CN202991710U - Hydraulic system internal leakage detecting device - Google Patents
Hydraulic system internal leakage detecting device Download PDFInfo
- Publication number
- CN202991710U CN202991710U CN 201220595691 CN201220595691U CN202991710U CN 202991710 U CN202991710 U CN 202991710U CN 201220595691 CN201220595691 CN 201220595691 CN 201220595691 U CN201220595691 U CN 201220595691U CN 202991710 U CN202991710 U CN 202991710U
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- valve body
- hydraulic
- hydraulic system
- internal leakage
- oil
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Abstract
The utility model relates to a hydraulic system internal leakage detecting device which is composed of a valve body, a main valve body cap and a sealing gasket. The valve body is radially fixedly mounted on a pipeline at a low-pressure end of a detected hydraulic element, a leakage detecting hole is coaxially arranged on the valve body, the main valve body cap is coaxially mounted on the valve body, and the sealing gasket is mounted in the main valve body cap. The hydraulic system internal leakage detecting device is mounted on the pipeline at the low-pressure end of the hydraulic element requiring the detection, like inlets of prefill valves, oil outlets of oil pumps, inlets of one-way valves, outlets of overflow valves and the like. When one hydraulic element needs to be detected to know whether internal leak or slight leak exists or not, hydraulic oil flows out from a small hole of the valve body, so that a fault point for the internal leakage of a hydraulic system can be quickly and safety found out. In addition, the hydraulic system internal leakage detecting device is simple in structure, convenient to use, safe, reliable and capable of saving detecting time and fault removing time for the internal leakage point in the hydraulic system, and meanwhile can be used as an oil exhausting valve to save waste of hydraulic oil during maintenance process of the hydraulic system.
Description
Technical field
The utility model belongs to the hydraulic control field, relates to the detection device of hydraulic system, lets out detection device in especially a kind of hydraulic system.
Background technique
Hydraulic transmission is the kind of drive of coming transferring energy and controlling as working medium with liquid, normally give several even dozens of hydraulic actuators and form a cover hydraulic system by one and even a plurality of oil pump feed, and in hydraulic system, the internal leakage of hydraulic oil is a kind of very common fault, and it has reflected the degree of wear of hydraulic element in the system.At present, without any the fault diagnosis measure, though minority is also by the pressure-measuring point pressure measurement of artificial timing to reserving with fault diagnosis, micro flowmeter perhaps is installed is measured leakage rate during most of hydraulic work system, perhaps regularly remove and keep in repair.When the hydraulic element leak pressure change very little or leakage rate very hour, even if also be difficult to accurate test with high-precision pressure meter or micro flowmeter, and greatly the time, easily damage again pressure meter or micro flowmeter when pressure variation or leakage rate.
Because the leakage of hydraulic element shows as internal leakage, leakage phenomenon be cannot see can not touch, the degree of wear of judgement leakage point and hydraulic element is very difficult in numerous hydraulic element; Especially the environment when leakage point is in high temperature, high humidity or narrow place, is difficult to accomplish corresponding Check processing.In a single day internal leakage appears in hydraulic system, many equipment operations such as system pressure, abutment pressure, pressure holding function, pressure changing-over, exercises program key point just can not get ensureing, not only affect the normal operation of complete equipment and whole production process, the serious danger that generation security incident and personal safety accident are arranged.Therefore, hydraulic system in the urgent need to a kind of reasonable in design, practical, safe and reliable, can judge at short notice leakage of hydraulic system point in let out detection device.
Summary of the invention
The purpose of this utility model is to overcome the prior art deficiency, provides in a kind of hydraulic system of letting out the fault point in can searching quickly and safely in hydraulic system and lets out detection device.
The technical solution adopted in the utility model is:
Let out detection device in a kind of hydraulic system, formed by valve body, valve cover mother, sealing gasket, described valve body radially is packed on the pipeline of tested hydraulic actuator low voltage terminal, the coaxial Leak testtion hole of being shaped with on valve body, coaxial installation valve cover is female on valve body, in the valve cover mother, sealing gasket is installed, by screwing of valve cover mother, sealing gasket is locked at the valve body lower end face.
And the diameter in described Leak testtion hole is φ 0.5mm-φ 10mm.
The utility model advantage and good effect are:
1, this detection device is arranged on the low voltage terminal pipeline of the hydraulic element that need detection, as be arranged on the entrance of liquid-filling valve, the unloading port place of oil pump, the inlet of one-way valve, the outlet port of relief valve etc., when needs check when letting out in whether certain hydraulic element exists or during minute leakage, open the valve cover mother, take off sealing gasket, have in the aperture of hydraulic oil from valve body and flow out, thereby can be quick, safety is let out the fault point in searching in hydraulic system, simple in structure, easy to use, safe and reliable, not only greatly saved hydraulic system in let out the inspection of fault point and fix a breakdown the time, also can be used as simultaneously fuel outlet valve, to save the waste of hydraulic oil in the hydraulic system maintenance process.
2, this detection device is arranged on the low voltage terminal of hydraulic element, can not cause equipment and life accident, uses very safe.
Description of drawings:
Fig. 1 is that the utility model is arranged on the structural representation (broken section) in hydraulic system;
Fig. 2 is structure cutaway view Amplified image of the present utility model.
Embodiment:
The utility model is described in further detail below by specific embodiment, and following examples are descriptive, is not determinate, can not limit protection domain of the present utility model with this.
Let out detection device in a kind of hydraulic system, detection device 3 radially is packed on the pipeline 2 of low voltage terminal of tested hydraulic element 4, in the present embodiment accompanying drawing, a stop valve 1 is installed also on the pipeline of low voltage terminal.
This device is comprised of valve body 5, valve cover mother 8, sealing gasket 7, this valve body radially is packed on the pipeline of tested hydraulic element low voltage terminal, the coaxial Leak testtion hole 6 that is shaped with on valve body, coaxial installation valve cover is female on valve body, in the valve cover mother, sealing gasket is installed, by screwing of valve cover mother, sealing gasket is locked at the valve body lower end face.
In the present embodiment, the diameter in described Leak testtion hole is φ 0.5mm-φ 10mm.
Working principle of the present utility model is:
Assembling is during hydraulic system, valve body is packed on the low voltage terminal pipeline that needs the hydraulic element that detect, as be arranged on liquid-filling valve the ingress, be arranged on oil pump the unloading port place, be arranged on one-way valve inlet, be arranged on the outlet port of relief valve etc.Before hydraulic work system, with the valve cover mother, sealing gasket is locked on valve body, makes it to bear same system pressure with pipeline.Open the valve cover mother when needs check when letting out in whether certain hydraulic element exists, take off sealing gasket, hydraulic element are during if any minute leakage, have in the Leak testtion hole of hydraulic oil from valve body to flow out, thereby can judge fast the hydraulic leak point.
In addition, can be used as fuel outlet valve and use when changing hydraulic element, bleed off from here the hydraulic oil in this section pipeline and element, cause the hydraulic oil waste when avoiding causing the hydraulic system maintenance.
Claims (2)
1. let out detection device in a hydraulic system, it is characterized in that: formed by valve body, valve cover mother, sealing gasket, described valve body radially is packed on the pipeline of tested hydraulic element low voltage terminal, the coaxial Leak testtion hole of being shaped with on valve body, coaxial installation valve cover is female on valve body, in the valve cover mother, sealing gasket is installed, by screwing of valve cover mother, sealing gasket is locked at the valve body lower end face.
2. let out detection device in hydraulic system according to claim 1, it is characterized in that: the diameter in described Leak testtion hole is φ 0.5mm-φ 10mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220595691 CN202991710U (en) | 2012-11-13 | 2012-11-13 | Hydraulic system internal leakage detecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220595691 CN202991710U (en) | 2012-11-13 | 2012-11-13 | Hydraulic system internal leakage detecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202991710U true CN202991710U (en) | 2013-06-12 |
Family
ID=48562894
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220595691 Expired - Fee Related CN202991710U (en) | 2012-11-13 | 2012-11-13 | Hydraulic system internal leakage detecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202991710U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105257618A (en) * | 2015-11-10 | 2016-01-20 | 浙江大学 | Closed oil film visualization device capable of measuring leakage of reciprocating sealing piston |
-
2012
- 2012-11-13 CN CN 201220595691 patent/CN202991710U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105257618A (en) * | 2015-11-10 | 2016-01-20 | 浙江大学 | Closed oil film visualization device capable of measuring leakage of reciprocating sealing piston |
| CN105257618B (en) * | 2015-11-10 | 2017-04-26 | 浙江大学 | Closed oil film visualization device capable of measuring leakage of reciprocating sealing piston |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130612 Termination date: 20131113 |