CN205001285U - Hydraulic cylinder accelerates and pressurizer - Google Patents
Hydraulic cylinder accelerates and pressurizer Download PDFInfo
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- CN205001285U CN205001285U CN201520628211.XU CN201520628211U CN205001285U CN 205001285 U CN205001285 U CN 205001285U CN 201520628211 U CN201520628211 U CN 201520628211U CN 205001285 U CN205001285 U CN 205001285U
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- accumulator
- hydraulic jack
- pressurizer
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Abstract
The utility model provides a hydraulic cylinder accelerates and pressurizer, is including switching -over valve and hydraulic cylinder, hydraulic cylinder is connected to the switching -over valve, its characterized in that: still include the accumulator, according to actual need cooperation accumulator sets up the oil circuit of different functions: supply with the oil circuit, accelerate oil circuit and pressurize oil circuit. The utility model discloses a gain and loss electricity of PLC control direction valve, direction valve and switching -over valve forms the oil circuit that possesses different functions, including supplying with the oil circuit, accelerateing oil circuit and pressurize oil circuit. Wherein, it is by the main system fuel feeding to supply with the oil circuit, can make hydraulic cylinder move with slower speed, the oil circuit is supplied with by the accumulator with higher speed, makes hydraulic cylinder remove with very fast speed, the pressurize oil circuit is provided the pressure that lasts by the accumulator for keep the pressure of hydraulic cylinder back cavity, make hydraulic cylinder be in the tight state that presss from both sides. This structure has simple to operate, with low costs, job stabilization, long service life, the convenient characteristics of maintenance.
Description
Technical field
The utility model relate to a kind of hydraulic jack accelerate and pressurizer, particularly a kind of for die casting machine loose core oil cylinder or pressurized oil cylinder hydraulic jack accelerate and pressurizer.
Background technique
Chinese patent literature CN203321924U on December 04th, 2013 disclose a kind ofly control that oil cylinder stretches, pressurize and floating hydraulic pressure installation, specifically disclose and comprise oil cylinder, Proportional valve, one-way throttle valve, shuttle valve, damping throttle valve, bidirectional hydraulic lock, one-way valve, solenoid directional control valve and corresponding connecting pipeline; Wherein, oil cylinder rodless cavity and bidirectional hydraulic lock, one-way throttle valve and Proportional valve the first oil circuit in series; Cylinder rod chamber forms the second oil circuit after connecting with bidirectional hydraulic lock and Proportional valve; Be connected with shuttle valve between first oil circuit and the second oil circuit, connect bidirectional hydraulic lock and one-way valve respectively by after shuttle valve the 3rd end series damped throttle valve, one-way valve and solenoid directional control valve connect and compose the 3rd oil circuit; Described Proportional valve connects main system pressure oil sources; Described solenoid directional control valve connection control system pressure oil-source.: comprise solenoid directional control valve in described Proportional valve.This structure discloses the hydraulic pressure installation of band pressurize, but the complexity owing to controlling, and the unstability of performance, cause this structure short for working life, and difficult in maintenance.
Chinese patent literature CN203230640U discloses a kind of concrete pumping cylinder buffer hydraulic system with air bag accumulator on October 9th, 2013, and specifically discloses and combined by air sac type accumulator, pumps hydraulic oil cylinder and selector valve; It is characterized in that: air bag accumulator is contained on the pressure oil oil-feed oil circuit of selector valve, in air bag accumulator, pour the inert gas of a little higher than pumps hydraulic cylinder efficient pressure.This structure discloses the hydraulic system that band accelerates, and it mainly employs air bag accumulator and realizes object, but air bag accumulator easily damages, and is article of consumption, and in addition, the pressure transient that air bag accumulator produces, the stability of function is accelerated in impact.
For the shortcoming problem of above-mentioned existence, be necessary to make further improvements.
Model utility content
The purpose of this utility model aim to provide a kind of simple and reasonable, easy for installation, cost is low, working stability, long service life, hydraulic jack easy to maintenance accelerate and pressurizer, to overcome deficiency of the prior art.
A kind of hydraulic jack designed by this object accelerates and pressurizer, comprises selector valve and hydraulic jack, described selector valve connecting fluid compressing cylinder; It is characterized in that: also comprise accumulator, coordinate accumulator that the oil circuit of difference in functionality is set according to actual needs: supply oil circuit, acceleration oil circuit and pressurize oil circuit.
Described supply oil circuit is made up of cartridge valve, plug-in mounting valve gap, first direction valve and selector valve; The back cavity of described hydraulic jack is connected with the right position of selector valve and passes through cartridge valve connected system.
Described acceleration oil circuit and pressurize oil circuit are connected by first direction valve, accumulator, third direction valve, cartridge valve, the second one-way valve and selector valve respectively and form, and described accumulator fluid end is connected with hydraulic jack back cavity by the right position of selector valve.Described third direction valve, cartridge valve and the second one-way valve are connected between accumulator and selector valve successively, and wherein third direction valve and cartridge valve are connected in parallel.
Also be provided with rollback oil circuit, being connected by cartridge valve, plug-in mounting valve gap, first direction valve and selector valve forms; The ante-chamber of described hydraulic jack is connected with the left position of selector valve and passes through cartridge valve connected system.
Described accumulator is piston accumulator, and the fluid end of accumulator connects the first one-way valve and reduction valve successively, and connected system.
The fluid end of described accumulator is connected with fuel tank by second direction valve or throttle valve; Described second direction valve and throttle valve are connected in parallel.
Oil feeding line, acceleration oil circuit and pressurize oil circuit operate independently of one another, and selection and the control of oil circuit are completed by PLC; PLC obtains especially by control first direction valve, third direction valve and selector valve selection and the control that dead electricity completes oil circuit.
The utility model is by the cartridge valve that is connected, plug-in mounting valve gap, directional control valve, accumulator, directional control valve, cartridge valve, one-way valve and selector valve, again by PLC control directional control valve, directional control valve and selector valve dead electricity, form the oil circuit of tool difference in functionality, comprise supply oil circuit, accelerate oil circuit and pressurize oil circuit.Wherein, supply oil circuit is by main system fuel feeding, and hydraulic jack can be made to move with slower speed; Accelerate oil circuit to be supplied by accumulator, hydraulic jack is moved with speed faster; Pressurize oil circuit provides lasting pressure by accumulator, in order to keep the pressure of hydraulic jack back cavity, makes hydraulic jack be in clamped condition.This device for loose core oil cylinder and the local compressed oil cylinder of die casting machine, in addition, can also apply to the cylinder system needing fast moving or need pressurize.This structure have easy for installation, cost is low, working stability, long service life, feature easy to maintenance.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the utility model one embodiment.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further described.
See Fig. 1, this hydraulic jack accelerates and pressurizer, comprises cartridge valve 1, plug-in mounting valve gap 2, first direction valve 3, reduction valve 4, first one-way valve 5, throttle valve 6, second direction valve 7, accumulator 9, third direction valve 13, cartridge valve 14, second one-way valve 15, selector valve 16 and hydraulic jack 17.Selector valve 16 connecting fluid compressing cylinder 17, coordinates accumulator 9 to arrange the oil circuit of difference in functionality: supply oil circuit, acceleration oil circuit and pressurize oil circuit according to actual needs.
Specifically:
Supply oil circuit is made up of cartridge valve 1, plug-in mounting valve gap 2, first direction valve 3 and selector valve 16; Now, the back cavity of hydraulic jack 17 is connected with the right position of selector valve 16 and passes through cartridge valve 1 connected system P.
Acceleration oil circuit and pressurize oil circuit are connected by first direction valve 3, accumulator 9, third direction valve 13, cartridge valve 14, second one-way valve 15 and selector valve 16 respectively and form, and accumulator 9 fluid end is connected with hydraulic jack 17 back cavity by the right position of selector valve 16.Third direction valve 13, cartridge valve 14 and the second one-way valve 15 are connected between accumulator 9 and selector valve 16 successively, and wherein third direction valve 13 and cartridge valve 14 are connected in parallel.
Except above-mentioned oil circuit, be also provided with rollback oil circuit, being connected by cartridge valve 1, plug-in mounting valve gap 2, first direction valve 3 and selector valve 16 forms; The ante-chamber of hydraulic jack 17 is connected with the left position of selector valve 16 and passes through cartridge valve 1 connected system P.
Accumulator 9 is piston accumulator, and the fluid end of accumulator 9 connects the first one-way valve 5 and reduction valve 4 successively, and connected system.The fluid end of accumulator 9 is connected with fuel tank by second direction valve 7 or throttle valve 6; Second direction valve 7 and throttle valve 6 are connected in parallel.
Oil feeding line, acceleration oil circuit, pressurize oil circuit and rollback oil circuit operate independently of one another, and selection and the control of oil circuit are completed by PLC; PLC obtains especially by control first direction valve 3, third direction valve 13 and selector valve 16 selection and the control that dead electricity completes oil circuit.
Action specification:
1, hydraulic jack 17 at a slow speed work enter (supply oil circuit): PLC to control on the right of first direction valve 3 and selector valve 16 electromagnet respectively electric, system oil flows to hydraulic jack 17 back cavity through cartridge valve 1 and selector valve 16 and promotes oil cylinder piston advance, realizes work at a slow speed and enters.
2, the quick work of hydraulic jack 17 is entered (acceleration oil circuit): PLC controls first direction valve 3 and obtains electric, on the right of selector valve 16, electromagnet obtains electric, third direction valve 13 obtains the electric cartridge valve 14 that makes and opens, the fluid of accumulator 9 enters hydraulic jack 17 back cavity together with system oil, promote cylinder piston rod to advance fast, realize quick work and enter.
3, hydraulic jack 17 pressurize (pressurize oil circuit): PLC controls first direction valve 3 dead electricity makes cartridge valve 1 close, third direction valve 13 obtains the electric cartridge valve 14 that makes and opens, on the right of selector valve 16, electromagnet obtains electric, and accumulator 9 fluid enters hydraulic jack 17 back cavity and realizes pressurize.
4, hydraulic jack 17 rollback (rollback oil circuit): PLC control first direction valve 3 must be opened by the electric cartridge valve 1 that makes, selector valve 16 left side electromagnet obtains electric, and system oil enters the ante-chamber of hydraulic jack 17, and fuel tank got back to by the oil of back cavity, oil cylinder piston retreats, and realizes rollback.
Above-mentioned is preferred version of the present utility model, shows and describes basic principle of the present utility model, major character and advantage of the present utility model.Those skilled in the art should understand the utility model and not be restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope, the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (8)
1. hydraulic jack accelerates and a pressurizer, comprises selector valve (16) and hydraulic jack (17), described selector valve (16) connecting fluid compressing cylinder (17); It is characterized in that: also comprise accumulator (9), coordinate accumulator (9) that the oil circuit of difference in functionality is set according to actual needs: supply oil circuit, acceleration oil circuit and pressurize oil circuit.
2. hydraulic jack according to claim 1 accelerates and pressurizer, it is characterized in that: described supply oil circuit is made up of cartridge valve (1), plug-in mounting valve gap (2), first direction valve (3) and selector valve (16); The back cavity of described hydraulic jack (17) is connected with the right position of selector valve (16) and passes through cartridge valve (1) connected system.
3. hydraulic jack according to claim 1 accelerates and pressurizer, it is characterized in that: described acceleration oil circuit and pressurize oil circuit are connected by first direction valve (3), accumulator (9), third direction valve (13), cartridge valve (14), the second one-way valve (15) and selector valve (16) respectively and form, described accumulator (9) fluid end is connected with hydraulic jack (17) back cavity by selector valve (16) right position.
4. hydraulic jack according to claim 3 accelerates and pressurizer, it is characterized in that: described third direction valve (13), cartridge valve (14) and the second one-way valve (15) are connected between accumulator (9) and selector valve (16) successively, wherein third direction valve (13) and cartridge valve (14) are connected in parallel.
5. hydraulic jack according to claim 1 accelerates and pressurizer, it is characterized in that: be also provided with rollback oil circuit, being connected by cartridge valve (1), plug-in mounting valve gap (2), first direction valve (3) and selector valve (16) forms; The ante-chamber of described hydraulic jack (17) is connected with the left position of selector valve (16) and passes through cartridge valve (1) connected system.
6. the hydraulic jack according to any one of claim 1-5 accelerates and pressurizer, it is characterized in that: described accumulator (9) is piston accumulator, the fluid end of accumulator (9) connects the first one-way valve (5) and reduction valve (4) successively, and connected system.
7. hydraulic jack according to claim 6 accelerates and pressurizer, it is characterized in that: the fluid end of described accumulator (9) is connected with fuel tank by second direction valve (7) or throttle valve (6); Described second direction valve (7) and throttle valve (6) are connected in parallel.
8. hydraulic jack according to claim 7 accelerates and pressurizer, it is characterized in that: oil feeding line, acceleration oil circuit and pressurize oil circuit operate independently of one another, and selection and the control of oil circuit are completed by PLC; PLC especially by control first direction valve (3), third direction valve (13) and selector valve (16) dead electricity must complete selection and the control of oil circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520628211.XU CN205001285U (en) | 2015-08-19 | 2015-08-19 | Hydraulic cylinder accelerates and pressurizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520628211.XU CN205001285U (en) | 2015-08-19 | 2015-08-19 | Hydraulic cylinder accelerates and pressurizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205001285U true CN205001285U (en) | 2016-01-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520628211.XU Active CN205001285U (en) | 2015-08-19 | 2015-08-19 | Hydraulic cylinder accelerates and pressurizer |
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| Country | Link |
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| CN (1) | CN205001285U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108372283A (en) * | 2018-04-13 | 2018-08-07 | 宁波力劲科技有限公司 | A kind of die casting machine core-pulling device and core pulling method |
-
2015
- 2015-08-19 CN CN201520628211.XU patent/CN205001285U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108372283A (en) * | 2018-04-13 | 2018-08-07 | 宁波力劲科技有限公司 | A kind of die casting machine core-pulling device and core pulling method |
| CN108372283B (en) * | 2018-04-13 | 2024-04-19 | 宁波力劲科技有限公司 | Core pulling method of core pulling device of die casting machine |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 528300 Guangdong province Foshan city Shunde high tech Zone (Ronggui) No. 22 Keyuan Road three Patentee after: Yizhimi Co.,Ltd. Address before: 528300 Guangdong province Foshan city Shunde high tech Zone (Ronggui) No. 22 Keyuan Road three Patentee before: GUANGDONG YIZUMI PRECISION MACHINERY Co.,Ltd. |