CN104763708A - Pollution indicator - Google Patents
Pollution indicator Download PDFInfo
- Publication number
- CN104763708A CN104763708A CN201510158542.6A CN201510158542A CN104763708A CN 104763708 A CN104763708 A CN 104763708A CN 201510158542 A CN201510158542 A CN 201510158542A CN 104763708 A CN104763708 A CN 104763708A
- Authority
- CN
- China
- Prior art keywords
- spring
- piston
- push rod
- interface
- joint
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B19/00—Testing; Calibrating; Fault detection or monitoring; Simulation or modelling of fluid-pressure systems or apparatus not otherwise provided for
- F15B19/005—Fault detection or monitoring
Abstract
The invention discloses a pollution indicator. The pollution indicator structurally comprises a piston component, an indication component, a first spring, a spring seat and a housing, wherein the indication component and the piston component are respectively installed in the housing in thread connection mode, a first interface is formed in the upper portion at one end of the housing, a second interface is formed in one end of the piston component, the spring seat is arranged at the other end of the piston component, one end of the fist spring is pressed against the spring seat, and the other end of the first spring is pressed against a rear cover of the indication component. The pollution indicator can keep a color change state from beginning to end after the pollution indicator moves until operating personnel performs manual reset processing, facilitates equipment maintenance and overhauling, and prevents detection leakage from occurring. Simultaneously, the number of indication colors of the pollution indicator can be designed to be two, three or larger than three.
Description
Technical field
The present invention relates to a kind of indicator, specifically a kind of alpha contamination indicator.
Background technique
Alpha contamination indicator is the important device of filtrating equipment filter core service condition in instruction hydraulic system.The alpha contamination indicator of current use mostly is automatic recovery formula hydraulic difference alpha contamination indicator, when filter core blocks to a certain extent, because differential pressure action alpha contamination indicator can send warning or variable color instruction.But this alpha contamination indicator only could produce enough pressure reduction and make alpha contamination indicator's action when hydraulic system fluid volume is larger; when hydraulic system fluid volume reduces or shut down; due to enough pressure reduction cannot be formed; alpha contamination indicator is automatically restored to normal state again, often there will be filter core and block undetected situation in hydraulic system operation and maintenance.The alpha contamination indicator simultaneously used at present mostly is double-colored instruction, cannot reflect the blocked state of filter core completely.
Summary of the invention
The object of the present invention is to provide a kind of alpha contamination indicator, after this alpha contamination indicator's action, color change state can be kept always, until operator's hand reset process, be convenient to plant maintenance and maintenance, avoid appearance undetected.The instruction color of this alpha contamination indicator can be designed to double-colored, three looks or more color as required simultaneously.
The present invention solves the technological scheme that its technical problem takes: a kind of alpha contamination indicator, its structure comprises piston assembly, indication component, the first spring, spring seat and shell, described indication component and piston assembly are installed in shell respectively by being threaded, described top, shell one end is provided with first interface, described piston assembly one end is provided with the second interface, the other end is provided with spring seat, and the first described spring one end is pressed on spring seat, and the other end is pressed on the bonnet of indication component.
Further, described piston assembly is made up of piston rod, piston sleeve, joint, attachment screw and seal ring, and described piston sleeve and joint are linked into an integrated entity by attachment screw, and described piston rod is placed in piston sleeve and joint is inner; The cavity that described piston rod and piston sleeve are formed is annular chamber, and described annular chamber is communicated with first interface; The cavity that described piston rod and joint are formed is piston cavity, described piston cavity and the second orifice; The cross-section area of piston cavity is equal with the cross-section area of annular chamber.
Further, the matching part of described piston rod and piston sleeve, piston rod and joint, piston sleeve and shell is all provided with seal ring.
Further, described indication component is made up of colour circle, overcoat, steel ball, the second spring, screw, bonnet and push rod; Have mounting hole in the middle part of described push rod, the second spring is installed in described mounting hole, a steel ball is respectively installed at the two ends of the second spring; Described push rod and steel ball, the second spring are all installed in overcoat; Described overcoat endoporus at least has a locating slot, the bonnet bearing the first spring pressure is installed on shell by screw; Described push rod is provided with and prevents push rod forwards or the rear shaft shoulder of scurrying out; Described colour circle is threadedly attached on push rod.
Further, between locating slot, between locating slot and overcoat endoporus, all rounding off is adopted.
Further, described first interface is communicated with the liquid outlet of filtrating equipment, and the second described interface is communicated with the liquid entering hole of filtrating equipment.
The invention has the beneficial effects as follows:
1, during the work of this indicator, when the steel ball on push rod moves to position, locating slot boundary or locating slot and overcoat endoporus position, boundary will there is saltus step in the color of indicator; Due to the effect of the second spring, steel ball shifts out in locating slot needs certain power, ensure that push rod can not arbitrarily move forwards or backwards; When hydraulic coupling reduces, piston rod moves under spring force afterwards, and push rod is separated with spring seat, push rod position remains unchanged, and the instruction color of alpha contamination indicator remains unchanged, until operator's hand reset process, be convenient to plant maintenance and maintenance, avoid appearance undetected.
2, the colour circle of this indicator can be set to double-colored or polychrome, shows filter core blockage more accurately by the difference of colour circle color.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of piston assembly in the present invention;
Fig. 3 is the structural representation of indication component in the present invention;
Fig. 4 is the structural representation of push rod in indication component;
Fig. 5 is the structural representation of overcoat in indication component.
In figure: 1 indication component, 11 colour circles, 12 overcoats, 121 locating slots, 13 steel balls, 14 second springs, 15 screws, 16 bonnets, 17 push rods, 171 shaft shoulders, 172 mounting holes, 2 shells, 3 piston assemblys, 31 piston rods, 32 piston sleeves, 33 attachment screws, 34 joints, 35 annular chambers, 36 piston cavity, 4 first springs, 5 spring seats, 6 first interfaces, 7 second interfaces.
Embodiment
With reference to Figure of description, a kind of alpha contamination indicator of the present invention is described in detail below.
As shown in Figure 1, a kind of alpha contamination indicator of the present invention, comprise piston assembly 3, indication component 1, first spring 4, spring seat 5 and shell 2, described indication component 1 and piston assembly 3 are installed to respectively by being threaded in shell 2, described top, shell 2 one end is provided with first interface 6, and described piston assembly 3 one end is provided with the second interface 7, and the other end is provided with spring seat 5, first described spring 4 one end is pressed on spring seat 5, and the other end is pressed on the bonnet 16 of indication component 1.Described first interface 6 is communicated with the liquid outlet of filtrating equipment, and the second described interface 7 is communicated with the liquid entering hole of filtrating equipment.First spring 4 is for the pressure reduction (pressure reduction between filtrating equipment liquid entering hole and liquid outlet) needed for the saltus step of Control pollution indicator color, and rigidity, the initial compression amount of the first spring 4 are different, and color saltus step pressure reduction is also different; Indication component be threaded into the initial compression amount that the degree of depth can be used for control spring.
As shown in Figure 2, described piston assembly 3 is made up of piston rod 31, piston sleeve 32, joint 34, attachment screw 33 and seal ring, described piston sleeve 32 is linked into an integrated entity by attachment screw 33 with joint 34, and it is inner with joint 34 that described piston rod 31 is placed in piston sleeve 32; The cavity that described piston rod 31 and piston sleeve 32 are formed is annular chamber 35, and described annular chamber 35 is communicated with first interface 6; The cavity that described piston rod 31 and joint 34 are formed is piston cavity 36, and described piston cavity 36 is communicated with the second interface 7; The cross-section area of piston cavity is equal with the cross-section area of annular chamber.Avoid producing additional hydraulic power because active area does not wait.
The matching part of described piston rod and piston sleeve, piston rod and joint, piston sleeve and shell is all provided with seal ring.
As shown in Figure 3, described indication component 1 is made up of colour circle 11, overcoat 12, steel ball 13, second spring 14, screw 15, bonnet 16 and push rod 17; As shown in Figure 4, have mounting hole 172 in the middle part of described push rod 17, side is provided with the shaft shoulder 171, is provided with the second spring 14 in described mounting hole 172, respectively installs a steel ball 13 at the two ends of the second spring 14; Described push rod 17 is all installed in overcoat with steel ball 13, second spring 14; As shown in Figure 5, described overcoat 12 endoporus at least has a locating slot 121, described steel ball 13 move to locating slot 121 have a common boundary position or locating slot and overcoat endoporus position, boundary time, flick in the effect of spring force, steel ball is rapidly moved to bottom locating slot, thus realizes the saltus step of colour circle Show Color; The bonnet bearing the first spring pressure is installed on shell by screw; Described push rod is provided with and coordinates with overcoat, bonnet and to prevent push rod forwards or the rear shaft shoulder of scurrying out; Described colour circle is threadedly attached on push rod.Equal rounding off between locating slot, between locating slot and overcoat endoporus.When steel ball moves to position, locating slot boundary or locating slot and overcoat endoporus position, boundary, flick in the effect of spring force, steel ball is rapidly moved to bottom locating slot, thus realize the saltus step of colour circle Show Color.
Because filtrating equipment liquid entering hole pressure is greater than filtrating equipment liquid outlet pressure all the time during work, outwards move at action of hydraulic force lower piston rod, until hydraulic coupling and spring force reach balance; Along with the motion of piston rod, spring seat, push rod also move thereupon, and when the steel ball on push rod moves to position, locating slot boundary or locating slot and overcoat endoporus position, boundary, the color of indicator saltus step will occur; Due to the effect of spring B, steel ball shifts out in locating slot needs certain power, ensure that push rod can not arbitrarily move forwards or backwards; When hydraulic coupling reduces, piston rod moves under spring force afterwards, and push rod is separated with spring seat, and push rod position remains unchanged, and the instruction color of alpha contamination indicator remains unchanged.
The above, just explain through diagrams principles more of the present invention, this specification be not the present invention to be confined to shown in described concrete structure and Applicable scope, therefore every corresponding modify of being likely utilized and equivalent, all belong to the scope of the claims that the present invention applies for.
Except technical characteristics described in specification, all the other technical characteristicss are those skilled in the art's known technology.
Claims (6)
1. an alpha contamination indicator, it is characterized in that, comprise piston assembly, indication component, the first spring, spring seat and shell, described indication component and piston assembly are installed in shell respectively by being threaded, described top, shell one end is provided with first interface, and described piston assembly one end is provided with the second interface, and the other end is provided with spring seat, the first described spring one end is pressed on spring seat, and the other end is pressed on the bonnet of indication component.
2. a kind of alpha contamination indicator according to claim 1, it is characterized in that, described piston assembly is made up of piston rod, piston sleeve, joint, attachment screw and seal ring, described piston sleeve and joint are linked into an integrated entity by attachment screw, and described piston rod is placed in piston sleeve and joint is inner; The cavity that described piston rod and piston sleeve are formed is annular chamber, and described annular chamber is communicated with first interface; The cavity that described piston rod and joint are formed is piston cavity, described piston cavity and the second orifice; The cross-section area of piston cavity is equal with the cross-section area of annular chamber.
3. a kind of alpha contamination indicator according to claim 2, is characterized in that, the matching part of described piston rod and piston sleeve, piston rod and joint, piston sleeve and shell is all provided with seal ring.
4. a kind of alpha contamination indicator according to claim 1, is characterized in that, described indication component is made up of colour circle, overcoat, steel ball, the second spring, screw, bonnet and push rod; Have mounting hole in the middle part of described push rod, side is provided with the shaft shoulder, is provided with the second spring in described mounting hole, respectively installs a steel ball at the two ends of the second spring; Described push rod and steel ball, the second spring are all installed in overcoat; Described overcoat endoporus at least has a locating slot, the bonnet bearing the first spring pressure is installed on shell by screw; Described push rod is provided with and prevents push rod forwards or the rear shaft shoulder of scurrying out; Described colour circle is threadedly attached on push rod.
5. a kind of alpha contamination indicator according to claim 4, is characterized in that, between locating slot, between locating slot and overcoat endoporus, all adopt rounding off.
6. a kind of alpha contamination indicator according to claim 1, is characterized in that, described first interface is communicated with the liquid outlet of filtrating equipment, and the second described interface is communicated with the liquid entering hole of filtrating equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510158542.6A CN104763708B (en) | 2015-04-03 | 2015-04-03 | A kind of alpha contamination indicator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510158542.6A CN104763708B (en) | 2015-04-03 | 2015-04-03 | A kind of alpha contamination indicator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104763708A true CN104763708A (en) | 2015-07-08 |
| CN104763708B CN104763708B (en) | 2017-01-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510158542.6A Active CN104763708B (en) | 2015-04-03 | 2015-04-03 | A kind of alpha contamination indicator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104763708B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107642520A (en) * | 2017-10-20 | 2018-01-30 | 新乡市华航航空液压设备有限公司 | A kind of synchronous alarm bypass group indicater structure |
| CN112628588A (en) * | 2020-12-02 | 2021-04-09 | 北京动力机械研究所 | Lubricating oil filtering device suitable for long-time work of turbofan engine |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2099150A (en) * | 1981-05-19 | 1982-12-01 | Unima Masch Gmbh | Pressure differential indicator |
| CN2165912Y (en) * | 1993-05-03 | 1994-05-25 | 翁继祖 | Filtering state & dynamic state detecting device for filter |
| CN1116767A (en) * | 1994-04-06 | 1996-02-14 | 曼及胡梅尔过滤器工厂有限公司 | Pressure differential switch and/or pressure differential indicator in which servo piston is controlled by offsetting spring |
| DE10127021C1 (en) * | 2001-06-01 | 2003-02-20 | Hydac Filtertechnik Gmbh | Filter element soiling level indication device detects movement of spring-loaded piston subjected to pressures of hydraulic oil on dirty and clean sides of filter on opposite sides |
| CN101507888A (en) * | 2009-02-27 | 2009-08-19 | 洛阳航峰自动化设备有限公司 | Double-monitor filter |
| CN203002089U (en) * | 2013-01-11 | 2013-06-19 | 新乡平原航空液压设备有限公司 | Differential pressure pinger |
| CN204553424U (en) * | 2015-04-03 | 2015-08-12 | 山东省聊城市中矿机械有限公司 | A kind of alpha contamination indicator |
-
2015
- 2015-04-03 CN CN201510158542.6A patent/CN104763708B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2099150A (en) * | 1981-05-19 | 1982-12-01 | Unima Masch Gmbh | Pressure differential indicator |
| CN2165912Y (en) * | 1993-05-03 | 1994-05-25 | 翁继祖 | Filtering state & dynamic state detecting device for filter |
| CN1116767A (en) * | 1994-04-06 | 1996-02-14 | 曼及胡梅尔过滤器工厂有限公司 | Pressure differential switch and/or pressure differential indicator in which servo piston is controlled by offsetting spring |
| DE10127021C1 (en) * | 2001-06-01 | 2003-02-20 | Hydac Filtertechnik Gmbh | Filter element soiling level indication device detects movement of spring-loaded piston subjected to pressures of hydraulic oil on dirty and clean sides of filter on opposite sides |
| CN101507888A (en) * | 2009-02-27 | 2009-08-19 | 洛阳航峰自动化设备有限公司 | Double-monitor filter |
| CN203002089U (en) * | 2013-01-11 | 2013-06-19 | 新乡平原航空液压设备有限公司 | Differential pressure pinger |
| CN204553424U (en) * | 2015-04-03 | 2015-08-12 | 山东省聊城市中矿机械有限公司 | A kind of alpha contamination indicator |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107642520A (en) * | 2017-10-20 | 2018-01-30 | 新乡市华航航空液压设备有限公司 | A kind of synchronous alarm bypass group indicater structure |
| CN112628588A (en) * | 2020-12-02 | 2021-04-09 | 北京动力机械研究所 | Lubricating oil filtering device suitable for long-time work of turbofan engine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104763708B (en) | 2017-01-04 |
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