CN203223567U - Vibration reducing prefill valve - Google Patents
Vibration reducing prefill valve Download PDFInfo
- Publication number
- CN203223567U CN203223567U CN 201320277140 CN201320277140U CN203223567U CN 203223567 U CN203223567 U CN 203223567U CN 201320277140 CN201320277140 CN 201320277140 CN 201320277140 U CN201320277140 U CN 201320277140U CN 203223567 U CN203223567 U CN 203223567U
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- load
- main valve
- valve
- called
- spool
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Abstract
The utility model provides a vibration reducing prefill valve which comprises a valve seat (1), a main valve core (11), a grate-shaped blocking part (12), an unloading valve body (13), an unloading valve core (21), a driving piston (22), a piston spring (23) and a valve rod spring (24). The main valve seat is provided with a main valve opening and a main runner, and the main valve core is provided with an unloading opening and an unloading runner. The flow-limiting damping function of the unloading runner is utilized to delay the main valve opening to be opened or stopping the main valve opening to reduce impact vibration and striking noise of a hydraulic hammer. The vibration reducing prefill valve enables a prefill device and an unloading vibration reducing device to be integrated so as to enable a large hydraulic machine to achieve the purposes of simplifying the structure of a hydraulic control system and reducing cost.
Description
Technical field
The utility model relates to a kind of liquid-filling valve, specifically refers to a kind of vibration damping liquid-filling valve for the quick oil-filled load of oil cylinder of giving hydraulic press and quick oil extraction off-load.
Background technique
Liquid-filling valve is a kind of Pilot operated check valve for the quick oil-filled load of oil cylinder of giving hydraulic press and quick oil extraction off-load, during large hydraulic press work, the a large amount of hydraulic oil that is in high pressure conditions passes in and out fuel tank at a high speed by the keying of liquid-filling valve in the oil cylinder, high speed and a large amount of hydraulic oil stream can produce strong to oil-way system and the hydraulic press itself of hydraulic press in the moment that liquid-filling valve opens and closes, harmful impact shock and impact noise are called the liquid hammer vibration, prior art adopts the auxiliary unloading valve that small flow is set in addition in advance to the hydraulic oil off-load that is in high pressure conditions in the oil cylinder, the liquid-filling valve of opening big flow again impacts to alleviate liquid hammer, because setting up unloading valve makes the hydraulic control system of hydraulic press more complicated, simultaneously potential failsafe link is increased, cause manufacture cost and the operation expense of large hydraulic press to increase, so there is the system architecture complexity in prior art, the problems and shortcomings that cost is high.
Summary of the invention
Problems and shortcomings at above-mentioned prior art existence, the utility model adopts the device that is made of main valve seat, main valve plug, grate shape retaining, off-load valve body, off-load spool, driven plunger, piston spring, valve rod spring, wherein, main valve seat is provided with primary valve and sprue, main valve plug is provided with off-load mouth and off-load runner, the off-load valve body is provided with the hydraulic control interface, and the off-load spool is provided with valve rod; The off-load valve body is fixed on the top center of main valve seat, main valve plug is plugged in the primary valve place, the off-load spool is plugged in off-load mouth place, the driven plunger of drum shape can slide up and down and be positioned at the off-load valve body, valve rod, piston spring and valve rod spring are positioned at driven plunger, and grate shape retaining retaining is fixedlyed connected with main valve plug below the off-load spool; During off-load backflow work, the hydraulic control signal enters the off-load valve body through the hydraulic control interface, and promote valve rod by driven plunger and drive the off-load spool and move down and open the off-load mouth, the hydraulic oil that is arranged in the high pressure conditions of main valve plug below oil cylinder enters the fuel tank that is positioned at the main valve seat top and the explosive decompression off-load by grate aperture off-load mouth, off-load runner, the sprue of grate shape retaining, along with the off-load spool continue move down, the off-load spool touches grate shape retaining downwards, drive main valve plug thereupon and move down the unlatching primary valve, the oil stream of a large amount of low pressure by primary valve through the sprue fuel tank that refluxes; Reflux and finish, piston spring and valve rod spring drive driven plunger, valve rod and off-load spool respectively and upwards reset, and main valve plug is then driven by the off-load spool and resets; During oil-filled injection work, a large amount of oil stream is pushed main valve plug from fuel tank open by sprue and is poured in the oil cylinder through primary valve, oil-filled end, in-oil cylinder hydraulic oil progressively transfers high pressure conditions to, the hydraulic oil that progressively transfers high pressure to is the compressing main valve plug sealing primary valve that resets earlier, oppress off-load valve core reset sealing off-load mouth again, utilize the current limliting damping function of off-load runner, the technological scheme that lags behind and open or alleviate liquid hammer impact shock and impact noise by primary valve, a kind of vibration damping liquid-filling valve is provided, be intended to by topping up and off-load vibration damping equipment is integrated, large hydraulic press reached simplify the hydraulic control system structure, the purpose that reduces cost.
The purpose of this utility model is achieved in that a kind of vibration damping liquid-filling valve, comprise main valve seat, main valve plug, grate shape retaining, the off-load valve body, the off-load spool, driven plunger, piston spring, the valve rod spring, wherein: described main valve seat is the steel components of oblate cylindricality, be provided with some around the center above the main valve seat, centroclinal circular port is called sprue from top to bottom, the groove that the following center of main valve seat is provided with up-small and down-big truncated cone is called primary valve, described primary valve communicates with described sprue, the center of main valve seat is provided with circular through hole and is called valve rod hole, and the through hole that also is provided with some circles between described sprue and described valve rod hole is called intercommunicating pore;
Described main valve plug is the steel components of up big and down small cylinder stepped shape, the top center of the big step in main valve plug top is provided with circular through hole and is called the spool mesopore, be provided with some centroclinal circular holes from top to bottom around described spool mesopore and be called the off-load runner, the aperture of described off-load runner is less than the aperture of the described sprue of main valve seat; The groove that the following center of main valve plug bottom small stair is provided with up-small and down-big step cutting pattern shape is called the off-load mouth, the upper end of described off-load mouth communicates with described spool mesopore, the cell wall of the top small stair of described off-load mouth communicates with described off-load runner, and the cell wall of the big step in bottom of described off-load mouth is provided with for the internal thread that connects grate shape retaining;
Described grate shape retaining is the steel components of up-small and down-big cylinder stepped shape, the top center of grate shape retaining is provided with circular groove and is called compensating groove, the through hole that the bottom land of described compensating groove is provided with some circles is called the grate hole, and the top small stair post jamb of grate shape retaining is provided with for the outside thread that connects described off-load mouth;
Described off-load valve body is the steel components that top lower open, tubbiness are arranged at cylindrical, hollow, top, and the top center of off-load valve body is provided with the through hole that has internal thread and is called the hydraulic control interface;
Described off-load spool is fixed with the shaft-like valve rod of cylinder for the down big steel components of little truncated cone above the off-load spool; The top of described valve rod is fixed with flange connector;
Described driven plunger is the steel components that top lower open, tubbiness are arranged at cylindrical, hollow, top, and the center is provided with circular groove and is called the appearance oil groove above driven plunger outer;
Described piston spring and valve rod spring are cylindroid helicalcoil compression spring;
The off-load valve body is fixedly connected on the top center of main valve seat, main valve plug is plugged in the primary valve place, the off-load spool is plugged in off-load mouth place, driven plunger can slide up and down and be positioned at the off-load valve body, valve rod, piston spring and valve rod spring are positioned at driven plunger, wherein, piston spring stays between driven plunger inner top and main valve seat top, and the valve rod spring stays between the described flange connector of described valve rod and main valve seat top; Grate shape gear is fixedly connected on the big step place of the described off-load mouth bottom of main valve plug in the below of off-load spool.
Working principle and beneficial effect
This device is installed in when using between the top of the bottom of fuel tank of hydraulic press and oil cylinder, and the hydraulic control interface is connected with the hydraulic control system of hydraulic press.
During off-load backflow work, hydraulic control signal malleation, the hydraulic control signal enters the off-load valve body through the hydraulic control interface, and promote valve rod by driven plunger and drive the off-load spool and move down and open the off-load mouth, the hydraulic oil of the high pressure conditions in the oil cylinder enters the fuel tank that is positioned at the main valve seat top and the explosive decompression off-load by grate aperture off-load mouth, off-load runner, the sprue of grate shape retaining, along with the off-load spool continue move down, the off-load spool touches grate shape retaining downwards, drive main valve plug thereupon and move down the unlatching primary valve, the oil stream of a large amount of low pressure by primary valve through the sprue fuel tank that refluxes; Reflux and finish, hydraulic control signal zero-pressure, piston spring and valve rod spring drive driven plunger, valve rod and off-load spool respectively and upwards reset, and main valve plug is then driven by the off-load spool and resets;
During oil-filled injection work, a large amount of oil stream is pushed main valve plug from fuel tank open by sprue and is poured in the oil cylinder through primary valve, oil-filled end, in-oil cylinder hydraulic oil progressively rises to high pressure conditions, the hydraulic oil that progressively transfers high pressure to is the compressing main valve plug sealing primary valve that resets earlier, oppresses off-load valve core reset sealing off-load mouth again; Therebetween, the backflow effect that plays oil plant in balance connection fuel tank and the unloading valve intracoelomic cavity of described intercommunicating pore.
This device utilizes the current limliting damping function of off-load runner, and lag behind to open or alleviate liquid hammer impact shock and impact noise by primary valve, and by integratedly making large hydraulic press simplify the hydraulic control system structure topping up and off-load vibration damping equipment, having reduced cost.
Above-mentioned, the utility model adopts the device that is made of main valve seat, main valve plug, grate shape retaining, off-load valve body, off-load spool, driven plunger, piston spring, valve rod spring, wherein, main valve seat is provided with primary valve and sprue, main valve plug is provided with off-load mouth and off-load runner, the off-load valve body is provided with the hydraulic control interface, and the off-load spool is provided with valve rod; The off-load valve body is fixed on the top center of main valve seat, main valve plug is plugged in the primary valve place, the off-load spool is plugged in off-load mouth place, the driven plunger of drum shape can slide up and down and be positioned at the off-load valve body, valve rod, piston spring and valve rod spring are positioned at driven plunger, and grate shape retaining retaining is fixedlyed connected with main valve plug below the off-load spool; Utilize the current limliting damping function of off-load runner, the technological scheme that lags behind and open or alleviate liquid hammer impact shock and impact noise by primary valve, a kind of vibration damping liquid-filling valve is provided, by topping up and off-load vibration damping equipment is integrated, make large hydraulic press reach the purpose of simplifying the hydraulic control system structure, reducing cost.
Description of drawings
Fig. 1 is the structure cross-sectional schematic of a kind of vibration damping liquid-filling valve of the present utility model;
Fig. 2 is the application scheme of installation of a kind of vibration damping liquid-filling valve of the present utility model.
Below in conjunction with the embodiment in the accompanying drawing the utility model is described in further detail, but should not be construed as any restriction of the present utility model.
Among the figure: main valve seat 1, primary valve 101, sprue 102, intercommunicating pore 103, main valve plug 11, off-load mouth 111, off-load runner 112, grate shape retaining 12, off-load valve body 2, hydraulic control interface 201, off-load spool 21, valve rod 211, driven plunger 22, piston spring 23, valve rod spring 24, oil cylinder 01, fuel tank 02.
Embodiment
Consult Fig. 1, Fig. 2, a kind of vibration damping liquid-filling valve of the present utility model, comprise main valve seat 1, main valve plug 11, grate shape retaining 12, off-load valve body 2, off-load spool 21, driven plunger 22, piston spring 23, valve rod spring 24, wherein: described main valve seat 1 is the steel components of oblate cylindricality, be provided with some around the center above the main valve seat 1, centroclinal circular port is called sprue 102 from top to bottom, the groove that the following center of main valve seat 1 is provided with up-small and down-big truncated cone is called primary valve 101, described primary valve 101 communicates with described sprue 102, the center of main valve seat 1 is provided with circular through hole and is called valve rod hole, and the through hole that also is provided with some circles between described sprue 102 and described valve rod hole is called intercommunicating pore 103;
Described main valve plug 11 is the steel components of up big and down small cylinder stepped shape, the top center of the big step in main valve plug 11 tops is provided with circular through hole and is called the spool mesopore, be provided with some centroclinal circular holes from top to bottom around described spool mesopore and be called off-load runner 112, the aperture of described off-load runner 112 is less than the aperture of the described sprue 102 of main valve seat 1; The groove that the following center of main valve plug 11 bottom small stairs is provided with up-small and down-big step cutting pattern shape is called off-load mouth 111, the upper end of described off-load mouth 111 communicates with described spool mesopore, the cell wall of the top small stair of described off-load mouth 111 communicates with described off-load runner 112, and the cell wall of the big step in bottom of described off-load mouth 111 is provided with for the internal thread that connects grate shape retaining 12;
Described grate shape retaining 12 is the steel components of up-small and down-big cylinder stepped shape, the top center of grate shape retaining 12 is provided with circular groove and is called compensating groove, the through hole that the bottom land of described compensating groove is provided with some circles is called the grate hole, and the top small stair post jamb of grate shape retaining 12 is provided with for the outside thread that connects described off-load mouth 111;
Described off-load valve body 2 has the steel components of top lower open, tubbiness for cylindrical, hollow, top, and the top center of off-load valve body 2 is provided with the through hole that has internal thread and is called hydraulic control interface 201;
Described off-load spool 21 is fixed with the shaft-like valve rod of cylinder 211 for the down big steel components of little truncated cone above the off-load spool 21; The top of described valve rod 211 is fixed with flange connector;
Described driven plunger 22 has the steel components of top lower open, tubbiness for cylindrical, hollow, top, and the center is provided with circular groove and is called the appearance oil groove above driven plunger 22 outer;
Described piston spring 23 and valve rod spring 24 are cylindroid helicalcoil compression spring;
Off-load valve body 2 is fixedly connected on the top center of main valve seat 1, main valve plug 11 is plugged in primary valve 101 places, off-load spool 21 is plugged in off-load mouth 111 places, driven plunger 22 can slide up and down and be positioned at off-load valve body 2, valve rod 211, piston spring 23 and valve rod spring 24 are positioned at driven plunger 22, wherein, piston spring 23 stays between driven plunger 22 inner tops and main valve seat 1 top, and valve rod spring 24 stays between the described flange connector of described valve rod 211 and main valve seat 1 top; Grate shape retaining 12 is positioned at the below of off-load spool 21, is fixedly connected on the big step place of described off-load mouth 111 bottoms of main valve plug 11.
Working principle and beneficial effect
This device is installed in when using between the top of the bottom of fuel tank 02 of hydraulic press and oil cylinder 01, and hydraulic control interface 201 is connected with the hydraulic control system of hydraulic press.
During off-load backflow work, hydraulic control signal malleation, the hydraulic control signal enters off-load valve body 2 through hydraulic control interface 201, and promote valve rods 211 by driven plunger 22 and drive off-load spools 21 and move down and open off-load mouth 111, the hydraulic oil of the high pressure conditions in the oil cylinder 01 is by the grate aperture off-load mouth 111 of grate shape retaining 12, off-load runner 112, sprue 102 enters the fuel tank 02 that is positioned at main valve seat 1 top and the explosive decompression off-load, along with off-load spool 21 continue move down, off-load spool 21 touches grate shape retaining 12 downwards, drive main valve plug 11 thereupon and move down unlatching primary valve 101, the oil of a large amount of low pressure flows by primary valve 101 through sprue 102 backflow fuel tanks 02; Reflux and finish, hydraulic control signal zero-pressure, piston spring 23 and valve rod spring 24 drive driven plunger 22, valve rod 211 and off-load spool 21 respectively and upwards reset, and main valve plug 11 is then driven by off-load spool 21 and resets;
During oil-filled injection work, a large amount of oil stream is pushed main valve plug 11 from fuel tank 02 open by sprue 102 and is poured in the oil cylinder 01 through primary valve 101, oil-filled end, hydraulic oil in the oil cylinder 01 progressively rises to high pressure conditions, the hydraulic oil that progressively transfers high pressure to is the compressing main valve plug 11 sealing primary valve 101 that resets earlier, oppresses the off-load spool 21 sealing off-load mouth 111 that resets again; Therebetween, the backflow effect that plays oil plant in balance connection fuel tank 02 and off-load valve body 2 inner chambers of described intercommunicating pore 103.
This device utilizes the current limliting damping function of off-load runner 112, lag behind to open or alleviate liquid hammer impact shock and impact noise by primary valve 101, and by integratedly making large hydraulic press simplify the hydraulic control system structure topping up and off-load vibration damping equipment, having reduced cost.
Claims (1)
1. vibration damping liquid-filling valve, comprise main valve seat (1), main valve plug (11), grate shape retaining (12), off-load valve body (2), off-load spool (21), driven plunger (22), piston spring (23), valve rod spring (24), it is characterized in that: described main valve seat (1) is the steel components of oblate cylindricality, be provided with some around the center above the main valve seat (1), centroclinal circular port is called sprue (102) from top to bottom, the groove that the following center of main valve seat (1) is provided with up-small and down-big truncated cone is called primary valve (101), described primary valve (101) communicates with described sprue (102), the center of main valve seat (1) is provided with circular through hole and is called valve rod hole, is positioned at the through hole that also is provided with some circles between described sprue (102) and the described valve rod hole and is called intercommunicating pore (103);
Described main valve plug (11) is the steel components of up big and down small cylinder stepped shape, the top center of the big step in main valve plug (11) top is provided with circular through hole and is called the spool mesopore, be provided with some centroclinal circular holes from top to bottom around described spool mesopore and be called off-load runner (112), the aperture of described off-load runner (112) is less than the aperture of the described sprue (102) of main valve seat (1); The groove that the following center of main valve plug (11) bottom small stair is provided with up-small and down-big step cutting pattern shape is called off-load mouth (111), the upper end of described off-load mouth (111) communicates with described spool mesopore, the cell wall of the top small stair of described off-load mouth (111) communicates with described off-load runner (112), and the cell wall of the big step in bottom of described off-load mouth (111) is provided with for the internal thread that connects grate shape retaining (12);
Described grate shape retaining (12) is the steel components of up-small and down-big cylinder stepped shape, the top center of grate shape retaining (12) is provided with circular groove and is called compensating groove, the through hole that the bottom land of described compensating groove is provided with some circles is called the grate hole, and the top small stair post jamb of grate shape retaining (12) is provided with for the outside thread that connects described off-load mouth (111);
Described off-load valve body (2) has the steel components of top lower open, tubbiness for cylindrical, hollow, top, and the top center of off-load valve body (2) is provided with the through hole that has internal thread and is called hydraulic control interface (201);
Described off-load spool (21) is fixed with the shaft-like valve rod of cylinder (211) for the down big steel components of little truncated cone above the off-load spool (21); The top of described valve rod (211) is fixed with flange connector;
Described driven plunger (22) has the steel components of top lower open, tubbiness for cylindrical, hollow, top, and the center is provided with circular groove and is called the appearance oil groove above driven plunger (22) outer;
Described piston spring (23) and valve rod spring (24) are cylindroid helicalcoil compression spring;
Off-load valve body (2) is fixedly connected on the top center of main valve seat (1), main valve plug (11) is plugged in primary valve (101) and locates, off-load spool (21) is plugged in off-load mouth (111) and locates, driven plunger (22) can slide up and down and be positioned at off-load valve body (2), valve rod (211), piston spring (23) and valve rod spring (24) are positioned at driven plunger (22), wherein, piston spring (23) stays between driven plunger (22) inner top and main valve seat (1) top, and valve rod spring (24) stays between the described flange connector of described valve rod (211) and main valve seat (1) top; Grate shape retaining (12) is positioned at the below of off-load spool (21), is fixedly connected on the big step place of described off-load mouth (111) bottom of main valve plug (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320277140 CN203223567U (en) | 2013-05-07 | 2013-05-07 | Vibration reducing prefill valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320277140 CN203223567U (en) | 2013-05-07 | 2013-05-07 | Vibration reducing prefill valve |
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| Publication Number | Publication Date |
|---|---|
| CN203223567U true CN203223567U (en) | 2013-10-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320277140 Expired - Fee Related CN203223567U (en) | 2013-05-07 | 2013-05-07 | Vibration reducing prefill valve |
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| Country | Link |
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| CN (1) | CN203223567U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103963344A (en) * | 2014-05-16 | 2014-08-06 | 西安麦特沃金液控技术有限公司 | Method and device for enhancing discharge capacity of oil inlet channel of oil cylinder |
| CN105065731A (en) * | 2015-07-20 | 2015-11-18 | 中山市文天长液压机械有限公司 | Charging valve |
| CN113251158A (en) * | 2021-05-20 | 2021-08-13 | 安徽中捷自控设备有限公司 | But intelligent electric actuator of switch after outage |
-
2013
- 2013-05-07 CN CN 201320277140 patent/CN203223567U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103963344A (en) * | 2014-05-16 | 2014-08-06 | 西安麦特沃金液控技术有限公司 | Method and device for enhancing discharge capacity of oil inlet channel of oil cylinder |
| CN103963344B (en) * | 2014-05-16 | 2016-05-18 | 西安麦特沃金液控技术有限公司 | A kind of method and device that strengthens oil cylinder oil inlet passage conveyance capacity |
| CN105065731A (en) * | 2015-07-20 | 2015-11-18 | 中山市文天长液压机械有限公司 | Charging valve |
| CN105065731B (en) * | 2015-07-20 | 2018-05-18 | 中山市文天长液压机械有限公司 | A kind of prefill valve |
| CN113251158A (en) * | 2021-05-20 | 2021-08-13 | 安徽中捷自控设备有限公司 | But intelligent electric actuator of switch after outage |
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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 |
Granted publication date: 20131002 Termination date: 20180507 |
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| CF01 | Termination of patent right due to non-payment of annual fee |