CN102092647A - Hydraulic system used for revolving jogging control on crawler crane - Google Patents
Hydraulic system used for revolving jogging control on crawler crane Download PDFInfo
- Publication number
- CN102092647A CN102092647A CN2011100375140A CN201110037514A CN102092647A CN 102092647 A CN102092647 A CN 102092647A CN 2011100375140 A CN2011100375140 A CN 2011100375140A CN 201110037514 A CN201110037514 A CN 201110037514A CN 102092647 A CN102092647 A CN 102092647A
- Authority
- CN
- China
- Prior art keywords
- valve
- crawler crane
- revolving
- revolution
- fine motion
- 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.)
- Granted
Links
Images
Abstract
The invention provides a hydraulic system used for revolving jogging control on a crawler crane. The hydraulic system comprises a revolving pump motor loop, a revolving pump variable mechanism and a revolving slow valve, wherein the revolving slow valve comprises an electromagnetic directional valve and a pressure setting valve which are connected in series, one end of the revolving slow valve is connected with the input port of the revolving pump variable mechanism, and the other end of the revolving slow valve is connected with an oil tank. In the hydraulic system used for revolving jogging control on the crawler crane in the invention, a revolving slow valve is connected in parallel with the input port of the revolving pump variable mechanism to limit displacement of a revolving pump, thus revolving jogging control on the crawler crane can be effectively carried out, the structure is simple, the operation is simple, and the operation safety and high efficiency of the crawler crane can be effectively guaranteed.
Description
Technical field
The present invention relates to a kind of hydraulic efficiency pressure system, particularly, relate to a kind of hydraulic efficiency pressure system that is used for crawler crane revolution fine motion control.
Background technology
Crawler crane all has revolute function, promptly gets on the bus and can rotate with respect to getting off.In the crawler crane operation process, get on the bus sling weight and turn an angle after, will play weight and be offloaded to the destination, and then turn round, thereby finish one action circulation.
Thereby speed of revolutions is an important indicator of crawler crane operation.Improve speed of revolutions, can shorten the crawler crane single operation time, improve operating efficiency.But the speed of revolutions of crawler crane is high more, and the safety of its operation and stability are just poor more.Usually, the speed of revolutions of crawler crane is to realize by the angle of regulating rotary handle.If rotary handle has higher susceptibility, the low speed revolution control the when operator can't well carry out heavy duty, thus cause certain potential safety hazard; If the susceptibility of rotary handle is lower,, can not obtains higher speed of revolutions, thereby influence the operating efficiency of crawler crane even then the operator is set to end position with rotary handle when low carrying.
The revolution fine motion is meant the little discharge capacity of utilizing rotary pump, when the normal running rotary handle, also can obtain lower speed of revolutions, the accuracy control when speed of revolutions is low thereby the solution crawler crane is got on the bus.Thereby, be badly in need of providing a kind of hydraulic efficiency pressure system that is used for crawler crane revolution fine motion control.
Summary of the invention
The object of the present invention is to provide a kind of hydraulic efficiency pressure system that is used for crawler crane revolution fine motion control, need accurate when in place when getting on the bus, it can adopt lower speed of revolutions to slow down the moving velocity of weight, thereby reduces impact load, improves the accuracy rate in place of getting on the bus.
To achieve these goals, a kind of hydraulic efficiency pressure system that is used for crawler crane revolution fine motion control of the present invention, it comprises the rotary pump motor loop, variable displacement rotary pump mechanism and turn round valve at a slow speed, wherein, described revolution valve at a slow speed comprises that series connected solenoid directional control valve and pressure sets valve, and described revolution at a slow speed valve one end be connected to the input port of described variable displacement rotary pump mechanism, the other end connects fuel tank.
According to the above-mentioned hydraulic efficiency pressure system that is used for crawler crane revolution fine motion control, wherein, described solenoid directional control valve is the bi-bit bi-pass solenoid directional control valve.
According to the above-mentioned hydraulic efficiency pressure system that is used for crawler crane revolution fine motion control, wherein, described revolution valve at a slow speed is a plate valve.
According to the above-mentioned hydraulic efficiency pressure system that is used for crawler crane revolution fine motion control, wherein, described revolution valve at a slow speed is a Sandwich plate valve.
According to the above-mentioned hydraulic efficiency pressure system that is used for crawler crane revolution fine motion control, wherein, described revolution valve at a slow speed is a tube valve.
According to the above-mentioned hydraulic efficiency pressure system that is used for crawler crane revolution fine motion control, wherein, described revolution valve at a slow speed is a screw-in cartridge valve.
According to the above-mentioned hydraulic efficiency pressure system that is used for crawler crane revolution fine motion control, wherein, described solenoid directional control valve connects the input port of described variable displacement rotary pump mechanism, and described pressure is set valve and connected described fuel tank.
Therefore, a kind of hydraulic efficiency pressure system that is used for crawler crane revolution fine motion control of the present invention is turned round valve at a slow speed by one in parallel of input port place in variable displacement rotary pump mechanism, realized qualification to the rotary pump discharge capacity, thereby but actv. carries out crawler crane revolution fine motion control, it is simple in structure, easy to operate, actv. has ensured the safety and the high efficiency of crawler crane operation.
Description of drawings
Fig. 1 is a kind of structural representation that is used for the hydraulic efficiency pressure system of crawler crane revolution fine motion control of the present invention.
The specific embodiment
The present invention will be further described in detail below in conjunction with the drawings and specific embodiments, but not as a limitation of the invention.
The structural representation of a kind of hydraulic efficiency pressure system that is used for crawler crane revolution fine motion control of the present invention as shown in Figure 1.As seen from the figure, this hydraulic efficiency pressure system mainly comprises three parts, is respectively rotary pump motor loop 1, variable displacement rotary pump mechanism 2 and turn round valve 3 at a slow speed.Wherein, turn round valve 3 at a slow speed and be mainly used in the max.cap. of regulating rotary pump, thereby crawler crane is turned round fine motion control.Particularly, turning round at a slow speed, valve 3 comprises mutual series connected solenoid directional control valve 4 and pressure setting valve 5.Wherein, solenoid directional control valve 4 is connected to the input port of variable displacement rotary pump mechanism 2, and pressure is set 5 on valve and is connected on the fuel tank (not shown).
In a preferred embodiment of the invention, solenoid directional control valve 4 can adopt the bi-bit bi-pass solenoid directional control valve; Valve 3 can be screw-in cartridge valve and turn round at a slow speed, also can be plate valve, Sandwich plate valve, or tube valve, and the setting pressure of the setting of pressure wherein valve can be regulated setting accordingly according to different operating modes.
Below in conjunction with Fig. 1 a kind of method of work that is used for the hydraulic efficiency pressure system of crawler crane revolution fine motion control of the present invention is simply described once.As shown in Figure 1, under the situation of the electromagnet QM1 of solenoid directional control valve 4 outage, pressure oil Y1 and Y2 from rotary handle arrive control plunger 7 places that are used to control rotary pump through variable displacement rotary pump mechanism 2, thereby make the swashplate angle of rotary pump in minimum and maximum scope, change, to change the revolution capacity of pump; Under the situation of the electromagnet QM1 of solenoid directional control valve 4 energising, then pass through shuttle valve 6 in the variable displacement rotary pump mechanism 2 successively from the pressure oil Y1 of rotary handle and Y2, turning round at a slow speed, valve 3 interior solenoid directional control valve 4 and pressure setting valves 5 enter fuel tank, at this moment, set the top pressure of the force value may command variable displacement rotary pump mechanism 2 of valve 5 settings by pressure, thereby limited the peak output discharge capacity of rotary pump, finally realized the revolution fine motion control to crawler crane, it is accurately in place to have guaranteed that crawler crane is got on the bus.
Turn round the hydraulic efficiency pressure system of fine motion control by the crawler crane of said structure, when crawler crane in accurate lifting, when needing slower speed of revolutions, can realize that the revolution of stability and high efficiency is in place, it promptly is applicable to closed fhdraulic system, also is applicable to open type hydraulic system.
More than specific embodiments of the invention are described in detail, but the present invention is not restricted to specific embodiment described above, it is just as example.To those skilled in the art, any equivalent modifications that this hydraulic efficiency pressure system that is used for crawler crane revolution fine motion control is carried out and substituting also all among category of the present invention.Therefore, not breaking away from impartial conversion and the modification of having done under the spirit and scope of the present invention, all should contain within the scope of the invention.
Claims (7)
1. one kind is used for the hydraulic efficiency pressure system that crawler crane revolution fine motion is controlled, it is characterized in that, comprise the rotary pump motor loop, variable displacement rotary pump mechanism and turn round valve at a slow speed, wherein, described revolution valve at a slow speed comprises that series connected solenoid directional control valve and pressure sets valve, and described revolution at a slow speed valve one end be connected to the input port of described variable displacement rotary pump mechanism, the other end connects fuel tank.
2. the hydraulic efficiency pressure system that is used for crawler crane revolution fine motion control according to claim 1 is characterized in that described solenoid directional control valve is the bi-bit bi-pass solenoid directional control valve.
3. the hydraulic efficiency pressure system that is used for crawler crane revolution fine motion control according to claim 1 is characterized in that described revolution valve at a slow speed is a plate valve.
4. the hydraulic efficiency pressure system that is used for crawler crane revolution fine motion control according to claim 1 is characterized in that described revolution valve at a slow speed is a Sandwich plate valve.
5. the hydraulic efficiency pressure system that is used for crawler crane revolution fine motion control according to claim 1 is characterized in that described revolution valve at a slow speed is a tube valve.
6. the hydraulic efficiency pressure system that is used for crawler crane revolution fine motion control according to claim 1 is characterized in that described revolution valve at a slow speed is a screw-in cartridge valve.
7. the hydraulic efficiency pressure system that is used for crawler crane revolution fine motion control according to claim 1 is characterized in that, described solenoid directional control valve connects the input port of described variable displacement rotary pump mechanism, and described pressure is set valve and connected described fuel tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100375140A CN102092647B (en) | 2011-02-14 | 2011-02-14 | Hydraulic system used for revolving jogging control on crawler crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100375140A CN102092647B (en) | 2011-02-14 | 2011-02-14 | Hydraulic system used for revolving jogging control on crawler crane |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102092647A true CN102092647A (en) | 2011-06-15 |
| CN102092647B CN102092647B (en) | 2013-12-04 |
Family
ID=44125938
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100375140A Expired - Fee Related CN102092647B (en) | 2011-02-14 | 2011-02-14 | Hydraulic system used for revolving jogging control on crawler crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102092647B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102352876A (en) * | 2011-09-22 | 2012-02-15 | 中联重科股份有限公司 | Control system for variable pump and hydraulic walking arrangement |
| WO2013040780A1 (en) * | 2011-09-22 | 2013-03-28 | 长沙中联重工科技发展股份有限公司 | Control system for variable displacement pump and hydraulic travelling equipment |
| CN103527073A (en) * | 2013-10-23 | 2014-01-22 | 福田雷沃国际重工股份有限公司 | Rotation controlling hydraulic circuit system for rotary drilling rig |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3303946B2 (en) * | 1994-04-26 | 2002-07-22 | 株式会社小松製作所 | Crane turning control device |
| WO2009062484A1 (en) * | 2007-11-14 | 2009-05-22 | Terex-Demag Gmbh | Hydraulic control circuit for the overcontrol of a slewing gear drive |
| JP2009242006A (en) * | 2008-03-28 | 2009-10-22 | Ihi Corp | Turning control device of deck crane |
| CN201433063Y (en) * | 2009-04-03 | 2010-03-31 | 上海三一科技有限公司 | Caterpillar crane rotatory closed system |
| CN201729610U (en) * | 2010-07-26 | 2011-02-02 | 徐州重型机械有限公司 | Rotary hydraulic system of crane and crane |
-
2011
- 2011-02-14 CN CN2011100375140A patent/CN102092647B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3303946B2 (en) * | 1994-04-26 | 2002-07-22 | 株式会社小松製作所 | Crane turning control device |
| WO2009062484A1 (en) * | 2007-11-14 | 2009-05-22 | Terex-Demag Gmbh | Hydraulic control circuit for the overcontrol of a slewing gear drive |
| JP2009242006A (en) * | 2008-03-28 | 2009-10-22 | Ihi Corp | Turning control device of deck crane |
| CN201433063Y (en) * | 2009-04-03 | 2010-03-31 | 上海三一科技有限公司 | Caterpillar crane rotatory closed system |
| CN201729610U (en) * | 2010-07-26 | 2011-02-02 | 徐州重型机械有限公司 | Rotary hydraulic system of crane and crane |
Non-Patent Citations (1)
| Title |
|---|
| 张明辉: "《大型履带起重机回转液压系统仿真研究》", 《中国优秀博硕士学位论文全文数据库（硕士）工程科技Ⅱ辑》, 15 February 2007 (2007-02-15) * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102352876A (en) * | 2011-09-22 | 2012-02-15 | 中联重科股份有限公司 | Control system for variable pump and hydraulic walking arrangement |
| WO2013040780A1 (en) * | 2011-09-22 | 2013-03-28 | 长沙中联重工科技发展股份有限公司 | Control system for variable displacement pump and hydraulic travelling equipment |
| CN103527073A (en) * | 2013-10-23 | 2014-01-22 | 福田雷沃国际重工股份有限公司 | Rotation controlling hydraulic circuit system for rotary drilling rig |
| CN103527073B (en) * | 2013-10-23 | 2016-06-01 | 雷沃重工股份有限公司 | Rotary drilling rig control revolution hydraulic circuit system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102092647B (en) | 2013-12-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103244496B (en) | Rotary control valve group, revolution hydraulic control system and hoist | |
| CN102887435B (en) | Hydraulic system for controlling amplitude variation of crane boom, control method and crane | |
| CN201729610U (en) | Rotary hydraulic system of crane and crane | |
| CN102336370A (en) | Rotating hydraulic system of crane and its control method | |
| CN106678098B (en) | Crane hydraulic control system and crane | |
| CN201284201Y (en) | Hoist hydraulic control system of crane | |
| CN102491173B (en) | Crane and closed type hoisting negative power control system for crane | |
| CN105715597A (en) | Constant-backpressure direct drive type electro hydraulic servo system and control method thereof | |
| CN102092647B (en) | Hydraulic system used for revolving jogging control on crawler crane | |
| CN205446224U (en) | Formula electricity liquid servo is directly driven to invariable backpressure | |
| CN103950870A (en) | Forklift hydraulic system with energy recovery and double-pump oil supply functions | |
| CN104071709A (en) | Fixed fly jib stepless amplitude-variation control system for crane and crane | |
| CN108383039A (en) | A kind of energy-saving stepping type lifter structure hydraulic control system | |
| CN104533863B (en) | Crane rotation system control valve | |
| CN103807243B (en) | Engineering machinery ratio pressure-reducing cushioning valve | |
| CN103982475A (en) | Hydraulic control system for concrete spraying vehicle boom frame | |
| CN203754318U (en) | Crane winching hydraulic system and crane | |
| CN103397677B (en) | Based on hydraulic excavator movable arm loop and the control method thereof of hydraulic transformer | |
| CN106194680A (en) | The axial plunger pump installation of a kind of high accuracy electric proportional control and control method | |
| CN201648448U (en) | Steel ladle jacking hydraulic system controlling steel ladle lifting speed through proportional pressure | |
| CN202971075U (en) | Load sensitive pump, load sensitive hydraulic system and concrete pumping equipment | |
| CN102278331A (en) | Multi-way directional valve for lorry-mounted crane and control method thereof | |
| CN207406274U (en) | Stake machine equipment hydraulic speed-limiting system | |
| CN204549901U (en) | A kind of digital gravity variable amplitude hydraulic system | |
| CN104976188B (en) | Actuator, engineering machinery and jib thereof control apparatus and method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131204 Termination date: 20160214 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |