CN207297497U - Numerical control bender drives oil pump device - Google Patents
Numerical control bender drives oil pump device Download PDFInfo
- Publication number
- CN207297497U CN207297497U CN201721198573.5U CN201721198573U CN207297497U CN 207297497 U CN207297497 U CN 207297497U CN 201721198573 U CN201721198573 U CN 201721198573U CN 207297497 U CN207297497 U CN 207297497U
- Authority
- CN
- China
- Prior art keywords
- oil pump
- overflow valve
- valve
- quantitative oil
- fuel tank
- 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.)
- Expired - Fee Related
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Abstract
The utility model provides a kind of numerical control bender driving oil pump device, including fuel tank, oil filter, quantitative oil pump, motor, inserted valve, overflow valve；The motor uses servomotor；The import of quantitative oil pump connects fuel tank by pipeline, and oil filter is equipped with the pipeline between quantitative oil pump and fuel tank；The outlet of quantitative oil pump connects inserted valve by pipeline；Motor connects and is used to drive quantitative oil pump；Overflow valve is connected with inserted valve；Overflow valve is used for initialization system maximum pressure；Inserted valve passes through refluxing opening T connection fuel tanks.The utility model changes the output flow of quantitative oil pump using servomotor speed change, to adapt to load the demand of various operating mode speed, reduces energy loss, improves the efficiency of system；Servo ratio overflow valve accordingly is eliminated, reduces manufacture cost.
Description
Technical field
Numerical control bending machine hydraulic power system is the utility model is related to, especially a kind of numerical control bender driving oil pump dress
Put.
Background technology
General numerical control bending machine hydraulic power system is all to drive constant displacement pump using the asynchronous machine of common constant rotational speed
（Principle is referring to Fig. 1）, by fuel tank 1, oil filter 2, quantitative oil pump 3, common electric machine 4, inserted valve 5, common overflow valve 6, servo-ratio
Example overflow valve 7（6 and No. 7 valves control the switch of No. 5 inserted valves, and pressure is established for system）Composition.After motor 4 starts, oil is driven
Pump 3 rotates, 3 oil extraction of oil pump, and since overflow valve 6 is used as safety valve at this time, its pressore setting is system maximum pressure, no
Variation can arbitrarily be adjusted.So system pressure just needs to be adjusted by another servo ratio overflow valve 7, servo ratio overflow valve letter
Number again controlled by computer.Due to 4 invariablenes turning speed of motor, therefore oil pump output flow is constant.It is but each in the whole bending cycle
Action, as under fast, it is slow under, pressurize and backhaul, or even requirement of the holding state to flow be all different.All unnecessary flows just exist
Setting pressure at that time flows down oil return box.Required action is slower, flows back to that the oil mass of fuel tank is more, the energy of waste is just more.Together
Sample, the pressure of setting is bigger, and the waste for flowing back to fuel tank is just bigger.The energy wasted is all changed into thermal energy, and oil temperature is improved.Whole
In a bending cycle, the oil mass needed for pressurize is very low, about 6% not over oil pump flow, that oil pump more than 94%
Flow just flows down oil return box in dwell pressure.Bending pressure is bigger, and the dwell time is longer, and the energy of waste is just more.
The content of the invention
For the deficiencies in the prior art, the utility model provides a kind of numerical control bender driving oil pump device, energy
Energy loss is enough reduced, also just reduces energy consumption relatively, reduces the use cost of user.The skill that the utility model uses
Art scheme is：
A kind of numerical control bender drives oil pump device, including fuel tank, oil filter, quantitative oil pump, motor, inserted valve, overflow
Valve；The motor uses servomotor；
The import of quantitative oil pump connects fuel tank by pipeline, and oil strain is equipped with the pipeline between quantitative oil pump and fuel tank
Device；
The outlet of quantitative oil pump connects inserted valve by pipeline；Motor connects and is used to drive quantitative oil pump；On inserted valve
It is connected with overflow valve；Overflow valve is used for initialization system maximum pressure；
Inserted valve passes through refluxing opening T connection fuel tanks.
Further, the overflow valve uses common overflow valve, rather than servo ratio overflow valve.
The advantages of the utility model：
1）Reduce energy loss, improve the efficiency of system, also just reduce energy consumption relatively, reduce user's
Use cost.
2）Servo ratio overflow valve accordingly is eliminated, reduces manufacture cost.
Brief description of the drawings
Fig. 1 is the structure composition schematic diagram of the prior art.
Fig. 2 is the principle schematic diagram of the utility model.
Fig. 3 a are the energy expenditure schematic diagram of the prior art.
Fig. 3 b are the energy-saving principle schematic diagram of the utility model.
Embodiment
With reference to specific drawings and examples, the utility model is described in further detail.
As shown in Fig. 2, the utility model proposes numerical control bender drive oil pump device, it is including fuel tank 1, oil filter 2, fixed
Dispensing pump 3, motor 4, inserted valve 5, overflow valve 6；Wherein overflow valve 6 uses common overflow valve, is not servo ratio overflow valve；Electricity
Machine 4 uses servomotor；
The import of quantitative oil pump 3 connects fuel tank 1 by pipeline, and filter is equipped with the pipeline between quantitative oil pump 3 and fuel tank 1
Oily device 2；
The outlet of quantitative oil pump 3 connects inserted valve 5 by pipeline；Motor 4 connects and for driving quantitative oil pump 3；Inserting
Overflow valve 6 is connected with valve 5；Overflow valve 6 is used for initialization system maximum pressure；
Inserted valve 5 passes through refluxing opening T connections fuel tank 1；
The utility model changes the output flow of quantitative oil pump 3 using servomotor speed change, to adapt to load various works
The demand of condition speed, reduces energy loss, improves the efficiency of system, also just reduces energy consumption relatively, reduces use
The use cost at family.Due to accordingly eliminating servo ratio overflow valve 7, manufacture cost is reduced.
The utility model and the energy saving contrast of the prior art are as best shown in figures 3 a and 3b；The utility model avoids energy wave
Take.
Claims (2)
1. a kind of numerical control bender drives oil pump device, it is characterised in that including fuel tank (1), oil filter (2), quantitative oil pump
(3), motor (4), inserted valve (5), overflow valve (6)；Motor (4) uses servomotor；
The import of quantitative oil pump (3) connects fuel tank (1) by pipeline, is set on the pipeline between quantitative oil pump (3) and fuel tank (1)
There is oil filter (2)；
The outlet of quantitative oil pump (3) connects inserted valve (5) by pipeline；Motor (4) connects and for driving quantitative oil pump (3)；
Overflow valve (6) is connected with inserted valve (5)；Overflow valve (6) is used for initialization system maximum pressure；
Inserted valve (5) passes through refluxing opening T connection fuel tanks (1).
2. numerical control bender as claimed in claim 1 drives oil pump device, it is characterised in that
Overflow valve (6) uses common overflow valve, rather than servo ratio overflow valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721198573.5U CN207297497U (en) | 2017-09-19 | 2017-09-19 | Numerical control bender drives oil pump device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721198573.5U CN207297497U (en) | 2017-09-19 | 2017-09-19 | Numerical control bender drives oil pump device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207297497U true CN207297497U (en) | 2018-05-01 |
Family
ID=62442638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721198573.5U Expired - Fee Related CN207297497U (en) | 2017-09-19 | 2017-09-19 | Numerical control bender drives oil pump device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207297497U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110701120A (en) * | 2019-09-25 | 2020-01-17 | 中船重型装备有限公司 | Screw machine driving double-speed motor system and control method thereof |
-
2017
- 2017-09-19 CN CN201721198573.5U patent/CN207297497U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110701120A (en) * | 2019-09-25 | 2020-01-17 | 中船重型装备有限公司 | Screw machine driving double-speed motor system and control method thereof |
| CN110701120B (en) * | 2019-09-25 | 2023-08-08 | 中船重型装备有限公司 | Screw machine driven double-speed motor system and control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180501 Termination date: 20200919 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |