CN203770284U - Lifting hydraulic system used for flat blank scarfing unit - Google Patents
Lifting hydraulic system used for flat blank scarfing unit Download PDFInfo
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- CN203770284U CN203770284U CN201420094633.9U CN201420094633U CN203770284U CN 203770284 U CN203770284 U CN 203770284U CN 201420094633 U CN201420094633 U CN 201420094633U CN 203770284 U CN203770284 U CN 203770284U
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Abstract
The utility model relates to a lifting hydraulic system used for a flat blank scarfing unit. The lifting hydraulic system comprises an electromagnetic directional valve, a one-way pressure reducing valve, a plug-in mounting overflow valve, a first plug-in mounting throttling valve, a second plug-in mounting throttling valve, a first hydraulic controlling one-way valve, a second hydraulic controlling one-way valve, a one-way valve, a hydraulic cylinder and a hydraulic manifold block. According to the utility model, the designing method of hydraulic controlling valves is adopted to enable the structure of the hydraulic system to be compact; a large number of plug-in valves adopted in the system circuit enable the through-current capability of the hydraulic system to be greater, the work pressure to be higher and the sealing property to be better, and to enable the hydraulic system to have the advantages of non-leaking, rapid responses, reliable actions and the like; the designing method of the hydraulic pressure differential circuit is adopted, so that the response speed of the system is increased and the energy consumption of the system is lowered, therefore, the lifting hydraulic system can be suitable for the high-strength continuous production mode of the unit.
Description
Technical field
The utility model relates to a kind of hydraulic system, particularly a kind of hydraulic system for lifting for slab flame cleaning unit.
Background technique
At present, in order to produce high-quality cold-rolled steel coils product, the surface quality of continuous casting being produced to slab has proposed more strict requirement, need to clear up slab upper surface defect, utilizes the gas cutting of hot flame and molten removing to act on steel billet surface defect burn off.Flame cleaning unit can be respectively the cooled off-line cleaning of the cleaning of continuous casting line heat and steel billet online.
In the process of slab flame Hand scarf, need to be by hydraulic system for lifting the rising to slabbing roll position and decline control.Hydraulic system for lifting is the core of slab flame cleaning process, and its performance is directly determining the effect of flame cleaning and the quality of slab quality.But conventionally adopt in the prior art, the control mode of single solenoid valve for the hydraulic system for lifting of slab flame cleaning unit.This technology control mode falls behind, and speed of response is slow, unstable properties, and lack effective safety measure, cannot be applicable to the continuous production of high strength slab.
Model utility content
The purpose of this utility model is to solve control mode in prior art and falls behind, and responds slowly and many defects of unstable properties.Provide a kind of compact structure, response rapidly, efficient energy-saving, stable performance and be applicable to the hydraulic system for lifting of high strength quantity-produced for slab Manual flame cleaning unit.
The hydraulic system for lifting for slab Manual flame cleaning unit the utility model proposes, is made up of solenoid directional control valve, one way pressure-reducing valve, plug-in overflow valve, the first cartridge throttle valve, the second cartridge throttle valve, the first Pilot operated check valve, the second Pilot operated check valve, one-way valve, oil hydraulic cylinder and hydraulic manifold block; Wherein:
The actuator port P of described solenoid directional control valve is communicated with oil sources by pipeline, the actuator port T of solenoid directional control valve is communicated with the downstream of plug-in overflow valve and the upstream of one-way valve respectively by the pipeline in hydraulic manifold block, the actuator port A of solenoid directional control valve is communicated with the upstream of one way pressure-reducing valve and the auxiliary hydraulic fluid port of the second Pilot operated check valve respectively by the pipeline in hydraulic manifold block, and the actuator port B of solenoid directional control valve is communicated with the upstream of the first cartridge throttle valve and the auxiliary hydraulic fluid port of the first Pilot operated check valve respectively by the pipeline in hydraulic manifold block;
The downstream of described one way pressure-reducing valve is communicated with downstream, the upstream of the second Pilot operated check valve and the rodless cavity of oil hydraulic cylinder of the first Pilot operated check valve respectively by the pipeline in hydraulic manifold block, and the auxiliary hydraulic fluid port of one way pressure-reducing valve is communicated with the drain tap of hydraulic manifold block;
The downstream of described the first cartridge throttle valve is communicated with the upstream of the second cartridge throttle valve and the rod chamber of oil hydraulic cylinder respectively by the pipeline in hydraulic manifold block;
The upstream of described the first Pilot operated check valve is communicated with the return opening of hydraulic manifold block by the pipeline in hydraulic manifold block; The downstream of described the second Pilot operated check valve is communicated with the downstream of the second cartridge throttle valve by the pipeline in hydraulic manifold block.
The beneficial effects of the utility model are: the one, and the remarkable advantage such as it is large that cartridge valve has through-current capability, and working pressure is high, good seal performance, can improve Security, stability and the reliability of whole hydraulic system in conjunction with the control mode of solenoid directional control valve; The 2nd, make system architecture more compact with cartridge valve in conjunction with the design of hydraulic manifold block; The 3rd, adopt the design in hydraulic differential loop, both effectively improve the speed of response of system, reduce again system energy consumption, thereby can be adapted to unit high strength Sequential Production.
Brief description of the drawings
Fig. 1: a kind of hydraulic system for lifting schematic diagram for slab flame cleaning unit of the utility model.
Number in the figure: 1 is one-way valve, 2 is solenoid directional control valve, and 3 is one way pressure-reducing valve, and 4 is plug-in overflow valve, 5 is the first cartridge throttle valve, 6 is the second cartridge throttle valve, and 7 is the first Pilot operated check valve, and 8 is the second Pilot operated check valve, 9 is high-pressure ball valve, 10 is high-pressure ball valve, and 11 is oil hydraulic cylinder, and 12 is hydraulic manifold block.
Embodiment
Further describe by reference to the accompanying drawings the utility model below by embodiment.
Embodiment 1: the hydraulic system for lifting of a kind of slab Manual flame cleaning unit as shown in Figure 1, is made up of one-way valve 1, solenoid directional control valve 2, one way pressure-reducing valve 3, plug-in overflow valve 4, the first cartridge throttle valve 5, the second cartridge throttle valve 6, the first Pilot operated check valve 7, the second Pilot operated check valve 8, high-pressure ball valve 9, high-pressure ball valve 10, oil hydraulic cylinder 11 and hydraulic manifold block 12.
The actuator port P of described solenoid directional control valve 2 is communicated with outside oil sources pumping plant by the pipeline in hydraulic manifold block 12; The actuator port T of described solenoid directional control valve 2 is communicated with the actuator port B of plug-in overflow valve 4 and the actuator port A of one-way valve 1 respectively by the pipeline in hydraulic manifold block 12; The actuator port A of described solenoid directional control valve 2 is communicated with the actuator port A of one way pressure-reducing valve 3 and the auxiliary hydraulic fluid port Y of the second Pilot operated check valve 8 respectively by the pipeline in hydraulic manifold block 12; The actuator port B of described solenoid directional control valve 2 is communicated with the actuator port A of the first cartridge throttle valve 5 and the auxiliary hydraulic fluid port Y of the first Pilot operated check valve 7 respectively by the pipeline in hydraulic manifold block 12.
The actuator port B of described one way pressure-reducing valve 3 is communicated with actuator port B, the actuator port A of the second Pilot operated check valve 8 and the rodless cavity of oil hydraulic cylinder 11 of the first Pilot operated check valve 7 respectively by the pipeline in hydraulic manifold block 12; The auxiliary hydraulic fluid port Y of described one way pressure-reducing valve 5 is communicated with the drain tap L of hydraulic manifold block 12.
The actuator port B of described the first cartridge throttle valve 5 is communicated with actuator port A, the actuator port A of plug-in overflow valve 4 and the rod chamber of oil hydraulic cylinder 11 of the second cartridge throttle valve 6 respectively by the pipeline in hydraulic manifold block 12.
The actuator port A of described the first Pilot operated check valve 7 is communicated with the oil return inlet T of hydraulic manifold block 12 by the pipeline in hydraulic manifold block 12; The actuator port B of described the second Pilot operated check valve 8 is communicated with the actuator port B of the second cartridge throttle valve 6 by the pipeline in hydraulic manifold block 12.
Working procedure of the present utility model is as follows:
In the time that roller-way need to rise, outside oil sources pumping plant starts, system made pressure, and pressure oil enters the actuator port P of solenoid directional control valve 2 through main pipeline.Now, solenoid directional control valve 2 switches to right position function, and pressure oil is pumped by the actuator port A of solenoid directional control valve 2, by entering the rodless cavity of oil hydraulic cylinder 11 after one way pressure-reducing valve 3, high-pressure ball valve 9, promotes roll fast rise.Meanwhile, the rodless cavity inner fluid of oil hydraulic cylinder 11 is after high-pressure ball valve 10, and a part arrives overflow oil return after the force value set of plug-in overflow valve 4; Another part through the second cartridge throttle valve 6 to oil hydraulic cylinder rodless cavity topping up.In this process, regulating the throttle orifice aperture of the second cartridge throttle valve 6 is the rate of climb in adjustable roller road.
In the time that roller-way needs off-load, solenoid directional control valve 2 is powered down to Median Function, realizes system unloaded.
In the time that roll need to decline, outside oil sources pumping plant starts, and system re-establishes pressure, and pressure oil enters the actuator port P of solenoid directional control valve 2 through main pipeline.Now, solenoid directional control valve 2 switches to left position function, and pressure oil is pumped by the actuator port B of solenoid directional control valve 2, by entering the rodless cavity of oil hydraulic cylinder 11 after the first cartridge throttle valve 5, high-pressure ball valve 10, promotes roller-way and declines.Simultaneously, the rod chamber fluid of oil hydraulic cylinder 11 is after high-pressure ball valve 1, the oil return inlet T that part fluid imports hydraulic manifold block 12 by the backward channel of the first Pilot operated check valve 3 realizes oil return, and another part is realized oil return by the oil return inlet T of the reverse remittance hydraulic manifold block 12 of one way pressure-reducing valve 5.In this process, regulating the throttle orifice aperture of the first cartridge throttle valve 5 is the rate of descent in adjustable roller road.
It should be noted that in the time that roller-way rises, need to guarantee that the pressure set points of one way pressure-reducing valve 3 and plug-in overflow valve 4 is identical not only can improve the roller-way rate of climb like this to form hydraulic differential loop, has significantly reduced system energy consumption simultaneously; In the time that roller-way declines, plug-in overflow valve 4 plays voltage stabilizing overflow effect, for system load provides safety protection.
Claims (1)
1. the hydraulic system for lifting for slab flame cleaning unit, formed by solenoid directional control valve (2), one way pressure-reducing valve (4), plug-in overflow valve (5), the first cartridge throttle valve (5), the second cartridge throttle valve (6), the first Pilot operated check valve (7), the second Pilot operated check valve (8), one-way valve (1), oil hydraulic cylinder (11) and hydraulic manifold block (12), it is characterized in that:
The actuator port P of described solenoid directional control valve (2) is communicated with oil sources by pipeline, the actuator port T of solenoid directional control valve (2) is communicated with the downstream of plug-in overflow valve (5) and the upstream of one-way valve (1) respectively by the pipeline in hydraulic manifold block (12), the actuator port A of solenoid directional control valve (2) is communicated with the upstream of one way pressure-reducing valve (4) and the auxiliary hydraulic fluid port of the second Pilot operated check valve (8) respectively by the pipeline in hydraulic manifold block (12), the actuator port B of solenoid directional control valve (2) is communicated with the upstream of the first cartridge throttle valve (5) and the auxiliary hydraulic fluid port of the first Pilot operated check valve (7) by pipeline respectively,
The downstream of described one way pressure-reducing valve (3) is communicated with downstream, the upstream of the second Pilot operated check valve (8) and the rodless cavity of oil hydraulic cylinder (11) of the first Pilot operated check valve (7) respectively by the pipeline in hydraulic manifold block (12), and the auxiliary hydraulic fluid port of one way pressure-reducing valve (3) is communicated with the drain tap of hydraulic manifold block (12);
The downstream of described the first cartridge throttle valve (5) is communicated with the upstream of the second cartridge throttle valve (6) and the rod chamber of oil hydraulic cylinder (11) respectively by the pipeline in hydraulic manifold block (12);
The upstream of described the first Pilot operated check valve (7) is communicated with the return opening of hydraulic manifold block (12) by the pipeline in hydraulic manifold block (12); The downstream of described the second Pilot operated check valve (8) is communicated with the downstream of the second cartridge throttle valve (6) by the pipeline in hydraulic manifold block (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420094633.9U CN203770284U (en) | 2014-03-04 | 2014-03-04 | Lifting hydraulic system used for flat blank scarfing unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420094633.9U CN203770284U (en) | 2014-03-04 | 2014-03-04 | Lifting hydraulic system used for flat blank scarfing unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203770284U true CN203770284U (en) | 2014-08-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420094633.9U Expired - Fee Related CN203770284U (en) | 2014-03-04 | 2014-03-04 | Lifting hydraulic system used for flat blank scarfing unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203770284U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105201934A (en) * | 2015-10-26 | 2015-12-30 | 中国重型机械研究院股份公司 | Novel hydraulic control system of transfer-machine |
| CN108506260A (en) * | 2018-04-11 | 2018-09-07 | 大连船舶重工集团舵轴有限公司 | Sail lifts emergency protection system |
-
2014
- 2014-03-04 CN CN201420094633.9U patent/CN203770284U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105201934A (en) * | 2015-10-26 | 2015-12-30 | 中国重型机械研究院股份公司 | Novel hydraulic control system of transfer-machine |
| CN108506260A (en) * | 2018-04-11 | 2018-09-07 | 大连船舶重工集团舵轴有限公司 | Sail lifts emergency protection system |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140813 Termination date: 20160304 |
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| CF01 | Termination of patent right due to non-payment of annual fee |