CN202451522U - Barrier damping device of large-flow hydraulic system - Google Patents
Barrier damping device of large-flow hydraulic system Download PDFInfo
- Publication number
- CN202451522U CN202451522U CN2012200546939U CN201220054693U CN202451522U CN 202451522 U CN202451522 U CN 202451522U CN 2012200546939 U CN2012200546939 U CN 2012200546939U CN 201220054693 U CN201220054693 U CN 201220054693U CN 202451522 U CN202451522 U CN 202451522U
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- barrier
- grid plate
- hole
- earial drainage
- shell
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Abstract
The utility model relates to a barrier damping device of a large-flow hydraulic system, which belongs to a part of geotechnical foundation engineering equipment. The barrier damping device is characterized by comprising a shell, a liquid inlet pipe, a liquid outlet pipe, 2 to 8 barrier plates and drain through holes, wherein the liquid inlet pipe and the liquid outlet pipe are arranged on two ends of the shell in parallel and are communicated with an inner cavity of the shell, the 2 to 8 barrier plates are arranged inside the inner cavity of the shell and are parallel to the liquid inlet pipe and the liquid outlet pipe, the drain through holes are sequentially arranged on the upper part or the lower part of each barrier plate, and the distance among the barrier plates is 20mm to 40mm; the aperture of the drain holes is 2.5mm to 5.0mm, the quantity N of the drain through holes is equal to the liquid flow rate Q/K, wherein the constant K is 7.5 to 12.5L/min; and the drain through holes are staggered to one another on the upper part or the lower part of each barrier plate. The cross section of the shell is in a rectangular shape or a circular shape. Compared with the prior art, the barrier damping device has beneficial effects on trial that the peak pressure of the high-temperature high-pressure hydraulic oil with pulse-type varied pressure is greatly reduced by 75 percent; and the service life of a cooling heat radiator is greatly prolonged for more than 4 times.
Description
Technical field: the utility model belongs to the parts of ground foundation engineering equipment, especially for a kind of high-volume hydraulic system barrier damping buffering device of grouting pump.
Background technique: the high-temp liquid after the power conveying equipment work done of existing technology grouting pump, in oil cylinder during work done, oily temperature rises to 40 ℃ rapidly, when oil cylinder is back to fuel tank, must reduce the oil temperature through cooling radiator like hydraulic oil.But; Not only the oil temperature is high for the in-oil cylinder backflow hydraulic oil of the power conveying equipment of the grouting pump that flow is bigger; And pressure forms the pulsed variation after the instantaneous switching of the selector valve on the oil returning tube; When the withdrawing oil that this pressure pulse formula changes directly gets into wing formula cooling radiator; Peak pressure will inevitably form sizable impact collapsing force from the chip inner chamber to structural weak up to the HTHP hydraulic pressure more than the 4MPa to the heat transmission chip of cooling radiator with oil, causes cooling radiator to shorten dramatically working life.And the working life of cooling radiator is short, has directly influenced the normal operation of whole grouting pump.
This shows, study and design a kind of peak pressure that reduces the HTHP hydraulic pressure of pressure pulse formula variation with oil significantly, thereby the high-volume hydraulic system barrier damping buffering device that has prolonged cooling radiator working life significantly is necessary.
The model utility content: the purpose of the utility model is the deficiency that overcomes existing technology; Design a kind of peak pressure that reduces the HTHP hydraulic pressure of pressure pulse formula variation with oil significantly, thus the high-volume hydraulic system barrier damping buffering device that has prolonged cooling radiator working life significantly.
The purpose of the utility model is achieved in that
A kind of high-volume hydraulic system barrier damping buffering device; It is characterized in that comprising housing; Parallel configuration is in the housing two ends and be communicated in the liquid inlet and outlet pipe of housing inner chamber; Be positioned at the 2-8 piece grid plate of housing inner chamber and the parallel installation of liquid inlet and outlet pipe, be positioned at earial drainage through hole every grid plate top or bottom, that arrange in order, wherein
---said grid plate mutual spacing is the 20-40 millimeter;
---the aperture of said earial drainage through hole is the 2.5-5.0 millimeter, the number N=flow quantity Q/K of earial drainage through hole, in the formula constant K get the 7.5-12.5 liter/minute;
---said earial drainage through hole staggers in the position of grid plate top or bottom each other.
The cross section of said housing is rectangular, or circular.
The running of the utility model is: the pulsed that the selector valve from the oil cylinder oil returning tube gets into the liquid inlet pipe of the utility model changes HTHP hydraulic pressure more than the peak pressure 4MPa with oil; When earial drainage through hole flow through grid plate top or bottom, that arrange in order; Receive stopping of the 1st grid plate non-earial drainage throughhole portions plate face; Can only arrange in order from the 1st grid plate top, the aperture is N earial drainage through hole high speed ejection of 2.5-5.0 millimeter, its pulsed changes peak pressure and stops at such grid plate---compelledly from the ejection process of earial drainage through hole, be reduced; Get into spacing and be the 2nd grid plate of 20-40 millimeter and the space between the 1st grid plate; Receive stopping of the 2nd grid plate non-earial drainage throughhole portions plate face; Because the earial drainage through hole staggers in the position of grid plate top or bottom each other; Can only arrange in order from the 2nd grid plate bottom, the aperture is to spray N the earial drainage through hole of 2.5-5.0 millimeter, its pulsed changes peak pressure and stops at the 2nd grid plate---be compelled from the earial drainage through hole, further to be reduced in the ejection process; So process is repeated on the space between the 3rd grid plate and the 2nd grid plate, Until from arrange in order from the 8th grid plate bottom, the aperture is to gush out N the earial drainage through hole of 2.5-5.0 millimeter; This moment, its pulsed variation peak pressure dropped to below the 1MPa; Flow out into the backflow hydraulic oil of cooling radiator heat transmission blade inner chamber from drain pipe, the pulsed impact force that chip inner-cavity structure weakness is formed reduces significantly.
The high-volume hydraulic system barrier damping buffering device that the utility model enforcement obtains through on probation, has compared with prior art shown following beneficial effect:
1, reduced the peak pressure of the HTHP hydraulic pressure of pressure pulse formula variation significantly with oil.The pulsed that selector valve from the oil cylinder oil returning tube gets into the liquid inlet pipe of the utility model changes HTHP hydraulic pressure more than the peak pressure 4MPa with oil; Flow through behind the barrier damping buffering device of the utility model; The pulsed that flows into the hydraulic oil of cooling radiator from the drain pipe of the utility model changes peak pressure and is reduced to below the 1MPa, reduced HTHP hydraulic pressure that the pressure pulse formula changes and reached 75% with the peak pressure of oil.
2, prolonged cooling radiator working life significantly.Do not dispose the existing technology grouting pump of the high-volume hydraulic system barrier damping buffering device of the utility model; Be no more than 6 months the working life of its cooling radiator; And after the grouting pump of specification has disposed the high-volume hydraulic system barrier damping buffering device of the utility model equally; Be not less than 24 months the working life of its cooling radiator, promptly prolonged at least 4 times the working life of cooling radiator.
Description of drawings: Fig. 1 is the schematic representation that meets the utility model thematic structure; Fig. 2 is the A-A generalized section of Fig. 1.
Embodiment: the implementation detail of the utility model is explained as follows below in conjunction with accompanying drawing:
Like Fig. 1, shown in 2; A kind of high-volume hydraulic system barrier damping buffering device; It is characterized in that comprising housing 1, parallel configuration is in the housing two ends and be communicated in the liquid inlet and outlet pipe 2,3 of housing inner chamber, is positioned at the 2-8 piece grid plate 4 of housing inner chamber and the parallel installation of liquid inlet and outlet pipe; Be positioned at earial drainage through hole 5 every grid plate top or bottom, that arrange in order, wherein
---said grid plate mutual spacing is the 20-40 millimeter;
---the aperture of said earial drainage through hole is the 2.5-5.0 millimeter, the number N=flow quantity Q/K of earial drainage through hole, in the formula constant K get the 7.5-12.5 liter/minute;
---said earial drainage through hole staggers in the position of grid plate top or bottom each other.
The cross section of said housing 1 is rectangular, or circular.
The high-volume hydraulic system barrier damping buffering device that the utility model implements to obtain mainly is used in the hydraulic power conveying equipment of big flow grouting pump, also can be used for the high-volume hydraulic system that similarly exists the pressure pulse formula to change.
Claims (2)
1. high-volume hydraulic system barrier damping buffering device; It is characterized in that comprising housing (1); Parallel configuration is in the housing two ends and be communicated in the liquid inlet and outlet pipe (2,3) of housing inner chamber; Be positioned at the 2-8 piece grid plate (4) of housing inner chamber and the parallel installation of liquid inlet and outlet pipe, be positioned at earial drainage through hole (5) every grid plate top or bottom, that arrange in order, wherein
---said grid plate mutual spacing is the 20-40 millimeter;
---the aperture of said earial drainage through hole is the 2.5-5.0 millimeter, the number N=flow quantity Q/K of earial drainage through hole, in the formula constant K get the 7.5-12.5 liter/minute;
---said earial drainage through hole staggers in the position of grid plate top or bottom each other.
2. damping buffering device according to claim 1 is characterized in that the cross section of said housing (1) is rectangular or circular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200546939U CN202451522U (en) | 2012-02-21 | 2012-02-21 | Barrier damping device of large-flow hydraulic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200546939U CN202451522U (en) | 2012-02-21 | 2012-02-21 | Barrier damping device of large-flow hydraulic system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202451522U true CN202451522U (en) | 2012-09-26 |
Family
ID=46867388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200546939U Expired - Fee Related CN202451522U (en) | 2012-02-21 | 2012-02-21 | Barrier damping device of large-flow hydraulic system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202451522U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102588390A (en) * | 2012-02-21 | 2012-07-18 | 镇江宝城注浆设备有限公司 | Barrier damp buffering device for large-flow hydraulic system |
-
2012
- 2012-02-21 CN CN2012200546939U patent/CN202451522U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102588390A (en) * | 2012-02-21 | 2012-07-18 | 镇江宝城注浆设备有限公司 | Barrier damp buffering device for large-flow hydraulic system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20120926 Termination date: 20150221 |
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| EXPY | Termination of patent right or utility model |