CN2703034Y - Hydraulic differential controller for static piling machine - Google Patents
Hydraulic differential controller for static piling machine Download PDFInfo
- Publication number
- CN2703034Y CN2703034Y CN 200420044870 CN200420044870U CN2703034Y CN 2703034 Y CN2703034 Y CN 2703034Y CN 200420044870 CN200420044870 CN 200420044870 CN 200420044870 U CN200420044870 U CN 200420044870U CN 2703034 Y CN2703034 Y CN 2703034Y
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- China
- Prior art keywords
- valve
- communicated
- cartridge valve
- cartridge
- oil
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- Expired - Fee Related
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Abstract
The utility model relates to a hydraulic differential controller for static pile machine, comprising a multiple valve (1), while the pressure oil inlet of the multiple valve (1) is communicated with the output end of the pressure oil supply system; the utility model has the structure characteristic of that the utility model yet comprises a reversal control valve (2), a cartridge valve C, and a cartridge valve D, while the pressure oil outlet of the multiple valve (1) is communicated with the forward pressure oil inlet of a pressing pile cylinder (3), the return port of the multiple valve (1) is communicated with the outlet of the cartridge valve C, the inlet of the cartridge valve C is communicated with the outlet of the cartridge valve D, and the connecting point is communicated with the back inlet/ oil-out of the pressing pile cylinder (3); the inlet of the cartridge valve D is communicated with the outlet of the multiple valve (1), the outlet of the reversal control valve (2) is communicated with the control end of the cartridge valve C, and the return port of the reversal control valve (2) is communicated with the control end of the cartridge valve D. The utility model can avoid pressure loss of the hydraulic system at the crossing point, and heating of the hydraulic system can be reduced greatly, so the utility model does not appear superheating phenomenon.
Description
Technical field
The utility model relates to a kind of hydraulic control device, and particularly a kind of static pile press hydraulic differential control device is applicable to the hydraulic control system of static pile press.Belong to static pile press
Technical field.
Background technology
At present, characteristics that static pile press is low with noise, pressure is big and being widely used.Static pile press mainly relies on the piling of piling hydraulic oil cylinder driving piling piece.Static pile press is in the course of work, four processes that comprise quick piling, piling at a slow speed, stop and withdrawing, and therefore, the course of work of piling oil cylinder is for stretching out fast, stretch out at a slow speed, stop and four processes of withdrawing.In the prior art, the control piling oil cylinder course of work is mainly finished by the banked direction control valves in the hydraulic control system, there is following shortcoming: in described hydraulic control system, the piling of stretching out fast of piling oil cylinder is controlled by the P station of banked direction control valves, piling this moment oil cylinder is in differential fast state, the oil-in of system and oil return opening concentrate on the outlet B of described four four-way banked direction control valves, therefore, cause the flow of B mouth excessive, build-up of pressure loss easily on the one hand, on the other hand, cause hydraulic system seriously to generate heat easily.
The utility model content
The utility model technical issues that need to address, promptly the purpose of this utility model is in order to overcome the shortcoming that the hydraulic control system heating is serious, the pressure loss is big of prior art static pile press, a kind of static pile press hydraulic differential control device to be provided.
Technical problem of the present utility model can solve by taking following measure: static pile press hydraulic differential control device, comprise banked direction control valves 1, the pressure oil input port of banked direction control valves 1 is communicated with the output of pressure oil feed system, its design feature is: also comprise reversing control valve 2 and cartridge valve C, cartridge valve D, the pressure oil delivery outlet of banked direction control valves 1 is communicated with the positive pressure oil input port of piling oil cylinder 3, oil return opening is communicated with the delivery outlet of cartridge valve C, the input port of cartridge valve C is communicated with the delivery outlet of cartridge valve D, both junctions are communicated with the reverse input port/oil-out of piling oil cylinder 3, the input port of cartridge valve D is communicated with the delivery outlet of banked direction control valves 1, and the delivery outlet of reversal valve 2 is communicated with the control end of cartridge valve C, the piston rod that oil return opening is communicated with the control end piling oil cylinder 3 of cartridge valve D connects pile chuck 4.
Technical problem of the present utility model can also solve by taking following measure:
Described banked direction control valves 1 is a three-position four-way valve, comprises normal sequence station P, parallel station P ' and intersects station P ".
Described reversal valve is a two position three-way valve, comprises normal sequence station P
1With intersection station P
1'.
The utlity model has following outstanding effect:
1, the utility model is owing to adopted cartridge valve to control the oil-feed and the oil return of piling oil cylinder respectively, the way to cycle oil of hydraulic system need not the oil-out through banked direction control valves, thereby that has avoided pressure oil enters and goes out the crosspoint that forms in banked direction control valves, therefore, can avoid of the loss of the pressure of hydraulic system, can alleviate the heating of hydraulic system greatly, superheating phenomenon can not occur in this crosspoint.
2, because the metered flow of cartridge valve is bigger 3～4 times than the multiple directional control valve of ad eundem, therefore, can hold the big flow of hydraulic pressure that the piling oil cylinder produces under differential duty, the pressure loss is little, heating is few.
3, because hand-operated direction valve is set cartridge valve is carried out guide's remote control, therefore, the required power of controlling is little, makes whole Differential Control apparatus structure simple, easy to use.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment 1.
Fig. 2 is the Differential Control apparatus structure schematic diagram of prior art.
The specific embodiment
Fig. 1 constitutes embodiment 1 of the present utility model.
As can be seen from Figure 1, present embodiment is by banked direction control valves 1, reversing control valve 2 and cartridge valve C, cartridge valve D constitutes, the pressure oil input port of banked direction control valves 1 is communicated with the output of pressure oil feed system, the pressure oil delivery outlet of banked direction control valves 1 is communicated with the positive pressure oil input port of piling oil cylinder 3, oil return opening is communicated with the delivery outlet of cartridge valve C, the input port of cartridge valve C is communicated with the delivery outlet of cartridge valve D, both junctions are communicated with the reverse input port/oil-out of piling oil cylinder 3, the input port of cartridge valve D is communicated with the delivery outlet of banked direction control valves 1, the delivery outlet of reversal valve 2 is communicated with the control end of cartridge valve C, oil return opening is communicated with the control end of cartridge valve D, and the piston rod of piling oil cylinder 3 connects pile chuck 4.
In the present embodiment: described banked direction control valves 1 is a three-position four-way valve, comprises normal sequence station P, parallel station P ' and intersects station P ".Described reversal valve is a two position three-way valve, comprises normal sequence station P
1With intersection station P
1'.
Shortcoming below in conjunction with accompanying drawing 1, accompanying drawing 2 explanation operating principles of the present utility model and the existence of analysis prior art.
As can be seen from Figure 1, the piston rod of piling oil cylinder 3 connects pile chuck 4, when piling oil cylinder 3 working properly stretch out piling at a slow speed, when stopping, withdrawing the backhaul state, banked direction control valves 1 is in normal sequence station P, this moment, cartridge valve C was open-minded, and the oil return opening of piling oil cylinder 3 is communicated with the oil return opening of banked direction control valves 1 by cartridge valve C.When requiring piling oil cylinder 3 to be operated in to stretch out quick piling state, this moment, banked direction control valves 1 was in parallel station P ', open cartridge valve D, close cartridge valve C by reversing control valve 2 simultaneously, the oil return opening of piling oil cylinder 3 becomes buffer brake oil input port, piling this moment oil cylinder is in differential state, realizes quick piling function.When needs promoted piling oil cylinder 3, banked direction control valves 1 was in intersection station P ", reversing control valve 2 is in intersection station P
1'.Therefore, no matter piling oil cylinder 3 is to work under the normal condition or work under differential state, and the way to cycle oil of hydraulic system need not the oil-out through banked direction control valves, can alleviate the heating of hydraulic system greatly, superheating phenomenon can not occur.And, therefore, can hold the big flow of hydraulic pressure that the piling oil cylinder produces under differential duty because the metered flow of cartridge valve is bigger 3～4 times than the multiple directional control valve of ad eundem, the pressure loss is little, heating is few.
As can be seen from Figure 2, when piling oil cylinder 3 was operated in differential state, the way to cycle oil of hydraulic system must be through the oil-out of banked direction control valves 1, caused the heating of hydraulic system, superheating phenomenon occurred easily, and the big flow of hydraulic pressure that under differential duty, produces of piling oil cylinder, the build-up of pressure loss.
The characteristics of other embodiment of the present utility model are: reflector 3 can be conical cover, paraboloidal cover or other polygon covers.All the other are with embodiment 1.
Claims (3)
1, static pile press hydraulic differential control device, comprise banked direction control valves (1), the pressure oil input port of banked direction control valves (1) is communicated with the output of pressure oil feed system, it is characterized in that: also comprise reversing control valve (2) and cartridge valve C, cartridge valve D, the pressure oil delivery outlet of banked direction control valves (1) is communicated with the positive pressure oil input port of piling oil cylinder (3), oil return opening is communicated with the delivery outlet of cartridge valve C, the input port of cartridge valve C is communicated with the delivery outlet of cartridge valve D, both junctions are communicated with the reverse input port/oil-out of piling oil cylinder (3), the input port of cartridge valve D is communicated with the delivery outlet of banked direction control valves (1), the delivery outlet of reversal valve (2) is communicated with the control end of cartridge valve C, oil return opening is communicated with the control end of cartridge valve D, and the piston rod of piling oil cylinder (3) connects pile chuck (4).
2, static pile press hydraulic differential control device according to claim 1, it is characterized in that: banked direction control valves (1) is a three-position four-way valve, comprises normal sequence station P, parallel station P ' and intersects station P ".
3, static pile press hydraulic differential control device according to claim 1, it is characterized in that: reversal valve is a two position three-way valve, comprises normal sequence station P
1With intersection station P
1'.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420044870 CN2703034Y (en) | 2004-04-19 | 2004-04-19 | Hydraulic differential controller for static piling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420044870 CN2703034Y (en) | 2004-04-19 | 2004-04-19 | Hydraulic differential controller for static piling machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2703034Y true CN2703034Y (en) | 2005-06-01 |
Family
ID=34775385
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420044870 Expired - Fee Related CN2703034Y (en) | 2004-04-19 | 2004-04-19 | Hydraulic differential controller for static piling machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2703034Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102094864A (en) * | 2011-03-23 | 2011-06-15 | 李新桥 | Hydraulic valve for pile pressing control for pile pressing machine |
| CN103883576A (en) * | 2013-12-31 | 2014-06-25 | 三一汽车起重机械有限公司 | Pounder hydraulic system and engineering machinery |
| CN105952692A (en) * | 2016-06-23 | 2016-09-21 | 广东力源液压机械有限公司 | Hydraulic control system for sequential control of hydraulic pile hammers |
-
2004
- 2004-04-19 CN CN 200420044870 patent/CN2703034Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102094864A (en) * | 2011-03-23 | 2011-06-15 | 李新桥 | Hydraulic valve for pile pressing control for pile pressing machine |
| CN103883576A (en) * | 2013-12-31 | 2014-06-25 | 三一汽车起重机械有限公司 | Pounder hydraulic system and engineering machinery |
| CN103883576B (en) * | 2013-12-31 | 2016-05-11 | 三一汽车起重机械有限公司 | Hammer ram hydraulic system and engineering machinery |
| CN105952692A (en) * | 2016-06-23 | 2016-09-21 | 广东力源液压机械有限公司 | Hydraulic control system for sequential control of hydraulic pile hammers |
| CN105952692B (en) * | 2016-06-23 | 2018-03-02 | 广东力源液压机械有限公司 | A kind of hydraulic control system of hydraulic pile hammer sequential control |
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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 |