CN203835820U - Energy-saving type hydraulic system for forging manipulator - Google Patents
Energy-saving type hydraulic system for forging manipulator Download PDFInfo
- Publication number
- CN203835820U CN203835820U CN201420118038.4U CN201420118038U CN203835820U CN 203835820 U CN203835820 U CN 203835820U CN 201420118038 U CN201420118038 U CN 201420118038U CN 203835820 U CN203835820 U CN 203835820U
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- Prior art keywords
- directional control
- control valve
- multiple directional
- energy
- valve
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Abstract
The utility model discloses an energy-saving type hydraulic system for a forging manipulator. The energy-saving type hydraulic system comprises directional control valves and an electromagnetic relief valve connected between an outlet of a main oil pump and an oil tank. The directional control valves comprise the middle-position O-type functional three-position four-way electro-hydraulic directional control valve, the first three-position six-way multiple directional control valve and the second three-position six-way multiple directional control valve, the first three-position six-way multiple directional control valve is connected with the second three-position six-way multiple directional control valve, and a middle-position oil return port of the second three-position six-way multiple directional control valve is closed. The energy-saving type hydraulic system further comprises an energy accumulator, the energy accumulator is connected with an oil inlet of the first three-position six-way multiple directional control valve, a proximity switch is arranged on the top of the energy accumulator, and the proximity switch controls the electromagnetic relief valve to be opened for unloading when a piston in the energy accumulator ascends to the top. Due to the facts that all the directional control valves are changed to have the middle-position O-type function, the middle-position oil return port of the second three-position six-way multiple directional control valve is closed, and the energy accumulator is connected with the oil inlet of the first three-position six-way multiple directional control valve, the energy-saving type hydraulic system has the advantages that system heating is avoided, and the configuration capacity of a hydraulic pump is greatly reduced.
Description
Technical field
The utility model relates to manipulator for forging technical field, relates in particular to a kind of manipulator for forging energy-saving hydraulic system.
Background technique
Figure mono-is conventional forging operation machine hydraulic system (taking three loops as example), and all there is a selector valve control action in each loop.When selector valve is during in meta, hydraulic oil is directly by pipeline oil sump tank.
This system has following two shortcomings in configuration:
1, in system, cart walking mechanism action is comparatively frequent, fastening device and elevator mechanism are intermittent work, but its oil cylinder internal diameter is larger, and when action, oil consumption is higher, therefore for the several actions of guarantee can be carried out simultaneously, need main oil pump and the motor of configuration larger capacity, or configure respectively oil pump for different mechanisms, it is complicated that its system becomes, and Economy is not ideal enough.
2,, in the time that all actuators are failure to actuate, hydraulic oil is to get back to fuel tank by the return opening of selector valve meta and return line.Because system pipeline is longer, selector valve latus rectum is also limited, and therefore equipment works long hours and has obvious heating, also needs to configure cooler in system, and this part energy belongs to unreasonable consumption.
Model utility content
The utility model is mainly to solve existing technical problem in prior art, thereby a kind of manipulator for forging energy-saving hydraulic system of avoiding system heating and significantly reducing the configuration capacity of oil hydraulic pump is provided.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals:
Manipulator for forging of the present utility model energy-saving hydraulic system, comprise selector valve, and be connected to the electromagnetic relief valve between main oil pump outlet and fuel tank, described selector valve comprises the 3-position 4-way electro-hydraulic reversing valve and interconnective first of meta " O " type function, the two or three six logical multiple directional control valve, the meta return opening sealing of described the two or three six logical multiple directional control valve, and also comprise an accumulator, described accumulator is connected with the filler opening of described the one or three six logical multiple directional control valve, described accumulator top is provided with an approach switch, in the time that the piston in described accumulator rises to top, described in described approach switch control, electromagnetic relief valve is opened off-load
Further, described 3-position 4-way electro-hydraulic reversing valve is connected with a hoist cylinder, and described first, second three six logical multiple directional control valves are connected with a large vehicle walking motor, clamping cylinder respectively.
Compared with prior art, the utility model has the advantage of: by all selector valves being all replaced by meta " O " type function, and by the meta return opening sealing of three six logical multiple directional control valves, be connected with accumulator simultaneously, there is the system of avoiding heating and significantly reduce oil hydraulic pump configuration capacity.
Brief description of the drawings
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation of manipulator for forging energy-saving hydraulic system in prior art;
Fig. 2 is the structural representation of manipulator for forging of the present utility model energy-saving hydraulic system.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in detail, thereby so that advantage of the present utility model and feature can be easier to be it will be appreciated by those skilled in the art that, protection domain of the present utility model is made to more explicit defining.
Consult shown in Fig. 2, manipulator for forging of the present utility model energy-saving hydraulic system, comprise selector valve, and be connected to main oil pump 3 and export the electromagnetic relief valve 4 between fuel tank, selector valve comprises the 3-position 4-way electro-hydraulic reversing valve 1 and interconnective first of meta " O " type function, the two or three six logical multiple directional control valve (2b, 2a), the meta return opening sealing of the two or three six logical multiple directional control valve 2a, and also comprise an accumulator 5, accumulator 5 is connected with the filler opening of the one or three six logical multiple directional control valve 2b, in the time that all actuators of manipulator for forging are failure to actuate, hydraulic oil can only enter accumulator 5, accumulator 5 tops are provided with an approach switch 6, in the time that the piston 7 in accumulator 5 rises to top, approach switch 6 is controlled electromagnetic relief valve 4 and is opened off-load, like this, during due to zero load, hydraulic oil needn't be got back to fuel tank by very long pipeline, system heating problem has obtained good solution.Meanwhile, piston accumulator 5 has served as auxiliary hydraulic pressure source, in the time that actuator moves, by oil hydraulic pump and accumulator 5 fuel feeding simultaneously, because most actuators of manipulator for forging are intermittent work, therefore can significantly reduce the configuration capacity of oil hydraulic pump.
In the present embodiment, 3-position 4-way electro-hydraulic reversing valve 1 is connected with a hoist cylinder 8, and first, second three six logical multiple directional control valves are connected 9 with a large vehicle walking motor 10, clamping cylinder respectively.
The utility model is by being all replaced by all selector valves meta " O " type function, and by the meta return opening sealing of three six logical multiple directional control valves, be connected with accumulator simultaneously, there is the system of avoiding heating and significantly reduce oil hydraulic pump configuration capacity.
Above, be only embodiment of the present utility model, but protection domain of the present utility model is not limited to this, any variation of expecting without creative work or replacement, within all should being encompassed in protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain that claims were limited.
Claims (2)
1. a manipulator for forging energy-saving hydraulic system, comprise selector valve, and be connected to the electromagnetic relief valve (4) between main oil pump (3) outlet and fuel tank, it is characterized in that: described selector valve comprises the 3-position 4-way electro-hydraulic reversing valve (1) and interconnective first of meta " O " type function, the two or three six logical multiple directional control valve (2b, 2a), the meta return opening sealing of described the two or three six logical multiple directional control valve (2a), and also comprise an accumulator (5), described accumulator (5) is connected with the filler opening of described the one or three six logical multiple directional control valve (2b), described accumulator (5) top is provided with an approach switch (6), in the time that the piston (7) in described accumulator (5) rises to top, described approach switch (6) is controlled described electromagnetic relief valve (4) and is opened off-load.
2. manipulator for forging according to claim 2 energy-saving hydraulic system, it is characterized in that: described 3-position 4-way electro-hydraulic reversing valve (1) is connected with a hoist cylinder (8) described first, second three six logical multiple directional control valves (2b, 2a) be connected with a large vehicle walking motor (10), clamping cylinder respectively (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420118038.4U CN203835820U (en) | 2014-03-14 | 2014-03-14 | Energy-saving type hydraulic system for forging manipulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420118038.4U CN203835820U (en) | 2014-03-14 | 2014-03-14 | Energy-saving type hydraulic system for forging manipulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203835820U true CN203835820U (en) | 2014-09-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420118038.4U Expired - Fee Related CN203835820U (en) | 2014-03-14 | 2014-03-14 | Energy-saving type hydraulic system for forging manipulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203835820U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104533890A (en) * | 2014-12-23 | 2015-04-22 | 南京航空航天大学 | Three-way loading hydraulic device |
| CN105971947A (en) * | 2016-07-18 | 2016-09-28 | 天津优瑞纳斯液压机械有限公司 | Hydraulic station structure for wind tunnel simulation experiments |
-
2014
- 2014-03-14 CN CN201420118038.4U patent/CN203835820U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104533890A (en) * | 2014-12-23 | 2015-04-22 | 南京航空航天大学 | Three-way loading hydraulic device |
| CN105971947A (en) * | 2016-07-18 | 2016-09-28 | 天津优瑞纳斯液压机械有限公司 | Hydraulic station structure for wind tunnel simulation experiments |
| CN105971947B (en) * | 2016-07-18 | 2018-03-16 | 天津优瑞纳斯液压机械有限公司 | A kind of wind tunnel simulation experiment hydraulic station structure |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140917 Termination date: 20200314 |