopts the limit valve with effectively preventing the bending damage of a horizontal supporting leg hydro-cylinder piston rod. The utility model is used as a hydraulic device of an automobile crane.
Description
The utility model relates to a kind of hydraulic control device of truck crane.
The jack machinism of known truck crane generally adopts the triple gear pump to drive and the hydraulic control device of manual control, as the truck crane of Xuzhou, Jiangsu Province factory of heavy mechanism production, employing be exactly this control gear.Adopt the truck crane of manual control hydraulic control device, fine motion is poor, the operation effort, and valve and manual joystick are equipped with very big spatial constraints, and the supporting leg control valve is owing to no pressure limiting device, the flexible damage of horizontal support legs oil cylinder piston bar.
The purpose of this utility model is that a kind of hoist hydraulic pressure installation will be provided, and this hydraulic pressure installation fine motion is good, rapid operation, and horizontal support legs oil cylinder piston bar is not fragile.
The purpose of this utility model is achieved in that this hoist hydraulic pressure installation comprises upper frame part and lower frame part, the four-gear block pump forms pipeline with lower frame part and is connected, the four-gear block pump also forms pipeline with upper frame part and is connected, and upper frame part comprises main hoisting mechanism, auxiliary hoisting mechanism, the multi-way valve of getting on the bus, amplitude oil cylinder, telescopic oil cylinder, rotary motor and rotary buffering valve.Upper frame part also comprises control valve assembly and two pilot valves, the control valve assembly forms pipeline with two pilot valves and is connected, the control valve assembly forms pipeline with main hoisting mechanism, auxiliary hoisting mechanism, rotary motor, rotary buffering valve and is connected, and two pilot valves form pipeline with auxiliary hoisting mechanism and are connected.Lower frame part comprises the multi-way valve of getting off, and is connected with a pressure-limit valve in the multi-way valve of getting off.
The utility model adopts hydraulic control pilot control main hoisting mechanism, auxiliary hoisting mechanism, and fine motion is good, stable action, rapid operation.The supporting leg control valve adopts pressure-limit valve, has prevented that effectively the bending of horizontal support legs oil cylinder piston bar from damaging.Adopt the four-gear block pump as power source, both be convenient to produce and buying, reduced manufacture cost again, help producing in enormous quantities.The hydraulic control device that can be used as truck crane uses.
Below in conjunction with drawings and Examples the utility model is elaborated.
Accompanying drawing is an an embodiment's of the present utility model structural drawing.
1. four-gear block pumps among the figure, 2. get off multi-way valve, 2-1. pressure-limit valve, 3. horizontal support legs oil cylinder, 4. vertical oil cylinder, 5. oil purifier, 6. control valve assembly, 6-1 solenoid valve, 6-2 solenoid valve, 7. rotary buffering valve, 8. main hoisting mechanism, 9. auxiliary hoisting mechanism, 10. get on the bus multi-way valve, 11. amplitude oil cylinder, 12. telescopic oil cylinders, 13. rotary motors, 14. left pilot valves, 15. right pilot valves.
In the embodiment shown in the figures, four-gear block pump 1 forms pipeline with lower frame part and is connected, and four-gear block pump 1 also forms pipeline with upper frame part and is connected.Upper frame part comprises main hoisting mechanism 8, auxiliary hoisting mechanism 9, the multi-way valve 10 of getting on the bus, amplitude oil cylinder 11, telescopic oil cylinder 12, rotary motor 13 and rotary buffering valve 7.Upper frame part also comprises control valve assembly 6 and two pilot valves 14,15, control valve assembly 6 forms pipeline with two pilot valves 14,15 and is connected, control valve assembly 6 forms pipeline with main hoisting mechanism 8, auxiliary hoisting mechanism 9, rotary motor 13, rotary buffering valve 7 and is connected, and left pilot valve 14 forms pipeline with right pilot valve 15 with auxiliary hoisting mechanism 9 and is connected.
Four-gear block pump 1 is as power source, and the multi-way valve 2 built-in pressure-limit valve 2-1 that get off stretch out pressure with limit levels support oil cylinder 3, thereby avoid the piston rod bending; Control get on the bus multi-way valve 10 and rotary buffering valve 7 with two guide proportion control valve left side pilot valves 14 and right pilot valve 15, telescopic oil cylinder 12, amplitude oil cylinder 11 and main hoisting mechanism 8 and 9 three kinds of actions of auxiliary hoisting mechanism of shear leg when wherein getting on the bus multi-way valve 10 control hoisting operations; Rotary buffering valve 7 tools are to commutation and buffering function, and the revolution of control hoisting operation operates.The displacement of the selector valve valve rod in the multi-way valve 10 of getting on the bus is directly proportional with the delivery pressure of left pilot valve 14, right pilot valve 15, the delivery pressure of left side pilot valve 14 and right pilot valve 15 is directly proportional with the pivot angle of the handle of left pilot valve 14 and right pilot valve 15, so the exercises of hoisting operation are directly proportional with the work angle of left pilot valve 14 and right pilot valve 15 handles.Be respectively a pump, No. two pumps, No. three pumps, No. four pumps in the four-gear block pump 1 from right to left.No. four pumps in the four-gear block pump 1 provide pilot pressure, and No. three pumps provide power for get off supporting leg operation and rotary motor 13 actions, and No. two pumps provide power for telescopic oil cylinder 12 and amplitude oil cylinder 11, and one, No. two pump collaborates to provide power for lifting mechanism.The action of left side pilot valve 14 control rotary buffering valves 7 and auxiliary hoisting mechanism 9, the action of right pilot valve 15 control telescopic oil cylinder 12, amplitude oil cylinder 11 and main hoisting mechanisms 8.Wherein, the action of telescopic oil cylinder 12, amplitude oil cylinder 11 is switched by solenoid valve 6-1 in the control valve assembly 6 and solenoid valve 6-2.Control valve assembly 6 is realized the logic control function of hoist.
Claims (1)
1. hoist hydraulic pressure installation, this hoist hydraulic pressure installation comprises upper frame part and lower frame part, upper frame part comprises main hoisting mechanism, auxiliary hoisting mechanism, the multi-way valve of getting on the bus, amplitude oil cylinder, telescopic oil cylinder, rotary motor and rotary buffering valve, it is characterized in that four-gear block pump and lower frame part form pipeline and be connected, the four-gear block pump also forms pipeline with upper frame part and is connected, control valve assembly and main hoisting mechanism, auxiliary hoisting mechanism, rotary motor, rotary buffering valve forms pipeline and connects, the control valve assembly forms pipeline with two pilot valves and is connected, two pilot valves form pipeline with auxiliary hoisting mechanism and are connected, lower frame part comprises the multi-way valve of getting off, and is connected with pressure-limit valve in the multi-way valve of getting off.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01237657 CN2474763Y (en) | 2001-04-28 | 2001-04-28 | Crane hydraulic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01237657 CN2474763Y (en) | 2001-04-28 | 2001-04-28 | Crane hydraulic device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2474763Y true CN2474763Y (en) | 2002-01-30 |
Family
ID=33650417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01237657 Expired - Fee Related CN2474763Y (en) | 2001-04-28 | 2001-04-28 | Crane hydraulic device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2474763Y (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102788055A (en) * | 2012-08-07 | 2012-11-21 | 徐工集团工程机械股份有限公司 | Hydraulic system of wrecker |
| CN103287980A (en) * | 2013-06-27 | 2013-09-11 | 湖南中铁五新重工有限公司 | Cantilever crane vertical lift control system |
| CN104895869A (en) * | 2015-04-27 | 2015-09-09 | 徐工集团工程机械股份有限公司科技分公司 | Buffering module of hydraulic rotation platform |
| CN105697438A (en) * | 2016-04-06 | 2016-06-22 | 上海金盾特种车辆装备有限公司 | Landing leg hydraulic control device and vehicle using landing leg hydraulic control device |
| CN108423552A (en) * | 2017-11-30 | 2018-08-21 | 中船华南船舶机械有限公司 | A kind of crane frequency-changing control system and control method |
| CN108516465A (en) * | 2018-06-01 | 2018-09-11 | 浙江三装备有限公司 | hydraulic system and crane |
| CN109356893A (en) * | 2018-10-11 | 2019-02-19 | 武汉船用机械有限责任公司 | The hydraulic control system of luffing loop wheel machine |
| CN109592571A (en) * | 2018-10-31 | 2019-04-09 | 中船华南船舶机械有限公司 | A kind of crane based on hydraulic system |
| CN111089090A (en) * | 2019-10-30 | 2020-05-01 | 润琛液压机械南通有限公司 | Manual hydraulic multi-way valve of miniature excavator |
-
2001
- 2001-04-28 CN CN 01237657 patent/CN2474763Y/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102788055A (en) * | 2012-08-07 | 2012-11-21 | 徐工集团工程机械股份有限公司 | Hydraulic system of wrecker |
| CN102788055B (en) * | 2012-08-07 | 2015-03-25 | 徐工集团工程机械股份有限公司 | Hydraulic system of wrecker |
| CN103287980A (en) * | 2013-06-27 | 2013-09-11 | 湖南中铁五新重工有限公司 | Cantilever crane vertical lift control system |
| CN103287980B (en) * | 2013-06-27 | 2014-10-29 | 湖南中铁五新重工有限公司 | Cantilever crane vertical lift control system |
| CN104895869A (en) * | 2015-04-27 | 2015-09-09 | 徐工集团工程机械股份有限公司科技分公司 | Buffering module of hydraulic rotation platform |
| CN105697438B (en) * | 2016-04-06 | 2017-12-26 | 上海金盾特种车辆装备有限公司 | Leg hydraulic control device and the vehicle using the leg hydraulic control device |
| CN105697438A (en) * | 2016-04-06 | 2016-06-22 | 上海金盾特种车辆装备有限公司 | Landing leg hydraulic control device and vehicle using landing leg hydraulic control device |
| CN108423552A (en) * | 2017-11-30 | 2018-08-21 | 中船华南船舶机械有限公司 | A kind of crane frequency-changing control system and control method |
| CN108423552B (en) * | 2017-11-30 | 2019-08-13 | 中船华南船舶机械有限公司 | A kind of crane frequency-changing control system and control method |
| CN108516465A (en) * | 2018-06-01 | 2018-09-11 | 浙江三装备有限公司 | hydraulic system and crane |
| CN109356893A (en) * | 2018-10-11 | 2019-02-19 | 武汉船用机械有限责任公司 | The hydraulic control system of luffing loop wheel machine |
| CN109592571A (en) * | 2018-10-31 | 2019-04-09 | 中船华南船舶机械有限公司 | A kind of crane based on hydraulic system |
| CN109592571B (en) * | 2018-10-31 | 2020-05-05 | 中船华南船舶机械有限公司 | Crane based on hydraulic system |
| CN111089090A (en) * | 2019-10-30 | 2020-05-01 | 润琛液压机械南通有限公司 | Manual hydraulic multi-way valve of miniature excavator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |