CN219529429U - Hydraulic power device - Google Patents
Hydraulic power device Download PDFInfo
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- CN219529429U CN219529429U CN202320887450.1U CN202320887450U CN219529429U CN 219529429 U CN219529429 U CN 219529429U CN 202320887450 U CN202320887450 U CN 202320887450U CN 219529429 U CN219529429 U CN 219529429U
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Abstract
The utility model discloses a hydraulic power device, comprising: the device comprises a first motor pump set, a second motor pump set, a third motor pump set, a fourth motor pump set and a reversing mechanism; the first motor pump set, the second motor pump set, the third motor pump set and the fourth motor pump set are all connected with the reversing mechanism; the reversing mechanism is connected with the executing mechanism a and the executing mechanism b. By improving the structure and the loop of the power device, the four motor pump sets can meet the working requirements of two actuating mechanisms, and compared with the prior art, the utility model can reduce 2 motor pump sets and obviously reduce the overall cost; in addition, after the number of the motor pump sets is reduced, the volume of the hydraulic station can be reduced, and the occupied space is reduced; the utilization rate of the motor pump set can be greatly improved.
Description
Technical Field
The utility model relates to the technical field of hydraulic systems, in particular to a hydraulic power device.
Background
In the existing hydraulic system, two motor pump sets are required to be configured as power sources when one actuating mechanism works normally, so that the actuating mechanism cannot work normally after one of the two motor pump sets fails, and in actual work, one motor pump set is generally configured as a standby. That is, in the prior art, one actuator needs to be provided with 3 motor pump sets. Then, there will be a plurality of actuating mechanisms in the hydraulic system, every actuating mechanism all need dispose 3 motor pump package, so, not only lead to the cost increase of hydraulic system adult, and under the condition of not breaking down, 3 rd motor pump package is in the state of shutting down basically, only when the motor pump package of work breaks down, can open, the component utilization ratio is low.
Disclosure of Invention
The utility model aims to solve the technical problems that: the technical problems of high cost and low component utilization rate caused by a large number of standby motor pump sets in the existing hydraulic system are solved. The utility model provides a hydraulic power device, which can realize that four motor pump sets are mutually standby, and the standby motor pump sets do not need to be additionally prepared, thereby being beneficial to saving the cost and improving the utilization rate of elements.
The technical scheme adopted for solving the technical problems is as follows: a hydraulic power plant, comprising: the device comprises a first motor pump set, a second motor pump set, a third motor pump set, a fourth motor pump set and a reversing mechanism; the first motor pump set, the second motor pump set, the third motor pump set and the fourth motor pump set are all connected with the reversing mechanism; the reversing mechanism is connected with the executing mechanism a and the executing mechanism b.
Further, the reversing mechanism includes: the first motor pump set is connected with the first electromagnetic directional valve, and the first electromagnetic directional valve is connected with the executing mechanism a and the executing mechanism b; the second motor pump set is connected with the second electromagnetic directional valve, and the second electromagnetic directional valve is connected with the executing mechanism a and the executing mechanism b; the third motor pump set is connected with the third electromagnetic directional valve, and the third electromagnetic directional valve is connected with the executing mechanism a and the executing mechanism b; the fourth motor pump group is connected with the fourth electromagnetic directional valve, and the fourth electromagnetic directional valve is connected with the executing mechanism a and the executing mechanism b.
Further, the method further comprises the following steps: the oil inlet of the first check valve is connected with an A port of the first electromagnetic directional valve, the oil inlet of the second check valve is connected with a B port of the first electromagnetic directional valve, the oil outlet of the first check valve is connected with the actuating mechanism a, and the oil outlet of the second check valve is connected with the actuating mechanism B.
Further, the method further comprises the following steps: the oil inlet of the third one-way valve is connected with an A port of the second electromagnetic directional valve, the oil inlet of the fourth one-way valve is connected with a B port of the second electromagnetic directional valve, the oil outlet of the third one-way valve is connected with the actuating mechanism a, and the oil outlet of the fourth one-way valve is connected with the actuating mechanism B.
Further, the method further comprises the following steps: the oil inlet of the fifth one-way valve is connected with the A port of the third electromagnetic directional valve, the oil inlet of the sixth one-way valve is connected with the B port of the third electromagnetic directional valve, the oil outlet of the fifth one-way valve is connected with the executing mechanism a, and the oil outlet of the sixth one-way valve is connected with the executing mechanism B.
Further, the method further comprises the following steps: the oil inlet of the seventh one-way valve is connected with the A port of the fourth electromagnetic directional valve, the oil inlet of the eighth one-way valve is connected with the B port of the fourth electromagnetic directional valve, the oil outlet of the seventh one-way valve is connected with the executing mechanism a, and the oil outlet of the eighth one-way valve is connected with the executing mechanism B.
Further, the method further comprises the following steps: and one end of the electromagnetic overflow valve is connected with the reversing mechanism, the other end of the electromagnetic overflow valve is connected with one end of the converging loop, and the other end of the converging loop is connected with the executing mechanism c.
Further, the method further comprises the following steps: the four ninth check valves, the first one the oil inlet of ninth check valve with first motor pump package is connected, the second one the oil inlet of ninth check valve with second motor pump package is connected, the third one the oil inlet of ninth check valve with third motor pump package is connected, the fourth one the oil inlet of ninth check valve with fourth motor pump package is connected, four the oil-out of ninth check valve all with the confluence return circuit is connected.
The utility model has the beneficial effects that through the improvement of the structure and the loop of the power device, the four motor pump sets can meet the working requirements of two actuating mechanisms, and compared with the prior art, the utility model can reduce 2 motor pump sets and obviously reduce the overall cost; in addition, after the number of the motor pump sets is reduced, the volume of the hydraulic station can be reduced, and the occupied space is reduced; the utilization rate of the motor pump set can be greatly improved.
Drawings
The utility model will be further described with reference to the drawings and examples.
Fig. 1 is a schematic view of the hydraulic power unit of the present utility model.
In the figure: 1. a first motor pump unit; 2. a second motor pump unit; 3. a third motor pump unit; 4. a fourth motor pump unit; 5. a reversing mechanism; 51. a first electromagnetic directional valve; 52. a second electromagnetic directional valve; 53. a third electromagnetic directional valve; 54. a fourth electromagnetic directional valve; 61. a first one-way valve; 62. a second one-way valve; 63. a third one-way valve; 64. a fourth one-way valve; 65. a fifth check valve; 66. a sixth one-way valve; 67. a seventh one-way valve; 68. an eighth check valve; 7. an electromagnetic spill valve; 8. a converging loop; 9. and a ninth one-way valve.
Detailed Description
The utility model will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic representations which merely illustrate the basic structure of the utility model and therefore show only the structures which are relevant to the utility model.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model. Furthermore, features defining "first", "second" may include one or more such features, either explicitly or implicitly. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
As shown in fig. 1, the hydraulic power unit of the present utility model includes: the motor-driven reversing valve comprises a first motor pump set 1, a second motor pump set 2, a third motor pump set 3, a fourth motor pump set 4 and a reversing mechanism 5, wherein the first motor pump set 1, the second motor pump set 2, the third motor pump set 3 and the fourth motor pump set 4 are all connected with the reversing mechanism 5, and the reversing mechanism 5 is connected with an executing mechanism a and an executing mechanism b. In other words, the first motor pump set 1, the second motor pump set 2, the third motor pump set 3 and the fourth motor pump set 4 are connected with the executing mechanism a and the executing mechanism b at the same time, the objects of oil supply of the first motor pump set 1, the second motor pump set 2, the third motor pump set 3 and the fourth motor pump set 4 can be switched through the reversing mechanism 5, for example, in a normal state, the first motor pump set 1 and the second motor pump set 2 supply oil to the executing mechanism a, the third motor pump set 3 and the fourth motor pump set 4 supply oil to the executing mechanism b, the executing mechanism a and the executing mechanism b are not started at the same time, and when the first motor pump set 1 fails, the third motor pump set 3 or the fourth motor pump set 4 can supply oil to the executing mechanism a through the reversing mechanism 5; in the event of a failure of the third motor-pump unit 3, the first motor-pump unit 1 or the second motor-pump unit 2 can be supplied with oil to the actuator b via the reversing device 5.
That is, the first motor pump set 1, the second motor pump set 2, the third motor pump set 3 and the fourth motor pump set 4 are mutually standby, and the working requirements of two execution mechanisms can be met through four motor pump sets (compared with the prior art, two motor pump sets are reduced), so that on one hand, the cost can be saved; on the other hand, the utilization rate of the motor pump group can be improved.
Specifically, the reversing mechanism 5 includes: the first electromagnetic directional valve 51, the second electromagnetic directional valve 52, the third electromagnetic directional valve 53 and the fourth electromagnetic directional valve 54, the first motor pump set 1 is connected with the first electromagnetic directional valve 51, the first electromagnetic directional valve 51 is connected with the actuator a and the actuator b, the second motor pump set 2 is connected with the second electromagnetic directional valve 52, the second electromagnetic directional valve 52 is connected with the actuator a and the actuator b, the third motor pump set 3 is connected with the third electromagnetic directional valve 53, the third electromagnetic directional valve 53 is connected with the actuator a and the actuator b, the fourth motor pump set 4 is connected with the fourth electromagnetic directional valve 54, and the fourth electromagnetic directional valve 54 is connected with the actuator a and the actuator b. In other words, each electromagnetic directional valve is connected with two execution mechanisms, and the electromagnetic directional valve can change the position of the oil outlet through electrification, so that the oil supply object of the motor pump set is changed. For example, the electromagnetic directional valve includes an oil inlet P, an oil return port T, an oil outlet a, and an oil outlet B, the oil outlet a is connected to the actuator a, the oil outlet B is connected to the actuator B, and when all of the first electromagnetic directional valve 51, the second electromagnetic directional valve 52, the third electromagnetic directional valve 53, and the fourth electromagnetic directional valve 54 are in the power-off state, the oil outlets a of the first electromagnetic directional valve 51, the second electromagnetic directional valve 52 are turned on; the oil outlets B of the third electromagnetic directional valve 53 and the fourth electromagnetic directional valve 54 are communicated. When the first electromagnetic directional valve 51, the second electromagnetic directional valve 52, the third electromagnetic directional valve 53, and the fourth electromagnetic directional valve 54 are energized, the oil outlet can be switched, changing the oil supply object.
For example, the utility model also includes: the first check valve 61, the second check valve 62, the third check valve 63, the fourth check valve 64, the fifth check valve 65, the sixth check valve 66, the seventh check valve 67 and the eighth check valve 68, the oil inlet of the first check valve 61 is connected with the A port of the first electromagnetic directional valve 51, the oil inlet of the second check valve 62 is connected with the B port of the first electromagnetic directional valve 51, the oil outlet of the first check valve 61 is connected with the actuating mechanism a, and the oil outlet of the second check valve 62 is connected with the actuating mechanism B. The oil inlet of the third one-way valve 63 is connected with the A port of the second electromagnetic directional valve 52, the oil inlet of the fourth one-way valve 64 is connected with the B port of the second electromagnetic directional valve 52, the oil outlet of the third one-way valve 63 is connected with the executing mechanism a, and the oil outlet of the fourth one-way valve 64 is connected with the executing mechanism B. The oil inlet of the fifth one-way valve 65 is connected with the A port of the third electromagnetic directional valve 53, the oil inlet of the sixth one-way valve 66 is connected with the B port of the third electromagnetic directional valve 53, the oil outlet of the fifth one-way valve 65 is connected with the executing mechanism a, and the oil outlet of the sixth one-way valve 66 is connected with the executing mechanism B. The oil inlet of the seventh one-way valve 67 is connected with the A port of the fourth electromagnetic directional valve 54, the oil inlet of the eighth one-way valve 68 is connected with the B port of the fourth electromagnetic directional valve 54, the oil outlet of the seventh one-way valve 67 is connected with the executing mechanism a, and the oil outlet of the eighth one-way valve 68 is connected with the executing mechanism B. The first check valve 61, the third check valve 63, the fifth check valve 65, and the seventh check valve 67 can prevent the oil of the actuator a from flowing back into the motor pump set, and the second check valve 62, the fourth check valve 64, the sixth check valve 66, and the eighth check valve 68 can organize the oil of the actuator b to flow back into the motor pump set.
The utility model also includes: an electromagnetic relief valve 7 and four ninth check valves 9, one end of the electromagnetic relief valve 7 is connected with the reversing mechanism 5, the other end of the electromagnetic relief valve 7 is connected with one end of the confluence loop 8, and the other end of the confluence loop 8 is connected with the actuating mechanism c. An oil inlet of a first ninth one-way valve 9 is connected with the first motor pump set 1, an oil inlet of a second ninth one-way valve 9 is connected with the second motor pump set 2, an oil inlet of a third one-way valve 9 is connected with the third motor pump set 3, an oil inlet of a fourth one-way valve 9 is connected with the fourth motor pump set 4, and oil outlets of the four ninth one-way valves 9 are all connected with the confluence loop 8. When the actuating mechanisms a and b do not work, the oil liquid of the first motor pump set 1, the second motor pump set 2, the third motor pump set 3 and the fourth motor pump set 4 can enter the confluence loop 8 through the four ninth one-way valves 9 to supply oil to the actuating mechanism c (the flow required by the actuating mechanism c is larger than that of the actuating mechanism a and b). The ninth one-way valve 9 can prevent the oil of the actuating mechanism c from flowing back to the motor pump set. The electromagnetic relief valve 7 sets the highest pressure of the system, and when the flow rate in the circuit is greater than the demand, the electromagnetic relief valve 7 is opened, and the surplus flow rate can be returned to the tank through the electromagnetic relief valve 7 to balance the flow rate of the system.
The working process of the utility model is that,
in the normal operation state, the first electromagnetic directional valve 51, the second electromagnetic directional valve 52, the third electromagnetic directional valve 53, and the fourth electromagnetic directional valve 54 are in the power-off state. Taking the working state of the actuator a as an example, at this time, the first motor pump set 1 and the second motor pump set 2 supply oil to the actuator a, if the first motor pump set 1 or the second motor pump set 2 fails, the third electromagnetic directional valve 53 is electrified to switch the oil outlet, so that the third motor pump set 3 can supply oil to the actuator a, or the fourth electromagnetic directional valve 54 is electrified to switch the oil outlet, so that the fourth motor pump set 4 can supply oil to the actuator a, thereby ensuring the normal operation of the actuator a.
In summary, according to the hydraulic power device disclosed by the utility model, through improvement of the structure and the loop of the power device, the four motor pump sets can meet the working requirements of two actuating mechanisms, and compared with the prior art, the hydraulic power device can reduce 2 motor pump sets, and the overall cost can be obviously reduced; in addition, after the number of the motor pump sets is reduced, the volume of the hydraulic station can be reduced, and the occupied space is reduced; the utilization rate of the motor pump set can be greatly improved; in addition, the utility model also provides a converging loop 8, which can meet the working requirements of a high-flow actuating mechanism.
With the above-described preferred embodiments according to the present utility model as an illustration, the above-described descriptions can be used by persons skilled in the relevant art to make various changes and modifications without departing from the scope of the technical idea of the present utility model. The technical scope of the present utility model is not limited to the description, but must be determined as the scope of the claims.
Claims (8)
1. A hydraulic power unit, comprising:
the device comprises a first motor pump set (1), a second motor pump set (2), a third motor pump set (3), a fourth motor pump set (4) and a reversing mechanism (5);
the first motor pump set (1), the second motor pump set (2), the third motor pump set (3) and the fourth motor pump set (4) are all connected with the reversing mechanism (5); the reversing mechanism (5) is connected with the executing mechanism a and the executing mechanism b.
2. A hydraulic power unit as claimed in claim 1, characterized in that the reversing mechanism (5) comprises: a first electromagnetic directional valve (51), a second electromagnetic directional valve (52), a third electromagnetic directional valve (53) and a fourth electromagnetic directional valve (54),
the first motor pump set (1) is connected with the first electromagnetic directional valve (51), and the first electromagnetic directional valve (51) is connected with the executing mechanism a and the executing mechanism b;
the second motor pump set (2) is connected with the second electromagnetic directional valve (52), and the second electromagnetic directional valve (52) is connected with the executing mechanism a and the executing mechanism b;
the third motor pump set (3) is connected with the third electromagnetic directional valve (53), and the third electromagnetic directional valve (53) is connected with the executing mechanism a and the executing mechanism b;
the fourth motor pump group (4) is connected with the fourth electromagnetic directional valve (54), and the fourth electromagnetic directional valve (54) is connected with the executing mechanism a and the executing mechanism b.
3. The hydraulic power unit as recited in claim 2 further comprising: the electromagnetic reversing valve comprises a first one-way valve (61) and a second one-way valve (62), wherein an oil inlet of the first one-way valve (61) is connected with an A port of the first electromagnetic reversing valve (51), an oil inlet of the second one-way valve (62) is connected with a B port of the first electromagnetic reversing valve (51), an oil outlet of the first one-way valve (61) is connected with an executing mechanism a, and an oil outlet of the second one-way valve (62) is connected with an executing mechanism B.
4. The hydraulic power unit as recited in claim 2 further comprising: the oil inlet of the third check valve (63) is connected with an A port of the second electromagnetic directional valve (52), the oil inlet of the fourth check valve (64) is connected with a B port of the second electromagnetic directional valve (52), the oil outlet of the third check valve (63) is connected with the actuating mechanism a, and the oil outlet of the fourth check valve (64) is connected with the actuating mechanism B.
5. The hydraulic power unit as recited in claim 2 further comprising: the oil inlet of the fifth one-way valve (65) is connected with an A port of the third electromagnetic directional valve (53), the oil inlet of the sixth one-way valve (66) is connected with a B port of the third electromagnetic directional valve (53), the oil outlet of the fifth one-way valve (65) is connected with the executing mechanism a, and the oil outlet of the sixth one-way valve (66) is connected with the executing mechanism B.
6. The hydraulic power unit as recited in claim 2 further comprising: the oil inlet of the seventh one-way valve (67) is connected with an A port of the fourth electromagnetic directional valve (54), the oil inlet of the eighth one-way valve (68) is connected with a B port of the fourth electromagnetic directional valve (54), the oil outlet of the seventh one-way valve (67) is connected with the executing mechanism a, and the oil outlet of the eighth one-way valve (68) is connected with the executing mechanism B.
7. The hydraulic power unit as recited in claim 2 further comprising: and one end of the electromagnetic overflow valve (7) is connected with the reversing mechanism (5), the other end of the electromagnetic overflow valve (7) is connected with one end of the confluence loop (8), and the other end of the confluence loop (8) is connected with the actuating mechanism c.
8. The hydraulic power unit of claim 7, further comprising: the four ninth check valves (9), the first one the oil inlet of ninth check valve (9) with first motor pump package (1) is connected, the second one the oil inlet of ninth check valve (9) with second motor pump package (2) is connected, the third one the oil inlet of ninth check valve (9) with third motor pump package (3) is connected, the fourth one the oil inlet of ninth check valve (9) with fourth motor pump package (4) is connected, four the oil-out of ninth check valve (9) all with confluence return circuit (8) are connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320887450.1U CN219529429U (en) | 2023-04-19 | 2023-04-19 | Hydraulic power device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320887450.1U CN219529429U (en) | 2023-04-19 | 2023-04-19 | Hydraulic power device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219529429U true CN219529429U (en) | 2023-08-15 |
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ID=87587480
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320887450.1U Active CN219529429U (en) | 2023-04-19 | 2023-04-19 | Hydraulic power device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219529429U (en) |
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2023
- 2023-04-19 CN CN202320887450.1U patent/CN219529429U/en active Active
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