CN203441871U - Liquid level detection device for hydraulic system - Google Patents
Liquid level detection device for hydraulic system Download PDFInfo
- Publication number
- CN203441871U CN203441871U CN201320441404.5U CN201320441404U CN203441871U CN 203441871 U CN203441871 U CN 203441871U CN 201320441404 U CN201320441404 U CN 201320441404U CN 203441871 U CN203441871 U CN 203441871U
- Authority
- CN
- China
- Prior art keywords
- oil
- liquid level
- sealing guide
- level detection
- guide sleeve
- 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.)
- Expired - Lifetime
Links
Images
Landscapes
- Level Indicators Using A Float (AREA)
Abstract
The utility model provides a liquid level detection device for a hydraulic system. The liquid level detection device comprises an oil tank and a liquid level detection mechanism which is arranged in the oil tank, wherein the liquid level detection mechanism comprises a sealing guide sleeve and a floating ball which is arranged in the sealing guide sleeve; oil through holes which are communicated with the sealing guide sleeve are axially distributed at the bottom closing end of the sealing guide sleeve; a liquid level switch is arranged on the top of the sealing guide sleeve. Thus, oil enters conveniently by immersing the oil through holes of the sealing guide sleeve in the oil, so that the rising or dropping of the floating ball is guaranteed on the premise that the thickness of the oil meets the oil separation requirement, and the induction switch can accurately and reliably send an induction signal. Accordingly, a normal oil level signal or a low-level signal is emitted from a self-control system, the normal work of the oil level of the hydraulic system is guaranteed, or a pump motor is powered off to stop work through the control system so as to perform timely maintenance, and the accident of damage to the machine which is frequently caused by abnormal work of the system is effectively prevented. The problems of high probability of adhesion of the level float contact points of the conventional oil level detection mechanism and inaccurate feedback signal are solved.
Description
Technical field
The utility model relates to a kind of liquid level detecting device for hydraulic system.
Background technique
Liquid level detection device is the important component part of hydraulic system, and its Main Function is when system fluid oil level is normal, and switch sends normal oil level signal to control system, and indicator solution pressing system can work; When due to problems such as hydraulic system leakage, oil pipe breakages, while causing fuel tank inner fluid disappearance oil level to decline, switch sends trouble signal that oil level is low to control system, thereby effectively prevents that hydraulic system from working losing under oil condition, reliably avoids system to cause operation irregularity and parts damages because of oil starvation.Its significance is apparent.
Be applied at present hydraulic system dry reed-pipe induction type oil level float liquid level detection device and conventionally have lower column defects: because the fluid in fuel tank is as a rule all under normal oil level state; contact sticks together in closed state for a long time because being subject to induction; while occurring that liquid level changes; contact can not be thrown off in time and caused signal feed back not in time; cause oil level switch to lose detectability, can not play normal protection and prevention effect.Therefore must seek a kind of stable, reliable liquid level detection device substitutes.
Summary of the invention
In view of above-mentioned technology status, the utility model provides a kind of hydraulic system liquid level detection device for achieving the above object, thereby has effectively prevented that hydraulic system from working losing under oil condition.
Technical solution of the present utility model is: a kind of hydraulic system liquid level detection device, comprises fuel tank, and be arranged on the liquid level feeler mechanism in fuel tank; Wherein said liquid level feeler mechanism, comprises sealing guide pin bushing, and is located at the ball float in sealing guide pin bushing, in the axial distribution of described sealing guide pin bushing back cover end, has and the oil through of sealing guide pin bushing conducting, is positioned at sealing guide pin bushing top and is provided with liquid-level switch.Therefore, by sealing guide pin bushing oil through longitudinally, invade in fluid and facilitated entering of fluid, fluid thickness is being met under the prerequisite of oil removal, while guaranteeing that the normal ball float of oil level rises to peak, induction switch can accurately and reliably send induced signal.
During this is novel, related liquid-level switch is capacitive approach switch.
During this is novel, in described seal guide sleeve outside, by adhesive layer, be fixedly connected with packing ring, by packing ring, be fixedly connected with fuel tank end face.
Further, between described packing ring and fuel tank end face, be provided with O-ring seal.
The good effect the utlity model has is:
1) good airproof performance of approach switch own, has very high defensive ability/resistance ability to periphery dust, moisture, and self testing signal ability is very reliable, long service life, and seldom there is signal in self.
2) this oil level beginning is very sensitive, reliable to the detection of oil level.Proximity beginning probe induction region is B≤15mm, when ball float changes not at induction region because of liquid level, approaches that beginning loses induction to metal ball float at once and to feed back oil level low.
3) special metal floater seal is good, lightweight, and buoyancy is large, is quick on the draw, can the lifting with the lifting of fluid reliably.
Accompanying drawing explanation
Fig. 1 is this new structure schematic diagram.
Embodiment
Below in conjunction with accompanying drawing embodiment, the utility model is described in further detail.
Hydraulic system liquid level detection device as shown in Figure 1, comprises fuel tank 7, and is arranged on the liquid level feeler mechanism in fuel tank.Liquid level feeler mechanism described in the present embodiment, comprises sealing guide pin bushing 3, and is located at the ball float 4 sealing in guide pin bushing 3, has and seal the oil through 5 of guide pin bushing 3 conductings in the axial distribution of described sealing guide pin bushing 3 back cover ends, is positioned at sealing guide pin bushing 3 tops and is provided with liquid-level switch 1.During installation, sealing guide pin bushing 3 outsides are fixedly connected with fuel tank 7 end faces by packing ring 6, and are provided with O-ring seal 8 between described packing ring 6 and fuel tank 7 end faces in being fixedly connected with and inserting fuel tank 7 by adhesive layer 2 with packing ring 6, prevent from revealing.Ball float 4 described in the present embodiment is hollow metal ball floats; Sealing guide pin bushing 3 adopts nonmetal oil resisting material to make, and can avoid induced signal disorderly; And liquid-level switch 1 is capacitive approach switch.Like this, make to seal 1 of guide pin bushing 3 and liquid-level switch and form complete separation layer.Its thickness is meeting under the prerequisite of oil removal, and while guaranteeing that the normal ball float 4 of oil level rises to peak, capacitive approach switch can accurately and reliably send induced signal.When fuel tank 7 hydraulic system oil levels are when normal, ball float 4 floats up to sealing guide pin bushing 3 tops with fluid under floating function, there is induction and to control system, one oil level normal signal occur in the liquid-level switch 1 that at this moment top is installed, indication mechanism oil level is normal, can normally carry out work with ball float 4.When system, losing oil causes fuel tank inner fluid to reduce, when oil level declines, ball float 4 declines with fluid, and at this moment, the liquid-level switch 1 that is installed on top departs from induction with ball float 4, thereby send oil level low signal from control system, control system is by pump motor power-off, and hydraulic system can not be worked, and points out staff's check system leak site, and carry out on-call maintenance, effectively prevent that system works is abnormal and occur engine-damaged accident.
In actual motion, this is novel has simple in structurely, detects reliable performance, highly sensitive, overall target significantly reduces higher than other relevant oil level detection product repairing workloads and maintenance cost, has effectively guaranteed safe, the normally operation of equipment, has good application value.
Claims (4)
1. a hydraulic system liquid level detection device, comprises fuel tank, and is arranged on the liquid level feeler mechanism in fuel tank; It is characterized in that, described liquid level feeler mechanism, comprise sealing guide pin bushing (3), and be located at the ball float (4) in sealing guide pin bushing (3), axial distribution at described sealing guide pin bushing (3) back cover end has and the oil through (5) that seals guide pin bushing conducting, is positioned at sealing guide pin bushing (3) top and is provided with liquid-level switch (1).
2. hydraulic system liquid level detection device according to claim 1, is characterized in that, described liquid-level switch (1) is capacitive approach switch.
3. hydraulic system liquid level detection device according to claim 1, is characterized in that, in described sealing guide pin bushing (3) outside, by adhesive layer (2), is fixedly connected with packing ring (6), by packing ring (6), is fixedly connected with fuel tank (7) end face.
4. hydraulic system liquid level detection device according to claim 1, is characterized in that, between described packing ring (6) and fuel tank (7) end face, is provided with O-ring seal (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320441404.5U CN203441871U (en) | 2013-07-24 | 2013-07-24 | Liquid level detection device for hydraulic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320441404.5U CN203441871U (en) | 2013-07-24 | 2013-07-24 | Liquid level detection device for hydraulic system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203441871U true CN203441871U (en) | 2014-02-19 |
Family
ID=50092930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320441404.5U Expired - Lifetime CN203441871U (en) | 2013-07-24 | 2013-07-24 | Liquid level detection device for hydraulic system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203441871U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103994669A (en) * | 2014-05-29 | 2014-08-20 | 上海森松制药设备工程有限公司 | Sanitation level mechanical sealing liquid condensing device and use method |
-
2013
- 2013-07-24 CN CN201320441404.5U patent/CN203441871U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103994669A (en) * | 2014-05-29 | 2014-08-20 | 上海森松制药设备工程有限公司 | Sanitation level mechanical sealing liquid condensing device and use method |
| CN103994669B (en) * | 2014-05-29 | 2017-02-15 | 上海森松制药设备工程有限公司 | Sanitation level mechanical sealing liquid condensing device and use method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102980017B (en) | Rapid oil change system | |
| CN203441871U (en) | Liquid level detection device for hydraulic system | |
| CN205316015U (en) | Lubricated oil feeding system's of oil gas controlling means | |
| CN102225711A (en) | Liquid reservoir for mechanically sealed flushing system | |
| CN204396190U (en) | A kind of horizontal type scraper centrifuger rear bearing sealing device | |
| CN207123766U (en) | A kind of Floating Ball Liquid Level alarm control unit | |
| CN208651255U (en) | Pump multi-level gland seal device | |
| CN104008858A (en) | Fake-oil-level-preventing capsule-type transformer oil conservator | |
| CN213598313U (en) | Simple oil leakage alarm device for hydraulic oil tank | |
| CN207438160U (en) | A kind of gate valve leak detection apparatus and pipe-line system | |
| CN203414191U (en) | Online plugging thermal resistor | |
| CN105179220A (en) | Main pump shaft seal water leakage monitoring device | |
| CN204165622U (en) | Liquid level detection device and battery automatic filling machine | |
| CN203881410U (en) | Pneumatic liquid level measurement control switch | |
| CN204827892U (en) | Monitoring main pump bearing seal device that leaks | |
| CN204154238U (en) | A kind of device detecting pipeline scaling thickness | |
| CN109681613B (en) | Mining speed reducer bearing end cover and mining speed reducer | |
| CN206377055U (en) | Built-up shaft pressure cap | |
| CN204705443U (en) | A kind of for detecting the device carrying and leak in the solenoid valve of position | |
| CN104570898A (en) | Alarm device for ore pulp leakage | |
| CN203672566U (en) | Leakage protection apparatus of fluid equipment | |
| CN105181057A (en) | Fuel spilling protection device for fuel consumption meter | |
| CN101799049B (en) | Mainshaft bearing protection system of drum rotary strainer in power station and control method thereof | |
| CN205808505U (en) | Liquid level warning monitoring system | |
| CN219756067U (en) | Pipeline weeping check out test set |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140219 |