CN219865670U - Hydraulic pump station of two-way confluence - Google Patents
Hydraulic pump station of two-way confluence Download PDFInfo
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- CN219865670U CN219865670U CN202320905367.2U CN202320905367U CN219865670U CN 219865670 U CN219865670 U CN 219865670U CN 202320905367 U CN202320905367 U CN 202320905367U CN 219865670 U CN219865670 U CN 219865670U
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- 239000003921 oil Substances 0.000 claims abstract description 58
- 239000010705 motor oil Substances 0.000 claims abstract description 47
- 230000007246 mechanism Effects 0.000 claims abstract description 18
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 17
- 230000002457 bidirectional effect Effects 0.000 abstract description 3
- 229910000831 Steel Inorganic materials 0.000 description 7
- 239000010959 steel Substances 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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Abstract
The utility model relates to a bidirectional confluence hydraulic pump station, which comprises a hydraulic oil tank, an oil suction pipe and a motor oil pump unit; the motor oil pump unit is arranged on the oil suction pipe, and the hydraulic oil tank supplies oil through the motor oil pump unit; at least two groups of oil suction pipes are connected with the hydraulic oil tank; each group is provided with an independent motor oil pump unit, and the two groups of oil suction pipes are converged into a converging pipe after oil is supplied by the motor oil pump units; and a one-way valve is further arranged between each group of oil suction pipes and the converging pipe, and the one-way valve and the motor oil pump unit are connected with a control system of the hydraulic pump station and are used for supplying oil in one group or multiple groups according to the oil supply requirement of the executing mechanism. The motor oil pump unit is compact in structure and low in cost, and can be freely matched with motor oil pump units with different power according to the flow requirements of the actuating mechanism, so that the use cost is effectively reduced.
Description
Technical Field
The utility model relates to the technical field of hydraulic pump stations, in particular to a bidirectional converging hydraulic pump station.
Background
The hydraulic pump station is used as an integrated hydraulic element liquid supply device for providing pressure oil for hydraulic transmission and is widely applied to engineering machinery, machine tools, automobiles, mining equipment, aerospace and other industries. Even in the whole mechanical product, a hydraulic pump station can be used as long as the hydraulic transmission is realized. The overall structural dimensions, control modes, working efficiency, manufacturing process, economic cost and the like of the hydraulic transmission on the mechanical equipment can influence the structure and control technology of the adopted hydraulic pump station. When the mechanical equipment works, different working conditions and loads correspond to different flow rates, a variable pump or an electro-hydraulic proportional valve is generally adopted to adapt to various flow rates, and meanwhile, a plurality of hydraulic pump stations are adopted to adapt to uninterrupted work during shutdown or maintenance.
Defects and deficiencies of the prior art:
1. when the hydraulic pump works, two hydraulic pump stations (one for one) are needed, and a single hydraulic pump station needs to select a motor and a variable pump according to the system pressure and the maximum flow. The electric motor power is higher, the displacement of the variable pump is larger, the structural size is larger, and the control is more complex. For the working conditions with the variable flow but few types of the change, the hydraulic control performance of the hydraulic pump station is completely excessive, the hydraulic pump station has no good adaptability, and the hydraulic pump station is wasteful in use and preparation;
2. the high-power motor, the large-displacement variable pump and the electro-hydraulic proportional valve are generally high in cost, one of the two (one for each) hydraulic pump stations is increased in cost, larger installation space is needed, and the hydraulic pump station is not suitable for being installed in a narrow space;
disclosure of Invention
The utility model aims to overcome the defects and the shortcomings in the prior art, and provides the bidirectional confluence hydraulic pump station which is compact in structure, low in economic cost and capable of matching the working condition requirements of few flow variation types.
A hydraulic pump station with two-way confluence comprises a hydraulic oil tank, an oil suction pipe and a motor oil pump unit; the motor oil pump unit is arranged on the oil suction pipe, and the hydraulic oil tank supplies oil through the motor oil pump unit; at least two groups of oil suction pipes are connected with the hydraulic oil tank; each group is provided with an independent motor oil pump unit, and the two groups of oil suction pipes are converged into a converging pipe after oil is supplied by the motor oil pump units; and a one-way valve is further arranged between each group of oil suction pipes and the converging pipe, and the one-way valve and the motor oil pump unit are connected with a control system of the hydraulic pump station and are used for supplying oil in one group or multiple groups according to the oil supply requirement of the executing mechanism.
Further, the power of each group of motor oil pump units is the same or different.
Furthermore, when the power of the motor oil pump units is the same, each group of motor oil pump units can supply oil in a single group or multiple groups simultaneously according to the oil supply requirement of the executing mechanism;
further, when the power of the motor oil pump units is different, each group of motor oil pump units is used for supplying oil to each group of motor oil pump units according to the oil supply requirement of the executing mechanism.
Further, when the power of the motor oil pump units is different, the motor is a variable frequency motor or the one-way valve is an electro-hydraulic proportional valve, and each group of motor oil pump units can supply oil in a single group or multiple groups simultaneously according to the oil supply requirement of the executing mechanism by adjusting the rotating speed of the variable frequency motor or the flow of the electro-hydraulic proportional valve.
Preferably, the motor is a three-phase alternating current motor, and the oil pump is a gear pump.
Compared with the prior art, the utility model has the beneficial effects that:
(1) The utility model installs two groups of motor oil pump units on the upper part of the hydraulic oil tank in opposite directions, and the two groups of motor oil pump units are one by one and have independence, thus being capable of working simultaneously and intermittently. The hydraulic oil supply device has the function of converging, is completely suitable for oil supply of the actuating mechanism according to the flow requirement of hydraulic oil of the working surface actuating mechanism, and has the advantages of simple structure and flexible and adjustable function.
(2) The two groups of motor oil pump units are arranged on the same hydraulic pump station, so that the structure is compact, and the installation space occupied by the two hydraulic pump stations is smaller than that occupied by the two hydraulic pump stations.
(3) The two groups of motor oil pump units are arranged on the same hydraulic pump station, a motor with half power required by a control system can be selected, a gear pump with half maximum flow required by the control system can be selected, one hydraulic pump station realizes the functions of the two hydraulic pump stations, a high-power motor, a high-flow variable plunger pump or an electric proportional valve is avoided, and the cost is reduced comprehensively.
Drawings
Fig. 1 is a schematic diagram of the structure of the present utility model.
Fig. 2 is a top view of the present utility model.
Reference numerals: 1. the hydraulic oil tank, the three-phase alternating current motor, the gear pump, the one-way valve, the welding joint, the confluence steel pipe, the oil absorption steel pipe, the oil return steel pipe, the transition joint, the oil outlet steel pipe and the welding joint are respectively arranged in sequence.
Detailed Description
The utility model will now be described in further detail with reference to the accompanying drawings, without limiting the scope of the utility model.
The hydraulic pump station comprises a hydraulic oil tank 1, a three-phase alternating current motor 2, a gear pump 3, a one-way valve 4, a hydraulic steel pipe and a hydraulic joint.
Two three-phase alternating current motors 2 are arranged on the hydraulic oil tank 1, a gear pump 3 is connected to the outlet shaft direction of each motor, an oil suction port of the gear pump 3 sucks oil from the inside of the oil tank through an oil suction steel pipe 7, a one-way valve 4 is connected to the outlet of the gear pump 3, and hydraulic oil is converged into a converging steel pipe 6 after passing through the one-way valve 4 and finally reaches an actuating mechanism of a working face.
Embodiment one:
when the power of the motor oil pump units is the same, the flow requirements provided by the hydraulic pump station are two, and the two flow requirements correspond to the power of the single motor oil pump unit and the power of the two motor oil pump units respectively.
When the control system judges that the flow requirement of the actuating mechanism is maximum, the two alternating current motors work simultaneously to drive the gear pump 3 to operate, and high-pressure oil is provided. Since there may be a difference in rotation speed or the like of the motor or a difference in pressure of the oil pumps causes a difference in outlet pressure oil pressure of the two gear pumps 3, the check valve 4 must be provided so that the pressure oil of the oil pumps do not affect each other. The pressure oil is converged to the actuating mechanism after passing through the one-way valve 4.
When the control system judges that the flow of the actuating mechanism is reduced, one motor works, and the other motor is stopped, so that the hydraulic oil flow of the actuating mechanism is completely adapted, and the energy conservation and the efficiency improvement are achieved.
Embodiment two:
when the power of the motor oil pump units is different, the flow requirements provided by the hydraulic pump station are two, and the two flow requirements correspond to the power of the motor oil pump units.
Embodiment III:
when the power of the motor oil pump units is different, when the motor is a variable frequency motor or the one-way valve 4 is an electro-hydraulic proportional valve, by adjusting the rotating speed of the variable frequency motor or the flow of the electro-hydraulic proportional valve, each group of motor oil pump units can supply oil in a single group or multiple groups simultaneously according to the oil supply requirement of the executing mechanism. Therefore, the flow requirements provided by the hydraulic pump station are various.
Claims (6)
1. A hydraulic pump station with two-way confluence comprises a hydraulic oil tank, an oil suction pipe and a motor oil pump unit; the motor oil pump unit is arranged on the oil suction pipe, and the hydraulic oil tank supplies oil through the motor oil pump unit; the method is characterized in that: at least two groups of oil suction pipes are connected with the hydraulic oil tank; each group is provided with an independent motor oil pump unit, and the two groups of oil suction pipes are converged into a converging pipe after oil is supplied by the motor oil pump units; and a one-way valve is further arranged between each group of oil suction pipes and the converging pipe, and the one-way valve and the motor oil pump unit are connected with a control system of the hydraulic pump station and are used for supplying oil in one group or multiple groups according to the oil supply requirement of the executing mechanism.
2. The hydraulic pump station of claim 1, wherein: the power of each group of motor oil pump units is the same or different.
3. The hydraulic pump station of claim 2, wherein: when the power of the motor oil pump units is the same, each group of motor oil pump units can supply oil in a single group or multiple groups simultaneously according to the oil supply requirement of the executing mechanism.
4. The hydraulic pump station of claim 2, wherein: when the power of the motor oil pump units is different, each group of motor oil pump units is used for supplying oil to each group of motor oil pump units according to the oil supply requirement of the executing mechanism.
5. The hydraulic pump station of claim 2, wherein: when the power of the motor oil pump units is different, the motor is a variable frequency motor or the one-way valve is an electro-hydraulic proportional valve, and each group of motor oil pump units can supply oil in a single group or multiple groups simultaneously according to the oil supply requirement of the executing mechanism by adjusting the rotating speed of the variable frequency motor or the flow of the electro-hydraulic proportional valve.
6. The hydraulic pump station of claim 1, wherein: the motor is a three-phase alternating current motor, and the oil pump is a gear pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320905367.2U CN219865670U (en) | 2023-04-21 | 2023-04-21 | Hydraulic pump station of two-way confluence |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320905367.2U CN219865670U (en) | 2023-04-21 | 2023-04-21 | Hydraulic pump station of two-way confluence |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219865670U true CN219865670U (en) | 2023-10-20 |
Family
ID=88372107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320905367.2U Active CN219865670U (en) | 2023-04-21 | 2023-04-21 | Hydraulic pump station of two-way confluence |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219865670U (en) |
-
2023
- 2023-04-21 CN CN202320905367.2U patent/CN219865670U/en active Active
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