CN217713180U - Novel frequency conversion control hydraulic pump station - Google Patents
Novel frequency conversion control hydraulic pump station Download PDFInfo
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- CN217713180U CN217713180U CN202220282886.3U CN202220282886U CN217713180U CN 217713180 U CN217713180 U CN 217713180U CN 202220282886 U CN202220282886 U CN 202220282886U CN 217713180 U CN217713180 U CN 217713180U
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- 238000006243 chemical reaction Methods 0.000 title claims abstract description 8
- 238000013461 design Methods 0.000 claims abstract description 3
- 239000003921 oil Substances 0.000 claims description 24
- 239000010720 hydraulic oil Substances 0.000 claims description 9
- 238000012360 testing method Methods 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 6
- 238000010521 absorption reaction Methods 0.000 claims description 4
- 239000012530 fluid Substances 0.000 claims description 2
- 230000009471 action Effects 0.000 abstract description 2
- 230000004044 response Effects 0.000 abstract description 2
- 230000001105 regulatory effect Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model relates to a hydraulic power unit technical field specifically discloses a novel frequency conversion control hydraulic power unit, including electrical control device and with the hydraulic power unit that the electrical control device components of a whole that can function independently set up, hydraulic power unit includes the pump station base of bilayer structure design from top to bottom, wherein the lower floor middle part fixedly connected with biax of pump station base stretches the second grade motor, the utility model discloses the device action is accurate, the response is rapid, control is reliable, integrated than higher, and the hydraulic pump two can adjust the pressure to the Mpa, and the total flow of system can reach L/min after the double pump confluence. The system control mainly completes the start and stop of the hydraulic pump and the control of the hydraulic valve in a button mode. The starting of the hydraulic pump is controlled by the frequency converter, and the rotating speed of the hydraulic pump can be accurately controlled, so that the flow rate of the pump can be changed. The pressure, flow and temperature of the hydraulic system are measured by a special sensor and are displayed in real time by an instrument, so that the normal work of the system is ensured.
Description
Technical Field
The utility model belongs to the technical field of hydraulic power unit technique and specifically relates to a novel frequency conversion control hydraulic power unit is related to.
Background
In modern industry, hydraulic technology is more obvious in advanced equipment because of the characteristic of large power density and flexible and various control, which accounts for the increasing proportion. The working performance of the hydraulic pump station as a power source is particularly important. The hydraulic pump station is an independent hydraulic device, can provide hydraulic oil with controllable direction, pressure and flow according to the requirements of the main machine, and is suitable for various hydraulic machines with the main machine and the hydraulic device separable. The hydraulic pump station is formed by combining a motor-pump device, an integrated block, a control valve, an oil tank, an electrical control device and the like;
with the development of industrial technology, the working capacity of the main engine is greatly improved, and the requirements of the working condition performance on a power source-hydraulic pump station are also improved. The reason of the equipment structure configuration on the current market cannot adapt to the requirement of the diversity of the capabilities of working devices
The hydraulic pump station in the prior art has the following defects:
1. the output rotating speed is single: the power of a common motor is adopted, and the rotating speed is not adjustable;
2. the pressure output range is limited: the pressure output of the pump station is limited by the performance of the pressure regulating valve, the pressure can not be regulated in the whole pressure range, and the requirements of elements and devices with various pressure requirements can not be met;
3. the output flow change is small: under the power drive of a constant-speed motor, the output flow of the hydraulic station is constant when the hydraulic station is a constant displacement pump, the output flow variation range is small when the hydraulic station is a variable displacement pump, and elements and actuating mechanisms with various flow requirements are not matched;
4. the power loss is serious when the engine works under different working conditions, the efficiency is low, and the output power is single.
Therefore, a novel variable frequency control hydraulic pump station is provided.
Disclosure of Invention
The utility model aims at providing a novel frequency conversion control hydraulic pump station, which adopts a frequency conversion control hydraulic station, the power is composed of a double-shaft extension two-stage motor, a series hydraulic double pump and a mechanical power source gearbox, the motor can carry out stepless speed regulation, the speed regulation range of the whole pump station is wide, and the flow output in various ranges can be satisfied; the hydraulic double-pump combination is used integrally, so that a large-range adjustable pressure grade is provided for a user; the reasonable configuration of flow pressure and power is completed by matching with the operation of an electrical control system; and a power source gearbox is configured to realize multi-power output so as to solve the problems in the background technology.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a novel variable frequency control hydraulic power unit, include electrical control device and with the hydraulic power unit that the electrical control device components of a whole that can function independently set up, hydraulic power unit includes the pump station base of upper and lower bilayer structure design, wherein the second grade motor is stretched to the lower floor middle part fixedly connected with biax of pump station base, the right side transmission that the second grade motor was stretched to the biax is connected with the mechanical power source gearbox, the left side transmission that the second grade motor was stretched to the biax is connected with hydraulic pump one and hydraulic pump two, the split type fixedly connected with manifold block valves in upper strata right side of pump station base, the upside left side fixedly connected with hydraulic tank of pump station base, hydraulic tank's up end fixedly connected with oil return oil filter, electrical control equipment passes through the pipeline and is connected with the manifold block valves, hydraulic tank passes through pipeline and hydraulic pump one and hydraulic pump two, the manifold block valves passes through pipeline and each hydraulic fluid port intercommunication of oil tank is fixed.
Preferably, a temperature detector is fixed inside the hydraulic oil tank, and a pressure gauge and a high-pressure flow sensor are fixedly connected to the integrated block valve group.
Preferably, the rear end faces of the first hydraulic pump and the second hydraulic pump are fixedly communicated with oil suction oil filters.
Preferably, the rear end face of the electrical control device is fixedly connected with a control cabinet, and a frequency converter is fixedly installed inside the control cabinet.
Preferably, the first hydraulic pump and the second hydraulic pump are in a backward flow type oil absorption mode, oil absorption is sufficient, and the first hydraulic pump and the second hydraulic pump are fixedly connected with a pressure sensor.
Preferably, the double-shaft extension secondary motor adopts a double-shaft extension secondary motor, one end of the double-shaft extension secondary motor drives a series double pump to provide a power source for hydraulic element testing and a secondary loop, and the other end of the double-shaft extension secondary motor is provided with a mechanical power source gearbox to realize multi-power output.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses the device action is accurate, the response is rapid, control is reliable, integrated ratio is higher, and hydraulic pump two can the pressure regulating to Mpa, and the total flow of system can reach L/min after the double pump confluence. The system control mainly completes the start and stop of the hydraulic pump and the control of the hydraulic valve in a button mode. The starting of the hydraulic pump is controlled by the frequency converter, and the rotating speed of the hydraulic pump can be accurately controlled, so that the flow rate of the pump can be changed. The pressure, flow and temperature of the hydraulic system are measured by a special sensor and are displayed in real time by an instrument, so that the normal work of the system is ensured.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a view of the overall structure of the present invention;
fig. 2 is a hydraulic schematic diagram of the device of the present invention.
Description of reference numerals:
1. a double-shaft extension secondary motor; 2. a first hydraulic pump; 3. a second hydraulic pump; 4. a pump station base; 5. a mechanical power source gearbox; 6. a hydraulic oil tank; 7. an oil return filter; 8. an integrated block valve bank; 9. an electrical control device; 10. a pressure sensor; 11. a pressure gauge; 12. a high pressure flow sensor; 13. an oil suction filter; 14. a temperature detector.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1 to 2, the present invention provides a technical solution:
a novel frequency conversion control hydraulic pump station comprises an electrical control device 9 and a hydraulic pump station which is arranged separately from the electrical control device 9, wherein the hydraulic pump station comprises a pump station base 4 which is designed in an upper-lower double-layer structure, the middle part of the lower layer of the pump station base 4 is fixedly connected with a double-shaft extension secondary motor 1, the right side of the double-shaft extension secondary motor 1 is in transmission connection with a mechanical power source gearbox 5, the left side of the double-shaft extension secondary motor 1 is in transmission connection with a hydraulic pump I2 and a hydraulic pump II 3, the right side of the upper layer of the pump station base 4 is in split type and fixedly connected with an integrated block valve group 8, the left side of the upper side of the pump station base 4 is fixedly connected with a hydraulic oil tank 6, the upper end face of the hydraulic oil tank 6 is fixedly connected with an oil return filter 7, the electrical control device is connected with the integrated block valve group 8 through a pipeline, the hydraulic oil tank 6 is connected with a hydraulic pump I2 and a hydraulic pump II 3 through pipelines, the integrated block valve group 8 is fixedly communicated with oil ports of an oil tank through pipelines, a temperature detector 14 is fixedly arranged inside the hydraulic oil tank 6, a pressure gauge 11 and a high-pressure flow sensor 12 are fixedly connected to the integrated block valve group 8, oil suction and oil filtration devices 13 are fixedly communicated with the rear end faces of the first hydraulic pump 2 and the second hydraulic pump 3, a control cabinet is fixedly connected to the rear end face of the electric control device 9, a frequency converter is fixedly arranged inside the control cabinet, the first hydraulic pump 2 and the second hydraulic pump 3 are in a reverse flow type oil suction mode and fully absorb oil, a pressure sensor 10 is fixedly connected, the double-shaft extension secondary motor 1 adopts a double-shaft extension secondary motor 1, one end of the double-shaft extension secondary motor drives a series double pump through a shaft extension driving mode to provide a power source for a hydraulic element test and a secondary loop, and the other end of the double-shaft extension secondary motor is provided with a mechanical power source gearbox 5, and multi-power output is realized.
The working principle is as follows:
1. after the system is started, the rotating speed of the double-shaft extension secondary motor 1 is controlled by the frequency converter to stably operate, YV1 is electrified to work by the YV1 button on the integrated block valve group 8, the output pressure of the hydraulic pump II 32 is controlled to be 0-40Mpa by the pressure regulating valve below the YV1, and the unloading of the pump is controlled by the YV1 stop button.
2. After the system is started, the rotating speed of the double-shaft extension secondary motor 1 is controlled by the frequency converter to stably operate, YV2 is electrified to work by passing through a YV2 button on the integrated block valve group 8, the output pressure of a hydraulic pump 2 is controlled to be more than or equal to 2.5 MPa by a pressure regulating valve below the YV2, and the unloading of the pump is controlled by a YV2 stop button.
3. After the system is started, the rotating speed of the double-shaft extension secondary motor 1 is controlled by the frequency converter to stably operate, YV3 is electrified to work through a YV3 button on the integrated block valve group 8, the output pressure of a first hydraulic pump 2 is controlled to be not less than 0.5Mpa through a pressure regulating valve below the YV3, and the unloading of the pump is controlled by a YV3 stop button.
Through the operation, hydraulic power sources can be provided for the secondary loops with different pressure grades, and the actual required ideal state can be achieved by matching with the variable frequency control of the rotating speed of the double-shaft extension secondary motor 1; the hydraulic pressure testing device can also be used as a hydraulic testing stand and directly connected with various medium, low and high pressure hydraulic components for testing, pressure, flow and temperature sensors in a pump station directly measure, and a secondary instrument directly displays a testing result.
4. During many power take off, YV1, YV2, YV3 on the manifold block valves 8 stop the button control hydraulic pump 2, the unloading of hydraulic pump two 3, start the biax and stretch second grade motor 1, the biax stretches the second grade motor 1 axle and stretches other end drive mechanical power source gearbox 5, and the gearbox takes two outputs, but the different hydraulic pump work of turning round of lug connection to provide the power supply for a plurality of systems.
5. The precision of the oil return oil filter 7 arranged in the hydraulic oil tank 6 is 10um, so that the normal work of the system is ensured.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (6)
1. The utility model provides a novel frequency conversion control hydraulic power unit, includes electrical control device (9) and the hydraulic power unit who sets up with electrical control device (9) components of a whole that can function independently, its characterized in that: hydraulic power unit includes pump station base (4) of upper and lower bilayer structure design, and wherein the lower floor middle part fixedly connected with biax of pump station base (4) stretches second grade motor (1), the right side transmission that the biax stretched second grade motor (1) is connected with mechanical power source gearbox (5), the left side transmission that the biax stretched second grade motor (1) is connected with hydraulic pump (2) and hydraulic pump two (3), the split type fixedly connected with integrated package valves in upper right side (8) of pump station base (4), upside left side fixedly connected with hydraulic tank (6) of pump station base (4), the up end fixedly connected with oil filter (7) of hydraulic tank (6), electric control device (9) are connected with integrated package valves (8) through the pipeline, hydraulic tank (6) are through pipeline and hydraulic pump one (2) and hydraulic pump two (3), integrated package valves (8) are fixed through pipeline and each hydraulic fluid port intercommunication of oil tank.
2. The novel variable frequency control hydraulic pump station according to claim 1, characterized in that: the temperature detector (14) is fixed in the hydraulic oil tank (6), and the pressure gauge (11) and the high-pressure flow sensor (12) are fixedly connected to the integrated valve group (8).
3. The novel variable frequency control hydraulic pump station according to claim 1, characterized in that: and the rear end surfaces of the first hydraulic pump (2) and the second hydraulic pump (3) are fixedly communicated with an oil suction filter (13).
4. The novel variable frequency control hydraulic pump station according to claim 1, characterized in that: the rear end face of the electric control device (9) is fixedly connected with a control cabinet, and a frequency converter is fixedly arranged in the control cabinet.
5. The novel variable frequency control hydraulic pump station according to claim 1, characterized in that: the first hydraulic pump (2) and the second hydraulic pump (3) are in a backflow type oil absorption mode, oil absorption is sufficient, and the first hydraulic pump and the second hydraulic pump are fixedly connected with a pressure sensor (10).
6. The novel variable frequency control hydraulic pump station according to claim 1, characterized in that: the double-shaft extension secondary motor (1) adopts the double-shaft extension secondary motor (1), one end of the double-shaft extension drives the double pumps connected in series, a power source is provided for hydraulic element testing and a secondary loop, and the other end of the double-shaft extension drives the mechanical power source gearbox (5) to realize multi-power output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220282886.3U CN217713180U (en) | 2022-02-12 | 2022-02-12 | Novel frequency conversion control hydraulic pump station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220282886.3U CN217713180U (en) | 2022-02-12 | 2022-02-12 | Novel frequency conversion control hydraulic pump station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217713180U true CN217713180U (en) | 2022-11-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220282886.3U Expired - Fee Related CN217713180U (en) | 2022-02-12 | 2022-02-12 | Novel frequency conversion control hydraulic pump station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217713180U (en) |
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2022
- 2022-02-12 CN CN202220282886.3U patent/CN217713180U/en not_active Expired - Fee Related
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20221101 |
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| CF01 | Termination of patent right due to non-payment of annual fee |