CN211059121U - Pump source explosion-proof system for hydraulic piling - Google Patents
Pump source explosion-proof system for hydraulic piling Download PDFInfo
- Publication number
- CN211059121U CN211059121U CN201922180547.5U CN201922180547U CN211059121U CN 211059121 U CN211059121 U CN 211059121U CN 201922180547 U CN201922180547 U CN 201922180547U CN 211059121 U CN211059121 U CN 211059121U
- Authority
- CN
- China
- Prior art keywords
- pump source
- port
- way valve
- explosion
- 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.)
- Active
Links
Images
Landscapes
- Fluid-Pressure Circuits (AREA)
Abstract
The utility model relates to a pump source explosion-proof system for hydraulic pressure pile, be connected and be used for the explosion-proof module in pump source including the electrical control end and with the electrical control end, explosion-proof module sets up between pump source and pneumatic cylinder, explosion-proof module includes first check valve, first overflow valve, first two-way valve, first switching-over valve, second two-way valve and a pressure sensor, owing to cause high frequency instantaneous impact to connecting first high-pressure hose and second high-pressure hose because of the piston rod direction of motion high frequency switching of pneumatic cylinder, leads to first high-pressure hose and second high-pressure hose to age, damaged easily, the utility model discloses set up explosion-proof module in the pump source oil-out, be close to the pump source, shorten monitoring range, can make its reaction sensitive, effectively prevent the pipeline to break and cause a large amount of external leakages, the security is high.
Description
Technical Field
The utility model relates to a hydraulic pressure pile technical field especially relates to a pump source explosion-proof system for hydraulic pressure pile.
Background
The hydraulic pile driving technology in the market cannot meet the actual application and the requirements of customers on the hydraulic pile driving technology, a piston rod of a hydraulic cylinder in the prior art has no anti-explosion, anti-leakage and danger-removing structure, or is directly subjected to pump source anti-explosion by only using a simple anti-explosion valve, the risk is high, when the piston rod of the hydraulic cylinder performs pile driving operation, the piston rod movement direction of the hydraulic cylinder is switched at high frequency to cause high-frequency instantaneous impact on the system, the hose is the weakest part of a pile driver system, is in a severe environment of a construction site while suffering hydraulic impact, the aging and damage of the system are accelerated, when an oil pipe is damaged, if the system has no special anti-explosion device, the oil pump continues to operate, all oil liquid remaining in an oil tank of the hydraulic station is discharged through a broken part of the oil pipe, simultaneously, the piston rod of the hydraulic cylinder falls due to the pressure loss of an oil inlet of the oil pipe, so that a part of the oil inlet in the hydraulic cylinder is discharged from the broken oil pipe, the oil inlet of the oil pipe falls down, the oil inlet of the hydraulic cylinder falls, and the oil inlet of the hydraulic cylinder is not capable of breaking in a main pump, and the hydraulic system is capable of discharging the main pump in a high-pressure storage oil pipe of discharging the main pump in a high-pressure oil storage oil tank, the hydraulic system is capable of discharging the high-pressure of discharging the hydraulic system, and discharging the hydraulic system is capable of discharging the hydraulic system, the hydraulic system is capable of discharging the high-pressure of discharging oil pipe is not capable of discharging the high-pressure of discharging oil pipe is capable of discharging the high-pressure of discharging oil-pressure of discharging the high-pressure;
therefore, the safety of the piston rod of the hydraulic cylinder is seriously affected by the explosion-proof problem of no effective pump source, and the urgent need to be solved.
SUMMERY OF THE UTILITY MODEL
The utility model aims at prior art's defect, provide an explosion-proof system of pump source for hydraulic pressure pile that effectual pump source is explosion-proof, the security is high.
The utility model discloses a realize through following technical scheme: a pump source explosion-proof system for hydraulic piling comprises an electric control end and an explosion-proof module which is connected with the electric control end and used for pump source explosion-proof, wherein the explosion-proof module is arranged between a pump source and a hydraulic cylinder, the explosion-proof module comprises a first one-way valve, a first overflow valve, a first two-way valve, a first reversing valve, a second two-way valve and a first pressure sensor, a c port of the first two-way valve is connected with the pump source, an a port of the first two-way valve is connected with an a port of the first reversing valve, a b port of the first two-way valve is connected with an a port of the first overflow valve, the first reversing valve is connected with the electric control end, a port of the first reversing valve is connected with an a port of the first one-way valve, a port of the first one-way valve is connected with an oil tank of the pump source, a port of the first reversing valve is connected with an a port of the second two-way valve, a port of the first reversing valve is connected with a port of the second two-way valve, the port b of the first overflow valve and the port d of the first two-way valve are both connected with an oil tank of the pump source, the first pressure sensor is connected with the electric control system and connected with the port c of the second two-way valve, the first pressure sensor is used for monitoring the outlet pressure of the pump source, and the port b of the second two-way valve is connected with an oil inlet of the pump source.
Furthermore, a port c of the second two-way valve is connected with a rodless cavity of the hydraulic cylinder, and a rod cavity of the hydraulic cylinder is connected with the pump source.
Furthermore, a first high-pressure hose is connected between the c port of the second two-way valve and a rodless cavity of the hydraulic cylinder, and a second high-pressure hose is connected between the pump source and a rod cavity of the hydraulic cylinder.
Furthermore, a first explosion-proof valve is arranged between the first high-pressure hose and a rodless cavity of the hydraulic cylinder, and a second explosion-proof valve is arranged between the second high-pressure hose and a rod cavity of the hydraulic cylinder.
This practical neotype beneficial effect is: because the piston rod direction of motion high frequency that switches because of the pneumatic cylinder causes high frequency instantaneous impact to connecting first high-pressure hose and second high-pressure hose, leads to first high-pressure hose and second high-pressure hose ageing, damaged easily, the utility model discloses set up explosion-proof module in the pump source oil-out, be close to the pump source, shorten monitoring range, can make its reaction sensitive, effectively prevent that the pipeline breaks and causes a large amount of leakages.
Drawings
Fig. 1 is a schematic diagram of the system structure of the present invention;
fig. 2 is a schematic system structural diagram of the first two-way valve or the second two-way valve according to the present invention;
in the figure: 1. a first check valve; 2. a first overflow valve; 3. a first two-way valve; 31. a control chamber; 32. a valve core; 4. a first direction changing valve; 5. a second two-way valve; 6. a first pressure sensor; 7. a first high pressure hose; 8. a second high pressure hose; 9. a first explosion-proof valve; 10. a second explosion-proof valve; 11. a rodless cavity; 12. there is a rod cavity.
Detailed Description
The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and the protection scope of the present invention can be clearly and clearly defined. In the present invention, directional terms such as "up", "down", "front", "back", "left", "right", "top", "bottom", etc. refer to directions of the attached drawings only. Accordingly, the directional terms used are used for describing and understanding the present invention, and are not used for limiting the present invention.
As shown in fig. 1-2, a pump source explosion-proof system for hydraulic piling comprises an electrical control end and an explosion-proof module connected with the electrical control end and used for pump source explosion-proof, wherein the explosion-proof module is arranged between a pump source and a hydraulic cylinder, the explosion-proof module comprises a first one-way valve 1, a first overflow valve 2, a first two-way valve 3, a first reversing valve 4, a second two-way valve 5 and a first pressure sensor 6, a port c of the first two-way valve 3 is connected with the pump source, a port a of the first two-way valve 3 is connected with a port a of the first reversing valve 4, a port b of the first two-way valve 3 is connected with a port a of the first overflow valve 2, the first reversing valve 4 is connected with the electrical control end, a port c of the first reversing valve 4 is connected with a port a of the first one-way valve 1, a port b of the first one-way valve 1 is connected with an oil tank of the pump source, a port b of the first reversing valve 4 is connected with a port of the second two-way valve 5, and a port d of the first reversing valve 4 is respectively connected with The port c is connected, the port b of the first overflow valve 2 and the port d of the first two-way valve 3 are both connected with an oil tank of the pump source, the first pressure sensor 6 is connected with the electric control system, the first pressure sensor 6 is connected with the port c of the second two-way valve 5, the first pressure sensor 6 is used for monitoring the outlet pressure of the pump source, and the port b of the second two-way valve 5 is connected with an oil inlet of the pump source.
The port c of the second two-way valve 5 is connected with a rodless cavity 11 of the hydraulic cylinder, a rod cavity 12 of the hydraulic cylinder is connected with a pump source, a first high-pressure hose 7 is connected between the port c of the second two-way valve 5 and the rodless cavity 11 of the hydraulic cylinder, a second high-pressure hose 8 is connected between the pump source and the rod cavity 12 of the hydraulic cylinder, a first explosion-proof valve 9 is arranged between the first high-pressure hose 7 and the rodless cavity 11 of the hydraulic cylinder, and a second explosion-proof valve 10 is arranged between the second high-pressure hose 8 and the rod cavity 12 of the hydraulic cylinder.
The pump source comprises a motor, a gear pump, a pump source overflow valve and a pump source check valve, the gear pump is connected with the motor and used for driving the gear pump to operate, an oil inlet of the gear pump is connected with an oil tank, an oil outlet of the gear pump is connected with an oil inlet of the pump source overflow valve, an oil outlet of the pump source check valve is connected with the oil tank of the pump source, and a front oil path of the pump source check valve is connected with an outlet of the second high-pressure hose 8.
The utility model discloses a theory of operation:
starting a pump source to provide energy for the explosion-proof module and the hydraulic cylinder, wherein oil firstly enters the explosion-proof module; the first reversing valve 4 is in a parallel position by default, the control cavity 31 of the second two-way valve 5 is pressed, the second two-way valve 5 is closed, the control cavity 31 of the first two-way valve 3 is decompressed and opened, hydraulic oil flows back to the oil tank through the first two-way valve 3, the electric control end switches the first reversing valve 4 to a cross position through the electric control end after confirming that each connecting pipeline is normal, the control cavity 31 of the second two-way valve 5 is decompressed, the second two-way valve 5 is opened, the control cavity 31 of the first two-way valve 3 is pressed, the first two-way valve 3 is closed, oil is conveyed to the action control module through the first high-pressure hose 7, and the first two-way valve 3 and the first two-way valve 2 form a large-diameter safety valve to play a role in overload prevention.
Explosion-proof, prevent letting out the function: when the high-pressure oil leakage prevention device starts to work, the first pressure sensor 6 can read the output pressure of the port end of the second two-way valve 5 and feed back the data to the electric control end, if the first high-pressure hose 7 is broken to cause large-amplitude pressure reduction, the electric control end analyzes and then switches the first reversing valve 4 from a cross position to a parallel position, so that the control cavity 31 of the second two-way valve 5 is pressed, the second two-way valve 5 is closed, the control cavity 31 of the first two-way valve 3 is decompressed, the first two-way valve 3 is opened, high-pressure oil flows back to the oil tank in an internal circulation mode, and more external leakage is prevented.
Compared with the prior art, the method has the following advantages:
the utility model discloses a in explosion-proof, the pressure regulating of pump source department and main pump protection: an explosion-proof module is arranged at an outlet of a pump source, the explosion-proof device comprises a first check valve 1, a first overflow valve 2, a first two-way valve 3, a second two-way valve 5, a first reversing valve 4 and a first pressure sensor 6, and the explosion-proof module can monitor the pressure of the pump source of the system while playing an explosion-proof role: the hydraulic oil output by the pump source is conveyed to the hydraulic action control module through the explosion-proof device and the first high-pressure hose 7. The first pressure sensor 6 serving as a pressure monitoring point is arranged behind the second two-way valve 5 and before the first high-pressure hose 7 is connected, when the first high-pressure hose 7 is damaged and broken, the pressure of the pressure monitoring point is rapidly reduced, the electrical control end receives an abnormal signal at the moment, the first reversing valve 4 on the anti-explosion module is switched, the second two-way valve 5 at the outlet end is closed, the first two-way valve 3 is opened, high-pressure oil forms internal circulation, namely, the high-pressure oil is directly conveyed back to an oil tank of a hydraulic station, the gear pump is not required to be emergently stopped while leakage is avoided, and damage to the gear pump and a motor is avoided. When the system is in normal operation, the second two-way valve 5 at the oil outlet end is in a normally open state, and the control port of the first two-way valve 3 at the oil return end is connected with the oil return path after passing through the first overflow valve 2, namely, the first overflow valve 2 is used as a pilot valve of the first two-way valve 3 at the oil return end, so that the pilot valve forms a large-diameter overflow valve to protect the system.
The utility model discloses set up system overload protection, set up explosion-proof equipment in the pump source export, be close to the pump source, shorten monitoring range, can make its reaction sensitive, effectively prevent the pipeline to break and cause a large amount of leakages, can carry out effectual pump source explosion-proof, the security is high.
The above embodiments are described in more detail and with reference to specific details, but should not be construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention.
Claims (4)
1. The utility model provides an explosion-proof system of pump source for hydraulic pressure pile, includes the electrical control end and is connected and be used for the explosion-proof module of pump source with the electrical control end, and explosion-proof module sets up between pump source and pneumatic cylinder, its characterized in that: the explosion-proof module comprises a first one-way valve (1), a first overflow valve (2), a first two-way valve (3), a first reversing valve (4), a second two-way valve (5) and a first pressure sensor (6), wherein a port c of the first two-way valve (3) is connected with a pump source, a port a of the first two-way valve (3) is connected with a port a of the first reversing valve (4), a port b of the first two-way valve (3) is connected with a port a of the first overflow valve (2), the first reversing valve (4) is connected with an electric control end, a port c of the first reversing valve (4) is connected with a port a of the first one-way valve (1), a port b of the first one-way valve (1) is connected with an oil tank of the pump source, a port b of the first reversing valve (4) is connected with a port of the second two-way valve (5), and a port d of the first reversing valve (4) is respectively connected with a port b of the second two-way valve (5) and a port c port of the first two-way, the port b of the first overflow valve (2) and the port d of the first two-way valve (3) are connected with an oil tank of a pump source, the first pressure sensor (6) is connected with an electric control system, the first pressure sensor (6) is connected with the port c of the second two-way valve (5), the first pressure sensor (6) is used for monitoring outlet pressure of the pump source, and the port b of the second two-way valve (5) is connected with an oil inlet of the pump source.
2. The pump source explosion prevention system for hydraulic piling of claim 1, further comprising: and the port c of the second two-way valve (5) is connected with a rodless cavity (11) of the hydraulic cylinder, and a rod cavity (12) of the hydraulic cylinder is connected with a pump source.
3. The pump source explosion prevention system for hydraulic piling of claim 2, wherein: a first high-pressure hose (7) is connected between the c port of the second two-way valve (5) and a rodless cavity (11) of the hydraulic cylinder, and a second high-pressure hose (8) is connected between the pump source and a rod cavity (12) of the hydraulic cylinder.
4. The pump source explosion prevention system for hydraulic piling of claim 3, wherein: a first explosion-proof valve (9) is arranged between the first high-pressure hose (7) and a rodless cavity (11) of the hydraulic cylinder, and a second explosion-proof valve (10) is arranged between the second high-pressure hose (8) and a rod cavity (12) of the hydraulic cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922180547.5U CN211059121U (en) | 2019-12-06 | 2019-12-06 | Pump source explosion-proof system for hydraulic piling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922180547.5U CN211059121U (en) | 2019-12-06 | 2019-12-06 | Pump source explosion-proof system for hydraulic piling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211059121U true CN211059121U (en) | 2020-07-21 |
Family
ID=71590155
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922180547.5U Active CN211059121U (en) | 2019-12-06 | 2019-12-06 | Pump source explosion-proof system for hydraulic piling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211059121U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113251012A (en) * | 2021-06-04 | 2021-08-13 | 萨驰智能装备股份有限公司 | Explosion-proof hydraulic system and tire vulcanizer |
-
2019
- 2019-12-06 CN CN201922180547.5U patent/CN211059121U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113251012A (en) * | 2021-06-04 | 2021-08-13 | 萨驰智能装备股份有限公司 | Explosion-proof hydraulic system and tire vulcanizer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103089757B (en) | Closed hydraulic loop hot oil displacement system and concrete pumping device | |
| CN105257889A (en) | Electro-hydraulic driving system for sluice valve and sluice valve | |
| CN104487716B (en) | Hydraulic system for construction machinery | |
| CN103680829A (en) | Vacuum oil filling and detecting system for transformer | |
| CN211059121U (en) | Pump source explosion-proof system for hydraulic piling | |
| CN103671364B (en) | Electrohydraulic control system is turned to for remote control loader | |
| CN109058187B (en) | Unloading buffer hydraulic system | |
| CN108331791A (en) | A kind of hydraulic system released without decompression valve type fork-lift truck stopping brake | |
| CN110950244A (en) | Hydraulic control system of servo oil cylinder | |
| CN111846716A (en) | Control method of push shovel of kitchen garbage truck during garbage compression | |
| CN201650709U (en) | Hydraulic control valve | |
| CN103321975B (en) | A kind of low-high pressure soft start hydraulic oil source system | |
| CN203779817U (en) | Energy accumulator automatic pressure relief system applied to injection molding machine control oil way | |
| CN202073955U (en) | Clutch system | |
| CN207961092U (en) | A kind of hydraulic system released without decompression valve type fork-lift truck stopping brake | |
| CN201678367U (en) | Electric power hydraulic grab bucket with control structure of electromagnetic cartridge valve | |
| CN104197080B (en) | Hydraulic control system for quick opening and closing of valve | |
| CN202441663U (en) | Concrete pump hydraulic device capable of automatically switching high and low pressure and processing flow difference | |
| CN203223200U (en) | Steel wire blowout preventer switch pump for oil field well testing | |
| CN105675219A (en) | Ship pipeline pressure test system | |
| CN114017528A (en) | Control system and control method for nitrogen type water hammer pressure relief valve | |
| CN107401537A (en) | A kind of dead electricity closes valve hydraulic station | |
| CN203248450U (en) | Oil cylinder overload and failure detection and protection system and oil cylinder with same | |
| CN213331746U (en) | High-pressure hydraulic workstation | |
| US5804787A (en) | Gas circuit breaker and liquid pressure-driving system to be used therefor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |