CN203409164U - Liquid charging structure of hydraulic forging press - Google Patents
Liquid charging structure of hydraulic forging press Download PDFInfo
- Publication number
- CN203409164U CN203409164U CN201320468901.4U CN201320468901U CN203409164U CN 203409164 U CN203409164 U CN 203409164U CN 201320468901 U CN201320468901 U CN 201320468901U CN 203409164 U CN203409164 U CN 203409164U
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- flange
- liquid charging
- plunger
- valve
- prefill valve
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Abstract
The utility model discloses a liquid charging structure of a hydraulic forging press, relating to the technical field of hydraulic forging press. The liquid charging structure comprises a hydraulic press upper beam, a plunger and a liquid charging valve, wherein one end of the liquid charging valve is connected with a delivery valve of the plunger, and the other end of the liquid charging valve is connected with an oil tank. The liquid charging structure further comprises a flange respectively connected with the hydraulic press upper beam, the plunger and the liquid charging valve, wherein the flange is formed by fixedly connecting a large flange and a small flange, a connecting bracket connected with the small flange is arranged on the side wall of the liquid charging valve, a through hole matched with the small flange in size is formed in the hydraulic press upper beam, the small flange is arranged in the through hole, and the hydraulic press upper beam is connected with the plunger through the large flange. According to the liquid charging structure, the liquid charging valve is arranged between the plunger and the hydraulic press upper beam, thus the oil leakage is prevented in a joint of the liquid charging valve and an oil cylinder due to machine body deformation caused by insufficient pretightening force and equipment pressurizing, and a bolt is prevented from being broken due to imbalance of the pretightening force of the bolt of the liquid charging valve.
Description
Technical field
The utility model relates to hydraulic forging press technical field, particularly relates to a kind of topping up structure of hydraulic forging press.
Background technology
In recent years, high speed development along with hydraulic forging press technology, the demand of hydraulic forging press is also increasing, as everyone knows, traditional prefill valve is generally arranged on cylinder ports, and its Main Function is that oil-in is connected with surge-tank, quick when descending at oil cylinder piston or plunger, when simple dependence pump group is difficult to meet so large traffic demand, relying on prefill valve is directly a large amount of fuel feeding of oil cylinder from surge-tank at short notice.
At present, prefill valve is applied more form and is mainly contained two kinds in hydraulic press master cylinder: one, prefill valve is positioned at above modularization, and oil-in is connected with surge-tank by pipeline; Two, prefill valve is positioned at above modularization, and whole hydraulic valve is immersed in surge-tank inside; By practice, find, there is respectively following defect in above-mentioned two kinds of modes: the former shortcoming is: prefill valve pretightning force is required to harshness, and pretension deficiency can cause oil liquid leakage.Too high or the inhomogeneous meeting of pretightning force causes screw extraction; The latter's shortcoming is: prefill valve is positioned at surge-tank inside, and installation and maintenance are extremely inconvenient, and has increased the oil liquid leakage hidden danger of fuel tank and oil cylinder junction.
Utility model content
The technical problems to be solved in the utility model is: the topping up structure that the hydraulic forging press that a kind of operating efficiency is high is provided.
The technical scheme that the utility model is taked for the technical problem existing in solution known technology is:
A topping up structure, comprising: modularization, plunger and prefill valve; One end of described prefill valve is connected with the delivery valve of described plunger, the other end of described prefill valve is connected with fuel tank, it is characterized in that: also comprise the flange being connected with described modularization, plunger and prefill valve respectively, described flange is composed of a fixed connection by a coaxial large flange and a little flange; The sidewall of described prefill valve is provided with the connection bracket that is connected use with described little flange, at described modularization, be provided with the through hole matching with described little flange size, described little flange is placed in described through hole, between described modularization and plunger, by large flange, connects.
As preferred version, the utility model has also adopted following technical scheme:
Surrounding at described prefill valve is provided with sleeve, and one end of described sleeve is sandwiched between described little flange and modularization.
Inner side at described flange is provided with sealing gasket.
Advantage and the good effect that the utlity model has are: the utility model is placed in prefill valve between plunger and modularization, avoided because the pressurization of pretightning force deficiency and equipment causes that frame deflection causes prefill valve and oil cylinder junction fluid leakage phenomenon, and the screw extraction problem of having avoided prefill valve screw to cause due to pretightning force imbalance.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is partial structurtes schematic diagram of the present utility model, is mainly used in showing the structure of prefill valve;
Fig. 3 is partial structurtes schematic diagram of the present utility model, is mainly used in showing the structure of ring flange.
Wherein: 1, sleeve; 2, prefill valve; 2-1, connection bracket; 3, modularization; 4, plunger; 5-1, little flange, 5-2, large flange.
The specific embodiment
For further understanding utility model content of the present utility model, Characteristic, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows:
Refer to Fig. 1, Fig. 2 and Fig. 3, a kind of topping up structure of hydraulic forging press, comprising: modularization 3, plunger 4, prefill valve 2 and the flange being connected with modularization 3, plunger 4 and prefill valve 2 respectively; Wherein: one end of prefill valve 2 is connected with the delivery valve of plunger 4, and the other end of prefill valve 2 is connected with fuel tank, above-mentioned flange is composed of a fixed connection by coaxial a large flange 5-2 and a little flange 5-1; The sidewall of prefill valve 2 is provided with the connection bracket 2-1 that is connected use with little flange 5-1, fixed by screw between little flange 5-1 and connection bracket 2-1, at modularization 3, be provided with the through hole matching with little flange 5-1 size, little flange 5-1 is placed in through hole, between modularization 3 and plunger 4, by large flange 5-2, connects; Surrounding at prefill valve 2 is provided with sleeve 1, and one end of sleeve 1 is sandwiched between little flange 5-1 and modularization 3; In order further to improve sealing property, prevent the phenomenon that prefill valve 2 and oil cylinder junction fluid are revealed, in the inner side of above-mentioned flange, be provided with sealing gasket.
Above embodiment of the present utility model is had been described in detail, but described content is only preferred embodiment of the present utility model, can not be considered to for limiting practical range of the present utility model.All equalization variations of doing according to the utility model application range and improvement etc., within all should still belonging to patent covering scope of the present utility model.
Claims (3)
1. a topping up structure for hydraulic forging press, comprising: modularization, plunger and prefill valve; One end of described prefill valve is connected with the delivery valve of described plunger, the other end of described prefill valve is connected with fuel tank, it is characterized in that: also comprise the flange being connected with described modularization, plunger and prefill valve respectively, described flange is composed of a fixed connection by a coaxial large flange and a little flange; The sidewall of described prefill valve is provided with the connection bracket that is connected use with described little flange, at described modularization, be provided with the through hole matching with described little flange size, described little flange is placed in described through hole, between described modularization and plunger, by large flange, connects.
2. the topping up structure of hydraulic forging press according to claim 1, is characterized in that: the surrounding at described prefill valve is provided with sleeve, and one end of described sleeve is sandwiched between described little flange and modularization.
3. the topping up structure of hydraulic forging press according to claim 2, is characterized in that: the inner side at described flange is provided with sealing gasket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320468901.4U CN203409164U (en) | 2013-07-31 | 2013-07-31 | Liquid charging structure of hydraulic forging press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320468901.4U CN203409164U (en) | 2013-07-31 | 2013-07-31 | Liquid charging structure of hydraulic forging press |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203409164U true CN203409164U (en) | 2014-01-29 |
Family
ID=49972092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320468901.4U Expired - Lifetime CN203409164U (en) | 2013-07-31 | 2013-07-31 | Liquid charging structure of hydraulic forging press |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203409164U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105798101A (en) * | 2016-04-21 | 2016-07-27 | 天津市天锻压力机有限公司 | Hydraulic shock equipment special for hydraulic-forming hydraulic machine |
-
2013
- 2013-07-31 CN CN201320468901.4U patent/CN203409164U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105798101A (en) * | 2016-04-21 | 2016-07-27 | 天津市天锻压力机有限公司 | Hydraulic shock equipment special for hydraulic-forming hydraulic machine |
| CN105798101B (en) * | 2016-04-21 | 2018-02-06 | 天津市天锻压力机有限公司 | A kind of liquid-filling shaping hydraulic machine dedicated hydraulic impact device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140129 |
|
| CX01 | Expiry of patent term |