CN105736489A - Movable-beam speed-regulation oil way structure of hydraulic pressing machine - Google Patents
Movable-beam speed-regulation oil way structure of hydraulic pressing machine Download PDFInfo
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- CN105736489A CN105736489A CN201410742000.9A CN201410742000A CN105736489A CN 105736489 A CN105736489 A CN 105736489A CN 201410742000 A CN201410742000 A CN 201410742000A CN 105736489 A CN105736489 A CN 105736489A
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Abstract
The invention discloses a movable-beam speed-regulation oil way structure of a hydraulic pressing machine. The structure comprises an oil supply valve, an oil discharge valve, a movable-beam rapid control oil way and a movable-beam slow control oil way, wherein the oil supply valve is connected to a pressure oil source; the oil discharge valve is connected to an oil tank of a hydraulic execution mechanism; the movable-beam rapid control oil way is connected to the oil supply valve, the oil discharge valve and an oil cylinder rod chamber of the hydraulic execution mechanism respectively; and the movable-beam slow control oil way is composed of at least two electromagnetic valves which are connected in parallel, a first in-parallel node of the vales is connected to the oil supply valve and the oil discharge valve, and the second in-parallel node of the vales is connected to the oil cylinder rod chamber of the hydraulic execution mechanism. The structure disclosed by the invention has the advantages that an online multi-stage regulation of movable beam motion can be carried out; the movable beam motion is smooth and gentle; reliability is high; controllability of the movable beam motion is increased; production and manufacture cost is low; a fault rate is low; and use and maintenance are convenient.
Description
Technical field
The invention belongs to technical field of hydraulic, be specifically related to a kind of dynamic beam governor oil line structure being mainly used in hydraulic press.
Background technology
As shown in Figure 1, the dynamic beam governor oil line structure of existing a kind of hydraulic press is mainly made up of delivery valve 1, draining valve 2, dynamic beam quick control oil circuit 3 and dynamic beam oil circuit control 4 at a slow speed, in order to drive hydraulic actuating mechanism 5 action of hydraulic press, its structure is: delivery valve 1 is connected with pressure oil-source 6；Draining valve 2 is connected with the fuel tank 51 of hydraulic actuating mechanism；Dynamic beam quick control oil circuit 3 is connected with the cylinder rod chamber 53 of delivery valve, draining valve and hydraulic actuating mechanism respectively；Dynamic beam oil circuit control 4 at a slow speed is connected with the cylinder rod chamber 53 of delivery valve, draining valve and hydraulic actuating mechanism respectively.Wherein, dynamic beam quick control oil circuit 3 is made up of a dynamic beam rapid movement inserted valve 31, and dynamic beam oil circuit control 4 at a slow speed is made up of dynamic beam descending at slow speed inserted valve 41 and dynamic beam rising inserted valve 42 at a slow speed.And, delivery valve 1, draining valve 2, dynamic beam rapid movement inserted valve 31 are electromagnetic pilot-operated inserted valve, and dynamic beam descending at slow speed inserted valve 41 and dynamic beam rising inserted valve 42 at a slow speed are common inserted valve, and on off state is not by On-line Control.The operation principle of this kind of dynamic beam governor oil line structure is: the dynamic beam 55 of hydraulic actuating mechanism is driven by cylinder piston rod 54, and its ascending motion is the control carrying out speed by controlling fuel delivery.When dynamic beam 55 rises, the delivery valve 1 in oil circuit is opened, draining valve 2 cuts out, and the pressure oil of pressure oil-source 6 enters in oil circuit.When dynamic beam 55 needs to do rapid increase action, dynamic beam rising inserted valve 42 at a slow speed in dynamic beam rapid movement inserted valve 31 and dynamic beam oil circuit control at a slow speed is opened simultaneously, then pressure oil controls at a slow speed to enter in a large number the cylinder rod chamber 53 of hydraulic actuating mechanism through dynamic beam quick control oil circuit and dynamic beam, makes cylinder piston rod 54 rapid increase drive dynamic beam 55 rapid increase.When dynamic beam 55 needs to do vertical motion at a slow speed, then close dynamic beam rapid movement inserted valve 31 and open dynamic beam rising inserted valve 42 at a slow speed, then pressure oil enters cylinder rod chamber 53 on a small quantity through dynamic beam oil circuit control at a slow speed, makes cylinder piston rod increase at a slow speed and drives dynamic beam to rise at a slow speed.Equally, the descending motion of dynamic beam is the control carrying out speed by controlling oil drain quantity.When dynamic beam declines, the draining valve in oil circuit opens and delivery valve cut out, and the pressure oil in cylinder rod chamber 53 enters the fuel tank 51 of hydraulic actuating mechanism through draining valve.When dynamic beam needs to do rapid decrease action, dynamic beam descending at slow speed inserted valve 41 in dynamic beam rapid movement inserted valve 31 and dynamic beam oil circuit control at a slow speed is opened simultaneously, then the pressure oil that during dynamic beam rapid decrease, cylinder rod chamber 53 is discharged in a large number is discharged through dynamic beam quick control oil circuit and dynamic beam oil circuit control at a slow speed；When dynamic beam needs to do descending at slow speed action, close dynamic beam rapid movement inserted valve 31 and open dynamic beam descending at slow speed inserted valve 41, then the pressure oil that during dynamic beam descending at slow speed, cylinder rod chamber is discharged on a small quantity is discharged through dynamic beam oil circuit control at a slow speed.Owing to the dynamic beam rate of climb and the decrease speed of this kind of oil circuit control structure have two common inserted valves to be controlled respectively, namely two-stage speed governing can only be realized at most, if the motion of dynamic beam from rapid movement be changed into microinching time, unexpected transformation due to speed, it is easy to whole hydraulic actuating mechanism is impacted.
Additionally, the dynamic beam governor oil line structure also having a kind of hydraulic press is to adopt the inserted valve of a two-position three way plug-in proportional servo valve and on-off action to realize the servo-controlled of dynamic beam.The use of proportional servo valve, although can realize the step-less adjustment of speed, makes beam motion more accurately soft.But, owing to proportional servo valve structure comparison is accurate, and easily break down and it needs to the electric control system of configuration higher performance, production and maintenance cost so will necessarily be significantly increased.
Summary of the invention
Present invention aims to the deficiencies in the prior art part, it is provided that a kind of dynamic beam governor oil line structure, it has multistep speed regulation ability, and with low cost, use and easy to maintenance simply.
For reaching above-mentioned purpose, the present invention adopts the following technical scheme that
The dynamic beam governor oil line structure of a kind of hydraulic press, including delivery valve, draining valve, dynamic beam quick control oil circuit and dynamic beam oil circuit control at a slow speed；Described delivery valve is connected with pressure oil-source；Described draining valve is connected with the fuel tank of hydraulic actuating mechanism；Described dynamic beam quick control oil circuit is connected with the cylinder rod chamber of described delivery valve, draining valve and hydraulic actuating mechanism respectively；Described dynamic beam oil circuit control at a slow speed is connected with the cylinder rod chamber of described delivery valve, draining valve and hydraulic actuating mechanism respectively；Described dynamic beam oil circuit control at a slow speed is composed in parallel by least two electromagnetic valve, and its first sys node is connected with described delivery valve and draining valve, and its second sys node is connected with the cylinder rod chamber of hydraulic actuating mechanism.
Preferred as one, have at least an electromagnetic valve to connect a flow control mechanism.
Preferred as another kind, the second sys node of described dynamic beam oil circuit control at a slow speed and a flow control mechanism are connected with the cylinder rod chamber of described hydraulic actuating mechanism after connecting again.Additionally, be connected with described delivery valve and draining valve again after the first sys node of described dynamic beam oil circuit control at a slow speed and flow control mechanism series connection.
Further, described flow control mechanism is throttle orifice or choke valve or flow control valve.
As preferably, described electromagnetic valve is board-like electromagnetic valve or plugged electric magnet valve.Further, described electromagnetic valve is two-position two-way solenoid valve or two-position three way magnetic valve or two-position four-way solenoid valve.
Selecting as one, described dynamic beam quick control oil circuit is made up of a dynamic beam rapid movement inserted valve.
As preferably, described dynamic beam rapid movement inserted valve, delivery valve and draining valve are electromagnetic pilot-operated inserted valve.
As preferably, described dynamic beam governor oil line structure is integrated oil path block structure, or Hydraulic Elements dispersed placement structure.
The present invention, by adopting said structure, can realize the online multistage regulatory function of dynamic beam motion, make beam stable movement soft, and reliability is high, improves the controllability of dynamic beam motion；And manufacturing cost is relatively low, failure rate is low, use and safeguard all relatively simple.
Accompanying drawing explanation
Fig. 1 is the dynamic beam governor oil line structure schematic diagram of existing a kind of hydraulic press.
Fig. 2 is the structural representation of the embodiment of the present invention 1.
Fig. 3 is the structural representation of the embodiment of the present invention 2.
In figure:
1 delivery valve；2 draining valves；3 dynamic beam quick control oil circuits；31 dynamic beam rapid movement inserted valves；4 dynamic beam oil circuit controls at a slow speed；41 dynamic beam descending at slow speed inserted valves；42 dynamic beams rise at a slow speed inserted valve；43 electromagnetic valves；44 flow control mechanisms；45 first sys nodes；46 second sys nodes；5 hydraulic actuating mechanisms；51 fuel tanks；52 oil cylinder rodless cavities；53 cylinder rod chambers；54 piston rods；55 dynamic beams；6 pressure oil-sources.
In conjunction with drawings and Examples, the present invention is described in further detail.
Detailed description of the invention
Embodiment 1
As in figure 2 it is shown, the dynamic beam governor oil line structure of a kind of hydraulic press described in the present embodiment, equally mainly it is made up of delivery valve 1, draining valve 2, dynamic beam quick control oil circuit 3 and dynamic beam oil circuit control 4 at a slow speed.
The structure of the delivery valve 1 of the present embodiment 1, draining valve 2 and dynamic beam quick control oil circuit 3 and connected mode be the same shown in Fig. 1, namely dynamic beam quick control oil circuit 3 is made up of a dynamic beam rapid movement inserted valve 31, and delivery valve 1, draining valve 2, dynamic beam rapid movement inserted valve 31 are electromagnetic pilot-operated inserted valve.It is different in that: dynamic beam oil circuit control at a slow speed includes several electromagnetic valves 43 (the present embodiment is two-position four-way solenoid valve) being connected in parallel, its first sys node 45 is connected with delivery valve 1 and draining valve 2 respectively, and the second sys node 46 is connected with the cylinder rod chamber 53 of hydraulic actuating mechanism.Additionally, have at least an electromagnetic valve 43 also to connect a flow control mechanism 44, but it not that each electromagnetic valve 43 must be connected a flow control mechanism.And this flow control mechanism 44 can be throttle orifice or choke valve or flow control valve.Further, when flow control mechanism is multiple, the plurality of flow control mechanism can centralized arrangement or be distributed across on hydraulic press.
The operation principle of the present embodiment is as follows:
When dynamic beam 55 need to do rapid increase action, delivery valve 1, dynamic beam rapid movement inserted valve 31 and all electromagnetic valves 43 need to be opened simultaneously and close draining valve 2, system pressure oil injects cylinder rod chamber 53 in a large number through dynamic beam quick control oil circuit 3 and dynamic beam oil circuit control 4 at a slow speed, making piston rod 54 fast upward motion and then drive dynamic beam 55 rapid increase, the hydraulic oil in rodless cavity 52 then enters in fuel tank 51.When dynamic beam 55 need to do vertical motion at a slow speed, then open delivery valve 1, close draining valve 2, move beam rapid movement inserted valve 31 and close section solenoid valve 43, then system pressure oil enters cylinder rod chamber on a small quantity through dynamic beam oil circuit control at a slow speed with controlled manner, thus controlling the rate of climb of brake beam.
When dynamic beam 55 need to do rapid decrease action, draining valve 2, dynamic beam rapid movement inserted valve 31 and all electromagnetic valves 43 need to be opened simultaneously and close delivery valve 1, dynamic beam relies on deadweight to realize rapid decrease, and the pressure oil in cylinder rod chamber 53 is discharged through dynamic beam quick motion control oil circuit and dynamic beam oil circuit control at a slow speed with larger flow；Hydraulic oil in rodless cavity 52 is then supplemented by fuel tank 51.When dynamic beam 55 need to do descending at slow speed action, then open draining valve 2, and close delivery valve 1, dynamic beam rapid movement inserted valve 31 and close section solenoid valve 43, it is achieved the oil extraction flow-control of pressure oil in cylinder rod chamber 53, thus controlling the decrease speed of brake beam.
First sys node of above-mentioned dynamic beam oil circuit control at a slow speed also can be connected with described delivery valve and draining valve with after a flow control mechanism series connection again, can further enhance flow-control equally.It should be noted that the electromagnetic valve of the present embodiment can also adopt two-position two-way solenoid valve or two-position three way magnetic valve to replace two-position four-way solenoid valve.Additionally, electromagnetic valve can adopt board-like electromagnetic valve, it would however also be possible to employ plugged electric magnet valve.Further, the oil channel structures described in the present embodiment, integrated oil path block structure can be adopted, it would however also be possible to employ Hydraulic Elements dispersed placement structure.
Embodiment 2
Dynamic beam governor oil line structure described in the present embodiment, being different in that with embodiment 1 and be only configured with a flow control mechanism 44, the second sys node of dynamic beam oil circuit control at a slow speed is connected with the cylinder rod chamber 53 of hydraulic actuating mechanism after connecting with this flow control mechanism 44 again.
The operation principle of the present embodiment, with embodiment 1, does not repeat them here.
Claims (10)
1. a dynamic beam governor oil line structure for hydraulic press, including delivery valve, draining valve, dynamic beam quick control oil circuit and dynamic beam oil circuit control at a slow speed；Described delivery valve is connected with pressure oil-source；Described draining valve is connected with the fuel tank of hydraulic actuating mechanism；Described dynamic beam quick control oil circuit is connected with the cylinder rod chamber of described delivery valve, draining valve and hydraulic actuating mechanism respectively；Described dynamic beam oil circuit control at a slow speed is connected with the cylinder rod chamber of described delivery valve, draining valve and hydraulic actuating mechanism respectively；It is characterized in that, described dynamic beam oil circuit control at a slow speed is composed in parallel by least two electromagnetic valve, and its first sys node is connected with described delivery valve and draining valve, and its second sys node is connected with the cylinder rod chamber of hydraulic actuating mechanism.
2. the dynamic beam governor oil line structure of a kind of hydraulic press according to claim 1, it is characterised in that have at least an electromagnetic valve to connect a flow control mechanism.
3. the dynamic beam governor oil line structure of a kind of hydraulic press according to claim 1, it is characterised in that the second sys node of described dynamic beam oil circuit control at a slow speed and a flow control mechanism are connected with the cylinder rod chamber of described hydraulic actuating mechanism after connecting again.
4. the dynamic beam governor oil line structure of a kind of hydraulic press according to claim 1, it is characterised in that the first sys node of described dynamic beam oil circuit control at a slow speed and a flow control mechanism are connected with described delivery valve and draining valve after connecting again.
5. the dynamic beam governor oil line structure of a kind of hydraulic press according to Claims 2 or 3 or 4, it is characterised in that described flow control mechanism is throttle orifice or choke valve or flow control valve.
6. the dynamic beam governor oil line structure of a kind of hydraulic press according to claim 1, it is characterised in that described electromagnetic valve is board-like electromagnetic valve or plugged electric magnet valve.
7. the dynamic beam governor oil line structure of a kind of hydraulic press according to claim 1 or 6, it is characterised in that described electromagnetic valve is two-position two-way solenoid valve or two-position three way magnetic valve or two-position four-way solenoid valve.
8. the dynamic beam governor oil line structure of a kind of hydraulic press according to claim 1, it is characterised in that described dynamic beam quick control oil circuit is made up of a dynamic beam rapid movement inserted valve.
9. the dynamic beam governor oil line structure of a kind of hydraulic press according to claim 8, it is characterised in that described dynamic beam rapid movement inserted valve, delivery valve and draining valve are electromagnetic pilot-operated inserted valve.
10. the dynamic beam governor oil line structure of a kind of hydraulic press according to claim 1, it is characterised in that described dynamic beam governor oil line structure is integrated oil path block structure, or Hydraulic Elements dispersed placement structure.
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| CN201410742000.9A CN105736489B (en) | 2014-12-08 | 2014-12-08 | A kind of dynamic beam speed governing oil channel structures of hydraulic press |
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| CN201410742000.9A CN105736489B (en) | 2014-12-08 | 2014-12-08 | A kind of dynamic beam speed governing oil channel structures of hydraulic press |
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| CN105736489B CN105736489B (en) | 2018-01-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107588050A (en) * | 2017-10-31 | 2018-01-16 | 三重机有限公司 | Keep valve, cylinder component, excavator hydraulic system and excavator |
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| SU1016214A1 (en) * | 1981-08-19 | 1983-05-07 | Волжское объединение по производству легковых автомобилей | Hydraulic press control system |
| US5865088A (en) * | 1995-07-25 | 1999-02-02 | Komatsu Ltd. | High-speed safety circuit for a hydraulic press |
| US6003429A (en) * | 1995-07-06 | 1999-12-21 | Komatsu Ltd. | High speed and high-load cylinder device and method for controlling the same |
| CN201833622U (en) * | 2010-08-09 | 2011-05-18 | 合肥锻压机床有限公司 | Hydraulic press with debugging function and hydraulic system thereof |
| CN202053557U (en) * | 2011-02-25 | 2011-11-30 | 合肥合锻机床股份有限公司 | Hydraulic system of small and medium size hydraulic press |
| CN203627355U (en) * | 2013-11-19 | 2014-06-04 | 广州市阿盖特科技有限公司 | Double-speed-valve control system capable of achieving forced high speed or forced low speed |
| CN204344551U (en) * | 2014-12-08 | 2015-05-20 | 佛山市恒力泰机械有限公司 | A kind of dynamic beam governor oil line structure of hydraulic press |
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2014
- 2014-12-08 CN CN201410742000.9A patent/CN105736489B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1016214A1 (en) * | 1981-08-19 | 1983-05-07 | Волжское объединение по производству легковых автомобилей | Hydraulic press control system |
| US6003429A (en) * | 1995-07-06 | 1999-12-21 | Komatsu Ltd. | High speed and high-load cylinder device and method for controlling the same |
| US5865088A (en) * | 1995-07-25 | 1999-02-02 | Komatsu Ltd. | High-speed safety circuit for a hydraulic press |
| CN201833622U (en) * | 2010-08-09 | 2011-05-18 | 合肥锻压机床有限公司 | Hydraulic press with debugging function and hydraulic system thereof |
| CN202053557U (en) * | 2011-02-25 | 2011-11-30 | 合肥合锻机床股份有限公司 | Hydraulic system of small and medium size hydraulic press |
| CN203627355U (en) * | 2013-11-19 | 2014-06-04 | 广州市阿盖特科技有限公司 | Double-speed-valve control system capable of achieving forced high speed or forced low speed |
| CN204344551U (en) * | 2014-12-08 | 2015-05-20 | 佛山市恒力泰机械有限公司 | A kind of dynamic beam governor oil line structure of hydraulic press |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107588050A (en) * | 2017-10-31 | 2018-01-16 | 三重机有限公司 | Keep valve, cylinder component, excavator hydraulic system and excavator |
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Application publication date: 20160706 Assignee: Keda Manufacturing Co., Ltd Assignor: FOSHAN HENGLITAI MACHINERY Co.,Ltd. Contract record no.: X2021440000046 Denomination of invention: An oil circuit structure of moving beam speed regulation for hydraulic press Granted publication date: 20180105 License type: Common License Record date: 20210204 Application publication date: 20160706 Assignee: FOSHAN DLT TECHNOLOGY Co.,Ltd. Assignor: FOSHAN HENGLITAI MACHINERY Co.,Ltd. Contract record no.: X2021440000047 Denomination of invention: An oil circuit structure of moving beam speed regulation for hydraulic press Granted publication date: 20180105 License type: Common License Record date: 20210204 |
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