CN202348836U - Prepressing balance device for pressure detection oil cylinder - Google Patents
Prepressing balance device for pressure detection oil cylinder Download PDFInfo
- Publication number
- CN202348836U CN202348836U CN2011204887340U CN201120488734U CN202348836U CN 202348836 U CN202348836 U CN 202348836U CN 2011204887340 U CN2011204887340 U CN 2011204887340U CN 201120488734 U CN201120488734 U CN 201120488734U CN 202348836 U CN202348836 U CN 202348836U
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- China
- Prior art keywords
- pressure
- oil cylinder
- oil
- cylinder
- pressure detection
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- Expired - Lifetime
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Abstract
The utility model relates to a prepressing balance device for a pressure detection oil cylinder. The oil outlet pipeline of the prepressing balance device is connected with the oil inlet pipeline of the pressure detection oil cylinder; the prepressing balance device comprises an air inlet pipeline, a pressure release valve, a pneumatic and hydraulic conversion cylinder and a balance valve which are connected in sequence; the balance valve is connected to the oil outlet pipeline; and the prepressing balance device for the pressure detection oil cylinder also comprises a pressure sensor which is arranged at the oil outlet pipeline or the oil inlet pipeline of the pressure detection cylinder. By using the prepressing balance device for the pressure detection oil cylinder, the pressure value of compressed air which enters the pneumatic and hydraulic conversion cylinder is constant; and the pressure senor arranged at the oil outlet pipeline or the oil inlet pipeline of the pressure detection cylinder can monitor the situation of the oil pressure in the pressure detection oil cylinder in real time; after the pressing operation of a pressing machine is finished, the consumption value of the oil pressure in the pressure detection oil cylinder and the pipelines can be compensated by opening the balance valve, so that the oil pressure in the loop of the pressure detection oil cylinder is restored to a set value. By using the prepressing balance device for the pressure detection oil cylinder, the quality of powder pressing products can be guaranteed; the monitoring is proactive; the work efficiency is improved; and the yield of products is increased.
Description
Technical field
The utility model belongs to control general fluid work system; Fluid pressure actuator is like servomotor; Exclude the technical field of the hydrodynamic pressure parts of other type, particularly a kind ofly detect in the oil cylinder oil pressure and reflect actual press power through monitor force, pilot pressure detects the Pressure testing oil cylinder precompressed Equilibrator that the precompression of oil cylinder remains unchanged.
Background technique
Along with improving constantly of powder compacting industry automaticity, to precision require increasingly highly, and then also increasingly high to the requirement of equipment, equipment component is realized piling up whole automations from being pressed in process of production.In order to improve the up-to-standard rate of product, must monitor whole process of production, to reach higher up-to-standard rate.
Yet because in the course of the work, the hydraulic oil in the Pressure testing oil cylinder can be along with the carrying out loss to some extent of operation; If cause not replenishing timely hydraulic oil because monitoring is untimely; When the identical powder of compacting volume, the pressure of press can descend, and makes the result of compacting produce deviation; This will directly have influence on the quality of product, even reduce the up-to-standard rate of product.
The model utility content
The technical problem that the utility model solves is; Owing to there is not appropriate mode pilot pressure to detect the refueling time point of hydraulic oil in the oil cylinder in the existing technology; And cause may be because of after press compacting operation; Hydraulic oil in the Pressure testing oil cylinder is because loss and then when detecting the identical pulverulent product of compacting volume, can not accurately reflect actual press power to some extent; Downtrodden quality of product does not pass a test, the problem that working efficiency is low, and then a kind of Pressure testing oil cylinder precompressed Equilibrator of optimizing structure is provided.
The technological scheme that the utility model adopted is; A kind of Pressure testing oil cylinder precompressed Equilibrator; The flowline of said Pressure testing oil cylinder precompressed Equilibrator is connected with the oil-piping of going into of Pressure testing oil cylinder; Said precompressed Equilibrator comprises admission line, reduction valve, gas-liquid conversion cylinder and the equilibrium valve that connects in order, and said equilibrium valve is connected to flowline; Said Pressure testing oil cylinder precompressed Equilibrator also comprises pressure transducer, and what said pressure transducer was located at flowline place or Pressure testing oil cylinder goes into the oil-piping place.
Preferably, said pressure transducer also is connected with a warning device.
The utility model provides a kind of Pressure testing oil cylinder precompressed Equilibrator of optimizing structure; Through before the Pressure testing oil cylinder, setting up the Pressure testing oil cylinder precompressed Equilibrator that a cover has comprised admission line, reduction valve, gas-liquid conversion cylinder and equilibrium valve; Make that the compressed air pressure value that gets into the gas-liquid conversion cylinder is constant; And at the flowline place or the oil-piping place of going into of Pressure testing oil cylinder pressure transducer is set, make pressure transducer in real time monitor force detect the oil pressure situation in the oil cylinder; After the compacting end of job of press; Cause because of the loss of hydraulic oil that oil pressure diminishes in the Pressure testing oil cylinder; Can the equilibrium valve of precompressed Equilibrator be opened, supplementary pressure detects the consumption figures of oil pressure in oil cylinder and the pipeline, makes that the oil pressure in the Pressure testing oil cylinder loop returns to setting value; The utility model has guaranteed the quality of the product of powder compaction, makes that monitoring is more positive, and working efficiency improves, and yield rate rises.
Description of drawings
Fig. 1 is the structural representation of precompressed Equilibrator in the utility model;
Fig. 2 is the structural representation of Pressure testing oil cylinder in the utility model.
Embodiment
Below in conjunction with embodiment the utility model is done further detailed description, but the protection domain of the utility model is not limited to this.
As shown in the figure; The utility model relates to a kind of Pressure testing oil cylinder precompressed Equilibrator; The flowline 1 of said Pressure testing oil cylinder precompressed Equilibrator is connected with the oil-piping 3 of going into of Pressure testing oil cylinder 2; Said precompressed Equilibrator comprises admission line 4, reduction valve 5, gas-liquid conversion cylinder 6 and the equilibrium valve 7 that connects in order, and said equilibrium valve 7 is connected to flowline 1; Said Pressure testing oil cylinder precompressed Equilibrator also comprises pressure transducer 8, and what said pressure transducer 8 was located at flowline 1 place or Pressure testing oil cylinder 2 goes into oil-piping 3 places.
Said pressure transducer 8 also is connected with a warning device.
The working principle of the utility model is: because in the pressing process of powder compaction product; It is fixed dashing down; Upward always fix towards the position of each compacting; So adopted method, and the precompression of pilot pressure detection oil cylinder 2 remains unchanged through Pressure testing oil cylinder 2 reaction press powers; So, as long as the weight of product is constant, pressure just can not change.
The workflow of the utility model is: before the utility model begins life's work; Pressurized air is got in the Pressure testing oil cylinder precompressed Equilibrator by admission line 4; Through pressure being adjusted to using scope behind the reduction valve 5, promptly with Pressure testing oil cylinder 2 in initial correct oil pressure consistent; Pressurized air behind the adjustment pressure gets into gas-liquid conversion cylinder 6, in gas-liquid conversion cylinder 6, pressurized air is converted into hydraulic oil and output, arrives equilibrium valve 7; Equilibrium valve 7 is opened, and oiling in Pressure testing oil cylinder 2 when oiling satisfies condition, is closed equilibrium valve 7; When the utility model begins life's work; Press power dashes on the piston 9 that is delivered in the Pressure testing oil cylinder 2 through going up of press; The hydraulic oil of piston 9 compression work part, because pressure transducer 8 is connected with the oil-piping 3 of going into of Pressure testing oil cylinder 2, the machinery oil of going into oil-piping 3 and piston 9 agency parts is UNICOMs; So oil pressure equates that pressure transducer 8 can show the press power of compacted products at that time; When the compacting end of job; After monitoring the hydraulic oil of piston 9 agency parts of Pressure testing oil cylinder 2 build-up of pressure sensor 8 showing that pressure descend because produce loss; Open equilibrium valve 7; Promptly make the hydraulic oil of piston 9 agency parts and the hydraulic oil UNICOM in the gas-liquid conversion cylinder 6 in the Pressure testing oil cylinder 2, because the compressed-air actuated force value that gets in the gas-liquid conversion cylinder 6 is constant, so the hydraulic fluid pressure in the gas-liquid conversion cylinder 6 also is constant; Can guarantee that finally gas-liquid conversion cylinder 6 and Pressure testing oil cylinder 2 interior hydraulic fluid pressure values equate, can continue to accomplish the work of Pressure testing.
The utility model can also be set up a warning device on pressure transducer 8, when the monitor staff does not in time find the low excessively situation of hydraulic pressure, reported to the police by warning device, reminds the monitor staff as early as possible equilibrium valve 7 to be opened and adjusts.In the utility model, warning device can be a sound alarm equipment, can also be beacon.
The utility model is through setting up the Pressure testing oil cylinder precompressed Equilibrator that a cover has comprised admission line 4, reduction valve 5, gas-liquid conversion cylinder 6 and equilibrium valve 7 before the Pressure testing oil cylinder 2 of routine; Make that the compressed air pressure value that gets into gas-liquid conversion cylinder 6 is constant; And at oil-piping 3 places of going into of flowline 1 or Pressure testing oil cylinder 2 pressure transducer 8 is set, make pressure transducer 8 in real time monitor force detect the oil pressure situation in the oil cylinder 2; After each compacting the equilibrium valve 7 of Pressure testing oil cylinder precompressed Equilibrator is opened, supplementary pressure detects the consumption figures of oil pressure in the oil cylinder 2, makes Pressure testing oil cylinder 2 continue normal monitoring press and normally accomplishes the compacting operation.
The utility model has solved loss after the hydraulic oil in the Pressure testing oil cylinder 2 has passed through the work of certain number of times and has caused and when the powder of compacting equal volume, influence the problem of testing precision owing to descending gradually of oil pressure; Guaranteed the quality of the product of powder compaction; Feasible monitoring is more positive; Working efficiency improves, and yield rate rises.
Claims (2)
1. Pressure testing oil cylinder precompressed Equilibrator; The flowline of said Pressure testing oil cylinder precompressed Equilibrator is connected with the oil-piping of going into of Pressure testing oil cylinder; It is characterized in that: said precompressed Equilibrator comprises admission line, reduction valve, gas-liquid conversion cylinder and the equilibrium valve that connects in order, and said equilibrium valve is connected to flowline; Said Pressure testing oil cylinder precompressed Equilibrator also comprises pressure transducer, and what said pressure transducer was located at flowline place or Pressure testing oil cylinder goes into the oil-piping place.
2. a kind of Pressure testing oil cylinder precompressed Equilibrator according to claim 1, it is characterized in that: said pressure transducer also is connected with a warning device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204887340U CN202348836U (en) | 2011-11-30 | 2011-11-30 | Prepressing balance device for pressure detection oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204887340U CN202348836U (en) | 2011-11-30 | 2011-11-30 | Prepressing balance device for pressure detection oil cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202348836U true CN202348836U (en) | 2012-07-25 |
Family
ID=46537843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204887340U Expired - Lifetime CN202348836U (en) | 2011-11-30 | 2011-11-30 | Prepressing balance device for pressure detection oil cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202348836U (en) |
-
2011
- 2011-11-30 CN CN2011204887340U patent/CN202348836U/en not_active Expired - Lifetime
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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: 20120725 |
|
| CX01 | Expiry of patent term |