CN204436906U - A kind of hydraulic system - Google Patents
A kind of hydraulic system Download PDFInfo
- Publication number
- CN204436906U CN204436906U CN201520070106.9U CN201520070106U CN204436906U CN 204436906 U CN204436906 U CN 204436906U CN 201520070106 U CN201520070106 U CN 201520070106U CN 204436906 U CN204436906 U CN 204436906U
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- Prior art keywords
- valve
- oil circuit
- hydraulic
- hydraulic system
- press
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- Expired - Fee Related
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Abstract
The utility model relates to trunnion shaft press frock technical field of hydraulic pressure, particularly relates to a kind of trunnion shaft press frock hydraulic system.Current trunnion shaft press frock mostly is hydraulic tool.Frock needs press-fit a little more, and have ordinal relation between press-fiting a little.In current application, each press-fits and a little all adopts a road hydraulic oil, and no step action does not need to be detected by sensor, and a signal is sent to PLC.PLC is according to process, and hydraulic control system respectively walks action.A kind of hydraulic system, this hydraulic system comprises oil circuit, be arranged on the solenoid directional control valve on oil circuit, throttle valve, electromagnetic relief valve, large tank, pressure relay, sequence valve and small oil tank, it is characterized in that: described solenoid directional control valve is arranged in in-line import one section, after solenoid directional control valve, be provided with throttle valve, be provided with electromagnetic relief valve between throttle valve and oil circuit end, wherein, end one tunnel of oil circuit connects large tank, and another road is connected with small oil tank.
Description
Technical field
The utility model relates to trunnion shaft press frock technical field of hydraulic pressure, particularly relates to a kind of trunnion shaft press frock hydraulic system.
Background technique
Current trunnion shaft press frock mostly is hydraulic tool.Frock needs press-fit a little more, and have ordinal relation between press-fiting a little.In current application, each press-fits and a little all adopts a road hydraulic oil, and no step action does not need to be detected by sensor, and a signal is sent to PLC.PLC is according to process, and hydraulic control system respectively walks action.
Model utility content
This hydraulic system, has two of sequentially-operating groups of hydraulic circuits to merge into a road by sequence valve by adjacent.By common solenoid directional control valve, relief valve, pressure relay controls, and system can be made to reduce half oil circuit.
A kind of hydraulic system, this hydraulic system comprises oil circuit, be arranged on the solenoid directional control valve on oil circuit, throttle valve, electromagnetic relief valve, large tank, pressure relay, sequence valve and small oil tank, it is characterized in that: described solenoid directional control valve is arranged in in-line import one section, after solenoid directional control valve, be provided with throttle valve, be provided with electromagnetic relief valve between throttle valve and oil circuit end, wherein, end one tunnel of oil circuit connects large tank, and another road is connected with small oil tank.
Preferably, described large tank place is provided with pressure relay.
Preferably, described small oil tank place is provided with sequence valve.
Accompanying drawing explanation
Fig. 1 is the structural representation of bowing of the utility model hydraulic system;
Wherein, each system unit title and mark as follows:
Solenoid directional control valve 1, throttle valve 2, electromagnetic relief valve 3, large tank 4, pressure relay 5, sequence valve 6 and small oil tank 7.
Embodiment
In order to enable above-mentioned purpose of the present utility model, feature and advantage become apparent more, are described in detail embodiment of the present utility model below in conjunction with accompanying drawing.
With reference to Fig. 1, a kind of hydraulic system, this hydraulic system comprises oil circuit, be arranged on the solenoid directional control valve 1 on oil circuit, throttle valve 2, electromagnetic relief valve 3, large tank 4, pressure relay 5, sequence valve 6 and small oil tank 7, it is characterized in that: described solenoid directional control valve 1 is arranged in in-line import one section, throttle valve 2 is provided with after solenoid directional control valve 1, electromagnetic relief valve 3 is provided with between throttle valve 2 and oil circuit end, wherein, end one tunnel of oil circuit connects large tank 4, and another road is connected with small oil tank 7.
With reference to Fig. 1, after large tank 4 puts in place, oil circuit pressure rises.After oil circuit pressure reaches the setting pressure of sequence valve 6, sequence valve 6 is opened.Small oil tank 7 starts action, and after small oil tank 7 puts in place, oil circuit pressure continues to rise.After oil circuit pressure reaches electromagnetic relief valve 3 setting pressure, electromagnetic relief valve 3 starts overflow, makes system pressure maintain setup pressure value.Keep constant pressure compaction workpiece.After equipment starts to press-fit, electromagnetic relief valve 3 is energized off-load.Oil cylinder loses pressure, press-fits in engineering, automatic calibration position to avoid affecting workpiece.After workpiece has press-fited, solenoid valve 1 is switched to DT2 direction, and large tank 1 and small oil tank 7 are return.
During hydraulic tool work, first reversing solenoid valve 1 is opened, and large tank 4 is started working.After large tank 4 work puts in place, pressure starts to rise.After pressure reaches sequence valve 6 setting pressure, sequence valve 6 is opened, and now, small oil tank 7 starts action, after small oil tank 7 puts in place.Oil circuit pressure continues to rise, and after pressure reaches pressure needed for work, pressure relay 5 feedback signal, reversing solenoid valve 1 cuts out.After reversing solenoid valve 1 cuts out, the active force as oil cylinder reverse side is excessive, and oil cylinder retreats, and oil circuit pressure rises.After pressure reaches electromagnetic relief valve 3 setting pressure, electromagnetic relief valve 3 is opened, and lays down excess pressure, protection hydraulic system.When stressed two lateral balances, electromagnetic relief valve 3 off-load, oil cylinder is in pressure-less state, to avoid the automatic calibration affecting workpiece.
Claims (3)
1. a hydraulic system, this hydraulic system comprises oil circuit, be arranged on the solenoid directional control valve (1) on oil circuit, throttle valve (2), electromagnetic relief valve (3), large tank (4), pressure relay (5), sequence valve (6) and small oil tank (7), it is characterized in that: described solenoid directional control valve (1) is arranged in in-line import one section, throttle valve (2) is provided with after solenoid directional control valve (1), electromagnetic relief valve (3) is provided with between throttle valve (2) and oil circuit end, wherein, end one tunnel of oil circuit connects large tank (4), another road is connected with small oil tank (7).
2. a kind of hydraulic system according to claim 1, is characterized in that, described large tank (4) place is provided with pressure relay (5).
3. a kind of hydraulic system according to claim 1, is characterized in that, described small oil tank (7) place is provided with sequence valve (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520070106.9U CN204436906U (en) | 2015-01-30 | 2015-01-30 | A kind of hydraulic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520070106.9U CN204436906U (en) | 2015-01-30 | 2015-01-30 | A kind of hydraulic system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204436906U true CN204436906U (en) | 2015-07-01 |
Family
ID=53604779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520070106.9U Expired - Fee Related CN204436906U (en) | 2015-01-30 | 2015-01-30 | A kind of hydraulic system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204436906U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106337846A (en) * | 2016-10-12 | 2017-01-18 | 中南大学 | Piling machine pile clamping hydraulic system and control method capable of achieving sequential pile clamping and pile clamping sequence control valve |
| CN106930991A (en) * | 2017-03-20 | 2017-07-07 | 安徽机电职业技术学院 | Building-block machine Hydraulic Power Transmission System |
-
2015
- 2015-01-30 CN CN201520070106.9U patent/CN204436906U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106337846A (en) * | 2016-10-12 | 2017-01-18 | 中南大学 | Piling machine pile clamping hydraulic system and control method capable of achieving sequential pile clamping and pile clamping sequence control valve |
| CN106930991A (en) * | 2017-03-20 | 2017-07-07 | 安徽机电职业技术学院 | Building-block machine Hydraulic Power Transmission System |
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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: 20150701 Termination date: 20170130 |