CN204961459U - Hydraulic nut running state monitors hydraulic system - Google Patents
Hydraulic nut running state monitors hydraulic system Download PDFInfo
- Publication number
- CN204961459U CN204961459U CN201520625876.5U CN201520625876U CN204961459U CN 204961459 U CN204961459 U CN 204961459U CN 201520625876 U CN201520625876 U CN 201520625876U CN 204961459 U CN204961459 U CN 204961459U
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- China
- Prior art keywords
- hydraulic nut
- hydraulic
- pressure
- selector valve
- individual
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- Expired - Fee Related
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Abstract
The utility model discloses a hydraulic nut running state monitors hydraulic system belongs to hydraulic nut's applied control technology. Including (n+2) individual hydraulic nut and (n+1) individual switching -over valve, pressure -measuring opening first, a second hydraulic nut is connected respectively to two oil inlets of first switching -over valve, two oil inlets of (n+1) individual switching -over valve connect respectively a n switching -over valve the oil -out and to (n+2) individual hydraulic nut's pressure -measuring opening, be connected with manometer and pressure sensor on the oil -out of (n+1) individual switching -over valve. The utility model is suitable for a plurality of hydraulic nut's operational monitoring uses a plurality of switching -over valves to accomplish the comparison to these hydraulic nut internal pressures to reach minimum pressure value. The utility model discloses the intensity of labour of greatly reduced maintainer provides good operational monitoring data to hydraulic nut fastening system under extreme condition or the high -risk operation environment, guarantees the reliability of fastening system.
Description
Technical field
The utility model relates to a kind of hydraulic nut, specifically a kind of hydraulic nut monitoring running state hydraulic system.
Background technique
Along with the progress of Large-Scale Equipment manufacturing technology, its package size and working parameters etc. constantly increase and improve, and need larger nut to be used for fastening relevant component.Hydraulic nut, as a kind of novel fastening piece, utilizes pressure energy to realize comparatively greatly and is easy to the pretightening force of control, obtaining and apply very widely in the industries such as mine, metallurgy, petrochemical industry, nuclear power.
In the actual using process of hydraulic nut, as long as ensure the pressure of its inside, just can ensure enough pretightening forces.Such as, but due to some cause specifics, the leakage of fluid, the reduction of temperature, vibration equipment etc., the fastening inefficacy of hydraulic nut happens occasionally.The pretightening force of hydraulic nut is very big, once fastening inefficacy, likely causes and needs getting loose of fastenings, causes the consequence that equipment damage etc. is very serious.
In current existing technological scheme, the way of the artificial regular check of some employings.Utilize pressure tap reserved on hydraulic nut, use the relevant measurers such as pressure gauge to record its internal pressure.Once find that the pressure of hydraulic nut reduces, use the timely ftercompction of high pressure fuel source.This way shortcoming is that personnel labor intensity is large, and severe or dangerous situation seems that particularly difficulty even cannot realize at some high temperature etc.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art, the utility model provides a kind of hydraulic nut monitoring running state hydraulic system.
The technological scheme that the utility model adopts is: a kind of hydraulic nut monitoring running state hydraulic system, and comprise (n+2) individual hydraulic nut and (n+1) individual selector valve, wherein n is the integer of more than 1; Described selector valve can compare the pressure of two inlet openings and delivery outlet exports the three-position three way hydraulic selector valve of wherein less pressure; A filler opening of first described selector valve is connected to the pressure tap of first hydraulic nut, and another filler opening is connected to the pressure tap of second hydraulic nut; A filler opening of described (n+1) individual selector valve is connected to the oil outlet of the n-th selector valve, and another filler opening is connected to the pressure tap of (n+2) individual hydraulic nut; The oil outlet of described (n+1) individual selector valve is connected with pressure gauge.
It is further: the oil outlet of described (n+1) individual selector valve is connected with pressure transducer.
The liquid controling cavity at described selector valve two ends is connected on a filler opening respectively.
Described n is the integer within 1 to 15.
The utility model is applicable to the operational monitoring of multiple hydraulic nut, uses the selector valve of fewer than hydraulic nut one to complete comparison to these hydraulic nut internal pressures, and draws minimum force value.The oil outlet of last selector valve is connected with pressure transducer with pressure gauge respectively by associated pipe.Compared with prior art, the beneficial effects of the utility model are: the labor intensity greatly reducing maintainer, especially under mal-condition or high-risk operations environment, for hydraulic nut fastening system provides good operational monitoring data, improve the reliability of fastening system.
Accompanying drawing explanation
Fig. 1 is the utility model schematic diagram;
Fig. 2 is the schematic diagram that the utility model is applied in the fastening schemes of three hydraulic nuts.
Embodiment
Be below a specific embodiment of the present utility model, existing the utility model is described in further detail by reference to the accompanying drawings.
Embodiment 1
As shown in Figure 1, a kind of hydraulic nut monitoring running state hydraulic system, comprise (n+2) individual hydraulic nut and (n+1) individual selector valve, wherein n is the integer of more than 1; Selector valve is a three-position three way hydraulic selector valve having two filler opening A, a B and oil outlet C, and it can compare the pressure of two inlet openings and export wherein less pressure, and the liquid controling cavity at selector valve two ends is connected on corresponding filler opening A or B respectively; First selector valve V
1a filler opening A be connected to first hydraulic nut P
1pressure tap, another filler opening B is connected to second hydraulic nut P
2pressure tap; (n+1) individual selector valve V
n+1a filler opening A be connected to the n-th selector valve V
noil outlet C, another filler opening B is connected to (n+2) individual hydraulic nut P
n+2pressure tap; Described (n+1) individual selector valve V
n+1oil outlet C on be connected with pressure gauge 1 and pressure transducer 2 by pipeline.
The working principle of three-position three way hydraulic selector valve is: when A mouth pressure is than B mouth pressure height, spool moves right, and B mouth is connected with C mouth; When B mouth pressure is than A mouth pressure height, spool is moved to the left, and A mouth is connected with C mouth.Lower one of working pressure in two inlet openings that the C mouth of three-position three way hydraulic selector valve exports, simultaneously as the input signal of next three-position three way hydraulic selector valve.Maintainer can obtain minimum one of working pressure all hydraulic nut from pressure gauge 1.If needed, also controller etc. can be given by pressure transducer 2 by Minimum operating pressure signal.
When finding minimum pressure lower than the value allowed, maintainer can check all hydraulic nuts, to find out that hydraulic nut of Minimum operating pressure, timely supplementary pressure.
Embodiment 2
As shown in Figure 2, when n equals 1, be the embodiment that the utility model is applied in the fastening schemes of three hydraulic nuts.It comprises 3 hydraulic nuts and 2 selector valves; Selector valve is a three-position three way hydraulic selector valve having two filler opening A, a B and oil outlet C, and it can compare the pressure of two inlet openings and export wherein less pressure, and the liquid controling cavity at selector valve two ends is connected on corresponding filler opening A or B respectively; First selector valve V
1a filler opening A be connected to first hydraulic nut P
1pressure tap, another filler opening B is connected to second hydraulic nut P
2pressure tap; Second selector valve V
2a filler opening A be connected to first selector valve V
1oil outlet C, another filler opening B is connected to the 3rd hydraulic nut P
3pressure tap; Described second selector valve V
2oil outlet C on be connected with pressure gauge 1 and pressure transducer 2 by pipeline.
Embodiment 3
When n equals 2, be the embodiment that the utility model is applied in the fastening schemes of four hydraulic nuts.It comprises 4 hydraulic nuts and 3 selector valves; Selector valve is a three-position three way hydraulic selector valve having two filler opening A, a B and oil outlet C, and it can compare the pressure of two inlet openings and export wherein less pressure, and the liquid controling cavity at selector valve two ends is connected on corresponding filler opening A or B respectively; First selector valve V
1a filler opening A be connected to first hydraulic nut P
1pressure tap, another filler opening B is connected to second hydraulic nut P
2pressure tap; Second selector valve V
2a filler opening A be connected to first selector valve V
1oil outlet C, another filler opening B is connected to the 3rd hydraulic nut P
3pressure tap; 3rd selector valve V
3a filler opening A be connected to the 2nd selector valve V
2oil outlet C, another filler opening B is connected to the 4th hydraulic nut P
4pressure tap; Second selector valve V
3oil outlet C on be connected with pressure gauge 1 and pressure transducer 2 by pipeline.
Claims (4)
1. a hydraulic nut monitoring running state hydraulic system, is characterized in that: comprise (n+2) individual hydraulic nut and (n+1) individual selector valve, wherein n is the integer of more than 1; Described selector valve be can compare two inlet openings pressure and export the three-position three way hydraulic selector valve of wherein less pressure; A filler opening of first described selector valve is connected to the pressure tap of first hydraulic nut, and another filler opening is connected to the pressure tap of second hydraulic nut; A filler opening of described (n+1) individual selector valve is connected to the oil outlet of the n-th selector valve, and another filler opening is connected to the pressure tap of (n+2) individual hydraulic nut; The oil outlet of described (n+1) individual selector valve is connected with pressure gauge.
2. hydraulic nut monitoring running state hydraulic system according to claim 1, is characterized in that: the oil outlet of described (n+1) individual selector valve is connected with pressure transducer.
3. hydraulic nut monitoring running state hydraulic system according to claim 1, is characterized in that: the liquid controling cavity at described selector valve two ends is connected on a filler opening respectively.
4. hydraulic nut monitoring running state hydraulic system according to claim 1, is characterized in that: described n is the integer within 1 to 15.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520625876.5U CN204961459U (en) | 2015-08-19 | 2015-08-19 | Hydraulic nut running state monitors hydraulic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520625876.5U CN204961459U (en) | 2015-08-19 | 2015-08-19 | Hydraulic nut running state monitors hydraulic system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204961459U true CN204961459U (en) | 2016-01-13 |
Family
ID=55056529
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520625876.5U Expired - Fee Related CN204961459U (en) | 2015-08-19 | 2015-08-19 | Hydraulic nut running state monitors hydraulic system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204961459U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110501153A (en) * | 2019-08-28 | 2019-11-26 | 燕山大学 | A kind of nut loosening monitoring device for section roll |
-
2015
- 2015-08-19 CN CN201520625876.5U patent/CN204961459U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110501153A (en) * | 2019-08-28 | 2019-11-26 | 燕山大学 | A kind of nut loosening monitoring device for section roll |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160113 Termination date: 20160819 |